JP7623889B2 - How to move a structure - Google Patents

Description

The present invention relates to a method for moving a structure by using multiple power applying means to move the structure laterally.

Conventionally, a method for moving a structure, known as a traveling method, is known in which a structure is moved laterally using a jack as a power application means (see Patent Documents 1 and 2, etc.).

JP 2019-94732 A Japanese Unexamined Patent Publication No. 62-99515

In conventional methods for moving a structure, as the weight of the structure increases, the number of power imparting means must be increased or power imparting means with high resistance must be used, resulting in issues such as increased costs for the power imparting means and complicated control over the operation, monitoring, etc. of the power imparting means.
In view of the above-mentioned problems, the present invention provides a method for moving a structure that can reduce the cost of a power applying means and can facilitate control of the power applying means.

The method for moving a structure according to the present invention is a method for moving a structure laterally along a lateral movement path using a plurality of power applying means, characterized in that it uses a plurality of rear power applying means provided on the rear side of the structure in the movement direction to apply power to the structure, and a plurality of front power applying means provided on the front side of the structure in the movement direction to apply power to the structure, and uses a pressing means or a pulling means attached to the lateral movement path as the rear power applying means and the front power applying means, and the number of front power applying means is less than the number of rear power applying means.
In addition, the front power imparting means and the rear power imparting means are driven to move the structure laterally, and if the direction of travel of the structure deviates, the driving amount of each front power imparting means is adjusted to correct the direction of travel of the structure.
The rear power imparting means is provided on both ends of the structure in the width direction of the structure perpendicular to the traveling direction of the structure, and one or more means is provided between both ends of the structure in the width direction, while the front power imparting means is not provided on both ends of the structure in the width direction, but two or more means are provided between both ends of the structure in the width direction.
The present invention is also characterized in that two rear power applying means are provided at the center between both ends of the structure in the width direction, and two front power applying means are provided at the center between both ends of the structure in the width direction, and each of these central rear power applying means and each of the front power applying means are provided at positions equal distances from the positions of each end of the structure in the width direction.
According to the method for moving a structure according to the present invention, the cost of the power applying means can be reduced, and the power applying means can be easily controlled.
In addition, since it becomes possible to propel the structure and control its direction of travel, the structure can be moved accurately to its destination.

FIG. 1 is a perspective view showing an outline of a construction method for a steel structure (embodiment, example). FIG. 1 is a plan view showing an outline of a construction method for a steel structure (embodiment, example). FIG. 1 is a side view showing an outline of a construction method for a steel structure (embodiment, example). FIG. 13 is a side view showing a pillar formed separately into a lower end portion and a main portion of the pillar (embodiment example). Cross-sectional view of the lower end portion and main portion of the pillar (embodiment example). FIG. 4 is a cross-sectional view showing the structure of the lower end of the main pillar part (embodiment example). A diagram showing the underside and recess of a bottom plate provided at the lower end of the main part of the column (embodiment). FIG. 1 is a diagram showing an example of a construction procedure of a steel structure construction method (embodiment); FIG. 1 is a diagram showing an example of a construction procedure of a steel structure construction method (embodiment); FIG. 1 is a diagram showing an example of a construction procedure of a steel structure construction method (embodiment); FIG. 13 is a perspective view showing a state in which the main part of the pillar is moved by a power applying means (embodiment); FIG. 13 is a perspective view showing a state in which the main part of the pillar is moved up and down by a vertical movement means (embodiment);

The method for moving a structure according to the embodiment is a method for moving a structure, for example a movable steel structure 2M as a structure, in a moving direction M by using a plurality of power imparting means such as pressure jacks 13, 13..., as shown in, for example, Figures 1 to 3.
In this specification, the movement direction M of the structure refers to the direction in which the structure is moved, the front side of the movement direction of the structure refers to the side in which the structure is moved, and the rear side of the movement direction of the structure refers to the side opposite to the side in which the structure is moved. Hereinafter, the front side of the movement direction of the structure may be simply referred to as the "front side of the structure (steel frame structure 2M)" and the rear side of the movement direction of the structure may be simply referred to as the "rear side of the structure (steel frame structure 2M)."
In the structure moving method according to the embodiment, the number of front pressure jacks 13F (13) as power imparting means provided on the front side of a movably configured steel structure 2M to impart power to the steel structure 2M is made different from the number of rear pressure jacks 13R (13) as power imparting means provided on the rear side of the steel structure 2M to impart power to the steel structure 2M.
That is, as shown in Figures 1 and 2, a plurality of rear pressing jacks 13R are provided on the rear side of the steel structure 2M to apply power to the steel structure 2M, and a plurality of front pressing jacks 13F are provided on the front side of the steel structure 2M to apply power to the steel structure 2M, and the number of front pressing jacks 13F is made less than the number of rear pressing jacks 13R.
In this way, by making the number of front pushing jacks 13F less than the number of rear pushing jacks 13R, and having the multiple rear pushing jacks 13R and the multiple front pushing jacks 13F function as pushing jacks that propel (move forward) the steel structure 2M along the movement direction, and also having the multiple front pushing jacks 13F function as directional control jacks that control the movement direction of the steel structure 2M, a movement method for propelling and controlling the direction of the steel structure 2M has been realized.
1 and 2, the multiple rear pressure jacks 13R, 13R... and the multiple front pressure jacks 13F, 13F are driven simultaneously to propel the steel structure 2M along the moving direction. In this case, if the actual moving direction of the steel structure 2M deviates from the planned moving direction M, the extension stroke amount (drive amount) of the multiple front pressure jacks 13F, 13F is adjusted to correct the moving direction of the steel structure 2M, thereby moving the steel structure 2M while performing propulsion and moving direction control.
Specifically, as shown in Figures 1 to 3, when a steel structure 2M that is configured to be able to move laterally has two spans in the direction along the movement direction M and three spans in the width direction perpendicular to the movement direction M, the following is done.
In this case, rear pressing jacks 13R, 13R, 13R, 13R are installed respectively on the rear side of the four steel columns 3, 3, 3, 3 installed at a predetermined interval in the width direction on the rear side of the steel structure 2M, and front pressing jacks 13F, 13F are installed respectively on the rear side of the two steel columns 3, 3 located at the center in the width direction (i.e., the steel columns 3, 3 other than the steel columns 3, 3 located at both ends in the width direction) among the four steel columns 3 installed at a predetermined interval in the width direction on the front side of the steel structure 2M.
That is, the rear pressure jacks 13R, 13R at the center of the width direction and the front pressure jacks 13F, 13F at the center of the width direction are installed at positions equal distances from each end of the steel structure 2M in the width direction.
Then, the four steel columns 3, 3, 3 on the rear side of the steel structure 2M are pressed by the rear pressure jacks 13R, 13R, 13R, 13R, and the two steel columns 3, 3 on the front side of the center in the width direction of the steel structure 2M are pressed by the front pressure jacks 13F, 13F, thereby propelling the steel structure 2M along the moving direction M. At this time, if the actual moving direction of the steel structure 2M deviates from the planned moving direction M, the moving direction of the steel structure 2M can be corrected by adjusting the extension stroke amount of the multiple front pressure jacks 13F, 13F. That is, the steel structure 2M can be propelled along the moving direction M, and the moving direction of the steel structure 2M can be controlled.
According to the structure moving method of the embodiment, the front pressure jacks 13F, 13F are provided only on the rear side of the two steel columns 3, 3 at the center in the width direction at the front side of the steel structure 2M, so that the cost of the power applying means can be reduced and the power applying means can be easily controlled. Furthermore, since the steel structure 2M can be propelled and its direction of travel controlled, the steel structure 2M can be accurately moved to its destination.
An embodiment of a steel frame structure construction method employing the structure moving method of the present invention will be described below with reference to Figs.

Example A steel structure construction method according to an example includes a movement range setting step, a column forming step, a movement start point side step, a steel structure moving step, and a movement end point side step.
The movement range setting step is a step of setting a movement start point S and a movement end point E on the planned construction site 1, as shown in FIG.
1 and 2, the position where a lateral movement path 7, which will be described later, is provided is indicated by a two-dot chain line, and the position where a guide rail 8, which is installed parallel to the lateral movement path 7, is provided is indicated by a one-dot chain line.
In the column formation step, as shown in FIG. 4 , a column (steel column) 3 is formed by dividing it into a column lower end portion 4 and a column main portion 5 .
In other words, in the column formation step, the column 3 constituting the steel structure 2S assembled at the start point S of the movement, or the column 3 constituting the steel structure 2 constructed at the end point E of the movement, is formed by dividing it into the column lower end portion 4 and the column main portion 5.
That is, in the construction method for a steel frame structure of the embodiment, a column 3 formed separately into a lower end portion 4 and a main portion 5 is used.
In other words, the construction method for a steel structure of the embodiment is realized by using a column 3 having a lower end portion 4 and a main portion 5 connected to the lower end portion 4.
The step on the movement start point side is a step in which, at the movement start point S, a column main part 5 is provided on top of each column lower end part 4 attached to each column foundation 10, and a steel structure 2S is assembled by assembling reinforcing beams (steel reinforcing beams) 6 and beams (steel beams) 61 between each adjacent column main part 5, 5, to form a movable steel structure 2M (see Figures 1(b), 2(a), and 3(a)).
The steel structure moving step is a step in which a steel structure 2M configured to be movable at the movement start point side step is moved laterally from the movement start point S to the movement end point E, as shown in Figure 9 (c).
The movement end point side step is a step of constructing a steel structure 2 fixed to the column foundations 10, 10... at the movement end point E by fixing each of the column main parts 5, 5... of the steel structure 2M that has been moved laterally to each of the column lower ends 4, 4... fixed to the column foundations 10, 10... at the movement end point E, as shown in Figure 10 (c) (see Figures 1 (c), 2 (b), and 3 (b)).

In the construction method for the steel frame structure, after setting a start point S and an end point E of movement on a planned construction site 1, first, independent column foundations 10, 10... are constructed on the ground G at the start point S and the end point E of movement as shown in Fig. 8(a), and a reinforced concrete floor F of the ground floor is constructed between each adjacent column foundation 10, 10.... The reinforced concrete floor F is constructed, for example, as shown in Fig. 8(a), by backfilling the soil J and then pouring concrete on the soil J, or by pouring concrete into a slab formwork not shown.
The start point S of the movement is a location where a temporary steel structure 2S is assembled on column foundations 10, 10... provided at the start point S of the movement, and configured into a movable steel structure 2M, which is then moved to the end point E of the movement.
In addition, the end point E of movement is the end point of movement of the steel structure 2M moved from the starting point S, and is the location where the desired steel structure 2 is constructed by fixing the moved steel structure 2M to the column foundations 10, 10....

As shown in Figure 8 (a), the column foundation 10 is composed of a column base base 20 provided in a foundation concrete pouring space formed by being surrounded by a formwork not shown in the figure, reinforcement not shown in the figure assembled in the foundation concrete pouring space, and foundation concrete 30 which is concrete poured in the foundation concrete pouring space and solidified.
The column base 20 is composed of a concrete section (waste concrete) 21 provided at the bottom of the foundation concrete pouring space, a set frame 23 fixed to the concrete section 21 with anchors 22, a plurality of anchor bolts 24, 24... attached to the set frame 23 and extending upward, and a gauge plate 25 fixed to the upper ends of the plurality of anchor bolts 24, 24... with nuts not shown.
Then, concrete is poured into the foundation concrete pouring space to form the foundation concrete 30, and the upper ends of the multiple anchor bolts 24, 24... are configured to protrude above the upper end surface 30t of the foundation concrete 30 (see Figure 8 (b) and Figure 4).

The column lower end 4 is a hollow, short, square column made of metal such as steel and having a U-shaped cross-section, and is equipped at its lower end with a base plate 41 fixed to the column foundation 10, and at its upper end with a fixing surface 42 to which the lower end of the column main part 5 is fixed.
5, the column lower end 4 is configured with a hollow short rectangular column 4B with upper and lower ends (both ends) open, which is made by combining four flat steel plates 4A, 4A..., a base plate 41 made of a flat steel plate having a rectangular plate surface larger than the cross-sectional area of the opening at the lower end of the rectangular column 4B and provided to close the opening at the lower end of the rectangular column 4B, and an upper end side plate 43 made of a flat steel plate having a rectangular plate surface larger than the cross-sectional area of the opening at the upper end of the rectangular column 4B and provided to close the opening at the upper end of the rectangular column 4B. In this case, the fixing surface 42 of the column lower end 4 is formed by the plate surface that becomes the upper surface of the upper end side base plate 43.
In addition, for example, the opening edge of the lower end of the rectangular pillar 4B is welded to the plate surface that becomes the upper surface of the base plate 41 so that the central axis of the rectangular pillar 4B coincides with the center of the rectangular plate surface of the base plate 41, and the opening edge of the upper end of the rectangular pillar 4B is welded to the plate surface that becomes the lower surface of the upper end plate 43 so that the central axis of the rectangular pillar 4B coincides with the center of the rectangular plate surface of the upper end plate 43, thereby forming the column lower end portion 4.
In addition, for example, in a factory or the like, an erection piece (erection piece) 44 is attached by welding to each of the four side surfaces that form the peripheral surface near the upper end of the square column 4B at the lower end portion 4 of the column.

The main column part 5 is a hollow rectangular column made of metal such as steel that is longer than the lower column end part 4 and, as shown in Figures 6 and 7, is configured with a bottom plate 51 at its lower end that has a lower surface 52 and a recess 55 that is recessed upward from the lower surface 52.
Like the column lower end portion 4, the column main portion 5 is configured, for example as shown in FIG. 5, by combining four flat steel plates 5A, 5A... to form a long, hollow rectangular column 5B with open upper and lower ends (both ends), and a bottom plate 51 made of a steel plate having a rectangular plate surface of a size corresponding to the cross-sectional area of the opening at the lower end of the rectangular column 5B and arranged to close the opening at the lower end of the rectangular column 5B.
In addition, for example, the rectangular column 5B and the bottom plate 51 are welded together to form the main column part 5, with the bottom plate 51 fitted into the inside of the opening at the lower end of the rectangular column 5B so that the central axis of the rectangular column 5B coincides with the center of the rectangular plate surface of the bottom plate 51.
As shown in Fig. 4, a diaphragm 53 protruding from the peripheral surface of the lower end side of the rectangular column 5B of the column main part 5 is provided, and the reinforcing beam 6 is joined to the diaphragm 53. The diaphragm 53 is preferably configured as a through diaphragm.
That is, the main column portion 5 is a steel column having the above-mentioned bottom plate 51 provided at the lower end side of a normal steel column.
In addition, for example, in a factory or the like, erection pieces (erection pieces) 54 are attached by welding to each of the four side surfaces that form the peripheral surface near the lower end of the rectangular column 5B of the column main part 5.

6 and 7, the recess 55 formed on the plate surface that becomes the lower surface 52 of the bottom plate 51 has a rear wall 56B, a left wall 56L, and a right wall 56R located on the rear side (left side in FIG. 6) and both left and right sides (both sides in the direction perpendicular to the paper surface of FIG. 6 and the top and bottom sides in FIG. 7) in the moving direction M of the main column part 5, and is also provided with a front opening 57 that is open on the front side in the moving direction M of the main column part 5. The moving direction M of the main column part 5 refers to the moving direction of the main column part 5 when a steel structure 2M that is configured to be laterally movable is moved.
In addition, at the boundary portion between the bottom surface 58 of the recess 55 and the rear side wall 56B, left side wall 56L, and right side wall 56R of the recess 55, a groove portion 59 is formed to avoid contact between a corner (hereinafter referred to as a "boundary corner") 93 which is the boundary between the rear side surface 91, left side surface, and top surface 92 of a friction reduction plate 9 as a friction reduction material described later, and a corner (hereinafter referred to as a "boundary corner") which is the boundary between the bottom surface 58 of the recess 55 and the rear side wall 56B, left side wall 56L, and right side wall 56R.
For example, as shown in FIG. 7 , the bottom surface 58 of the recess 55 is provided with a narrow groove portion 59 formed to extend beyond and along the boundary line between the bottom surface 58 of the recess 55 and the rear side wall 56B, left side wall 56L, and right side wall 56R of the recess 55, i.e., the narrow groove portion 59 is recessed further upward than the bottom surface 58 along the periphery of the bottom surface 58 of the recess 55.
In other words, in order to avoid contact between the peripheral boundary corner 93 of the upper surface 92 of the friction reduction plate 9 and the peripheral boundary corner of the bottom surface 58 of the recess 55, and to form a good surface contact state between the rear side surface 91 of the friction reduction plate 9 and the rear wall 56B of the recess 51, the groove portion 59 is provided in the recess 55.

In addition, the size of the lower surface 52 of the bottom plate 51 which forms the lower surface of the column main part 5 is configured to be smaller than the size of the fixing surface 42 which forms the upper surface of the column lower end part 4.
In this way, by making the size of the underside 52 of the column main part 5 smaller than the size of the fixed surface 42 of the column lower end part 4, when welding the outer periphery of the underside 52 of the column main part 5 to the fixed surface 42 of the column lower end part 4 as described below, even if the underside 52 of the column main part 5 is not accurately positioned at a predetermined position on the fixed surface 42 of the column lower end part 4, as long as the entire underside 52 of the column main part 5 is positioned on the fixed surface 42 of the column lower end part 4, it is possible to weld and fix the outer periphery of the underside 52 of the column main part 5 to the fixed surface 42 of the column lower end part 4, which makes it easier to position the underside 52 of the column main part 5 relative to the fixed surface 42 of the column lower end part 4 when moving the column main part 5.

At the movement end point E, the lower end portions 4, 4 . . . are fixed in advance to the respective column bases 10, 10 .
That is, at the end point E of the movement, after a base mortar 26 is laid on the foundation concrete 30 of the column foundation 10, after a predetermined time has elapsed, a construction device not shown is used to adjust the distance between the base plate 41 of the column lower end 4, which is temporarily fixed to the anchor bolts 24, 24..., and the foundation concrete 30 to correct the erection distortion of the column lower end 4 (adjusting the verticality of the column lower end 4), and then a nut 28 is fastened to the anchor bolt 24 via a washer 27 to perform the final tightening work of fixing the base plate 41 of the column lower end 4 to the anchor bolt 24 of the column foundation 10, thereby fixing the column lower end 4 to the column foundation 10.
Any type of construction device may be used as long as it is capable of correcting the insertion distortion of the lower end portion 4 of the column.

More specifically, the movement start side step includes a steel structure assembly step and a steel structure movement preparation step.

In the steel structure assembly step, the main column parts 5, 5... are removably attached to the lower column ends 4, 4... attached to the column foundations 10, 10... of the movement starting point S, and the steel structure 2S is assembled with the reinforcing beams 6, 61 assembled between the adjacent main column parts 5, 5 that are removably attached.

In the steel frame structure assembly step, first, the lower end portions 4 of the columns are placed on the respective column foundations 10, 10 . . . formed at the movement starting point S.
At the movement start point S, as shown in Fig. 8(a), after forming the foundation concrete 30 of the column foundation 10, as shown in Fig. 8(b), the gauge plate 25 of the column base 20 is removed, and the base mortar 26 is provided on the foundation concrete 30, and then the upper end side of the anchor bolt 24 is inserted through the through hole 45 formed in the base plate 41 of the column lower end 4, and the base plate 41 of the column lower end 4 is installed on the foundation concrete 30 of the column foundation 10 via the base mortar 26 (see Fig. 4). In other words, the base plate 41 of the column lower end 4 is temporarily fixed to the anchor bolt 24 of the column foundation 10 by temporarily fastening the nut 28 to the anchor bolt 24 via the washer 27.
That is, at the starting point S of the movement, the lower end portions 4, 4... of the columns are temporarily fixed to each of the column foundations 10, 10..., and the main column parts 5, 5... are removably attached to the lower end portions 4, 4... of the columns temporarily fixed to each of the column foundations 10, 10.... After assembling the steel structure 2S, a nut 28 is fastened to the anchor bolt 24 via a washer 27, and the base plate 41 of the lower end portion 4 of the column is fixed to the anchor bolt 24 of the column foundation 10, thereby fixing the lower end portion 4 to the column foundation 10.

The installation work for removably attaching the main column part 5 to the lower column end part 4 is preferably performed using an erection device 11 that is removably attached to the lower column end part 4 and the main column part 5 and that can perform erection adjustments such as adjusting the misalignment, level, and tilt between the lower column end part 4 and the main column part 5.

In addition, in the steel structure assembly step, construction work is carried out using a construction device 11 that is removably attached to the column lower end portion 4 and the column main portion 5 in order to removably attach the column lower end portion 4 and the column main portion 5, and the construction device not shown in the figure described above.
In other words, it is preferable to use these construction devices 11 and the construction device not shown in the figure described above to perform the work of correcting the erection distortion (adjusting the verticality) of the column 3 composed of the column lower end portion 4 and the column main portion 5, while assembling the reinforcing beams 6, 61 between the column main portions 5, 5 of adjacent columns 3, 3, thereby assembling the steel structure 2S at the starting point S of the movement.

In other words, as the construction device not shown in the figure, it is sufficient to use a construction device that can correct the insertion distortion (adjust the verticality) of the lower end portion 4 of the column or the column 3 relative to the column foundation 10.
Furthermore, as the above-mentioned construction device 11, a construction device capable of performing construction adjustments such as adjusting the misalignment, level adjustment, and tilt adjustment between the column lower end portion 4 and the column main portion 5, i.e., construction adjustment of the column main portion 5 relative to the column lower end portion 4, may be used.

The construction work of the steel structure 2S at the movement starting point S is carried out, for example, with each of the column main parts 5, 5 . . . for one section removably attached to each of the column lower end parts 4, 4 .
That is, a reinforcing beam 6 is assembled between the lower ends of adjacent column main parts 5, 5. Then, beams 61 are assembled to the adjacent column main parts 5, 5 at the beam insertion positions supporting the second floor, and a deck plate 62 is laid between the beams 61, 61. The second joint column is then connected, and a beam 61 is assembled to the beam insertion position supporting the third floor, and a deck plate 62 is laid between the beams 61, 61. A beam 61 is also assembled to the beam insertion position supporting the rooftop floor, and a deck plate 62 is laid between the beams 61, 61. Although FIG. 1 illustrates a steel structure 2S for constructing a three-story steel-framed building, the number of floors may be determined arbitrarily.
In this way, the construction method for a steel structure according to the embodiment is realized by using a steel structure including columns 3 each formed by connecting the lower end portion 4 and the main portion 5, and beams connected to adjacent columns 3 and columns 3. The steel structure may be configured to include at least the beam 61 described above as a beam.

The steel structure 2S constructed at the movement start point S, and the laterally movable steel structure 2M constructed at the movement start point S in the steel structure movement preparation step described below, are at least configured to be self-supporting.

In addition, in the construction method for the steel structure of the embodiment, a reinforcing beam 6 is attached between the lower ends of adjacent main column parts 5, 5 to create a steel structure, which not only reinforces the steel structure itself but also suppresses distortion and twisting of the steel structure when it is moved to the end point E of movement.

In the steel structure movement preparation step, the main column parts 5, 5... of the steel structure 2S assembled at the movement starting point S in the steel structure assembly step are removed from the lower column ends 4, 4... to form a steel structure 2M that can be moved laterally.
That is, after assembling a reinforced steel structure 2S at the starting point S of movement using the construction device 11, the construction device 11 is removed to remove each of the main column parts 5, 5... of the reinforced steel structure 2S from each of the lower column ends 4, 4... to form a reinforced steel structure 2M that can be moved laterally.

More specifically, the steel structure moving step includes a lateral movement path configuration step and a movement step.
In the lateral movement path constructing step, a lateral movement path 7 is constructed extending along the movement direction M between adjacent column main parts 5, 5 along the movement direction.
In the moving step, the steel structure 2M configured to be laterally movable is moved laterally from the movement start point S to the movement end point E via the lateral movement path 7.

Specifically, in the lateral movement path construction step, a movement path forming member extending along the movement direction M is installed between adjacent column lower ends 4, 4 along the movement direction M, and a lateral movement path 7 is constructed in which the upper surface of a smooth surface forming member 75 attached to the fixed surface 42 of the column lower end 4 fixed to the column foundation 10 and the upper surface of a smooth surface forming member 75 attached to the upper end surface of the movement path forming member form a road surface at the same horizontal level.

The travel path forming member is composed, for example, of a main rail material 70 installed between adjacent lower end portions 4, 4 of the columns along the travel direction M, and a column edge rail material 71 installed at the column edge of the lower end portion 4 of the columns.
The main rail material 70 and the column edge rail material 71 are made of, for example, H-shaped steel, and are configured so that one flange of the H-shaped steel is fixed to the reinforced concrete floor F between the lower end portions 4, 4 of the columns, and the outer surface of the other flange of the H-shaped steel becomes the upper end surface.
The movement path forming member is provided so as to be continuous along the movement direction M. For example, the movement path forming member is provided so as to be continuous in a straight line along the movement direction M, or is provided so as to be continuous in a curved line along the movement direction M.

In addition, in the lateral movement path construction step, a guide rail 8 is provided on the reinforced concrete floor F parallel to the lateral movement path 7, and a support means is provided that supports the steel structure 2M, which is configured to be able to move laterally, on the guide rail 8, so that the steel structure is configured to be able to move laterally while being guided by the guide rail 8.
Specifically, as shown in Figure 11, the support means is composed of a support beam 65 extending from the reinforcing beam 6 toward the guide rail 8, and a guide roller 66 provided on the lower end side of the support beam 65.
The guide rail 8 is formed by using a shaped steel such as an H-shaped steel, and is fixed to the reinforced concrete floor F so that one flange of the H-shaped steel becomes a guide rail surface formed by a vertical plane.
Therefore, by configuring the guide rollers 66 to roll on the guide rail surface, the steel structure 2M can be moved smoothly and accurately in a straight line in the direction of movement M, thereby enabling the lateral movement of the steel structure 2M to be performed smoothly and accurately.

Then, in the movement step, a friction reduction plate 9 serving as a friction reduction material is placed in the recess 55 of the bottom plate 51 of the column main part 5 of the steel structure 2M configured to be able to move laterally, and the friction reduction plate 9 is caused to protrude below the underside 52 of the bottom plate 51. The steel structure 2M is then moved laterally to the end point E of movement while the friction reduction plate 9 is brought into contact with the road surface of the lateral movement path 7.
In other words, when the steel structure 2M, which is configured to be able to move laterally, moves, the friction reduction plate 9 is brought into contact with the road surface of the lateral movement path 7, and the steel structure 2M is moved in a non-contact state where the underside 52 of the bottom plate 51 of the column main part 5 of the steel structure 2M is not in contact with the road surface of the lateral movement path 7.
Therefore, by contact between the road surface of the lateral movement path 7, which is formed into a smooth surface by the smooth surface forming member 75, and the friction reduction plate 9, the frictional resistance during movement of the steel structure 2M can be reduced, making it possible to easily move the steel structure 2M laterally.

The friction reduction plate 9 may be a friction reduction plate made of a low-friction material such as monomer cast nylon (polyamide resin). The friction reduction plate 9 is made of a rectangular plate material. The length of the long side of the rectangular plate constituting the friction reduction plate 9 is longer than the length from the rear side wall 56B of the recess 55 to the front opening 57, the length of the short side of the rectangular plate is formed to correspond to the distance between the left side wall 56L and the right side wall 56R of the recess 55, and the height (plate thickness) of the rectangular plate is longer than the length from the bottom surface 58 of the recess 55 to the lower surface 52 of the bottom plate 51.
In other words, the recess 55 is formed by removing a portion of the underside 52 of the bottom plate 51, and has a rear wall 56B positioned rearward in the moving direction M of the column main part 5 and in contact with the rear side surface 91 of the friction reduction plate 9, and is formed with a front opening 57 that is open on the front side in the moving direction M, and the depth dimension of the recess 55 from the underside 52 to the bottom surface 58 of the bottom plate 51 is formed to be smaller than the plate thickness dimension of the friction reduction plate 9 inserted between the bottom surface 58 of the recess 55 and the road surface of the lateral movement path 7.

Then, in the moving step, when the friction reduction plate 9 is installed in the recess 55 of the column main part 5, the rear side surface 91 at one end of the friction reduction plate 9 is brought into contact with the rear wall 56B of the recess 55, and the front side surface 99 at the other end of the friction reduction plate 9 is made to protrude from the recess 55 through the front opening 57. That is, the rear end side surface 91 formed by one side surface between the short sides of the rectangular parallelepiped that forms the friction reduction plate 9 is brought into contact with the side wall 56B of the recess 55, and the front side surface side 99, which is the other side surface between the short sides of the rectangular parallelepiped, is installed in a state in which it protrudes outward from the recess 55 through the front opening 57 of the recess 55.
When the steel structure 2M is moved laterally in this state, the recess 55 has the above-mentioned groove portion 59, so that the rear side surface 91 of the friction reduction plate 9 and the rear wall 56B of the recess 55 can be in reliable surface contact, and the force applied to the bottom plate 51 can be reliably transmitted to the rear side surface 91 of the friction reduction plate 9 via the rear wall 56B of the recess 55, thereby allowing the steel structure 2M to be moved laterally more smoothly.
That is, when the steel structure 2M moves, force is reliably transmitted from the rear wall 56 of the recess 55 of the column main part 5 to the rear side surface 91 of the friction reduction plate 9, and the steel structure 2M and the friction reduction plate 9 move together, thereby reducing friction during lateral movement of the steel structure 2M. Furthermore, after the steel structure 2M has moved, when removing the friction reduction plate 9 from the recess 55 at the step on the movement end point side, the front side surface 99 protruding outward from the recess 55 can be held via the front opening 57, making it possible to easily remove the friction reduction plate 9 from the recess 55.

As shown in FIG. 12, the work of installing the friction reduction plate 9 in the recess 55 and the work of easily removing the friction reduction plate 9 from the recess 55 are performed with the main pillar part 5 moved upward using an up-down movement jack 15 as a vertical movement means.
In this case, by using reinforcing beams 6, 6 as support parts when lifting the reinforced steel frame structure with the up-and-down jack 15, as shown in Figure 12, the steel frame structure can be easily lifted with the up-and-down jack 15 and the burden on the steel frame structure when lifting it with the up-and-down jack 15 can be reduced.
In addition, in FIG. 12, reference numeral 16 denotes a height adjustment stand for adjusting the installation height of the vertically movable jack 15 .

In addition, in the movement step, the power for moving the steel structure 2M, which is configured to be laterally movable, laterally from the start point S to the end point E via the lateral movement path 7 is, for example, a pressing force from a pressing jack 13 (13F, 13R) as a power imparting means.
The arrangement of the pressing jacks 13, 13... is such that, for example, in the steel structure 2M of Figure 1(b), rear pressing jacks 13R (13) are installed on the rear side of each of the four column main parts 5, 5... located on the rear side of the steel structure 2M in order to apply a pressing force to each of the four column main parts 5, 5... located on the rear side of the steel structure 2M, and in the four column main parts 5, 5... located on the front side of the steel structure 2M, front pressing jacks 13F (13) are installed on the rear side of each of the two central column main parts 5, 5 other than the column main parts 5, 5 on the left and right sides of Figure 1(b).
In other words, the number of front pressure jacks 13F installed on the front side of the steel structure 2M is made less than the number of rear pressure jacks 13R installed on the rear side of the steel structure 2M, and the four pressure jacks 13R installed on the rear side of the steel structure 2M and the two pressure jacks 13F installed on the center of the front side of the steel structure 2M in the width direction are driven to move the steel structure 2M laterally, and if the direction of travel of the steel structure 2M deviates, the direction of travel of the steel structure 2M is corrected by adjusting the extension stroke amount of the two pressure jacks 13F, 13F on the front side of the steel structure 2M.
In this way, by reducing the number of front pressing jacks 13F installed on the front side of the steel structure 2M compared to the number of rear pressing jacks 13R installed on the rear side of the steel structure 2M, the cost of the pressing jacks 13 can be reduced, and the direction of travel of the steel structure 2M can be corrected while moving it laterally, so that the steel structure 2M can be moved accurately to the end point E of movement.
In addition, since the number of pressure jacks 13 can be reduced, control of the pressure jacks 13 can be facilitated.
As shown in FIG. 11, the piston side of the pressing jack 13 (13F, 13R) is connected to a mounting piece 12 attached to the lower end of the side surface on the rear side in the direction of movement of the main column part 5, and the fixing device 14 provided on the cylinder side is fixed to a jack mounting rail 17 or a main rail material 70 installed at the starting point S, and then the piston is extended.

In the step on the movement end point side, the main column part 5 of the steel structure 2M that has been moved laterally to the movement end point E is moved upward using the up-down jack 15, and the friction reduction plate 9 is removed from the recess 55 of the bottom plate 51 of the main column part 5. In addition, the smooth surface forming member 75 attached to the fixed surface 42 that becomes the upper surface of the lower end part 4 of the column is removed. Then, a metal plate, for example a steel plate 51A (see Figures 10 (b) and (c)) is installed in the recess 55 from which the friction reduction plate 9 has been removed, and the outer periphery of the lower surface 52 of the main column part 5 is welded and joined to the fixed surface 42 that becomes the upper end surface of the lower end part 4 of the column. Furthermore, on the front opening 57 side of the recess 55, the steel plate 51A and the fixed surface 42 of the lower end part 4 of the column are welded and joined, and the steel plate 51A and the bottom plate 51 of the main column part 5 are welded and joined, thereby constructing the steel structure 2 at the movement end point E.
The steel plate 51A used has a thickness dimension that is the same as the depth dimension of the recess 55 from the lower surface 52 of the column main part 5 to the bottom surface 58 of the recess 55.

After the welding work is completed, the reinforcing beams 6 and supporting beams 65 are removed from the steel structure 2 (see FIG. 10(c)). The removed reinforcing beams 6 and supporting beams 65 can be reused in other parts of the steel structure 2, or when constructing a steel structure other than the steel structure 2, which is preferable because it allows for effective use of the reinforcing beams 6 and supporting beams 65, i.e., effective use of resources.

Then, a steel-frame building is constructed by constructing, for example, exterior walls, floor slabs, and interior decoration on the steel-frame structure 2 (see Figures 1(c), 2(b), and 3(b)) constructed at the end point E of the movement.

An example of a construction procedure according to the steel frame structure construction method of the embodiment will be described below with reference to Figs.
First, as shown in Figure 8(a), column foundations 10, 10... are constructed at a movement start point S and a movement end point E at a planned construction site 1 in accordance with the spacing (span) of columns 3, 3 of a steel frame structure 2 to be constructed, and a reinforced concrete floor F is constructed between the column foundations 10, 10.... If the movement start point S and the movement end point E are separated from each other, it is sufficient to construct the column foundations 10, 10... and the reinforced concrete floor F between the movement start point S and the movement end point E as well.
8(b), the lower end portions 4 of the columns are temporarily fixed to the respective column foundations 10, 10 of the movement starting point S. At this time, a smooth surface forming member 75 such as a stainless steel sheet is attached to the fixing surface 42 of the lower end portions 4 of the columns.
8(c), the construction device 11 is installed to removably attach the column main parts 5, 5 to the lower end parts 4, 4, and an unillustrated construction device is installed on the lower end part 4 side of the column to assemble the column 3. While correcting the erection distortion of the column 3 (adjusting the verticality), the reinforcing beam 6 is assembled between the lower end sides of the column main parts 5, 5 of adjacent columns 3, 3. After the assembly of the reinforcing beam 6 is completed, the beams 61 of the second floor are assembled and the deck plate 62 of the second floor is laid. Then, the beams 61 for the desired number of floors are assembled and the deck plate 62 is laid, and the desired steel structure 2S is constructed at the movement start point S.
Before constructing the steel frame structure 2S, the main rail material 70 is installed on the reinforced concrete floor F between the lower end portions 4, 4 of the columns adjacent to each other along the moving direction M, and the column-side rail material 71 is installed on the reinforced concrete floor F at the column-side of the lower end portion 4 of the column. In this case, as shown in Figures 8(c) and 9(a), the main rail material 70 may be installed first and then the column-side rail material 71, or conversely, the column-side rail material 71 may be installed first and then the main rail material 70.
At this time, smooth surface forming members 75 such as stainless steel sheets are attached in advance to the upper end surfaces 74 of the main rail material 70 and the upper end surfaces 74 of the column-side rail material 71. That is, in order to reduce friction when the movable steel structure 2M is moved later, smooth surface forming members 75 such as stainless steel sheets are attached to the fixed surfaces 42 of the column lower ends 4, and similarly, smooth surface forming members 75 such as stainless steel sheets are also attached to the upper end surfaces 74 of the main rail material 70 and the upper end surfaces 74 of the column-side rail material 71.
Once the steel structure 2S has been constructed at the movement start point S, as shown in Fig. 9(a), the construction device 11 and other construction devices not shown are removed to construct a movable steel structure 2M at the movement start point S. Then, the vertically movable jack 15 is used to move the main column part 5 upward (slightly lift it up) and a friction reduction plate 9 is installed between the recess 55 in the bottom plate 51 of the main column part 5 and the smooth surface forming member 75 attached to the fixed surface 42 of the lower end part 4 of the column, and then the vertically movable jack 15 is lowered to lower the main column part 5 (see Fig. 9(a)).
Then, as shown in Figure 9 (a), a mounting piece 12 for attaching one end of a rear pressure jack 13R (13) is attached to the rear side in the movement direction at the lower end side of the four main column parts 5 installed on the rear side of the steel structure 2M, and a jack mounting rail 17 is installed on each of the reinforced concrete floors F located rearward of the four main column parts 5 installed on the rear side of the steel structure 2M.
Then, as shown in FIG. 9(b), one end of the rear pressing jack 13R is attached to the mounting piece 12, and the fixing device 14 provided on the other end of the rear pressing jack 13R is fixed to the jack mounting rail 17, thereby placing the rear pressing jack 13R in a state where it can generate a reaction force (see FIG. 11).
Similarly, front pressure jacks 13F (13) are also installed behind the two main column parts 5 installed on the front side of the steel structure 2M.
For example, the mounting piece 12 is attached so as to be aligned next to the erection piece 54 .
11, for example, on each side surface located in the front-rear direction of the movement direction M at the lower end side of the column main part 5, one erection piece 54 is provided near the boundary between the adjacent left and right side surfaces, and on each side surface located in the left-right direction of the movement direction M at the lower end side of the column main part 5, one erection piece 54 is provided at the center of each side surface. In this case, as shown in FIG. 11, for example, on the side surface located on the rear side of the movement direction M at the lower end side of the column main part 5, the mounting piece 12 is provided so as to be located in the center between the left and right.
Also, as shown in Figure 11, for example, on each side surface located in the front-to-back direction of the movement direction M at the lower end portion 4 of the column, one construction piece 44 is provided near the boundary between the adjacent left and right side surfaces, and on each side surface located in the left-to-right direction of the movement direction M at the lower end portion 4 of the column, one construction piece 44 is provided in the center position of each side surface.
9(c), while driving the rear pressure jack 13R and the front pressure jack 13F, the rear pressure jack 13R and the front pressure jack 13F are extended by one stroke to push and move the movable steel structure 2M in the moving direction M, and the rear pressure jack 13R and the front pressure jack 13F are rearranged. In this manner, by repeating the driving of the rear pressure jack 13R and the front pressure jack 13F and the rear pressure jack 13R and the front pressure jack 13F rearrangement, the movable steel structure 2M is moved laterally to the moving end point E. Also, if the moving direction of the steel structure 2M deviates from the expected moving direction M, the amount of extension stroke of the front pressure jack 13F (13) is adjusted to correct the deviation in the moving direction of the steel structure 2M.
Furthermore, any deviation in the direction of travel of the steel structure 2M can be detected, for example, by using a surveying instrument or the like as a monitoring device to sequentially monitor the marks on the main part of the column 5 and the direction of the main part of the column 5, etc., during the movement of the steel structure 2M.
As shown in Figure 10 (a), the steel structure 2M is moved laterally to the end point E of movement, and then the column edge rail material 71 is removed. Then, the vertically movable jack 15 is used to move the column main part 5 upward (slightly lift it) to remove the friction reduction plate 9 from between the recess 55 in the bottom plate 51 of the column main part 5 and the fixed surface 42 of the column lower end 4, and the smooth surface forming member 75 attached to the fixed surface 42 of the column lower end 4 is removed. After that, the vertically movable jack 15 is lowered to lower the column main part 5.
Then, as shown in Figure 10 (a), the construction device 11 is reattached to the main column part 5 and the lower column end part 4 of the steel structure 2M that has been moved laterally to the end point E of movement, and the work of correcting the erection distortion of the lower column end part 4 and the main column part 5 is performed.
After the plumbing distortion correction work is performed, as shown in Fig. 10(b), the construction pieces 44, 54 are removed, and then the outer periphery of the lower surface 52 of the column main part 5 and the fixing surface 42 of the column lower end 4 are welded to fix the column main part 5 and the column lower end 4. In this case, as described above, a steel plate 51A is inserted between the recess 55 and the bottom surface 58 of the column main part 5 and the fixing surface 42 of the column lower end 4, for example, through the front opening 57 of the recess 55, and the steel plate 51A and the fixing surface 42 of the column lower end 4 are welded and joined on the front opening 57 side of the recess 55, and the steel plate 51A and the bottom plate 51 of the column main part 5 are welded and joined, so that the entire circumference of the outer periphery of the lower surface 52 of the column main part 5 can be reliably welded to the fixing surface 42 of the column lower end 4.
After the welding work is completed, as shown in Figure 10 (c), the reinforcing beams 6, support beams 65, and main rail material 70 are removed, thereby constructing the desired steel structure 2 with the columns 3 fixed to the column foundations 10, 10... at the end point E of the movement.

According to the construction method for a steel structure of the embodiment, it is possible to eliminate the need for the work of aligning the fixing holes of each base plate provided at the lower ends of the numerous columns of the steel structure with the corresponding screw holes of each column fixing part, as in Patent Document 2, thereby making it possible to provide a construction method for a steel structure with excellent workability.
In addition, since the column foundations 10 for attaching the column lower ends 4 are constructed at the movement starting point S, the construction work of assembling the steel frame structure 2S can be performed accurately at the movement starting point S, and the work of constructing the laterally movable steel frame structure 2M can be performed safely. Furthermore, after the laterally movable steel frame structure 2M is moved to the movement end point E, the steel frame structure can be constructed at the movement starting point S by utilizing the column lower ends 4, 4... fixed to the column foundations 10, 10... at the movement starting point S.

In the embodiment, in the lateral movement path forming step, a movement path forming member extending along the movement direction M is installed between the column lower ends 4, 4 adjacent to each other along the movement direction M, and the upper surface of the smooth surface forming member 75 attached to the fixed surface 42 of the column lower end 4 and the upper surface of the smooth surface forming member 75 attached to the upper end surface 74 of the movement path forming member are configured to be the same horizontal level road surface to form the lateral movement path 7, and in the movement step, a friction reduction plate 9 is installed in the recess 55 of the bottom plate 51 of the column main part 5 of the steel structure 2M configured to be able to move laterally, the friction reduction plate 9 is made to protrude below the lower surface 52 of the bottom plate 51, and the steel structure 2M is moved laterally to the movement end point E while the friction reduction plate 9 is in contact with the road surface of the lateral movement path 7. However, if the fixed surface 42 of the column lower end 4 itself and the upper end surface 74 of the movement path forming member itself are configured to function as a smooth road surface, there is no need to provide the above-mentioned smooth surface forming member 75.
That is, in the lateral movement path construction step, a movement path forming member extending along the movement direction M is installed between adjacent column lower ends 4, 4 along the movement direction M, and a lateral movement path 7 may be constructed in which the fixed surface 42 of the column lower end 4 fixed to the column foundation 10 and the upper end surface 74 of the movement path forming member form a road surface at the same horizontal level.

In the embodiment, a steel plate 51A is placed in the recess 55 from which the friction reduction plate 9 has been removed at the step on the movement end point side, and the steel plate 51A is welded and joined to the fixed surface 42 of the column lower end 4 at the front opening 57 of the recess 55, and the steel plate 51A is also welded and joined to the bottom plate 51 of the column main part 5. However, it is also possible not to place the steel plate 51A as a metal plate in the recess 55.

In the embodiment, the recess 55 formed in the bottom plate 51 of the main column part 5 has a rear wall 56B located on the rear side of the moving direction M of the main column part 5, and a front opening 57 that is open on the front side of the moving direction M of the main column part 5. However, the recess 55 formed in the bottom plate 51 of the main column part 5 may not be open on the front side of the moving direction M of the main column part 5. In other words, the recess 55 may be a recess that is open only on the lower surface 52 of the bottom plate 51 and not on the peripheral surface of the bottom plate 51, or a recess that is open on the left or right side or on the left and right sides other than the front and rear sides of the moving direction M of the main column part 5.

In the embodiment, the outer periphery of the lower surface 52 of the main column part 5 and the fixing surface 42 of the lower column end part 4 are welded together, i.e., the lower end of the main column part 52 of the steel frame structure is welded together with the upper end of the lower column end part 4, but a fixing method other than welding may be used.

In the embodiment, an example is shown in which a steel structure in which beams 6, 61 and a deck plate 62 are assembled between each of the main column parts 5, 5 is moved, but it is sufficient to move at least a steel structure in which beams 6, 61 are assembled between each of the main column parts 5, 5.

In addition, the erection distortion correction work described in the embodiment is preferably performed using the above-mentioned construction device, but the erection distortion correction work may also be performed using a fall prevention wire, etc.

In the embodiment, a rectangular column is used as the lower end 4 and main part 5 of the column (steel column) 3, but the lower end 4 and main part 5 of the column 3 may be other columns than rectangular columns, such as round columns or polygonal columns.

In the embodiment, an example is shown in which the main column parts 5, 5... are removably attached to the lower column ends 4, 4... temporarily fixed to each column foundation 10, 10... at the start point S of movement, and then the steel structure 2S is assembled, and the lower column ends 4 are fixed to the column foundation 10. However, as with the end point E of movement, the lower column ends 4, 4... may be fixed to each column foundation 10, 10... formed at the start point S of movement by final tightening, and then the steel structure 2S may be assembled in a state in which the main column parts 5, 5... are removably attached to the lower column ends 4, 4... fixed to each column foundation 10, 10...

In addition, in the embodiment, an example is shown in which the column main part 5 is moved upward (slightly lifted) using the up-down moving jack 15 to install the friction reduction plate 9 between the recess 55 in the bottom plate 51 of the column main part 5 and the smooth surface forming member 75 attached to the fixed surface 42 of the column lower end part 4, but the friction reduction plate 9 may also be attached in advance to the bottom surface 55 of the recess 55 of the column main part 5 with adhesive tape or the like.
In addition, when providing the main column part 5 on the lower column end part 4 at the starting point S of movement, the friction reduction plate 9 may be placed on the smooth surface forming member 75 attached to the fixed surface 42 of the lower column end part 4, and then the main column part 5 may be provided on the lower column end part 4, thereby installing the friction reduction plate 9 between the smooth surface forming member 75, which forms the upper surface of the lower column end part 4, and the recess 55 of the main column part 5.

In the embodiment, the movement path forming member is divided into a main rail material 70 and a pillar edge rail material 71 that are installed between the lower ends 4, 4 of the adjacent pillars along the movement direction M, but the movement path forming member may be configured as a single rail material that is installed between the lower ends 4, 4 of the adjacent pillars along the movement direction M.

In the embodiment, the construction piece 44 is attached to the lower end 4 of the column in advance, and the construction piece 54 is attached to the lower end of the main column 5 in advance, and the mounting piece 12 is attached to the lower end of the main column 5 when the pressure jack 13 is installed. However, the construction pieces 44, 54 and the mounting piece 12 can be attached at any time. In short, the construction piece 44 is attached to the lower end 4 of the column by the time it is needed, and the construction piece 54 and the mounting piece 12 are attached to the lower end of the main column 5 by the time it is needed.

In the embodiment, the mounting pieces 12 are attached next to the construction pieces 54. However, if, for example, one construction piece 44 is provided in advance at the center of each side of the lower end 4 of the column, and one construction piece 54 is provided in advance at the center of each side of the lower end of the main column 5, the construction pieces 54 can be removed and the mounting pieces 12 can be attached, or the construction pieces 54 can be used as they are as mounting pieces for the pressure jack 13.

In addition, in the embodiment, an example is shown in which column foundations 10, 10... are constructed at the start point S of movement, column lower ends 4, 4... are attached to each of the constructed column foundations 10, 10..., main column parts 5, 5... are provided on each of the lower column ends 4, 4... attached to each of the column foundations 10, 10..., and a beam 61 is assembled between each of these adjacent main column parts 5, 5 to form a steel structure that can be moved, but it is also possible not to provide the column foundations 10, 10... and the lower column ends 4, 4... at the start point S of movement.
For example, a rail material forming a movement path may be installed at the movement starting point S, and column main parts 5, 5... may be provided on a smooth surface forming member 75 attached to the upper surface of the rail material, and a beam 61 may be assembled between each of the adjacent column main parts 5, 5 to form a steel structure that is movable.
That is, the movement start point side step may be provided with a configuration required to enable each of the column main parts 5, 5... to stand on their own at the movement start point S, to construct a steel structure in which beams 61 are assembled between adjacent column main parts 5, 5..., and to enable the steel structure to be moved. In other words, the movement start point S may be provided with a configuration such as a platform and a road surface required for setting up and moving each of the column main parts 5, 5....

In addition, in the embodiment, a method for constructing a steel structure using a column (steel column) formed separately into a lower end portion and a main portion has been described, but the present invention is naturally applicable to a method for constructing a steel structure using a normal steel column not formed separately into a lower end portion and a main portion.
For example, the present invention can be applied to a construction method for a steel structure using a normal steel column (such as a steel column as described in Patent Document 2) in which the lower end of the column and the main part of the column are integrated together so that there is no separation between the lower end of the column and the main part of the column and a base plate is provided at the lower end of the column part.
In this case, the lateral movement path may be a lateral movement path formed of a flat plate or the like having a smooth surface.

Although the above embodiment shows an example in which the pressing jack (pressing means) 13 is used as the power applying means, a towing jack (towing means) may also be used as the power applying means.
Further, as the power applying means, a pushing means or a pulling means other than a jack may be used.

In the above, an example was given in which the number of front power applying means is less than the number of rear power applying means, with four rear power applying means and two front power applying means provided, but the number of means provided may be changed as appropriate depending on the configuration of the structure, etc.

In the above, a steel frame structure is given as an example of a structure, but the structures that are the subject of the present invention may be structures other than steel frame structures, such as wooden structures and other structures.

2M Steel structure (structure), 13 Press jack (power imparting means),
13F front pressure jack (front power imparting means),
13R: rear pressure jack (rear power imparting means), M: movement direction.

Claims (4)

A method for moving a structure by using a plurality of power applying means to move the structure laterally along a lateral movement path , comprising the steps of:
A plurality of rear side power applying means are provided on the rear side of the structure in the moving direction thereof to apply power to the structure,
A plurality of front side power applying means are provided on the front side of the structure in the moving direction thereof to apply power to the structure,
A pushing means or a pulling means attached to the lateral movement path is used as the rear power imparting means and the front power imparting means,
and a number of the front power applying means is less than the number of the rear power applying means. The method for moving a structure according to claim 1, characterized in that the front power applying means and the rear power applying means are driven to move the structure laterally, and when the direction of travel of the structure deviates, the drive amount of each front power applying means is adjusted to correct the direction of travel of the structure. the rear side power applying means is provided on both end sides of the structure in a width direction of the structure perpendicular to the moving direction of the structure, and one or more rear side power applying means is provided between both ends of the structure in the width direction;
3. The method for moving a structure according to claim 2, wherein the front power applying means is not provided at either end of the structure in the width direction, but two or more are provided between both ends of the structure in the width direction. The method for moving a structure according to claim 3, characterized in that two rear power applying means are provided at the center between both ends of the structure in the width direction, and two front power applying means are provided at the center between both ends of the structure in the width direction, and each rear power applying means and each front power applying means at the center are provided at positions equidistant from the positions of each end of the structure in the width direction.

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