JP2003056060A - Frame structure of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame structure, in which building members are mutually assembled and disassembled easily and the building members can be reused and which can be reused and recycled. SOLUTION: Since the foundation structure of a building 1 has a simple structure in which a steel-framed column 2 and a steel pipe pile 3 are only clamped by a tension bolt 4, the execution of works and a disassembly are also enabled easily. Connection-section steel frames 7 are installed to the connecting sections of the columns 2 continuing in a coaxial shape, and the columns 2 continuing in the coaxial shape are connected by a clamping by bolts through the connection-section steel frames 7. When girders 9 are secured, catch plates 10 may be connected to brackets 7d mounted on the steel frames 7 through catch plates 10. The connecting sections of the girders 9 and beams 11 have a structure only by a connection by the bolts 8 through the catch plates with rectangular sections. Projecting sections fitted by a flash butt welding are formed to the top faces of the upper flanges of the girders 9 for increasing the anchorage strength of cast-in-place concrete 13c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame structure of a building which allows easy assembly and dismantling of members in a building and reuse of the members after dismantling.

[0002]

2. Description of the Related Art Currently, construction wastes generated from construction sites account for about 40% of the final disposal amount of all industrial wastes.
For this reason, in recent years, formation of a recycling-based society has been demanded, in which the generation of construction waste such as construction waste materials and construction surplus soil at the construction site is suppressed and recycling is attempted.

[0003]

However, in order to increase the rigidity between construction members in a building, concrete is often poured or welded, and the rigidly connected construction members are disassembled. Work is often extremely difficult. Also,
There are many cases where the same construction material is used in combination with different specifications and different sizes, and there are many problems in attempting reuse.

In view of the above circumstances, the present invention provides a frame structure structure of a building that allows easy assembly and disassembly of construction members and the reuse of the construction members, and enables reuse and recycling. Is intended.

[0005]

A frame structure of a building according to claim 1, which is a frame structure of a building which can be easily assembled and disassembled between members and which can be reused and recycled. It is characterized in that the standard is unified for each construction member constituting the structure, and that fastening is performed by using bolts in any connection between different construction members and between the same construction members.

According to a second aspect of the present invention, in the frame structure of the building, the basic structure of the building has a structure in which a pillar and a pile are coaxially and integrally provided without a footing and an underground beam. The base plate provided on the lower end of the pile and the top plate provided on the pile head portion of the pile are fastened with a tension bolt.

The frame structure of a building according to claim 3 is characterized in that a screw type steel pipe pile is used for the pile.

According to a fourth aspect of the present invention, in the frame structure of a building, a joint portion steel frame is provided at a joint portion between a column located below the building and a column located above the building portion. The lower flange and the top plate provided on the pillar located at the lower side are fastened by bolts, and the upper flange of the joint part steel frame and the base plate provided on the pillar located at the upper side are fastened by bolts, A large beam of the building is fastened to the bracket of the steel portion of the joint portion with a bolt through a joint plate.

According to a fifth aspect of the frame structure of the building, the floor height of the building is modularized.

In the frame structure of a building according to a sixth aspect of the present invention, the connecting portion between the girder and the girder is fastened with a bolt through a joint plate having a web shape of the girder and a web of the girder. It is characterized by

According to a seventh aspect of the frame structure of the building, a projection for fixing the floor slab is attached to the upper flange of the girder by flash butt welding.

In the frame structure of the building according to claim 8, a plurality of screw holes are provided in the upper flange of the girder.
It is characterized in that a threaded joint bar for fixing a floor slab is detachably attached to the screw hole.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a frame structure of a reusable / recyclable building according to the present invention will be described below with reference to FIGS. 1 to 4.

FIG. 1 shows a conceptual diagram of the entire building 1. Figure 1
As can be seen from the above, the connection between the construction members is performed by fastening with bolts in the case of the same construction members and in the connection of different construction members.

(Basic structure of building) As shown in FIG.
The basic structure of the building 1 is different from the conventional basic structure of the building, and has a simple structure in which the steel frame columns 2 are directly connected to the steel pipe piles 3 without using footings and underground beams. The steel column 2 is composed of a column main body 2a, a top plate 2b provided so as to cover the upper end and the lower end of the column main body 2a, and a base plate 2c.
The column main body 2a of the steel frame column 2 may have any cross section such as a cylinder or a square tube, and is not limited to this.

The steel pipe pile 3 is a cylindrical pile body 3a.
And a top plate 3b provided so as to cover the upper ends of the piles 3a. In the embodiment of the present invention, as the steel pipe pile 3, a screw type steel pipe pile is used. The screw-in steel pipe pile is the pile body 3a.
A spiral wing (not shown) is welded to the tip of the above, and since it penetrates into the ground by rotational press-fitting, it is possible to perform soil-free construction. Further, since the screw-in type steel pipe pile can be easily pulled out by rotating the steel pipe pile in a direction opposite to that at the time of penetration, recycling can be easily performed.

The steel column 2 and the steel pipe pile 3 are aligned in such a manner that they are coaxial with each other in the vertical direction,
The steel pipe pile 3 is placed so that the lower surface of the base plate 2c provided on the steel frame column 2 is in contact with the upper surface of the top plate 3b provided on the pile head. The top plate 3b
The base plate 2c and the base plate 2c are provided with a plurality of holes (not shown) at coaxial positions, and the steel column 2 and the steel pipe pile 3 are integrated by being fastened via the tension bolts 4.

It should be noted that the tension bolt 4 is not limited to the type as long as the tension bolt can be transmitted by tightening the joint portion such as a high-strength bolt so that the tension force can be transmitted. In addition, in the embodiment of the present invention, for the purpose of rust prevention at the joint 4 between the steel column 2 and the steel pipe pile 3, a reinforcing rod 6a is arranged around the joint 4 and a root winding embedded with concrete 6b. 6 is going.

(Structure of Joint Portion) FIG. 1 shows the structure of the joint portion of the plurality of steel columns 2 which are continuous in the vertical direction. The joint portions of the plurality of steel frame columns 2 that are continuous in the vertical direction are connected via the joint portion steel frame 7. The joint portion steel frame 7 has a tubular body 7a having the same cross section as the steel column 2, an upper flange 7b and a lower flange 7c, which are provided so as to cover the upper end portion and the lower end portion of the tubular body 7a, respectively. It is composed of a bracket 7d provided on a side portion of the tubular body 7a. In the embodiment of the present invention, the cross sections of the upper flange 7b and the lower flange 7c are the same as those of the top plate 2b and the base plate 2c of the steel frame column 2, but a cylinder forming the joint part steel frame 7 If it is sufficiently larger than the cross section of the body 7a, it does not matter.

In the steel column 2 located below, the steel column 2 located above, and the joint steel frame 7 provided therebetween, the column body 2a and the cylindrical body 7a are coaxial with each other in the vertical direction. In the state of, the top plate 2b of the steel column 2 located below and the lower flange 7c of the joint steel frame 7, the base plate 2c of the steel column 2 located above and the upper flange 7b of the joint steel frame 7, A plurality of holes (not shown) are provided at respective coaxial positions, and the plurality of steel frame columns 2 are continuously connected by being fastened via bolts 8, respectively.

Further, in FIG. 1, the connection part steel frame 7 and the girder 9 are shown.
The structure of the joint part of is shown. As shown in FIG. 2, the bracket 7d connected to the girder 9 is made of an H-shaped steel material, and the same member as the girder 9 is used. The ends of the bracket 7d and the ends of the girder 9 are upper flanges,
And the lower flanges, and further, the splice plate 10 is attached so as to straddle the webs, and the end of the girder 9 and the upper flange, the lower flange of the end of the bracket 7d, and the bolts fixed to the web in advance are used. It has been concluded.

As described above, since the girder 9 is connected to the bracket 7d of the joint steel frame 7 to form the floor of the building 1, the floor height of the building 1 is higher than that of the steel column 2. It will be determined by the member length. Therefore, the floor height of the building 1 will be modularized by unifying the standard of the members including the length of the steel columns 2.

(Structure of connection between large and small beams) FIGS. 1 and 3
The structure of the joint portion of the large beam 9 and the small beam 11 is shown in FIG. An end portion of the cross beam 11 is opposed to a side surface of the cross beam 9 at a right angle, and a connecting member 12 having a right angle shape for connecting these webs to each other is preliminarily attached to the webs of the cross beam 9 and the cross beam 11. It is fastened by a plurality of fixed bolts 8.

The connecting member 12 is made of an L-shaped steel material having a right-angled shape so as to be along the web of the beam 11 and the web of the girder 9 which are opposed to each other at a right angle. It should be noted that the connecting member 12 may be any steel material having a right-angled shape without being particular about this. These connecting members 1
The hole 2 is provided in advance so that the bolt 8 previously fixed to the web can pass through.

(Structure of Girder and Floor Slab) FIG. 4 shows the structure of the girder 9 and the floor slab 13. The floor slab 13 is
The concrete panel 13a provided so as to be bridged between the large beams 9, the reinforcing bars 13b arranged so as to be continuous with the upper surfaces of the plurality of concrete panels 13a, and the reinforcing bars 13b were laid so as to be buried. It is composed of cast-in-place concrete 13c.

As shown in FIG. 1, on the upper flange of the girder 9, the end portions of the adjacent concrete panels 13a are placed, respectively, and the cast-in-place concrete 13c is placed.
Has a role of connecting the ends of the girder 9 and the adjacent concrete panels 13a. At this time, in order to increase the fixing strength of the girder 9 and the cast-in-place concrete 13c, as shown in FIG. 4 (a), a protrusion 9a attached by flash pad welding is provided on the upper surface of the upper flange of the girder 9. Has been.

As shown in FIG. 4 (b), a hole (not shown) is previously formed in the upper flange of the girder 9 for the purpose of increasing the fixing strength of the cast-in-place concrete 13c, like the projecting portion 9a. Alternatively, a so-called stud dowel may be used as a substitute for the threaded bar reinforcing bar that is provided and is sufficiently longer than the member thickness of the upper flange.

As described above, the present embodiment is merely an example, and it goes without saying that the present invention is not limited to the present embodiment and any form can be adopted without departing from the spirit of the present invention.

According to the above-mentioned structure, since all the joints of the construction members constituting the frame of the building 1 are joined by the fastening using the bolts 8, the assembling and disassembling are easy,
Moreover, since the construction member retains its original shape even after dismantling, it can be easily reused.

The basic structure of the building 1 is the steel column 2
Since it has a simple structure in which the steel pipe pile 3 is simply fastened with the tensile bolts, the construction and the disassembly can be easily performed. Further, by using a screw-in type steel pipe pile for the steel pipe pile 3, it becomes possible to eliminate the discharged soil due to the construction, it is easy to pull out, and the steel pipe pile 3 can be reused easily. .

The joint portion steel frame 7 is provided at the connecting portion of the steel frame columns 2 which are coaxially continuous, and the joint portion steel frame 7 is coaxially continuous by being fastened with a bolt through the joint portion steel frame 7. Since the steel column 2 is connected, it is easy to assemble and dismantle like building blocks, and if the standards including the member length of the steel column 2 are unified, the floor height is modularized. It is also possible to construct the building 1 easily and economically.

When the girder 9 is provided, the joint plate 10 is attached to the bracket 7d provided on the joint steel frame 7.
Since the structure is simple, it is possible to easily carry out the construction and dismantling because they can be connected via the.

Since the joints of the large beam 9 and the beam 11 are only connected by the bolt 8 through the joint plate having the right angled portion, they can be easily disassembled and the beam is reused as it is. It is possible.

On the upper surface of the upper flange of the girder 9, in order to enhance the fixing strength of the cast-in-place concrete 13c, the projection 9 is attached by flash bud welding.
Since a is provided, it is easy to remove when dismantling,
It is possible to easily reuse the girder 9.

Similarly, on the upper surface of the upper flange of the girder 9, in order to enhance the anchoring strength of the cast-in-place concrete 13c, a threaded reinforcing bar is passed through a hole provided in the upper flange in advance, and a stud girder is inserted. Since it has the above function, it can be easily removed at the time of dismantling, and the girder 9 can be easily reused.

[0036]

According to the frame structure of a building according to the first aspect of the present invention, the frame structure of a building which can be easily assembled and disassembled between members and which is reusable and recyclable is provided. The standard is unified for each construction member to be constructed, and bolts are used to connect between different construction members and between the same construction members, so assembly and dismantling are easy, and construction is possible even after dismantling. Since the member retains its original shape, it can be easily reused.

According to the frame structure of the building of claim 2, the basic structure of the building has a structure in which the pillar and the pile are coaxially and integrally provided without a footing and an underground beam,
Since the base plate provided at the lower end of the pillar and the top plate provided at the pile head of the pile are fastened by the tension bolts, it is possible to easily perform construction and disassembly with a simple structure. is there.

In the frame structure of the building according to the present invention, since the steel pipe piles are used for the piles, it is possible to eliminate the soil discharged by the construction, and it is easy to pull out the steel pipes. It is possible to easily reuse the piles.

According to the structure structure of a building of claim 4, a joint steel frame is provided at a joint portion between a pillar located below the building and a pillar located above the building, and the joint steel frame is provided. The lower flange of the steel frame and the top plate provided on the column located below are fastened by bolts, and the upper flange of the joint part steel frame and the base plate provided on the column located above are fastened by bolts. Since the girder of the building is fastened to the bracket of the joint part steel frame by the bolt through the joint plate, it is easy to assemble and dismantle like building blocks. It will be possible.

In the frame structure of the building according to the fifth aspect, since the floor height of the building is modularized, the construction is easy and the building can be economically constructed.

According to the frame structure of the building of claim 6, the connecting portion of the girder and the girder is bolted through the joint plate in which the web of the girder and the web of the girder have a hook shape. Since it is fastened, it can be easily disassembled and the beam can be reused as it is.

In the frame structure of the building according to claim 7, since the projection for fixing the floor slab is attached to the upper flange of the girder by flash butt welding, it can be easily removed during dismantling and the girder of the girder can be easily removed. It becomes possible to easily reuse.

In the frame structure of the building according to claim 8, a plurality of screw holes are provided in the upper flange of the girder,
Since the threaded joint bar for fixing the floor slab is detachably attached to the screw hole, it can be easily removed at the time of dismantling and the girder can be easily reused.

[Brief description of drawings]

FIG. 1 is a diagram showing an entire frame structure of a reusable / recyclable building according to the present invention.

FIG. 2 is a diagram showing details of a joint portion steel frame arranged between continuous steel frame columns according to the present invention.

FIG. 3 is a diagram showing details of a joint portion of a girder and a girder according to the present invention.

FIG. 4 is a diagram showing details of a girder and floor slab according to the present invention.

[Explanation of symbols]

1 building 2 steel columns 2a pillar body 2b top plate 2c base plate 3 steel pipe pile 3a pile 3b top plate 4 tensile bolt 5 joints 6 Nemaki 6a Reinforcing bar 6b concrete 7 Connection part steel frame 7a cylinder 7b Upper flange 7c Lower flange 7d bracket 8 volt 9 large beams 9a protrusion 10 joint plate 11 beam 12 Connection member 13 floor slabs 13a Concrete panel 13b Rebar 13c Cast-in-place concrete 14 Screw joint reinforcement

Claims (8)

[Claims] 1. A structure structure of a building which can be easily assembled and disassembled between members and which can be reused / recycled. The standard is unified for each construction member constituting the structure structure, and different construction is performed. A frame structure of a building characterized by being fastened using bolts in any connection between members and the same construction member. 2. The frame structure of a building according to claim 1, wherein the foundation structure of the building has a structure in which a pillar and a pile are coaxially and integrally provided without a footing and an underground beam,
A frame structure of a building, wherein a base plate provided at a lower end portion of the pillar and a top plate provided at a pile head portion of the pile are fastened with a tension bolt. 3. The frame structure of a building according to claim 1, wherein a screw type steel pipe pile is used for the pile. 4. The frame structure of a building according to claim 1, wherein a joint steel frame is provided at a joint portion between a pillar located below the building and a pillar located above the building. ,
The lower flange of the joint portion steel frame and the top plate provided on the column located below are fastened by bolts, and the upper flange of the joint portion steel frame and the base plate provided on the column located above are A structure frame structure for a building, wherein the girder of the building is fastened by a bolt through a joint plate to the bracket of the steel portion of the joint portion. 5. The building frame structure according to claim 4, wherein the floor height of the building is modularized. 6. The frame structure of a building according to claim 4 or 5, wherein the connection portion between the girder and the girder is connected via a joint plate in which the girder web and the girder web have a hook shape. A frame structure of a building characterized by being fastened with bolts. 7. The frame structure for a building according to claim 4, wherein the upper flange of the girder is provided with:
A frame structure of a building, characterized in that projections for fixing the floor slab are attached by flash butt welding. 8. The frame structure of a building according to claim 4, wherein the upper flange of the girder is provided with:
A frame structure of a building, wherein a plurality of screw holes are provided, and threaded joint bars for fixing floor slabs are detachably attached to the screw holes.