内置H型钢再生混凝土钢管柱抗震性能有限元分析  

Finite Element Analysis of Seismic Performance of Recycled Concrete Steel Tubular Columns with Encased H-Shaped Steel

作　　者：袁凯 邓夕胜[2] 何明泽 许帅[2] 梁涛 李进 YUAN Kai;DENG Xisheng;HE Mingze;XU Shuai;LIANG Tao;LI Jin(Guangyuan City Development Group Co.,Ltd.,Guangyuan 628017,China;School of Civil Engineering and Geomatics,Southwest Petroleum University,Chengdu 610500,China;Leshan Electric Power Co.,Ltd.,Leshan 614000,China)

机构地区：[1]广元市城市发展集团有限公司,四川广元628017 [2]西南石油大学土木工程与测绘学院,四川成都610500 [3]乐山电力股份有限公司,四川乐山614000

出　　处：《混凝土与水泥制品》2023年第6期40-47,共8页China Concrete and Cement Products

基　　金：四川省科技厅国际合作项目(2020YFH0127);广元城投集团科技基金项目(GYCT-KY-202101)。

摘　　要：为研究内置H型钢再生混凝土钢管柱的抗震性能,利用ABAQUS有限元分析软件研究了6根试验柱在低周反复荷载作用下,再生混凝土强度、再生粗骨料取代率和型钢配钢率对其破坏形态、滞回性能、骨架曲线、耗能能力和刚度退化曲线的影响规律。结果表明:试验柱均呈弯曲型破坏,滞回曲线均较为饱满,刚度退化较慢,表现出良好的耗能能力以及抗震性能;试验柱的峰值承载力和耗能能力随再生混凝土强度的提高而提高,随再生粗骨料取代率的提高而降低;随着型钢配钢率的增加,试验柱的承载力和耗能能力均显著提高;各试验柱的位移延性系数均在5.0~6.0,具有良好的弹塑性变形能力。In order to study the seismic performance of recycled concrete steel tubular columns with encased H-shaped steel,six testing column models were designed by the finite element analysis software ABAQUS,and the effects of the recycled concrete strength,replacement rate of recycled coarse aggregate and steel ratio of section steel on the failure mode,hysteretic performance,skeleton curve,energy dissipation capacity and stiffness degradation curve were analyzed.The results show that the testing columns all show bending failure,hysteresis curves are full,stiffness degradate slowly,energy dissipation and seismic performance are good.The peak bearing capacity and energy dissipation capacity of composite short columns increase with the increase of recycled concrete strength and decrease with the increase of replacement rate of recycled coarse aggregate.With the increase of steel ratio of section steel,the bearing capacity and energy dissipation capacity of composite short columns are significantly improved.The displacement ductility coefficients of each testing columns is between 5.0 and 6.0,which has good elastic-plastic deformation capacity.

关 键 词：H型钢 组合柱 钢管 抗震性能 再生混凝土 取代率 ABAQUS有限元分析软件 

分 类 号：TU528.7[建筑科学—建筑技术科学]