Method for testing low-cycle repeated load anti-seismic performance of light steel frame composite wall structure

Abstract

The invention discloses a method for testing the low-cycle repeated load anti-seismic performance of a light steel frame composite wall structure. The method comprises the following steps: preparing aseismic simulation vibration table and a plurality of assembled light steel frame composite wall structure full-scale test pieces, wherein the test pieces have the same structural characteristics anddifferent test pieces have single distinguishing characteristics; arranging a stress strain measuring unit at the same position of each test piece; installing one test piece on the seismic simulationvibration table, setting test conditions which are frequency, amplitude and waveform of the seismic simulation vibration table, applying multiple times of reciprocating cyclic loads to the test pieceto make the test piece repeatedly shake in the front direction and the back direction and form vibration, and recording stress and deformation conditions of the test piece; carrying out seismic performance testing on the other test pieces one by one under the same testing condition, and recording the stress and strain conditions of each test piece; by testing and analyzing the dynamic response characteristics of the test pieces, comparing the seismic performance of the test pieces.

Description

Technical field [0001] The invention relates to the technical field of fabricated light steel frame composite walls, and more specifically to a method for testing the seismic performance of light steel frame composite walls under low-cycle repeated loads. Background technique [0002] Wall panels are divided into internal wall panels and external wall panels according to the architectural function. The internal wall panels are mainly used as load-bearing components and are made of a single material. The external wall panels are generally non-load-bearing wall panels with functions such as heat preservation, heat insulation and waterproofing. , The structure is more complex, and some composite wall panels are made of multiple materials. In order to increase the load-bearing strength of composite wall panels, composite wall panels are usually used with light steel frames. The seismic performance of low-cycle repeated loads is tested. [0003] At present, three methods are mainly use...

AI Technical Summary

Problems solved by technology

[0004] However, the existing low-cycle repeated load seismic performance test method is single, and it is impossible to test and compare composite wall structures of different structures, and the data of low-cycle repeated load seismic performance test is incomplete.

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