JP2001207529A - Structure of steel building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a steel building having stable structure and capable of increasing tenacity to withstand earthquake sufficiently and reducing a load due to a weight of a wall. SOLUTION: This steel structural body 2 has a main steel 3 of a column and a main steel 4 of a horizontal beam, a reinforcing structural body 31 having a support frame and reinforcing bars are assembled in an intermediate part between the main steels 3 and 4, and a flow hole in which concrete is poured is formed on a surface of the support frame. A story floor iron member structural body 5 is constituted in such a way that a story floor iron plate 50 is arranged on a top surface of the main steel 4 of the horizontal reinfocement steel nets 51 cross on it. A plurality of connectors 6 are assembled in the main steel 4 of the horizontal beam, a screw hole 60 is formed on one side face of the connector 6, and the screw hole 60 corresponds to a continuous contact device 40 provided on the main steel 4 of the horizontal beam to connect them firmly. Wall structural bodies 7 are connected by corresponding to the continuous contact device 40. A netlike plate is fixed so as to surround outer periphery of an iron member structure assembled in the steel structural body 2 and is used as an outer form net.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the structure of a steel building.

[0002]

2. Description of the Related Art As shown in FIG. 1, most conventional reinforced concrete or steel reinforced concrete buildings have a concrete template A formed by wires or nails between upper and lower cross beams 10 and two front and rear templates. The concrete 11 is filled in between A and the template A is removed after the concrete 11 has hardened.

[0003]

However, the structure of a conventional steel-framed concrete building or a steel-framed reinforced concrete building has the following drawbacks during construction. (1) During the construction of steel-framed reinforced concrete, the arrangement of the reinforcing bars in the reinforced concrete is not easy, and the connection with the steel frame is not easy, and the concrete often surrounds the reinforcing bars and supports the stress, resulting in poor bonding and reliability. Problems, severely affecting the structural safety of the building.

(2) During the construction of steel-framed reinforced concrete, it is not easy to assemble the templates, and foreign materials on the templates and debris generated when the wires are tied or nailed are formed in the concrete. In addition to dropping and mixing, affecting the quality of the concrete, water and electricity plumbing may be punctured when drilling, causing water to leak and breaking the hardened concrete for repair. I have to repair it.

(3) During the construction of steel-framed reinforced concrete, the gap between the steel frame, the reinforcing bar and the template in the structure is narrow, so that the difficulty in pouring and striking the concrete increases, and in the template where the concrete is sealed. Therefore, it is difficult to detect in advance the state of the honeycomb (a state in which hollow holes are generated by air when pouring concrete), and the structure cannot be immediately improved.

(4) During the construction of steel-framed reinforced concrete, since the structural material such as wall columns is too high, it is not easy to open the concrete pouring opening of the template (constant standard). Occurs and shrinks after hardening, affecting the quality of concrete. (5) During the construction of steel-framed reinforced concrete, the construction of the structure involves the steps of pouring steel, reinforcing bars, templates and concrete, so there are many construction sites and there are problems such as the procurement and management of workers required for construction. Yes, it is difficult to ensure process quality.

(6) During the construction of steel reinforced concrete, a considerable space is required for the storage of reinforcing bars, templates and supporting materials, which hinders the traffic of workers and the smoothness of the construction work, and imposes a burden on the site for environmental management. To increase. (7) During the construction of steel-framed reinforced concrete, a space for pouring concrete with a wooden template is formed.The wooden template is easily corroded and has a short service life and is suitable for temporary work. Material has no benefit in strengthening its structure and wastes resources, and the operation of the material is rather a waste of forest resources.

(8) The basic principle of the steel-framed reinforced concrete structure is that the two portions of the steel frame and the reinforced concrete are combined and integrated, and have an action of jointly receiving an external force. However, the contact surface between the two is likely to be cracked due to poor connection, and the reinforced concrete part is constructed when the number of reinforcing bars is not enough, when an earthquake occurs, or when a shock is applied by external force. The material deforms significantly and tears open or bursts. If it is light, the internal pipeline will be destroyed and water will leak,
At worst, it affects the safety of the structure.

(9) Pipes buried in walls (PVC plastic pipes) are prone to cracks due to earthquakes or sunlight irradiation if the walls on both sides of the pipes are too thin, and when rain falls, water enters the room. It causes the phenomenon of seepage. Therefore, an object of the present invention is to provide a structure of a steel building in which the entire structural system is stable, the toughness is increased, the structure can withstand earthquakes sufficiently, and the load due to the weight of the wall can be reduced.

[0010]

According to the present invention, a steel structure has a column and a cross beam main steel frame, and a support frame and a reinforcing steel bar are provided between the main steel frames. And a flow hole for pouring concrete is formed on the surface of the support frame. next,
In the floor steel structure, a floor iron plate is disposed on the upper surface of the main steel frame of the cross beam, and the reinforcing steel net is placed on the floor iron plate. A plurality of couplers are attached to the main steel frame of the cross beam, and a screw hole is formed on one side of the coupler, and the screw holes correspond to the connecting members provided on the main steel frame of the cross beam, and bolts and nuts are used. Both are tightly connected. The wall structure is connected to the connecting member provided on the main steel frame of the cross beam. The mesh plate is fixed so as to surround the outer periphery of the iron material structure attached to the steel structure, and is used as an outer mold net.

In the structure of the steel building according to the present invention, the effect of concrete binding is enhanced by the steel structure including columns and cross beams and the reinforcing structure, the strength of the structure is increased, and each floor is placed on the upper surface of the cross beams. Since the iron plate is provided and the reinforcing steel mesh is arranged in a crossing arrangement on it, the strength is strong, and in addition, the outer wall structure and the inner separating wall structure are connected to each structure with various connecting members. Strong resistance to earthquakes. In addition, since each structure is constructed at the factory and then transported to the construction site,
The work site is not crowded. In addition, since concrete is poured at once after all the structures are constructed, the construction is completed quickly.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the structure of the steel building according to one embodiment of the present invention includes the following structures. First, the steel structure 2 has a main steel frame 3 of a pillar made of iron material and a main steel frame 4 of a cross beam.
No. 0 is fixed, and the end is welded and fixedly joined to the surface of the steel frame by electric welding. The connecting members 30, 40 are provided with screw portions 300, 400 at the outer ends, and are screwed with other screw members. As shown in FIG. 3, the column auxiliary structure 31 and the beam auxiliary structure 41 are assembled to the main steel frames 3 and 4 and have a plurality of support frames 310 and 410.
And a plurality of through-holes 311 and 411 are formed on the surface thereof.
1 is a threaded portion 30 of the connecting members 30 and 40 of the main steel frames 3 and 4
0, 400, supporting frames 310, 410 with bolts N
Are screwed tightly to the main steel frames 3, 4. Support frame 31
A plurality of flow holes 312 and 412 are formed on the surface of the bases 0 and 410 to allow concrete to flow. A plurality of reinforcing bars 33, 43 penetrate the interior space of the column (beam) already surrounded. Thereby, the auxiliary structures 31 and 41 of the main steel frame 3 of the pillar and the main steel frame 4 of the beam are completed.

In addition, the supporting frames 310 and 410 are provided at appropriate positions on the inner wall near the two opposing ends.
4 and 44 are connected, thereby increasing the stiffness and strength of the auxiliary structures 31, 41 and effectively increasing the effectiveness of the assisting and covering of the beam and column structure. Also, reinforcing iron plates 34, 44
Are formed with through holes 340 and 440 at both ends thereof, and screwed portions 300 and 400 of the connecting members 30 and 40 and the support frame 31 are formed.
Corresponding to the through holes 311 and 411 (see FIGS. 4 to 6) of 0 and 410, and combined with bolts and nuts.
The reinforcing iron plates 34 and 44 may be plate-like, channel-like or angle-like materials.

Next, the floor steel structure 5 (see FIG. 2) is installed on the main steel frame 4 of the cross beam, and mainly the main steel frame 4 of the cross beam.
A floor steel plate 50 is arranged on the steel plate 50, and a reinforcing bar network 51 is further installed on the iron plate 50 so as to be crossed. Fixed reinforcing bars 510 are provided around four sides of the reinforcing bar network 51, respectively. Is bent upward or downward outside the main steel frame 4 of the cross beam. However, fixed reinforcing bars on the ground floor are bent upward only.

The plurality of connectors 6 are connected to a connecting member 40 on the surface of the main beam 4 of the cross beam, and are firmly connected to the main steel frame 4 of the cross beam with bolts N. Two screw holes 60 are formed on one side surface of the coupler 6 so as to correspond to the screwed portion 400 of the connecting tool 40, and another side extending outward is formed on the connecting tool 61, and two connection holes are formed on the surface thereof. The support frame 7 of the wall structure 7 is formed by forming
0 is firmly connected.

The wall structure 7 is installed outside the main steel frame 4 of the cross beam of the steel structure 2, and has a plurality of support frames 70 as shown in FIGS. Attach a plurality of connecting horizontal frames 701 in the middle of the two angles 700,
Also, a plurality of through holes 702 are formed on the outer surface of the angle 700, and a connecting plate 703 is welded and fixed to one end of the angle 700, and slightly long slot holes 704 are formed on both sides of the surface of the connecting plate 703. Then, it is assembled corresponding to the coupler 6.

When assembling, the main steel frame 3 of the column and the main steel frame 4 of the cross beam are assembled in a predetermined position, and assembled.
And the supporting frame 3 of the auxiliary structure 31, 41 outside the structure of the main steel frame 3 of the column and the main steel frame 4 of the cross beam.
10 and 410 are combined with reinforcing iron plates 34 and 44 (as shown in FIG. 3), and reinforcing reinforcing bars 33 and 43 are inserted into each structural section, and furthermore, a floor is provided on the upper surface of the main steel frame 4 of the cross beam. The iron material structure 5 (see FIG. 2) is laid,
0 is arranged on the upper surface of the main steel frame 4 of the cross beam, and a reinforcing bar network 51 is laid thereon. After that, the wall structure 7 is further assembled to the outside of the steel structure 2. That is, each support frame 70 is attached to the side surface of the coupler 6. Support frame 7 first when assembling
The connection plate 703 above the connector 0 is aligned with the connection tool 61 of the connection device 6, and the bolts N are respectively connected to the connection holes 610 of the connection device 6 and the connection plate 7.
After passing through the slot 704 of No. 03, it is tightened with a nut and tightly combined. The slot 704 of the connecting plate 703 can be used for adjusting a positional error in combination. Next, the horizontal reinforcing bars 72 are inserted on the connecting horizontal frames 701 of the respective support frames 70 (the horizontal reinforcing bars 72 are formed of two separate reinforcing bars, and the center portions thereof are overlapped to increase the strength of the middle step of the wall surface). After that, the vertical reinforcing bar 73 is connected to the horizontal reinforcing bar 7 between the two support frames 70.
Weld with 2. Next, the fixed reinforcing bar 510 bent and provided around the reinforcing bar network 51 is connected to the horizontal reinforcing bar 72 of the wall structure 7 (tied with a wire or welded). Thereby, the outer wall structure 7 is completed.

When assembling the upper and lower floor walls, other means can be used. FIG. 8 shows an example in which the connector 61 of the connector 6 is directly welded to the support frame 70 of the wall structure 7. At this time, the screw hole 60 is firmly connected to the main beam 4 of the cross beam. The wall structure 7 of another floor which is in contact with the upper side is connected to the connecting plate 703 at the lower end of the support frame 70 by the connecting tool 61 of the connecting device 6.
(This is already rigidly connected to the wall of the lower floor), and each bolt N is connected to the connection hole 610 of the connector 6 and the connection plate 7.
Pass through the slot 704 of No. 03, tighten with a nut, and tightly combine. This is another more preferred means of assembling the upper and lower floor wall structures 7.

Further, as shown in FIG. 9, when an isolation wall structure 8 for isolating a room inside the building is assembled, the main steel frame 4 of the cross beam inside the steel structure 2 is located between the beams. A coupler 6 ′ close to an L-shape is installed, and a screw hole 60 ′ is formed in a horizontal surface of the coupler 6 ′ to form a threaded portion 400 of the connecting tool 40.
A connecting tool 61 'is provided on the other vertical surface of the connecting device 6' to open two connecting holes 610 '.
The partition wall structure 8 has a plurality of support frames 80, and the mesh plate 9 is attached to the outside thereof. A plurality of transverse reinforcing bars 82 are inserted between the support frames 80, and
Represents two channels 8 extending vertically and facing in parallel
00, a lateral connection frame 801 is attached to both side surfaces, and a plurality of holes 802 are opened in the side surface thereafter.
A connecting plate 803 is welded to the upper and lower ends of the connecting plate 803.
1 'corresponds to the connection hole 610'.

When assembling the above separating wall structure 8, first, the screw holes 60 ′ on the horizontal plate surface of the coupler 6 ′ are made to correspond to the screwing portions 400 of the connecting member 40 of the main steel frame 4 of the cross beam, and Assemble and fix with. Further, the connecting plate 803 on each support frame 80 of the separating wall structure 8 is connected to the connecting tool 61 'of the connecting device 6'.
And the slot 804 of the connection plate 803 is made to correspond to the two connection holes 610 ′ of the connection tool 6 ′, and the bolt N is connected to the connection hole 61.
0 'and through the slot 804 and tightly tighten with a nut.
Further, the slot 804 can adjust the error of the combination position of the partition wall structure 8. Next, the horizontal reinforcing bars 82 are inserted onto the continuous horizontal frames 801 of the support frames 80, and if necessary, the vertical reinforcing bars are welded to the horizontal reinforcing bars 82. Finally, when the mesh plate 9 is assembled into the hole on the outer surface of the support frame 80 of the isolation wall structure 8, the assembly of the isolation wall structure on one side is completed.

The walls separating the upper and lower floor rooms can be assembled by other means. That is, the connector 61 'on one side of the vertical plate of the connector 6' is directly welded to the support frame of the partition wall structure 8 (as shown in FIG. 10). Next, the screw hole 60 'of the coupler 6'
Is fixed together with the connecting member 400 on the surface of the main steel frame 4 of the cross beam. Thus, another embodiment of the partition wall structure 8 is completed.

After the combination of the steel frame and the reinforcing bar of this structure is completed, the mesh plate 9 on the structure surface is provided with support frames 310, 410 or the reinforcing steel plates 34, 44 between the main steel frame 3 of the column and the main steel frame 4 of the cross beam. As a result, the surfaces of the support frames 70 and 80 of the wall structure 7 and the isolation wall structure 8 are firmly assembled with bolts and nuts (see FIGS. 11 to 15). In addition, the rebar (lateral or reinforced) in the structural system, when striking walls, columns and beams, bends the ends of the rebar into another interconnected structure, which acts as a fixing and reinforcing effect. do. The mesh plate 9 is made of a tin-plated iron mesh, which increases the toughness of the entire structure and reduces cracks or cracks in the concrete inside it. Further, the mesh plate 9 can be used as an outer die plate, and a complicated process of the die plate construction can be avoided. After the mesh plate 9 is sealed, concrete pouring work is performed. The concrete is poured directly from the opening left beforehand and flows down into the structure from the preformed flow holes 312,412. The auxiliary structure 41 at the corner of the beam and the wall is provided with the guide slope C at the corner of the support frame 410 as shown in FIG. 15 to make the concrete flow smoothly. Therefore, after flowing into the structure of floors, wall columns, wall beams, columns and beams and solidifying and hardening, the concrete firmly surrounds the steel frames and rebar in the structure and can withstand better stress. With the toughness to withstand earthquakes and increase the strength of the whole structure. Further, when the beams, columns and walls of the building are completed, the upper surface thereof is flattened with a glue cement K with a trowel. Thus, the wall according to this embodiment has a flat surface and does not have an uneven surface finished by the prior art, which makes the painting operation easier.

[0023]

The present invention has the following effects. (1) The connection tool, column and beam structure auxiliary support frame, wall structure support frame, mesh plate, and each connecting member can be processed and produced at the factory, so the construction is quick, the quality is stable, the efficiency is high,
The goal of automatic production can be achieved. Under normal circumstances, the construction of the present invention can reduce the construction period by one half or two thirds compared to the general method, and saves interest expenses.

(2) The connecting member is welded onto the channel or the angle member, and is fixedly connected to the column-beam structure and the supporting frame of the wall structure with bolts and nuts. In addition to improving the fault of poor connection between the steel frame and the reinforcing steel and the concrete contact surface of the vertical steel reinforced concrete building, it also increases the seismic resistance of the structure.

(3) The mesh plate can be used in place of the template, and is fixedly connected to the support frame with a mesh seal, and integrally connects the steel frame, the support frame and the mesh plate. Furthermore, the mesh plate has high toughness, completely binding the concrete in the mesh plate,
Concrete does not tear open or burst easily when subjected to an earthquake or shock. (4) Since the auxiliary structure and the wall structure surrounding and covering the columns and beams are composed of channels or horizontal frame-type support frames, automatic production is possible, and construction is quick and high quality. Above, the strength of the whole support frame is better and more stable than the conventional tie-bar system.

(5) Since the mesh plate substitutes for the template,
Pillars and pipes on the walls are clearly visible from outside. Therefore, it often occurred when binding the conventional template with a wire,
In addition to the possibility that a hole is formed in the pipe, an opening or a concrete pouring hole can be arbitrarily formed, so that it is clear at a glance whether or not a honeycomb state exists in the concrete, and the actual state of pouring can be easily grasped.

(6) Since the mesh plate can be used as a substitute for the template, installation is easy, there are no template scraps or miscellaneous substances stuck to the template, and there are no wires or suspension rods for supporting the template. No auxiliary construction equipment is required. Therefore, since the working space is large and there is no need to store the template in a large space, the environment of the construction site is clean, without excessive use of wood,
Do not waste forest resources.

(7) The design philosophy of the present invention is to mainly use a steel frame and a horizontal frame type support frame, and to supplement the reinforcing steel and concrete. The structure consists of a support frame and a mesh plate consisting of bolts and nuts and connecting parts of each type as an auxiliary.The connection is reliable and the number of construction sites and workers is reduced, so that the management becomes easier and the process becomes easier. Quality is guaranteed.

(8) Since the mesh plate is used as a substitute for the template, air bubbles generated during concrete pouring escape from the holes of the mesh plate. In addition, concrete becomes lighter and tighter when patted lightly, and at the same time, it fills the holes in the mesh plate, eliminating the honeycombs that occurred in the conventional construction work, and the phenomenon of floating water does not occur. There is no need to remove the template after curing, and the wall surface is flat and easy to finish the surface. In addition, the contact surface of the coarse mesh plate stabilizes the cement when it is applied, and the wall does not crack easily.

(9) Assembling walls outside the structure of the upper and lower floors,
After the concrete has hardened, the wall structure is connected to the fixed reinforcing bar of the floorboard and the floorboard, and is connected to the connecting member and the steel frame structure by a connector, and the wall structure forms one supporting wall. Light concrete is poured into the mesh plate of the isolation wall structure for room isolation to reduce the load on the components. (10) When burying PVC plastic piping in the wall,
Since it is protected by a mesh plate outside the wall, even if both side walls of the piping are relatively thin, they do not crack due to earthquake or sunlight irradiation.

(11) After all the wall structures of the building have been assembled, concrete is poured into each floor, so that the worker enters the site and the construction is completed at once, which is generated by the conventional building work. The phenomenon that the wall assembling worker and the concrete worker have to alternately enter the construction site and wait for another work does not occur. (12) For water and electricity pipes, connect the pipes after assembling each support frame, and insert the pipes.Since there is no need to make a hole in the template for the case, etc. You can see through the board, check the plumbing for accuracy at any time, and test the plumbing for leaks before pouring concrete.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the structure of a conventional reinforced concrete building.

FIG. 2 is an exploded perspective view illustrating a structure of a steel building according to an embodiment of the present invention.

FIG. 3 is a perspective view showing an auxiliary structure according to an embodiment of the present invention.

FIG. 4 is a perspective view showing a reinforcing iron plate according to an embodiment of the present invention.

FIG. 5 is a perspective view showing a reinforcing iron plate according to an embodiment of the present invention.

FIG. 6 is a perspective view illustrating a reinforcing iron plate according to an embodiment of the present invention.

FIG. 7 is a perspective view illustrating a wall structure according to an embodiment of the present invention.

FIG. 8 is a perspective view showing a connected state of a wall structure according to an embodiment of the present invention.

FIG. 9 is an exploded perspective view of a partition wall structure according to an embodiment of the present invention.

FIG. 10 is a perspective view showing a connection state of a partition wall structure according to an embodiment of the present invention.

FIG. 11 is a cross-sectional view illustrating a wall pillar of a structure of a steel building according to an embodiment of the present invention.

FIG. 12 is a cross-sectional view illustrating a wall column of a structure of a steel building according to an embodiment of the present invention;

FIG. 13 is a cross-sectional view illustrating a wall column of the structure of a steel building according to an embodiment of the present invention.

FIG. 14 is a sectional view showing floors and beam walls of a structure of a steel building according to an embodiment of the present invention.

FIG. 15 is a sectional view showing floors and beam walls of a structure of a steel building according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 2 steel frame structure 3 main steel frame of pillar 4 main steel frame of cross beam 5 floor steel structure 6 coupler 7 wall structure 9 mesh plate 30, 40 connecting tool 31, 41 auxiliary structure 33, 43 reinforcing steel bar 50 floor steel plate 51 Reinforcing net 60 Screw hole 61 Connector 310,410 Support frame 312,412 Flow hole

Claims (11)

[Claims] 1. A main steel frame of a column and a cross beam made of an iron material, a plurality of connecting tools fixed to an upper surface of the main steel frame, a support frame made of an iron material provided in a structural section of the main steel frame, and a reinforcing bar. Auxiliary structure having, and a steel structure having a plurality of concrete flow holes formed on the plate surface of the support frame, laid on the upper surface of the main steel frame of the cross beam, the floor iron plate, and the floor iron plate A floor iron material structure having a reinforcing steel bar arranged so as to be crossed over, connected to a main steel frame of the cross beam, having a screw hole on one side surface,
The other side extends outwardly to form a connector, the plurality of first connectors being screwed to each other with bolts and nuts corresponding to the connector fixed to the main steel frame of the cross beam. A connecting member fixed to the main steel frame of the cross beam and the first connecting member;
A wall structure attached to face the coupler, and a plurality of mesh plates attached to the outer periphery of the connecting iron material of the steel structure and usable as an outer mesh; When concrete is poured from the entrance, the concrete flows from the flow hole and flows into the floor iron material structure, the wall structure and the steel frame structure, and the mesh plate squeezes the flowed concrete. The floor iron material structure, the wall structure, and the steel frame structure are surrounded and covered so as to be tightly coupled to each other, and the floor iron material structure, the wall structure, and the steel frame structure are integrally formed. The structure of a steel building characterized by the following. 2. The structure of a steel building according to claim 1, wherein the connecting member has a threaded portion formed at an end extending outward. 3. The structure of a steel frame building according to claim 1, wherein the connecting member is connected between inner walls of the support frame facing each other. 4. The connecting tool is provided between inner walls of the support frame, has one of a plate shape, a channel shape, and an angle shape, and has holes formed at both ends. 2. The structure of a steel frame building according to claim 1, wherein the frame and the main steel frame are firmly assembled with bolts and nuts. 5. The connecting tool has a threaded portion, the support frame is installed so as to surround a square corner of the main steel frame, and a plurality of through holes are opened in a plate surface. The structure of a steel frame building according to claim 1, wherein the structure is used for assembling the support frame and the connecting member in correspondence with the screwed portion. 6. The reinforcing bar network has fixed reinforcing bars whose both ends are bent upward or downward around four sides, and both ends of the fixed reinforcing bars provided on the lowermost floor of the fixed reinforcing bars. The structure of a steel building according to claim 1, wherein the structure is bent upward. 7. The structure of a steel frame building according to claim 1, wherein the connection tool has a connection hole. 8. The wall structure has a plurality of wall structure supporting frames connected to each other by a connecting horizontal frame, and a plurality of lateral and vertical reinforcing bars provided in the wall structure supporting frames, The steel plate building according to claim 7, wherein a connection plate is provided at upper and lower ends of the wall structure support frame, and the connection plate has a through hole and corresponds to the connection tool and the connection hole. Construction. 9. The structure of a steel frame building according to claim 8, wherein the connecting plate has a long slot in a plate surface so that an assembling position of the wall structure can be adjusted. 10. The connecting tool has a threaded portion, a separating wall structure is attached to the steel structure, and a connecting plate having a hole is provided above the separating wall structure, and the connecting plate has a hole. A second connector is attached to the main steel frame of the cross beam corresponding to the wall structure, and the second connector is substantially L-shaped, and has a screw hole in which the screw portion is screwed on a horizontal plate surface. The structure of a steel frame building according to claim 1, wherein the vertical plate surface forms a connecting tool having a connecting hole, and faces the connecting plate and the hole. 11. The wall structure has a wall structure supporting frame, the connecting member is directly welded to the wall structure supporting frame, and the screw hole and the connecting member are firmly fastened with bolts and nuts. The structure of a steel frame building according to claim 1, wherein: