JPH09242183A - Earthquake-resistant frame structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly and easily reinforce a frame without works on an existing plane of structure, by fixing a reinforcing frame in a frame structure of a building by use of a steel wedge and arranging the earthquake-resistant wall in the plane of the reinforcing frame. SOLUTION: A reinforcing frame B constituted of vertical frames 3 and horizontal frames 4 assembled with shaped steel materials is fixed by use of steel wedge-shaped fitting blocks 5 in which the axial force is directly transmitted to columns 1 or beams 2, in the plane of the frame structure A provided with a S-structure constituted of the columns 1 and the beams 2 made of shaped steel materials. The fitting blocks 5 are basically attached to the vertical frames 3 and the horizontal frames 4 at the four corners of the reinforcing frame B. And the earthquake-resistant wall 6 or the earthquake-resistant panel is arranged as a earthquake-resistant element in the plane of the reinforcing frame B. In this way, the columns 1 and the beasms 2 are simultaneously reinforced by the reinforcing frame to increase the earthquake-resistant capacity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure, especially an existing structure, which has improved seismic performance.

[0002]

2. Description of the Related Art It has been generally practiced to install a seismic wall or a seismic panel between a new column and a beam. In existing structures, various structures have been proposed and developed in which reinforcing members are added to the columns to improve seismic performance. .

[0003]

However, in the conventional seismic structure, there are few problems in construction in the case of new construction, but construction work is difficult and construction is difficult in many cases for existing structures or partial reinforcement.

The present invention is intended to eliminate the above-mentioned conventional problems in construction by fixing a reinforcing frame within a frame structure composed of columns and beams.

[0005]

The present invention is a pillar of a structure
A frame aseismic structure characterized in that a reinforcing frame composed of a vertical frame and a horizontal frame is fixed through a mounting block in which an axial force is directly transmitted to the pillar or beam in a frame structure composed of beams. , Said structure is S structure, SRC structure or RC
It is a structure and has seismic walls or braced seismic elements in the reinforcement frame.

[0006]

【Example】

Example 1 In this example, the structure is an S structure, and a vertical frame 3 and a horizontal frame 4 in which structural steels are assembled are formed in a frame A plane composed of columns 1 and beams 2 made of structural steel. The reinforcing frame B is fixed. As the fixing means, a steel wedge-shaped mounting block 5 in which the axial force is directly transmitted to the pillar 1 or the beam 2 is used. This mounting block is basically composed of the vertical frame 3 and the horizontal frame 4 at the four corners of the reinforcing frame B. Attach to each. In addition, the earthquake-resistant wall 6 or the earthquake-resistant panel is arranged in the plane of the reinforcing frame B as an earthquake-resistant element.
(Refer to FIG. 1) Example 2 In this example, the structure is an SRC structure, and the columns 1 and the beams 2 are steel frame reinforced concrete.
A reinforcing steel plate 7 is wound around the mounting portion of.

Further, a brace 8 is arranged as a seismic element to be mounted in the plane of the reinforcing frame B. (See FIG. 2) Example 3 In this example, the structure is an RC structure, and the example is substantially the same as the case of the SRC structure. (Refer to FIG. 3) In the details of the mounting block 5 shown in FIGS. 4 (a) and 4 (b), two wedges 10 to be slid between the grooves of the guide metal fitting 9 fixed to the pillar 1 by the anchor bolt are combined and configured. However, as shown in FIGS. 4 (c) and (d), one wedge 10 is previously fixed to the end of the lateral frame 4 by welding, and the other wedge 10 is tapped with a hammer or the like to attach the reinforcing frame B. After that, the two wedges 10 and 10 are integrated by welding. In addition,
The guide fitting 9 serves as a movement preventing fitting that stops the movement of the reinforcing frame B in the front-rear direction after the seismic resistant structure is completed.

[0008]

As described above, according to the present invention, in the existing or newly constructed structure, the reinforcing frame composed of the vertical frame and the horizontal frame is fixed to the frame structure composed of the pillars and beams so as to transmit the axial force. By doing so, it is possible to reinforce the pillars and beams at the same time and improve the seismic performance, and because of the prefabrication and the use of mounting blocks during construction, it is quick and easy without adding any work to the existing frame surface, which shortens the construction period. The mast can be reduced. Furthermore, seismic resistant elements can be easily installed in the reinforcement frame,
Seismic performance can be improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a first embodiment.

FIG. 2 is a longitudinal sectional view of a second embodiment.

FIG. 3 is a vertical sectional view of a third embodiment.

FIG. 4 is a detailed view of a mounting block, (a) is a front view,
(B) is a side view, (c) is a front view of another mounting block,
(D) is the side view.

5 is a cross-sectional view taken along the line I-I of FIG.

6 is a sectional view taken along line II-II of FIG.

7 is a sectional view taken along the line III-III in FIG.

[Explanation of symbols]

A ... Frame, B ... Reinforcing frame 1 ... Pillar, 2 ... Beam, 3 ... Vertical frame, 4 ... Horizontal frame, 5 ... Mounting block, 6 ... Seismic wall, 7 ... Reinforcing steel plate, 8 ... Brace, 9 ... Guide fitting 10 ... wedge.

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical indication location E04B 2/56 622 E04B 2/56 622B 622M 632 632B 632C 632M 642 642H 643 643A 651 651C E04H 9/02 030 1 / 02 301 311 311 321 321E

Claims (3)

[Claims] 1. A reinforcing frame composed of a vertical frame and a horizontal frame is fixed in a frame structure plane composed of columns and beams of a structure through a mounting block for transmitting axial force directly to the columns or beams. A framework aseismic structure characterized by that. 2. The structure is S structure, SRC structure or R structure.
The frame seismic resistant structure according to claim 1, which is a C structure. 3. The frame seismic resistant structure according to claim 1, wherein seismic resistant walls or braced seismic resistant elements are arranged in the reinforcing frame.