A method and structure of embedding high-strength self-stressed concrete trusses to strengthen shear walls

Abstract

The invention discloses a method and structure for reinforcing a shear wall by embedding a high-strength self-stressed concrete truss. The vertical bearing capacity and horizontal bearing capacity ofthe original shear wall are calculated by determining the boundary range of an unqualified area of the concrete strength in the original shear wall, the strength of concrete in the unqualified area and the strength of concrete in a qualified area, according to calculation and analysis results, a structural form of the embedded high-strength self-stressed concrete truss, an embedding position, thesize of the high-strength self-stressed concrete truss and the strength grade of high-strength concrete are determined, the part of the original shear wall to be embedded with the high-strength self-stressed concrete truss is chiseled away, through the treatment of a joint surface, formwork erecting after implanting of joint bars and pouring of the high-strength self-stressed concrete, the embedded high-strength self-stressed concrete truss is formed, and a reinforced shear wall meets the requirements of structural rigidity and bearing capacity. According to the method and structure for reinforcing the shear wall by embedding the high-strength self-stressed concrete truss, the wall thickness is not increased, the concrete excavation amount is small, and a remaining wall body can provide abearing capacity for reinforcement construction and later use.

Description

technical field [0001] The invention relates to the field of building structure engineering reinforcement, in particular to a method and structure for embedding a high-strength self-stressed concrete truss to reinforce a shear wall. Background technique [0002] Concrete shear walls are walls that mainly bear horizontal loads and vertical loads caused by wind loads or earthquake loads in building structures. The shear wall is an important load-bearing component in the building structure, and its bearing capacity is of great significance to the safety of the building structure, so it is very important to ensure the bearing capacity of the shear wall. [0003] During the concrete pouring process of concrete shear walls, due to improper control or other reasons, sometimes beam-slab concrete is poured into the shear walls, or due to insufficient grades of concrete materials, some or all areas of the concrete shear walls are damaged. The strength cannot meet the design requireme...

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Problems solved by technology

These methods have more or less shortcomings such as large amount of engineering, complicated construction, high cost, and the need to increase the thickness of concrete shear walls.

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