框支密肋复合墙梁抗震性能分析

ANALYSES OF SEISMIC PERFORMANCE OF FRAME-SUPPORTED MULTI-RIBBED WALL BEAM

通过对框支密肋复合墙梁在水平低周反复荷载作用下的试验研究，介绍墙梁的主要破坏形态和破坏过程；分析墙体的受力特点；探讨墙体的承载能力、延性、耗能等抗震性能。并根据前期研究成果给出墙梁在弹性阶段、弹塑性阶段、破坏阶段对应不同的力学模型。研究分析结果表明，框支密肋复合墙梁具有良好的组合受力特点，改善了普通墙梁的受力性能。提高了其抗震能力，是一种理想的框支结构受力构件。

Based on the tests of frame-supported multi-ribbed wall beam under low-frequency cyclic loading in this paper, the main failure modes and the main failure processes are studied, the wails＇ force transferring characteristics are analyzed, the walls＇ seismic performance such as bearing capacity, ductility and energy dissipation is discussed. The wails＇ failure process can be described as three stages, elastic stage, elastic-plastic stage and failure stage, which corresponding to different mechanical models. Research results indicate that frame-supported multi-ribbed wall beam , which have the combination bearing characteristics, improve the bearing characteristics and the seismic performance of the wall beam, is a ideal structure form.