带肋双钢板开洞再生混凝土剪力墙力学性能分析  

Analysis of the mechanical behavior of the recycled concrete-filled double skin shear walls with ribbed stiffener and opening

作　　者：刘浜葭[1] 朱立敏 吕学涛 LIU Bangjia;ZHU Limin;LU Xuetao(School of Civil Engineering,Liaoning Technical University,Fuxin 123000,China)

机构地区：[1]辽宁工程技术大学土木工程学院,辽宁阜新123000

出　　处：《铁道科学与工程学报》2018年第7期1810-1818,共9页Journal of Railway Science and Engineering

基　　金：国家自然科学基金青年基金资助项目(51208246);辽宁工程技术大学拔尖人才提升计划资助项目(20130309)

摘　　要：为研究带肋双钢板开洞再生混凝土剪力墙的力学性能,在验证模型有效性的基础上,采用有限元软件ABAQUS对墙体进行模拟。对剪力墙施加单向水平荷载,研究其受力破坏过程,分析开洞率、再生混凝土取代率、洞口形状、钢板强度和轴压比等参数对剪力墙力学性能的影响。研究结果表明:开洞率、废弃混凝土取代率对剪力墙力学性能影响显著,刚度和承载力降低,但峰值位移提高,变形能力有所改善;洞口形状对其力学性能影响较明显,宽扁洞口剪力墙力学性能较差;钢板强度提高,剪力墙的承载力和变形能力都有所增强;随着轴压比的增大,剪力墙承载力虽有所提高,但变形能力降低。In order to study the mechanical behavior of the recycled concrete-filled double skin shear walls with ribbed stiffener and opening, numerical simulation for the shear walls, the accuracy of which was verified, was conducted based on finite element software ABAQUS. The stress failure process of the walls was discussed, and the effects of opening rate, replacement ratio of waste concrete, shape of the hole, strength of the steel plate and axial compression ratio on the mechanical property were taken into account under unilateral horizontal load. The results indicate that the influence of opening rate and replacement rate of waste concrete on the mechanical property of the walls was significant. The stiffness and bearing capacity was reduced, but the deformation capacity was improved due to increased peak displacement. The shape of the hole has obvious influence on mechanical property of the walls, and the mechanical property of the walls with wide flat hole was poor. The bearing capacity and deformation capacity of the walls were enhanced by improving strength of the steel plate. With the increase of axial compression ratio, the bearing capacity of walls was improved, but the deformation capacity was decreased.

关 键 词：开洞 加劲肋 双钢板再生混凝土剪力墙 力学性能 非线性有限元 

分 类 号：TU398[建筑科学—结构工程]