Seismic strengthening structure

A technology for strengthening structures and strengthening columns, used in earthquake resistance, building components, building structures, etc.
CN104508219BActive Publication Date: 2017-07-18JFE CIVIL ENG & CONSTR +1
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
JFE CIVIL ENG & CONSTR
Publication Date
2017-07-18

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Abstract

[Problem] To provide an aseismic reinforcing structure capable of improving the aseismic performance of an existing column without causing a crack in the existing column by a reinforcing column for the existing column and existing beams. [Solution] A reinforcing column (8) is erected at a position outside an existing column (2) located on the building outer wall side of an existing building so as to face the existing column with a space (7) therebetween. The lower portion of the reinforcing column (8) is linked to a reinforcing beam (9L) fastened to an existing beam (1L) integrated with a floor slab (5L). The upper portion of the reinforcing column (8) is linked to a reinforcing beam (9U) fastened to an existing beam (1U) integrated with an upper-floor floor slab (5U). The reinforcing beams (9) fastened to the same existing beam are discontinuous with right and left adjacent reinforcing beams thereof. Even if a difference occurs between the deformation of the reinforcing column and the deformation of the existing column when external force acts, the existing column is little affected by the deformation of the reinforcing column, and hence the occurrence of a crack in the existing column can be reduced to a minimum.
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Description

technical field

[0001] The present invention relates to an anti-seismic strengthening structure, in particular, to an anti-seismic strengthening structure on the outer surface of multi-storey existing buildings of RC structure and SRC structure. Background technique

[0002] Reinforced concrete structures (hereinafter referred to as RC structures) and steel reinforced concrete structures (hereinafter referred to as SRC structures) are used for example Figure 11 The multistory building shown. It goes without saying that the columns and beams are indispensable, and in the frame 33 formed by the columns 31 and beams 32 on the outer wall side, a belly wall / vertical wall, a door, a window (omitted in the figure), etc. are provided. The columns support the load of the upper floor, and the beams are integrated with the floor slabs 34 of each floor.

[0003] When such a building is subjected to a large lateral force due to an earthquake or the like, the upper beam in the frame dev...

Claims

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