钢板-混凝土双连梁受力性能有限元分析  

Mechanical behavior study of steel plate-reinforced concrete dual coupling beams

作　　者：陆铁坚[1] 宋宁[1] 王鹏皓 杨诗龙 

机构地区：[1]中南大学土木工程学院,湖南长沙410075

出　　处：《铁道科学与工程学报》2015年第3期564-569,共6页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(51078354);湖南省自然科学基金重点资助项目(10JJ2034)

摘　　要：运用ABAQUS分别建立钢筋-混凝土双连梁与钢板-混凝土双连梁有限元模型,进行有限元非线性计算,对比分析2种不同模型的极限承载力、破坏性能及延性。研究结果表明:钢板-混凝土双连梁同钢筋混凝土双连梁的破坏形态一样,属于弯剪破坏,可在梁端形成较大的塑性转角,成为剪力墙结构良好的抗震耗能构件;钢板-混凝土双连梁在达到屈服荷载时仍有一定的位移变形,但位移变形的幅度不如钢筋混凝土双连梁大;钢板-混凝土双连梁的延性及耗能性能不如钢筋混凝土双连梁好,但钢板-混凝土双连梁的极限承载力与刚度大于钢筋混凝土双连梁。Reinforced concrete dual coupling beam structural models and steel plate -reinforced concrete dual coupling beam structural models were established respectively by means of ABAQUS software.The nonlinear fi-nite element computations were executed respectively.The ultimate load capacity,failure mode and ductility of the two different finite element models were compared and analyzed.The computation results demonstrate that the failure mode of reinforced concrete dual coupling beams and steel plate -reinforced concrete dual coupling beams belong to bending -shear failure.The steel plate -reinforced concrete dual coupling beams can bear larger plas-tic rotations working as the good structural members of energy dissipation in whole structures;The steel plate -reinforced concrete dual coupling beams still behave the lateral resistance even after the yield of dual beams,but the range of the lateral resistance is less than the reinforced concrete dual coupling beams;both the ductility and the ability of energy dissipation of steel plate -reinforced concrete dual coupling beams are less than that of the reinforced concrete dual coupling beams,but the load capacity and the lateral rigidity are relatively higher.

关 键 词：钢板 -混凝土双连梁 钢筋混凝土双连梁 非线性有限元 最大顶点位移 

分 类 号：TU398.2[建筑科学—结构工程]