Method for differential settlement of buildings self-adapting groundwork and its structure

Abstract

The invention discloses a building self-adaptive foundation uneven settlement method and its structure, which are suitable for frame structure buildings in areas with large uneven settlement caused by underground mining. A frame support with relative movement is connected between the reinforced concrete foundation and the frame column foot, the base of the frame support is fixed with the reinforced concrete foundation, and the top seat of the frame support is fixed with the frame column foot. When uneven settlement occurs, the reinforced concrete foundation sinks, and the frame support is elongated along with it. The automatic elongation of the frame support is used to eliminate the influence of uneven settlement, thereby effectively reducing the impact of uneven foundation settlement on frame structure buildings. damage and enhance the reliability of the overall structure. The frame support has the self-adaptive performance of automatic elongation with the settlement of the reinforced concrete foundation, and has high sensitivity. Its method and structure are simple, easy to install and disassemble, and the project cost is low. High, and can be replaced and maintained at any time.

Description

technical field [0001] The invention relates to a building self-adaptive foundation uneven settlement method and its structure, and is especially suitable for frame structure buildings in large uneven subsidence areas caused by underground mining, and also suitable for frame structure buildings on other uneven settlement foundations. Background technique [0002] Frame structure buildings are widely used in our country, but the performance of pure frame structure against uneven deformation of foundation is poor, and uneven settlement will cause large additional internal force and additional deformation of beams and columns of frame structure. Therefore, Section 5.3 of my country's "Code for Design of Building Foundations" (GB50007-2002) gives relevant restrictions on the allowable value of building foundation deformation, and Article 5.3.3 stipulates that for frame structures and single-story bent structures, adjacent column foundations subsidence control. It limits the appl...

AI Technical Summary

Problems solved by technology

Limits the application of frame structure buildings on foundations with uneven settlement deformation

[0003] The current measures to reduce uneven settlement are, on the one hand, to avoid uneven settlement of the foundation from the perspective of building layout, and on the other hand, to increase the stiffness of the foundation, increase the cross-section of beams and columns, and set up foundation beams in the structure. These two measures are both Taking "hard resistance" as the leading idea to reduce uneven settlement, although it can play a certain role, but its structure is complex and difficult to assemble and disassemble, which greatly increases the cost of the building

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