A Method for Seismic Isolation and Strengthening of Existing Building Foundation

Abstract

The application provides an existing building foundation seismic isolation reinforcement method, which belongs to the field of construction engineering. Construct reinforcement piles on the periphery of the existing building; excavate the backfill soil between the existing building and the reinforcement piles in sections, and at the same time construct reinforcement walls in sections between the reinforcement piles, between the foundation structure of the existing building and the reinforcement piles Construct the lateral supports; take the lateral supports, reinforced walls and the foundation structure of the existing building as supports, and construct the first reinforced concrete cast-in-situ slab between the foundation structure of the existing building and the reinforced wall; place the foundation structure at The part below the horizontal lifting beam is replaced with a seismic isolation device; the first reinforced concrete cast-in-place slab and lateral supports are removed. The method forms a reliable temporary support for the foundation structure of the existing building through the lateral supports and the first reinforced concrete cast-in-place slab, so as to ensure the safety of the existing building structure when it encounters a horizontal earthquake during construction, and can realize the foundation structure of the existing building. During the construction period of seismic isolation and reinforcement, the upper house can be used normally and safely.

Description

technical field [0001] The present application relates to the field of construction engineering, in particular to a method for seismic isolation and strengthening of existing building foundations. Background technique [0002] The application of foundation isolation reinforcement technology in the seismic reinforcement of existing buildings is gradually increasing. However, there is still a lack of an applicable method of foundation isolation that does not affect the normal and safe use of existing buildings, resulting in existing buildings during the foundation isolation and reinforcement construction. Neither can be used normally. In order to restore the normal use of the existing buildings as soon as possible, the construction unit requires the construction period of the base isolation reinforcement to be as short as possible. Unreasonably shortening the construction period may affect the normal process and construction quality of the base isolation reinforcement construc...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present application provides a base isolation reinforcement method for existing buildings under normal use conditions, so as to improve the problem that the upper buildings of existing buildings cannot be used normally and safely during the base isolation reinforcement construction

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