JP6636091B2 - Slide method for ramen structures - Google Patents

Description

  The present invention relates to a slide method applied to construct a ramen structure.

  In a warehouse for storage of coal or waste, a factory building, or the like, a slide method is sometimes used as a construction method. When the girder line of these buildings is long, the slide method is used to assemble the partial frame at a specific place and send it out sequentially, so that less temporary materials are required, and it is possible even in the state where finishing materials etc. are attached, so construction efficiency is good. It has been.

  In many cases, the tension direction of the building has a ramen structure. If the ramen frame of the column base pin shown in FIG. 9 is used to describe the frame, the horizontal force of the column base generated by the weight W of the beam (to kick outward) The greater the force H), the greater the tension.

  Conventionally, when such a building is constructed by the slide method, the partial frame has sufficient horizontal rigidity and strength to support the column base horizontal force so that the partial frame is structurally stable even during sliding. It needed to have a foundation.

  Further, in addition to the rail receiving the vertical load, a horizontal force receiving rail for directly receiving the column base horizontal force and transmitting the force to the foundation is required as the slide rail.

  Further, since the column base slides while being pressed against the horizontal force receiving rail due to the column base horizontal force, a frictional resistance is generated, so that a larger traction force is required, and thus the traction equipment becomes large. There was also a problem. This problem is more pronounced as the towed subframe becomes longer and heavier.

  As described above, in the conventional slide method, in addition to the installation cost of the foundation and the horizontal force receiving rail for processing the horizontal force of the column base, it is necessary to consider the capacity enhancement and cost increase of the traction equipment.

  Further, even during sliding, the horizontal force receiving rail is always subjected to the column base horizontal force that is trying to spread outward, so that sufficient safety measures are also required.

  As a method for suppressing the column base horizontal force of the partial frame during the slide, for example, by providing a tension material horizontally connecting the column bases of both side columns in the tension direction and introducing tension, the column base is A method of hanging with a large horizontal force to open in the horizontal direction is conceivable. In this case, it is necessary to keep a tension member and a tension introducing device for connecting the two column bases on all the column bases until the completion of the slide work, so that a large amount of temporary construction cost is required in addition to the traction equipment.

  As a prior art regarding a slide method for a large-bar frame, there is, for example, Patent Document 1. Patent Literature 1 is a construction method in which rolling support devices are installed at the tops of columns that are already installed, and a roof frame is placed and slid on a moving beam spanned by the rolling support devices, In this method, the eaves beams on both sides of the roof frame are connected by tie bars to suppress the spread of the roof frame due to its own weight, thereby sliding the column capital without applying a horizontal force.

  In this method, pillars are already installed before sliding, and a roof frame is erected on it, so each pillar needs to be self-supporting in advance, and a rigid for sliding at the capital level A moving beam is also required. However, in the present invention, since a frame having a ramen structure is to be slid, a construction method based on prior installation of columns cannot be adopted.

  Therefore, the prior art disclosed in Patent Literature 1 does not solve the problem with the method of sliding the pillar and the roof frame integrally. Also, there is no description suggesting the solution.

  Conventionally, in a slide construction having a long moving distance, a traction device of a type in which a wire rope having a high degree of freedom in length adjustment is wound with a drum has been often used. With this method, even if the partial frame to be towed becomes longer and its weight becomes heavier, it is possible to tow even with a small tension by increasing the number of moving pulleys.

  However, as the number of moving pulleys increases, the winding amount of the wire rope also increases, so that not only the capacity of the drum is limited but also the traction efficiency is reduced. In other words, it is not efficient to apply a heavy frame, such as a ramen frame, which has not only the roof but also pillars (walls) and a finishing material, etc., to slide construction with a long moving distance. Therefore, it was not necessarily suitable.

JP-A-9-72004

  The present invention suppresses the generation of column base horizontal force generated by the building's own weight when the sliding method is used as a construction method of a building having a ramen structure in a span direction and a long girder line, and a temporary construction cost. The present invention also provides a ramen structure sliding method that is inexpensive.

  The present invention also provides a ramen structure that can perform towing work efficiently with a compact towing device, without requiring a particularly large capacity, even in slide construction where the towing weight is heavy and the sliding distance is long. It provides a slide method.

Means for solving the above problems of the present invention is a method of sliding a ramen structure including the following steps.
(1) In a place where the building area is open, secure a fixed distance from the slid-in portal structure as a ramen frame, and install a new portal structure with a jacking support on the roof. The process of temporarily receiving and assembling.
At this time, the joint between the column top and the roof of the new portal-type frame is connected only to either the upper chord or the lower chord at both ends of the roof girder, and the other parts are left unconnected. Keep the pins joined.

(2) a step of assembling the members that connect the slid-in portal structure and the new portal structure.
At this time, the joint portion of each member of the connection roof portion between the slid gate-type substructure and the new portal-type substructure is in a pin-joined state in which at least vertical rotation is allowed to some extent.

(3) While the both ends of the roof girder of the new portal structure are in a pin-connected state, the joining of other members is completed, and a jacking support that supports the roof of the new portal structure. The process of loosening the jack and releasing the temporary support by the roof support.
After the completion of this step, a roof finish, lighting, or the like to be installed on the roof portion of the new portal-type partial frame and the connection roof portion may be attached.

(4) A step of connecting the unconnected portions of both ends of the roof girder of the new portal-shaped substructure to the column, thereby making the eaves rigidly joined to complete the ramen frame.

Further, the present invention is a method for sliding a ramen structure described below, which partially includes the steps described above.
(1) This is the process of assembling the portal-type substructure to carry out the first slide. In the erection area, first use the gantry in the erection area to jack the first portal-type substructure, and jack its roof. The process of temporarily receiving and assembling with a support.

  At this time, the joint between the column top and the roof of the gate-shaped partial frame is connected to either the upper chord or the lower chord at both ends of the roof girder, and the other portions are left unconnected, so that both ends of the roof are not connected. A joint state in which rotation in the vertical plane of the part is allowed to some extent (hereinafter, referred to as a “pin joint state”) is set.

(2) With the both ends of the roof girders in the pin-joined state, the joining of the members of the portal-type partial frame assembled in step (1) is completed, and a jack with a jack that supports the roof is supported. Process to loosen the roof and release the temporary support by the roof support.
After the completion of this step, a roof finish, lighting, or the like to be installed on the roof may be attached to the extent possible.

(3) A step of connecting the unconnected portions of both ends of the roof girder of the gate-shaped partial frame to the pillar portion, thereby making the eaves portion rigidly joined and completing the ramen frame.
(4) A step of installing a towing device along the slide rail for towing the portal-shaped partial frame that has become the ramen frame, and connecting the towing member to the column base of the portal-shaped partial frame.
(5) A step of slidingly moving the portal-shaped partial frame, which has become a ramen frame, to a location adjacent to the building area by a required distance.

(6) In the erection area opened by the slide movement in the step (5), a fixed gap is secured with the slidable portal structure, and a new portal structure is jacked on its roof. The process of temporarily receiving and assembling with a shoring.
At this time, the joint between the column top and the roof of the new portal-type frame is connected only to either the upper chord or the lower chord at both ends of the roof girder, and the other parts are left unconnected. Keep the pins joined.

(7) A step of assembling each member that connects the portal section and the new portal section that have been slid in step (5).
At this time, the joint portion of each member of the connection roof portion between the slid gate-type substructure and the new portal-type substructure is in a pin-joined state in which at least vertical rotation is allowed to some extent.

(8) The roof portion of the new portal-type substructure assembled in step (6) While the both ends of the girder are still in the pin-joined state, the joining of the other members is completed, and the roof portion of the new portal-type substructure is removed. The process of loosening the jack of the supporter with the jack that is supporting and releasing the temporary support by the supporter on the roof.
After the completion of this step, a roof finish, lighting, or the like to be installed on the roof portion of the new portal-type partial frame and the connection roof portion may be attached.

(9) A step of connecting the unconnected portions of both ends of the roof girder of the new portal-shaped partial frame to the pillar portion, thereby making the eaves rigidly joined to complete the ramen frame.
(10) After the completion of the step (9), the joining of the frame part between the slid-in portal structure in the step (5) and the new portal structure which has become the rigid frame in the step (9) is completed. Process.

(11) A step of sliding the entire portal-shaped partial frame integrated as the ramen frame in the step (10) at least by an assembly width of a new portal-shaped partial frame to be assembled in the next step.
(12) Thereafter, the steps (6) to (11) are repeated the required number of times to complete the slide work. In addition, when the end of the roof girder of the gate-shaped partial frame is in the pin-joined state, it is extremely weak against horizontal force. Therefore, it is connected to the gantry by a temporary brace or the like for temporary reinforcement.

Further, the present invention is a slide method for a ramen structure, which is the slide method described above, wherein a traction facility as described below is used.
(1) On the upper surface of the slide rail, a sliding bearing for supporting the vertical load of the portal-shaped partial frame is placed, and a sliding material is inserted between the sliding rail and the sliding bearing.

(2) The jack is horizontally arranged along the slide rail so that the direction of expansion and contraction of the piston rod is parallel to the slide rail.
(3) A jack receiving member for fixing the jack and taking a reaction force therefrom is provided along the slide rail.

(4) A towing member for towing the portal-shaped partial frame is arranged in parallel along the slide rail, and the towing member is connected via a pin penetrating a connecting member for connecting the towing and the jack. , And can be connected to the jack at at least two places.
(5) In the axial direction of the traction member, a plurality of traction holes into which the pins are inserted are provided at regular intervals, and the pins penetrate the connection member and the traction member, and To fit freely into and out of the housing.

(6) When the traction member pulls the portal-shaped partial frame, the traction is performed in any of the following depending on the direction in which the piston rod expands and contracts.
B) When the direction in which the piston rod extends is adjusted to the sliding direction, the first pin in the sliding direction is inserted through the connecting member and the traction member at the tip of the piston rod in a state where the piston rod is contracted. The piston rod is extended by at least one pitch of the pulling hole in a state where the second pin is pulled out in the sliding direction and the sliding pin is pulled out, thereby performing one sliding movement. Upon completion of the movement, the sliding of the piston rod is automatically locked.

Next, the second pin is inserted through the connecting member of the jack leg and the traction member, and the first pin is withdrawn, the lock is automatically released, and the piston rod is retracted. To return to the original state and complete one basic cycle.
B) In the case where the direction in which the piston rod extends is used in the reverse of the above-mentioned a), the second pin in the sliding direction rear penetrates the connecting member at the tip of the piston rod and the traction member with the piston rod extended. The piston rod is contracted by at least one pitch of the pulling hole in the state where the first pin is inserted and the first pin at the front in the sliding direction is removed, and one sliding movement is performed. Upon completion of the movement, the sliding of the piston rod is automatically locked.

Next, the first pin is inserted through the connecting member of the jack leg and the traction member, and the second pin is withdrawn, the lock is automatically released, and the piston rod is extended. To return to the original state and complete one basic cycle.
(7) Thereafter, the same cycle is repeated until the towable length limit of the tow member is reached.
(8) When the towable length of the towing member reaches the limit, the position of the jack receiving member can be pulled forward in the sliding direction with the first pin and the second pin removed. After moving within the range of the length, the jack and the connecting member are reset.

(9) The above steps are repeated until the required slide movement distance is reached.
(10) After the sliding work is completed, the lower end of the column member of the portal-shaped partial frame is fixed to the foundation with anchor bolts.

The present invention, in contrast to the slide method for a ramen structure as described above, incorporates a step of jacking down before completing the ramen frame when constructing a portal-shaped partial frame, which is a step opposite to the conventional procedure. As a result, the following effects can be obtained.
In the case of adopting the slide method as the construction method of the building where the tension direction is a ramen structure and the girder line is long,

(1) The horizontal force of the column base generated by the weight of the roof of the gate-shaped partial frame can be greatly reduced.
(2) Since the horizontal force of the column base during sliding is greatly reduced, the cost of the foundation receiving the horizontal force is reduced.
(3) In the contact portion between the horizontal force receiving rail and the column base, the problem of the frictional resistance generated during the sliding movement is eliminated, so that a large traction force unlike the conventional case is not required, and it is not necessary to increase the capacity of the traction equipment. Therefore, the cost can be suppressed. The effect is greater as the length of the sliding portal frame is longer.

(4) The horizontal force acting on the column pedestal portion, which is constantly acting even during sliding, is greatly reduced, so that the safety is enhanced.
(5) From the above (3), the traction equipment as described above (the second embodiment) can be used, so that the sliding work is more efficient than the conventional construction method, and because it is compact, it can be transported or slid. It is easy to handle in refilling inside.

It is an example of a rough arrangement | positioning of the temporary material at the time of slide construction of the building construction site in this invention. It is a figure in the 1st Example of this invention which shows the construction procedure of a portal part frame until the first slide execution, (a) is a plan view of the first portal part frame, (b) is a gate for the first slide. FIG. 4C is a cross-sectional view taken along the line II in FIG. 4B, and FIG. 4D is a cross-sectional view taken along the line II after jack-down. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing of the portal-type partial frame in 1st Example of this invention, (a) is a figure before the jack down, and (b) is a figure explaining the state where both ends of the roof girder were rigidly joined after the jack down. is there. In the case of FIG. 2A or FIG. 2B, this corresponds to a roll cross-sectional view. In the first embodiment of the present invention, it is a figure showing the installation situation of the traction device for the first slide, (a) is a plan view, (b) is a cross-sectional view of (a). In the first embodiment of the present invention, it is a diagram showing a state in the middle of the construction of the portal-shaped partial frame for the second slide, (a) is a plan view, (b) is a cross-sectional view of the line (a) of (a) It is. In the first embodiment of the present invention, it is a diagram showing the installation state of the traction device for the second slide, (a) is a plan view, (b) is a cross-sectional view of Hoho (a). FIG. 5 is an explanatory view showing how a slide rail and a column base (including a slide bearing) are accommodated. It is explanatory drawing which shows operation | movement of the traction apparatus used in 2nd Example of this invention, (a) is an initial state, (b) is a state where a piston rod is extended, (c) is an initial state which contracts a piston rod. FIG. It is a diagram illustrating the distribution of bending occurring portal noodles Frames by the weight W of the beam portion moment (M _1, M _2). By the weight W of the beam portion is a diagram showing the distribution of the bending occurs in portal Frames beam across pins moment (M _0).

  The first embodiment of the present invention is a method for constructing a building roof such as a store including the following steps. An example of a building having a uniform height over the entire length will be described with reference to FIGS. In the construction site 1 (Fig. 1), including the construction area S of the gate-shaped partial frame 4, and on which the slide rails 3 and 3 are laid to the position required for sliding movement,

(1) This is a process of assembling a portal-type partial frame for performing the first slide. First, the first frame composed of two rows of parallel flat frames using the gantry 2 temporarily provided in the construction area S is used. The gate-shaped partial frame 4A is assembled by temporarily supporting the roof part R with supporters 5, 5, ... with jacks. (FIGS. 2a and 3a)

At this time, as shown in FIG. 3a, the connection between the top of the pillar C and the roof R is made by disabling the members at both ends of the lower chord of the roof R truss, and connecting the members at both ends of the roof R with the truss plane. A pin connection state in which rotation is allowed to some extent is set in advance.
Next, the gate-shaped substructures 4B and 4C adjacent to the portal-shaped substructure 4A are temporarily assembled with the roof portions R at jacking supports 5, 5,... On the gantry and assembled and connected. (FIG. 2b, FIG. 2c, FIG. 3a)

  In this step, the block connected adjacent to the portal section 4A is connected to the portal section 4B and then to the portal section 4C, as shown in FIGS. 2b and 2c. If the length of the girder line is increased and the scale of the portal-type partial frame 4 to be pulled at one time is increased, the number of slides is reduced, and there is an advantage that the construction efficiency is improved.

(2) When the process (1) is completed, the bolts at the joints of the members of the portal-type substructure 4 are fully tightened while all the members at the lower chords of the roof R truss truss are left unconnected, and the roof R is removed. Loosen the jacks of the supporting shoring 5, 5, ... that support the jack, and complete the jack down. (Fig. 2d)

At this time, since both ends of the roof truss truss of the portal section frame 4 are pin-joined, the roof section R of the portal section frame 4 bends due to its own weight, but the joint section with the column section C (eave section) ) Does not generate a bending moment, so that there is no force to expand the leg of the column C outward.
After the jack-down is completed, objects to be installed on the roof R, such as a roof finish r and lighting, may be attached to the extent possible.

(3) The members at both ends of the lower chord of the roof R truss, which had not been connected to the gate-shaped substructure 4 (the positions indicated by the arrows in FIG. 3B), are connected to the column C, so that the eaves are rigidly connected to each other. Complete as a frame. (Fig. 3b)
(4) The towing devices 6, 6 for towing the portal-shaped partial frame 4 which has become the ramen frame in the step (3) are installed above the slide rails 3, 3, and the towing members T, T and the portal-shaped partial frame 4A are provided. And the front of the leg of column C. (FIG. 4)

(5) The gate-shaped substructure 4 after the completion of the step (3) is moved by a required distance (in FIG. 5, the assembly width of the gate-shaped substructures 4D and 4E) to a location adjacent to the erection area S (broken line in FIG. 4). Slide in the direction of the arrow).
(6) In the erecting area S opened by the slide movement in the step (5), a new gate-shaped substructure 4E is preceded by a predetermined distance (for one pillar) from the gate-shaped substructure 4C. The roof part R is temporarily received at jacking supports 5, 5, ... and assembled. (Fig. 5)
(7) Assemble the portal-type partial frame 4D by connecting the members that connect the portal-type partial frame 4C and the portal-type partial frame 4E. (Fig. 5)

  At this time, since the height of the roof R of the gate-shaped substructure 4E is higher than the height of the roof R of the gate-shaped substructure 4C, the gate-shaped portion connecting the gate-shaped substructure 4C and the gate-shaped substructure 4E is connected. The bolts at the joints of the members of the roof R of the frame 4D are not fully tightened, and are in a pin joined state in which at least vertical rotation is allowed to some extent.

(8) Roof part of portal-type substructure 4E The joints of each part of the column part C of the portal-type substructure 4E and the column-type substructure 4D, with the members at both ends of the lower chord of the girder truss unconnected. , And loosen the jacks of the supporters 5, 5, ... that support the roof R, and complete the jack down. (FIG. 6)

  At this time, since both ends of the roof truss truss of the gate-shaped substructure 4E are pin-joined, the roof R of the portal-shaped substructure 4E bends due to its own weight. ) Does not generate a bending moment, so that there is no force to expand the leg of the column C outward.

  Also, after the jack-down is completed, if the roof finish r and other equipment such as lighting, and the objects to be installed on the roof portion R of the gate-shaped substructures 4E and 4D are attached, after the installation is completed, the portal-shaped substructures 4D and 4E The height of the roof R of is approximately the same as the height of the roof R of the gate-shaped substructures 4A to 4D. (FIG. 6)

(9) After the step (8) is completed, the unconnected members (at the positions indicated by the arrows in FIG. 3B) at both ends of the lower chord of the roof R truss of the gate-shaped substructure 4E are connected to the column C, whereby The eaves of the mold part frame 4E are rigidly joined to complete the ramen frame. (FIG. 6)
(10) After the step (9) is completed, the bolts at the joint of the roof portion R of the gate-shaped partial frame 4D are fully tightened.

The final tightening of the roof R of the gate-shaped substructure 4D after the completion of step (9) eliminates the gap between the height of the roof R of the adjacent gate-shaped substructure 4C (deflection due to the weight of the roof). This is because it must be done. (FIG. 6)
(11) The integrated gate-shaped substructures 4A to 4E are slid by the assembly width of the portal-shaped substructure 4 to be assembled in the next step (in the direction of the dashed arrow in FIG. 6). (FIG. 6)

At this time, if the distance between the traction devices 6, 6 and the front surface of the leg portion of the column C of the first portal frame 4A is less than the distance required for sliding, as shown in FIG. Then, the slide is moved to the front. (FIG. 6)
(12) Thereafter, steps (6) to (11) are repeated the required number of times to complete the slide work.

  As described above, in the first embodiment, the connection between the top of the column C of the portal-shaped substructure 4 and the end of the roof R truss truss remains in a pin-connected state, and the jacked supports 5, 5,... Shown in FIG. , And in that state, attach the roof finishing equipment, lighting and other equipment to the roof. At this time, since the portal-type partial frame 4 is not completed as a ramen structure, the column base horizontal force (corresponding to H in FIG. 9B) does not occur in the ramen frame due to the roof R's own weight.

However, if the gate-Frames beam across the pin junction (10), the maximum bending moment M ₀ of the beam portion in the case of noodles Frame (FIG. 9) become large than _{(M 0> M 1, M} 2), Attention must be paid to the fact that the deflection of the beam portion also increases.

  Therefore, in the state where the deflection due to the own weight of the roof R occurs, the members at both ends of the lower chord of the roof R truss (the positions indicated by the arrows in FIG. If the eaves are rigidly connected and completed as a ramen frame, only the vertical force due to the own weight (frame and finishing material, etc.) of the gate-shaped partial frame 4 will act on the slide rails 3 and 3; The problem caused by the horizontal force of the column base at the time, that is, the ability of the traction device to cope with the frictional resistance and the reinforcement of the foundation F supporting the slide rails 3 and 3 become unnecessary.

  In addition, when the roof truss truss end of the gate-shaped partial frame 4 is in the pin-joined state, it is extremely weak against horizontal force, so it is connected to the gantry 2 by a temporary brace or the like for temporary reinforcement. .

  In the second embodiment, the sliding method of the first embodiment is a sliding method of a ramen structure using a traction facility as described below in order to slide and move the portal-shaped partial frame 4 completed as a ramen structure. is there. This will be described with reference to FIGS.

(1) As shown in FIG. 7, the slide rail 3 is made of, for example, a steel frame having an H-shaped cross section and is filled with mortar or the like to secure load resistance. A slide bearing 8 for supporting the vertical load from C is placed, and a sliding member (not shown) is inserted between the slide rail 3 and the slide bearing 8. Since the steel frame having the H-shaped cross section is used flat, the two upwardly directed flanges serve as a guide for the slide bearing 8 during sliding.

(2) Hereinafter, description will be made with reference to FIG. On both sides of the slide rail 3, the cylinder jacks 11, 11 are horizontally arranged one by one so that the expansion and contraction directions of the piston rods 12, 12 are parallel to the slide rail 3.
(3) In order to fix the cylinder jacks 11 and take a reaction force therefrom, jack receiving members 10 and 10 are provided on both sides of the slide rail 3.

(4) The cylinder jacks 11, 11 on both sides of the slide rail 3 have legs connected to each other by a connecting member 13, and their piston rods 12, 12 tips connected to each other by a connecting member 14. Further, the cylinder jacks 11, 11 In the meantime, a towing member T for towing the portal-shaped substructure 4 is arranged in parallel on the upper part of the slide rail 3, and this towing member T connects the connecting member 13 or 14 (only the connecting member 14 in FIG. 8). It is connected to the cylinder jacks 11 and 11 at two places via the penetrating pins 15.

(5) In the axial direction of the traction member T, traction holes 16, 16... Into which the pins 15 are inserted are provided at regular intervals, and the pins 15 connect the connection member 13 or 14 and the traction member T. It penetrates and can be freely inserted and removed.
(6) The expansion and contraction of the piston rod 12 is performed hydraulically or mechanically, and when the traction member T pulls the portal-shaped partial frame 4, it is performed in any of the following ways.

  B) When the direction in which the piston rods 12, 12 extend is matched with the sliding direction, the pin 15 (referred to as a first pin) in the sliding direction is connected to the connecting member 14 and the traction member T while the piston rods 12, 12 are contracted. The piston rods 12, 12 are extended by at least one pitch of the traction hole 16 in a state where the pin 15 (referred to as a second pin) at the rear in the sliding direction is removed (FIG. 8A). One slide movement is performed (in the direction of the arrow 8b) (FIG. 8b). Upon completion of the movement, the sliding of the piston rods 12, 12 is automatically locked.

Next, a second pin is inserted through the connecting member 13 and the traction member T, and the first pin is withdrawn, the lock is automatically released, and the piston rods 12, 12 are contracted (FIG. 8c). (In the direction of the arrow in FIG. 3) The state is returned to the original state, and one basic cycle is completed. (Fig. 8c)
B) In the case where the direction in which the piston rods 12, 12 extend is used in the reverse of the above-mentioned a) (not shown), in the state where the piston rods 12, 12 are extended, the second pin behind the sliding direction is connected to the connecting member 14 The piston rods 12 and 12 are contracted by at least one pitch of the traction hole 16 in a state where the first pin is inserted through the traction member T and the traction member T and the front pin in the sliding direction is removed, and the slide movement is performed once. Execute Upon completion of the movement, the sliding of the piston rods 12, 12 is automatically locked.

Next, the first pin is inserted through the connecting member 13 and the traction member T, and the second pin is removed, the lock is automatically released, the piston rod is extended, and the piston rod is returned to the original state and returned for one time. Ends the basic cycle of.
(7) Thereafter, the same cycle is repeated until the towable length limit of the towing member T is reached.

(8) When the towable length of the towing member T reaches the limit, the position of the jack receiving members 10, 10 can be pulled forward in the sliding direction with the first pin and the second pin removed. Move within the length range, and reset the cylinder jacks 11, 11 and the connecting members 13, 14.
(9) The above steps are repeated until the required slide movement distance is reached.

(10) After the slide work is completed, the lower ends 7a, 7a (see FIG. 7) of the pillars 7, 7 are fixed to the foundation with anchor bolts. The sliding bearing portion 8 may be removed, but for this purpose, it is necessary to jack up the gate-shaped partial frame 4, so that it may be left together with the slide rail 3 if there is no problem.

  As described above, the second embodiment utilizes the tow holes 16, 16,... Provided at the tow member T, and alternately inserts and removes the first pin and the second pin while alternately repeating the gate-shaped partial frame. Therefore, either the first pin or the second pin is inserted through the connecting member 13 or 14 and the traction member T, except when the traction device 6 is changed. At this time, the sliding of the piston rod is automatically locked, so that the portal-type partial frame 4 during the sliding operation is prevented from inadvertently sliding on the slide rail due to the seismic force during the construction.

  The towing capacity is determined only by the jack, and there is no reduction in towing efficiency as in the conventional wire rope winding method described, so that towing work can be performed efficiently even in slide construction where the towing weight is heavy and the sliding distance is long. .

  Further, the conventional wire rope winding method described above is composed of a long wire rope, a winding drum, and a plurality of moving pulleys. In comparison, the traction device of the present invention is compact and easy to handle.

  The present invention, when the sliding method is adopted as a construction method of a building in which the span direction is a ramen structure and the girder row is long, the horizontal force that tries to kick out to the outside generated on the column base during sliding is greatly reduced. It can reduce foundation work costs and improve safety, and can also contribute to improving construction efficiency.

1: Building construction site
2: Gantry
3: Slide rail
4, 4A, 4B, 4C, 4D, 4E: Portal-type partial frame
5: Shoring with jack
6: Traction device
7: pillar material
7a: Lower end
8: Sliding bearing
10: Jack receiving material
11: Cylinder jack
12: Piston rod
13, 14: Connecting member
15: Pin
16: Towing hole
C: Pillar
F: Basic
H: Force to kick outward (-H indicates reaction force)
R: Roof
r: Roof finish
T: Traction member
S: Tatekata area
W: Weight of beam

Claims (3)

A sliding method for a ramen structure, comprising the following steps.
(1) In a place where the erection area is open, a fixed gap is secured with the slidable portal-type substructure, and a new portal-type substructure is assembled by temporarily supporting the roof of the new portal-type substructure. Process.
At this time, the joint between the column top and the roof of the new portal-type frame is connected only to either the upper chord or the lower chord at both ends of the roof girder, and the other parts are left unconnected. Keep the pins joined.
(2) a step of assembling the members that connect the slid-in portal structure and the new portal structure.
At this time, the joint portion of each member of the connecting roof portion between the slid gate-shaped substructure and the new portal-shaped substructure is in a pin-joined state in which at least vertical rotation is allowed.
(3) The joining of all the other members is completed while the both ends of the roof girder of the new gate-shaped substructure are in the pin-joined state, and the temporary support by the support of the roof of the new portal-shaped substructure is released. Process.
(4) A step of connecting the unconnected portions of both ends of the roof girder of the new portal-shaped substructure to the column, thereby making the eaves rigidly joined to complete the ramen frame. A sliding method for a ramen structure, comprising the following steps.
(1) This is a process of assembling a gate-shaped partial frame for performing the first slide. In the erecting area, first, the first gate-shaped partial frame is temporarily received at a roof portion thereof and assembled.
At this time, the joint between the top of the column and the roof of the gate-shaped partial frame is in a pin joint state in which rotation in a vertical plane at both ends of the roof is allowed.
(2) A step of completing the joining of the members of the portal-type partial frame assembled in step (1) while leaving both ends of the roof part in the pin-joined state, and releasing the temporary support by supporting the roof part.
(3) A step of connecting the unconnected portions at both ends of the roof portion of the gate-shaped partial frame to the pillar portion so that the eaves portion is rigidly joined to complete the ramen frame.
(4) A step of installing a traction device and connecting the traction member to a column base of the portal-shaped partial frame.
(5) a step of sliding the portal-shaped partial frame, which has become a ramen frame, to a location adjacent to the building area;
(6) In the erection area opened by the slide movement in the step (5), a fixed gap is secured between the slidable portal structure and the new portal structure, and the roof of the new portal structure is supported. The process of temporarily receiving and assembling.
At this time, the joint between the top of the column and the roof of the new portal-shaped substructure is in a pin joint state in which rotation in the vertical plane at both ends of the roof is allowed.
(7) A step of assembling each member that connects the portal-shaped partial frame that has been slid in the step (5) and the new portal-shaped partial frame.
At this time, the joint portion of each member of the connection roof portion between the slid gate-shaped substructure and the new portal-type substructure is in a pin-joined state in which at least vertical rotation is allowed.
(8) A step of releasing the temporary support by the shoring of the roof portion of the new portal-type substructure while the both ends of the roof portion of the new portal-type substructure after completion of the process (6) are in the pin-joined state.
(9) A step of connecting the unconnected portions at both ends of the roof portion of the new gate-shaped partial frame to the pillar portion, thereby making the eaves portion rigidly joined to complete the ramen frame.
(10) After the step (9) is completed, the joining of the frame portion between the slid-in portal structure that has been slid in the step (5) and the new portal structure that has become the ramen frame in the step (9) is completed. Process to make it.
(11) A step of sliding the whole portal-shaped partial frame integrated as the ramen frame in the step (10).
(12) Thereafter, steps (6) to (11) are repeated the required number of times. The slide method according to claim 1, wherein a traction facility as described below is used.
(1) On the upper surface of the slide rail, a sliding bearing for supporting the vertical load of the portal-shaped partial frame is mounted.
(2) The jack is horizontally arranged along the slide rail so that the direction of expansion and contraction of the piston rod is parallel to the slide rail.
(3) A jack receiving member for fixing the jack and taking a reaction force therefrom is provided along the slide rail.
(4) A towing member for towing the portal-shaped partial frame is arranged in parallel along the slide rail, and the towing member is connected via a pin penetrating a connecting member for connecting the towing and the jack. , And can be connected to the jack at at least two places.
(5) In the axial direction of the traction member, a plurality of traction holes into which the pins are inserted are provided at regular intervals, and the pins penetrate the connection member and the traction member, and To fit freely into and out of the housing.
(6) When the traction member pulls the portal-shaped partial frame, the traction is performed in any of the following depending on the direction in which the piston rod expands and contracts.
B) When the direction in which the piston rod extends is adjusted to the sliding direction, the first pin in the sliding direction is inserted through the connecting member and the traction member at the tip of the piston rod in a state where the piston rod is contracted. The piston rod is extended by at least one pitch of the pulling hole in a state where the second pin is pulled out in the sliding direction and the sliding pin is pulled out, thereby performing one sliding movement. Upon completion of the movement, the sliding of the piston rod is automatically locked.
Next, the second pin is inserted through the connecting member of the jack leg and the traction member, and the first pin is withdrawn, the lock is automatically released, and the piston rod is retracted. To return to the original state and complete one basic cycle.
B) In the case where the direction in which the piston rod extends is used in the reverse of the above-mentioned a), the second pin in the sliding direction rear penetrates the connecting member at the tip of the piston rod and the traction member with the piston rod extended. The piston rod is contracted by at least one pitch of the pulling hole in the state where the first pin is inserted and the first pin at the front in the sliding direction is removed, and one sliding movement is performed. Upon completion of the movement, the sliding of the piston rod is automatically locked.
Next, the first pin is inserted through the connecting member of the jack leg and the traction member, and the second pin is withdrawn, the lock is automatically released, and the piston rod is extended. To return to the original state and complete one basic cycle.
(7) Thereafter, the same cycle is repeated until the towable length limit of the tow member is reached.
(8) When the towable length of the towing member reaches the limit, the position of the jack receiving member is moved forward in the sliding direction in a state where the first pin and the second pin are removed, and the jack and the jack are connected to each other. The connection member is reset.
(9) The above steps are repeated until the required slide movement distance is reached.