JP3856797B2 - Steel frame panel unit and floor frame construction method using steel frame panel unit - Google Patents

Description

  The present invention belongs to the technical field of a steel frame panel unit and a floor frame construction method using the steel frame panel unit, and more specifically, a steel frame suitable for simple construction such as a roof of a one-story building or a low-rise building. The present invention relates to a steel panel unit and a floor frame construction method using the steel frame panel unit.

For example, if you want to increase the degree of freedom in designing openings by simplifying the roof of a one-story building or low-rise building as much as possible and eliminating the need for reinforcement between columns by braces, as shown in FIG. A plurality of reinforced concrete columns 1 (or steel reinforced concrete columns, hereinafter simply referred to as concrete columns) supported in a cantilever form with the lower ends fixed to the beams 13 are constructed. It is conceivable to construct a roof or a floor structure by installing a steel beam 12 (or a steel panel unit) and joining it to a column. Code 1 4 in Figure 1 illustrates a foundation pile which supports the foundation concrete beams 1 3.
However, at the present situation, rack construction method to the stigma of concrete Concrete Columns 1, bridged the steel beam 1 2 in a simple to build a roof and Yukakumi is not specifically Observations.

For example, the connection structure of the column beam disclosed in the following Patent Document 1 is a configuration in which a steel reinforced concrete column and a steel beam are connected. An H-shaped steel is used as the steel frame of the column, and a so-called bracket is bonded to the beam connecting position of the H-shaped steel for the column. After the concrete is cast to complete the SRC pillar, a steel beam is connected to the bracket protruding from the pillar.
The joint structure of the concrete column and the steel beam disclosed in Patent Document 2 has a configuration in which a through hole through which the steel beam is passed is provided at the beam position of the concrete column, and the steel beam is passed through the through hole.

Next, Patent Document 3 discloses a ladder in which a plurality of small beams are installed at a predetermined interval between two parallel steel beams as a floor frame suitable for a unit house. A shaped floor frame is disclosed.
Patent Document 4 discloses a beam frame in which a small beam of H-shaped steel is arranged at right angles to a large beam of H-shaped steel and is joined with a joint fitting as a beam frame of a house flooring structure or a roof structure. ing.
Patent Document 5 discloses a floor structure of a semiconductor or liquid crystal manufacturing factory, in which a plurality of small beams are arranged in one direction in a plane surrounded by large beams, and these large beams and small beams or small beams are arranged. There is disclosed a configuration in which a small beam for controlling vibration and one or more floor panels are arranged in a space surrounded by each other.

Japanese Patent Laid-Open No. 10-299170 JP 2002-276032 A JP-A-8-155648 JP-A-10-131371 JP 2001-11999 A

  The joint structure of the concrete column and the steel beam disclosed in Patent Documents 1 and 2 described above is such that a steel bracket for steel beam connection is protruded from the concrete column or a hole for beam penetration is provided. It is a condition that a special work or manufacturing method is carried out, which is troublesome, has poor workability, and is expensive. Therefore, there is a problem in terms of workability and construction cost in order to apply to simple construction such as a roof of a one-story building or a low-rise building.

  The steel beam and its frame method disclosed in Patent Documents 3 to 4 above are all specially devised according to the purpose, and the rooftop of a one-story building or low-rise building is as simple and inexpensive as possible. It cannot be said that this technology is useful for realizing a simple structure.

  By the way, as a past panel unit that realizes a roof structure of a one-story building or a low-rise building with a universal structure as easily and inexpensively as possible, for example, as illustrated in FIG. 6, a large beam A2 in the X and Y2 directions is used. , A1 and a panel unit having a plurality of small beams a arranged in parallel with one large beam A2, or the large beams A2 and A1 in the X and Y2 directions as illustrated in FIG. A panel unit composed of one small beam a1 arranged in parallel and the grandchild beams a2 arranged perpendicular to the small beam a1 is generally used. Symbol B in the figure indicates a pillar.

In the case of the configuration of the panel unit shown in FIG. 6, the load on the floor is applied only to one large beam A1 through the small beam a and hardly applied to the other large beam A2. I can't. Accordingly, there arises a problem that the large beams A1 and A2 are made to be different from each other according to the magnitude of the stress.
In the configuration of the panel unit shown in FIG. 7, the load on the floor is applied to each of the large beams A1 and A2 via the small beam a1 and the grandchild beam a2. However, it is difficult to adjust the magnitude and distribution of the stress generated in each of the large beams A1 and A2 by shifting the positions of the small beam a1 and the grandchild beam a2.

  The floor assembly shown in FIG. 8 is constructed by changing the direction of the panel unit at a right angle for each span of the pillars B with the configuration of the panel unit shown in FIG. Therefore, compared with the configuration of the panel unit shown in FIG. 6, since the small beams a ... are configured to transmit the load on the floor to the large beams A1, A2 in the X and Y2 directions, the stress distribution is averaged. It is possible. However, it is still difficult to adjust the magnitude of the stress generated in the large beam A1 or A2 by changing the position of the small beam a.

  An object of the present invention is to provide a steel structure panel unit that is as simple as possible, inexpensive, and has a universal structure. Further, the steel structure panel unit is installed on a stigma to easily and quickly lay a floor. It is to provide a floor frame construction method in which a joining plate is installed on the top end surface of a concrete column, and a steel beam of a steel frame unit unit is directly mounted on and joined to the joining plate.

The next object of the present invention is to easily adjust the magnitude and distribution of the stress acting on the steel large beam by adjusting the position of the small beam, and to equalize and minimize the stress of the large beam. Therefore, it is an object of the present invention to provide a steel panel unit that can be economically designed and reduced in cost by equalizing the size of the steel beam.
A further object of the present invention is to efficiently assemble a steel panel unit on the ground, and has high structural stability when suspending this steel panel unit to be installed on the stigma. Offering a frame construction method using a steel panel unit that has few constructions, is excellent in workability and safety, and can easily arrange the layout of, for example, shutters properly in layout design or changes in large-scale stores. It is to be.

As a means for solving the above-described problems of the prior art, a steel frame panel unit according to the invention described in claim 1 is:
And two steel girder which the X · Y2 direction are arranged in an L-shaped (5, 6), arranged in parallel spaced apart (L) between the direction of steel girders (6), the other direction multiple right angle and one of steel joists joined to steel girder (5) (7), and to between the steel joists (7) and parallel thereto a first direction of steel girders (6) consists out with extending parallel to opening the Honma septum was steel Magohari (8 ...), it said L-shaped arrangement of the steel girder (5, 6), in plan view, aligned in the longitudinal and lateral directions column (1...) It is characterized in that it is installed across the board in a common direction .

The floor frame construction method using the steel panel unit according to the invention described in claim 2 is:
And two steel girder disposed in L-shaped in X · Y2 direction (5,6), arranged parallel to and in the other direction steel at an interval (L) between the direction of steel girders (6) girder (5) one and steel joists (7) joined to, and the steel joists (7) perpendicular to the plurality Honma septum to between parallel the direction of steel girders (6) to A steel-made panel unit composed of steel grandchild beams (8 ...) laid in parallel with the opening opened, and the L-shaped arrangement on the columns (1 ...) aligned in the vertical and horizontal directions when viewed in plan The steel large beams (5, 6) are arranged so as to extend in a common direction and are installed.

The invention described in claim 3 is the floor frame construction method using the steel frame panel unit described in claim 2 ,
The column (1) is a steel reinforced concrete column or a reinforced concrete column, and is provided with a joining plate (10) leveled and structurally integrated on the top end surface of the column (1). hung placing the ends of the X · Y2 direction L-shaped arrangement of the steel girders is (5,6) on (10) of the joint plate of the column (1), welding the contact portion between the joining plate (10) It joins by means, such as.

The invention described in claim 4 is the floor frame construction method using the steel frame panel unit described in claim 2 ,
The steel beams (5, 6) arranged in an L shape in the X and Y2 directions constituting the steel-framed panel unit are characterized by being equal.

The steel frame panel unit according to the first aspect of the present invention transmits a load on the floor to the steel large beams 5 and 6 in the X and Y directions through the small beams 7 and the grandchild beams 8. 7 (that is, the length L of the grandchild beam 8) and the number of the grandchild beams 8, the magnitude of the load applied to each steel beam 5 and 6, and consequently the stress generated in each steel beam 5,6. It is possible to easily adjust the size and distribution. Therefore, the size of each steel beam 5 and 6 can be designed to be equal. As a result, there is no step at the bottom of the floor assembly or roof surrounded by the steel beams 5 and 6, and it is easy to install on the pillar 1, and the workability is improved.
Moreover, since the steel frame panel unit of the present invention is assembled with the steel large beams 5, 6 and the small beams 7 and the grandchild beams 8, the assembling work on the ground part is easy, and a stable and accurate panel structure. It can be. As a result, the suspension on the pillar 1 can be easily performed with high stability at four suspension points (I, B, C, D). Of course, the joining work on the pillar 1 is also only performed at the four locations (I, B, C, D), which is efficient and excellent in workability.

The floor frame construction method using the steel panel unit according to the invention described in claims 2 to 4 is such that the ends of the steel beams 5 and 6 in the X and Y directions in the steel panel unit are the upper part of the column 1 (capital). Since it is installed on the ground, suspension work from the ground can be steadily proceeded according to the procedure, and it is excellent in workability and workability.
In particular, as in the invention described in claim 3 , the joint plate 10 is integrally provided on the top end surface of the concrete pillar 1, and the steel panel unit is the end of the steel beams 5 and 6 in the X and Y2 directions. When the portion is mounted on the joining plate 10 of each pillar 1 and the contact portion with the joining plate 10 is joined by, for example, welding, bolting or other means, the steel beams 5 and 6 are holes other than cutting. There is no need for opening or other special processing, and the frame work can be carried out efficiently and inexpensively. Therefore, for example, construction of a rooftop part of a one-story building or a low-rise building can be easily performed at a low cost in a short construction period.

As in the second aspect of the invention, when each steel panel unit is installed in such a manner that the large steel beams 5 and 6 in the X and Y2 directions are in the common direction, the shaft assembly viewed in plan is the small beam 7. Are arranged in a straight line in a common direction, and the space 9 between the small beam 7 and the adjacent steel large beam 6 is arranged in a straight line as shown in FIG. If it is used for installation of a shutter for the use, it is easy to properly arrange the shutter 11 continuously in layout design or a change in a large-scale store or the like.

And X · Y2 direction are arranged in an L-shaped the two steel girders 5,6, wherein in parallel spaced L between the one-way steel girders 6, joined to the other direction of the steel girder 5 and one of steel joists 7 which is, and the steel joists 7 to this right angle to between the one-way steel girder 6 parallel to bridged in parallel by opening the plurality Honma septum was steel Magohari 8 … And a steel-framed panel unit. And each edge part of the two steel-frame large beams 5 and 6 arrange | positioned in the X-Y2 direction in the said steel-framed panel unit over the column 1 ... is installed, respectively.

FIG. 2 is a plan view showing a steel frame panel unit according to the first aspect of the present invention.
The steel frame panel units, load distribution or stress to the steel girders 5,6 between two steel girder 5,6 disposed L-shaped in X · Y2 direction, the girders 6 of the one direction One steel beam 7 arranged in parallel with an interval L for optimizing the distribution and joined to the steel beam (5) in the other direction , and the steel beam 7 and the one direction parallel thereto It consists of orthogonally plurality each steel was extending parallel to and spaced to optimize the load distribution or the stress distribution between Magohari 8 ... city between the steel girders 6, steel of the L-shaped arrangement As shown in FIG. 3, the large beams (5, 6) are installed across the pillars (1...) Aligned in the vertical and horizontal directions in a common direction, as viewed in plan. ing.
That is, the design of the size of the space L between the steel beam 7 and the steel beam 6 in one direction parallel to the steel beam 7 and the steel frame erected at a right angle between the same steel beam 7 and the beam 6 parallel to the same Depending on the design of the distance and the number of the grandchild beams 8, it is possible to optimize the load distribution or stress distribution to each steel beam 5, 6 to equalize or adjust the stress. As a result, it is possible to equalize the size of the steel beams 5 and 6 having the L-shaped arrangement in the X and Y2 directions. If it does so, it can be made into a panel without a level | step difference in a bottom face, and it is also possible to aim at reduction of the processing man-hours and kind of steel frame beams 5 and 6. FIG.
In addition, the steel panel unit is assembled in a planar shape with two steel beams 5 and 6, one steel beam 7 and three grandchild beams (three in the illustrated example) 8. Assembling work can be easily and reliably performed, and a stable and accurate panel structure can be obtained. In addition, the suspension on the pillar 1 can be easily performed with high stability at the four suspension points indicated as i, b, c, and d. Of course, the joining work on the pillar 1 is also only performed at the four locations (I, B, C, D), which is efficient and excellent in workability.

The characteristics of the structure of the steel frame panel unit described above are recognized in the following points.
Carrying out the floor set rack construction method according to the invention described in claim 2, and two steel girder 5,6 arranged in an L-shaped to X · Y2 direction as described above, and the one direction of the steel girder 6 One steel beam 7 which is arranged in parallel with a gap L between them and joined to the steel beam 5 in the other direction , and the steel beam 7 and the steel beam 6 in one direction parallel to the steel beam 7 the steel frame of the panel unit configured with erection was steel Magohari 8 ... capital in parallel by opening the plurality Honma septum perpendicular to between, as shown in FIG. 3, in plan view, longitudinal and transverse direction can pillars 1 ... steel girder 5,6 of the L-shaped arrangement on aligned to erection in an arrangement facing Common direction (the second aspect of the invention).

According to the above-mentioned floor frame construction method, each steel frame panel unit is arranged in an orderly manner in a common direction, so that the frame work can be proceeded with good procedures without hesitation and the workability is good. Not only the small steel beam 7 and the large steel beam 6 adjacent in parallel to the left side in FIG. 3 are always formed in a uniform space 9 over the entire span of the large steel beams 5 and 5 parallel to the X direction. The Moreover, the space 9 is formed in a continuous arrangement in the Y direction for each unit of the steel frame panel unit when the flooring is viewed in plan (FIG. 3).
Therefore, when the fire shutter 11 is installed in the space 9, it can be installed in a free space free from any obstacles by using all the spans of the steel beams 5 and 5 parallel to the X direction. FIG. 3 shows a case where the shutter 11 is installed in all four spaces 9 for convenience, but this is not restrictive. In layout design of a large-scale store or the like or subsequent layout change, the arrangement of the fire shutter 11 can be freely changed in the X direction.

Next, FIGS. 4 and 5 show an embodiment of the invention described in claim 3 .
This embodiment is one of the variations of the floor frame construction method according to the invention described in claim 2 . As described in paragraph [0002], the column 1 is a steel concrete column or a reinforced concrete column that is constructed in a cantilever manner with its lower end fixed to a foundation concrete beam or the like. The joining rate 10 subjected to the leveling process is structurally integrated and installed. With respect to the concrete pillar 1, the steel panel unit described above has the concrete pillars 1... Positioned at the four corners of the ends of the two steel beams 5 and 6 arranged in an L shape in the X and Y2 directions. It is mounted on the joining plate 10 as shown in FIG. And the steel-frame large beams 5 and 6 join a contact part with the joining plate 10 by welding or bolting or other means. In FIG. 4, reference numeral 12 denotes a deck plate, 13 denotes a column reinforcing bar, and 14 denotes a stud bolt that integrates the joining plate 10 to the top end of the concrete column 1.
According to the above-mentioned floor frame construction method, the steel frame panel unit is simply assembled by grounding on the ground, and then suspended by a crane or the like on the joint plate 10 at the top end of the concrete column 1 and immediately joined by welding or the like. The frame work can be advanced with high efficiency.

It is an axis diagram of a one-story building with concrete columns and steel beams. It is a top view which shows the steel structure panel unit of this invention. It is a top view of the floor assembly which built the said panel unit on the pillar. It is sectional drawing which shows the connection with a steel frame beam and a concrete pillar. It is a top view which shows the connection with a steel frame beam and a concrete pillar. It is a top view which shows the conventional steel frame panel unit. It is a top view which shows the other example of the conventional steel frame panel unit. It is a top view of the floor assembly using the panel unit of FIG.

Explanation of symbols

1 pillar (concrete pillar)
5 Steel Large Beam 6 Steel Large Beam 7 Small Beam 8 Grandchild Beam L Interval 10 Joint Plate

Claims (4)

And two steel girder which the X · Y2 direction are arranged in an L-shaped (5, 6), arranged in parallel spaced apart (L) between the direction of steel girders (6), the other direction multiple right angle and one of steel joists joined to steel girder (5) (7), and to between the steel joists (7) and parallel thereto a first direction of steel girders (6) consists out with extending parallel to opening the Honma septum was steel Magohari (8 ...), it said L-shaped arrangement of the steel girder (5, 6), in plan view, aligned in the longitudinal and lateral directions column (1...) A steel-framed panel unit, wherein the steel-framed panel unit is installed in a manner facing the common direction . And two steel girder disposed in L-shaped in X · Y2 direction (5,6), arranged parallel to and in the other direction steel at an interval (L) between the direction of steel girders (6) girder (5) one and steel joists (7) joined to, and the steel joists (7) perpendicular to the plurality Honma septum to between parallel the direction of steel girders (6) to A plurality of steel-made panel units composed of steel grandchild beams (8 ...) laid in parallel with the opening opened, and the L-shape on the columns (1 ...) aligned in the vertical and horizontal directions when viewed in plan A floor frame construction method using a steel-framed panel unit, characterized in that the steel beams (5, 6) arranged in a common direction are installed in a bridge. The column (1) is a steel reinforced concrete column or a reinforced concrete column, and is provided with a joining plate (10) leveled and structurally integrated on the top end surface of the column (1). hung placing the ends of the X · Y2 direction L-shaped arrangement of the steel girders is (5,6) on (10) of the joint plate of the column (1), welding the contact portion between the joining plate (10) The floor frame construction method using a steel frame panel unit according to claim 2, wherein the floor frame construction method is performed by a means such as the above. 3. The floor frame construction method using a steel panel unit according to claim 2 , characterized in that the steel beams (5, 6) arranged in an L shape in the X and Y2 directions constituting the steel frame panel unit are equal.