JPH09209454A - Building construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the execution of work by joining a beam structural steel with a joint steel plate, using a column structural steel as an erection and lifting up a floor area along the column structural steel and driving a wedge into the clearance between the joint steel plate and the column structural steel at a desired elevation so as to fix. SOLUTION: A column structural steel 3 is used as an erection. Joint steel plates 6a and 6b are penetrated through the column structural steel by way of a through hole, thereby sandwiching the end of a beam structural steel with the joint steel plate 6a positioned on the lower side and the joint steel plate 6b positioned on the upper side and fasten the steel with a high strength bolt. A floor is further constructed on the beam structural steel 4, thereby assembling a floor site 10 of a first floor portion on the ground and lifting up the floor site along the column structural steel so that the floor site 10 may be fixed at a desired elevation by driving a wedge into the clearance between the joint steel plates 6a and 6b and the column structural steel 3. It is, therefore, possible to execute construction work with ease even by means of a very simple device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a building with a steel frame.

[0002]

2. Description of the Related Art Many lift-up construction methods and push-up construction methods have been proposed and implemented as one of construction methods for steel frame structures.

7 and 8 show a conventional lift-up construction method, the lift-up support body 1 is first started up, and the whole body 2 which is lifted up between the lift-up support bodies 1 is assembled to form the body 2 I try to lift up the whole of it.

This lift-up construction method is an excellent construction method with high work efficiency because it can mainly perform dangerous work for assembling a steel frame at a high place on the ground.

[0005]

However, in the above-mentioned conventional lift-up construction method, since the skeletons to be lifted up are assembled on the ground and the lift-ups are collectively performed, the lift-up work and the device become large-scale. However, sufficient body accuracy is required before and after the lift-up.

An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to provide a construction method capable of performing simple construction with a very small device for lifting or pushing up.

[0007]

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention constructs a pillar steel frame, and joins a beam steel frame with a steel plate for joining which penetrates the column steel frame through a through hole, and a floor to this. Assembling the constructed floor part on the ground, raising this floor part along the pillar steel frame, and fixing it by striking a wedge in the gap between the steel plate for connection at the through hole and the pillar steel frame at a predetermined height, and In order to raise the floor portion, a gist is to provide a hook on the joining steel plate portion and suspend it from the upper end of the column steel frame or the lower end of the upper beam steel frame.

According to the first aspect of the present invention, a steel plate for joining is used, and by attaching and detaching it with a wedge, the pillar and the beam can be fixed and freely fixed as needed, and a simple lift-up (or push-up) is possible. Can be constructed. Further, since each floor of the building can be assembled on the ground and lifted up (or pushed up), the construction can be performed with a very small device as compared with the conventional method of lifting up the entire building.

Further, since it can be fixed at any time during the lift-up by inserting a wedge into the gap between the steel plate for joining and the column steel frame, the lift-up construction having a higher degree of freedom than dividing the lift-up into multiple stages. It can be carried out.

Even when it is finally fixed to the column steel frame, the wedge is inserted and fixed in the clearance between the column steel frame and the joining steel plate, so that the insertion depths of the wedges inserted from four directions are appropriately changed. Thus, misalignment between the column steel frame and the joining steel plate can be easily adjusted.

Since it can be fixed and joined only by the wedges as described above, not only the welding of the column / beam joints and the work of joining the high-strength bolts are finally unnecessary, but also during the lift-up, the pillars can be joined as needed. Can be easily fixed and removed,
More diverse lift-up construction methods can be realized.

According to the second aspect of the present invention, in addition to the above-mentioned action, in order to lift up, the joining steel plate portion is suspended and pulled up, so that it is stably raised along the pillar steel frame. be able to.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 are front views of respective steps showing one embodiment of the construction method of the present invention, in which 3 is a column steel frame which is a square steel pipe column.

The pillar steel frame 3 is erected, and the joining steel plates 6a and 6b are passed through the pillar steel frame 3 through the through holes 5. As shown in FIG. 6, the joining steel plates 6a and 6b are provided with a rectangular through hole 5 through which the column steel frame 3 passes, and in the present embodiment, the beam flange 4 has an upper flange 4a and a lower flange 4b. Bolt holes 8 for bolting are provided side by side from the peripheral portion toward the center. In the figure, 9 is a wedge.

Such joining steel plates 6a, 6b are stacked and placed on the base of the pillar steel frame 3 which is erected upright, in the required number of floors. It should be noted that illustration of such joining steel plates 6a and 6b is omitted in FIG.

The end of the beam steel frame 4 is sandwiched between the lower joining steel plate 6a and the upper joining steel plate 6b.
The upper flange 4a and the lower flange 4b of the beam steel frame 4 are fastened with high-strength bolts. It is also conceivable to carry out welding joining instead of the bolt fastening.

Further, as shown in FIG. 2, a steel plate 6 for joining is used.
a and 6b are continuous, and if necessary, a floor 7 is constructed on the beam steel frame 2 incorporating a beam, and a floor portion for the first floor
Assemble 10 on the ground. A concrete slab made of a deck plate is suitable for the floor 7. Further, the outer wall 12 may be attached.

Then, the floor portion 10 is elevated along the pillar steel frame 3, and a wedge 9 is inserted from below to a gap between the steel plates 6a, 6b for joining in the through hole 5 and the pillar steel frame 3 at a predetermined height. Hit and fix. As shown in FIG. 3, this raising is performed by providing a hook 11 on the upper surface of the joining steel plate 6b and suspending and supporting it by a lift-up device 13 provided at the upper end of the pillar steel frame 3.
The lift-up device 13 of FIG. 3 shows an example,
It is also possible to provide the lower end of the upper beam steel frame.

After the floor part 10 on the uppermost floor is fixed in this manner, the same process is further repeated to successively construct the floor part 10 on the lower floor.

As another embodiment, the floor portion 10 can be lifted by a push-up construction method such as a jack instead of the lift-up.

[0021]

As described above, the construction method of the present invention is
It is a very small device for lift-up or push-up, and can be installed easily.

[Brief description of drawings]

FIG. 1 is a front view showing a pre-stage process before lift-up showing one embodiment of a construction method of the present invention.

FIG. 2 is a front view showing steps before and after lift-up showing an embodiment of the construction method of the present invention.

FIG. 3 is a plan view of an essential part of a pre-stage before a lift-up showing one embodiment of the construction method of the present invention.

FIG. 4 is a vertical cross-sectional side view of an essential part after lift-up showing one embodiment of the construction method of the present invention.

FIG. 5 is a plan view of an essential part after lift-up showing one embodiment of the construction method of the present invention.

FIG. 6 is a perspective view showing the mutual connection of members in the construction method of the present invention.

FIG. 7 is a front view of a conventional example before lift-up.

FIG. 8 is a front view after lift-up in a conventional example.

[Explanation of symbols]

1 ... Lift-up support frame 2 ... Frame 3 ... Column steel frame 4 ... Beam steel frame 4a ... Upper flange 4b ... Lower flange 5 ... Through holes 6a, 6b ... Joining steel plate 7 ... Floor 8 ... Bolt hole 9 ... Wedge 10 ... Floor part 11 ... Hook 12 ... Outer wall 13 ... Lift-up device

Claims (2)

[Claims] 1. A pillar steel frame is erected, a beam steel frame is joined with a steel plate for joining which penetrates the column steel frame through a through hole, and a floor portion where a floor is constructed is assembled on the ground, and this floor portion is a pillar. A construction method characterized by raising along a steel frame and fixing a wedge at a predetermined height in a gap between a joining steel plate and a column steel frame in the through hole. 2. The construction method according to claim 1, wherein a hook is provided on a steel plate portion for joining to raise the floor portion, and the floor steel portion is suspended and supported from the upper end of the column steel frame or the lower end of the upper beam steel frame.