RC框架-框桁式复合墙抗震性能试验研究及有限元分析

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中图分类号： TU398+.3 文献标志码：A 文章编号：1000-4939（2025）06-1309-11

Abstract：Against the characteristic of large deformation for reinforced concrete （RC）frame，RC frameframe truss composite wall（FTCW） structure was proposed，and two reinforced concrete （RC） frameframe truss composite wall （FTCW） specimens with a scale of 1：2 were implemented for cyclic loading test.The seismic performance of bearing capacity，ductility and stiffness degradation were analyzed by the test phenomenon，hysteresis curves，backbone curves and stiffess degradation curves.The simulation of cyclic loading test was conducted by ABAQUS software，and the results were compared with the test results.The influence of the amount of infill FTCW，rebar ratio of RC frame columns，axial compression ratio， concrete strength，embedded angle steel and the layout direction of FTCW were analyzed.The test behaviors showed that a multistage energy consuming system that FTCW worked before RC frame and the internal diagonal struts worked before the outer frame inside the FTCW，forming a multistage energy consumption system for the design purpose of earthquake resistant structures.The numerical analysis results showed that the most effective way to improve the bearing capacity of RC frame-FTCW was to increase the amount of filled FTCW，followed by increasing the rebar ratio of frame columns，and the improvement of increasing the concrete strength or adding angle steel forthe internal diagonal struts were smaller.The improvement of axial compression ratio on the bearing capacity was unnoticeable.In addition，the layout direction of FTCW was significant，and the number and position of FTCW should be symmetrically arranged.

Key words：reinforced concrete（RC） frame-frame truss composite wall（FTCW）;cyclic loading test;multistage energy consuming system ; numerical analysis

框桁式复合墙（frametrusscomposite wall，FTCW）是一种新型结构形式的墙体[1]，主要由外框和内斜撑构成。（剩余12877字）