Existing building shock isolation reinforcement construction process

Abstract

The invention discloses an existing building shock isolation reinforcement construction process which includes the steps: firstly, constructing a lower buttress; secondly, constructing an upper buttress; finally, cutting a structure column and mounting a shock isolation bearing in a shock isolation layer space. In addition, in order to consolidate normal implementation of the shock isolation reinforcement construction process, a specific upper buttress structure, a shock isolation bearing mounting structure and an underpinning structure are designed. By the aid of the construction process, themounting quality of the shock isolation bearing can be improved, manufacturing cost is reduced, and total construction time is greatly shortened.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic strengthening and transformation of existing buildings, and in particular relates to a construction process for anti-seismic strengthening of existing buildings. Background technique [0002] In the seismic isolation reinforcement project of existing buildings, the general sequence of seismic isolation layer construction is: excavation of earthwork, underpinning support, cutting column concrete, pouring of lower buttress, installation of seismic isolation support, pouring of upper buttress and top Beam slab. Only then can the construction of the upper part of the building decoration project be carried out. This kind of construction can be called "straight-line" construction process. [0003] The existing "straight-line" construction process generally consists of earthwork excavation, construction of underpinning supports, pouring of lower buttresses, installation of supports, pouring of uppe...

AI Technical Summary

Problems solved by technology

[0010] (1) The manufacture of the bracket structure is welded by shaped steel beams and columns, which consumes a large amount of steel, is expensive in materials and labor, and is not easy to reuse;

[0011] (2) Column cutting "wire saw" is slow and expensive, and the cut concrete surface is difficult to meet the flatness requirements for the installation of seismic isolation bearings;

[0012] (3) The support time of the bracket is long and the risk is high

In the event of an earthquake, the safety risk of the building is extremely high;

[0013] (4) High cost

[0015] For a large number of existing primary and secondary school buildings and hospitals, the anti-seismic standards do not meet the national standards. Due to the long construction period of reinforcement and the impact on teaching work, the anti-seismic reinforcement work cannot be carried out

In seismic reinforcement, seismic isolation technology has outstanding technical and economic advantages compared with seismic technology, and the construction period is also greatly shortened, but it still cannot meet the actual needs of teaching and hospitals.

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