摘要
通过数值分析模拟5个高宽比不同的钢管加强格构式墙试件进行低周往复循环加载情况,并对滞回曲线、骨架曲线和变形能力等对比分析,结果表明所有试件的延性系数均大于3,表明钢管加强格构式墙体具有良好的抗震性能,随着高宽比的减小,极限承载力与耗能能力增加趋势越来越明显,同时,结构延性系数下降,但曲线下降趋于平缓。高宽比在1. 0时,结构构件综合抗震性能表现优异,可以通过调整钢管加强格构式墙体的高宽比优化其力学性能,可供实际工程参考。
Numerical analysis is carried out to simulate the low-cycle reciprocating cyclic loading of five steel-reinforced lattice wall specimens with different aspect ratios. Comparing the hysteresis curve,skeleton curve and deformation ability,the results show that the ductility coefficients of all the specimens are more than 3,which indicates that the steel-reinforced lattice wall has good seismic performance. With the decrease of the aspect ratio,the increasing trend of the limit bearing capacity and energy consumption capacity is more and more obvious. At the same time,the structural ductility coefficient decreases,but the curve decline tends to be gentle.When the aspect ratio is 1. 0,the structural members have excellent comprehensive seismic performance. The mechanical properties of the lattice wall can be optimized by adjusting the steel tube to adjust the aspect ratio of the lattice wall,which can be used as a reference for practical engineering.
作者
曹启坤
尹航
杨胜光
Cao Qi-kun;Yin hang;Yang Sheng-guang(College of Civil Engineering,Liaoning Technical University,Fuxin 12300,China)
出处
《工程抗震与加固改造》
北大核心
2018年第5期7-13,21,共8页
Earthquake Resistant Engineering and Retrofitting
作者简介
曹启坤(1974-),男,辽宁喀左人,博士,副教授,主要从事钢筋混凝土结构的设计与检测加固等方面的研究。
