JPH06212705A - Reinforcing structure for architectoral structure body - Google Patents

Abstract

PURPOSE:To relax the restriction of building design by fixing a reinforcing plate to ease structural-mechanical deformation around the outer periphery of a shape steel member where the structural-mechanical deformation results from external force given to a architectural structure body. CONSTITUTION:In the case where new deformation caused by external force in a steel frame column 1 is previously presumed, two sheets of deformation checking steel reinforcing plates 2 are attached to the outer periphery of the column 1 by welding so as to be located along a longitudinal direction and mutually opposite. Next, the plate 2 acts so as to increase thickness at the deforming spot of the column 1 and to check its deformation for restricting the deformation to that shown by a two-dot chain line. Thus the restriction of building design can be relaxed by fixing the plate to the outer periphery of the column 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for a building structure which is mainly used in a unit building or the like.

[0002]

2. Description of the Related Art In a unit building, there is known a building structure having a rigid frame structure in which a steel column and a beam member (both shaped steel members) are framed into a box shape by welding. In this type of building structure, a joint piece (joint member) is welded and fixed to each steel column, and a beam member is inserted into this portion to further weld and fix a double-structured portion. In addition, bolts are also used to connect the upper and lower floors to ensure the connection of each connecting portion.

With such a structure, the external force due to an earthquake or a typhoon is not concentrated in one place, but is carried by the entire structure, and the external force is positively transmitted to the foundation to improve the strength. . By the way, the form of the building is individual, and additional reinforcement is often necessary. In such a case, for example, as disclosed in Japanese Patent Publication No. 61-42061, a horizontal brace (brace) is installed between beam members facing each other or a sub-ramen structure is erected. In addition, a so-called center pillar may be erected. Alternatively, reinforcement may be attempted by increasing the cross-sectional area of the steel column or beam itself to increase the second moment of area.

[0004]

However, in the above-mentioned reinforcing structure, since a large-scale construction using a separate member is required, an increase in total cost cannot be avoided. In addition, since there are separate members, new restrictions are placed on the living space and floor plan. The present invention was created in consideration of such circumstances, and an object thereof is to provide a reinforcing structure for a building structure capable of suppressing an increase in total cost and relaxing restrictions on building design. There is.

[0005]

In order to achieve the above-mentioned object, the reinforcing structure for a building structure according to claim 1 is configured such that the structure is formed by an external force received by a building structure in which a plurality of shaped steel members are framed in a box shape. It is characterized in that a reinforcing plate made of steel for alleviating structural mechanical deformation occurring in each of the steel materials is fixed around the perimeter of the corresponding shaped steel material.

Further, the reinforcing structure for a building structure according to a second aspect is characterized in that the shape steel material and the reinforcing plate are attached to each other in a state where their respective longitudinal ends are aligned. .

[0007]

According to the reinforcing structure for a building structure according to the first aspect, when additional reinforcement is required, a new strength calculation is performed to select a shaped steel material to be reinforced. Then, a reinforcing plate made of steel having a size suitable for the reinforcement is prepared. The reinforcing plate is fixed by welding around the outer circumference of the corresponding shaped steel material. Thereby, the structural mechanical deformation generated in the corresponding shaped steel material by the external force received by the building structure can be mitigated.

Further, according to the reinforcing structure of the building structure of the present invention, since the shaped steel material and the reinforcing plate are attached to each other in a state in which their respective longitudinal ends are aligned, the reinforcing plate is formed. The longitudinal side edges of the do not project from the longitudinal side edges of the shaped steel material, resulting in good storage, which is preferable in terms of construction and appearance.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a reinforcing structure for a building structure according to the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention, in which 1 is a steel column as a shaped steel material forming a part of a building structure.

This steel column 1 has various structural mechanical deformations required by the building structure to be used, that is,
Although the design is made in consideration of bending, twisting, shearing, etc., further reinforcement is necessary when considering the above-mentioned circumstances. That is, it is assumed in advance that each of these mold steel materials undergoes new structural mechanical deformation due to the external force received by the building structure that constitutes them. (See the alternate long and short dash line in FIG. 1C).

The steel reinforcing plate 2 for preventing such deformation is attached to the outer peripheral surface (around the outer circumference) of the steel column 1 along the longitudinal direction and by facing each other by welding two plates. The plate 2 acts as if to increase the thickness of the deformed portion of the steel column 1 to prevent the deformation, and the deformation can be stopped as shown by the chain double-dashed line in FIG. 1 (C).

At this time, the dimensions of the plate 2 are naturally obtained by a well-known strength calculation.
FIG. 2 shows a second embodiment of the present invention, in which 11 is a double pole. This is a structure that takes into consideration the influence of the external force indicated by the arrow Y in the figure, but since the plate 12 having a U-shaped cross section forms a flange from the outside of these, it reinforces,
The strength of resisting an external force acting in the direction of the arrow Y in the figure is improved.

FIG. 3 shows a third embodiment of the present invention, in which 21 is a beam member having a U-shaped cross section. This is a structure that takes into consideration the influence of an external force indicated by an arrow Z in the figure, but since the plate 22 having a U-shaped cross section forms a flange from the inner side to the outer periphery to reinforce, the arrow in the figure The strength to resist the external force acting in the Z direction is improved. In addition, since the mounting position is inside the beam 21, the presence thereof is less likely to affect the building design.

In other words, when additional reinforcement is required for the shaped steel materials 1, 11, and 21, a new strength calculation is performed to make the steel products of dimensions commensurate with the reinforcement of those shaped steel materials to be reinforced. By fixing the reinforcing plate around the outer circumference of the corresponding shaped steel material by welding, it is possible to mitigate structural mechanical deformation generated in the corresponding shaped steel material by an external force received by the building structure.

The present invention is not limited to this embodiment, and can be widely applied to structures other than buildings (bridges, incidental equipment, etc.).

[0016]

As described above, according to the invention described in claim 1, when additional reinforcement is required for the die steel material constituting the building structure, a new strength calculation is performed to reinforce it. Select the shaped steel that is subject to. Then, a reinforcing plate made of steel having a size suitable for the reinforcement is prepared. The reinforcing plate is fixed by welding around the outer circumference of the corresponding shaped steel material. As a result, there is an effect that it is possible to mitigate the structural mechanical deformation generated in the corresponding shaped steel material by the external force received by the building structure.

Further, according to the second aspect of the invention, since the shaped steel material and the reinforcing plate are attached to each other in a state in which their respective longitudinal end sides are aligned, the longitudinal end of the reinforcing plate. The side does not project from the end side in the longitudinal direction of the shaped steel material, the storage is good, and there is a further effect that it is preferable in terms of construction and appearance.

[Brief description of drawings]

1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a cross sectional view, FIG. 1B is a side view, and FIG.

FIG. 2 is a cross sectional view showing a second embodiment of the present invention.

FIG. 3 is a cross sectional view showing a third embodiment of the present invention.

[Explanation of symbols]

 1 Steel column (shaped steel material) 2 Reinforcement plate made of steel.

Claims (2)

[Claims] 1. A reinforcing plate made of steel for alleviating the structural mechanical deformation around the outer periphery of the structural steel, which is structurally mechanically deformed by an external force received by a building structure in which a plurality of structural steel members are framed. Reinforcement structure of building structure characterized by fixing. 2. The reinforcing structure for a building structure according to claim 1, wherein the shape steel material and the reinforcing plate are attached to each other in a state where respective longitudinal edges are aligned.