大跨度型钢混凝土转换梁受力分析及补强设计  

Stress analysis and reinforcement design of large-span steel-concrete transfer beam

作　　者：吴再炉 郭伟奇 WU Zailu;GUO Weiqi(Pingjiang County Education Bureau,Yueyang 414599,Hunan,China;School of Civil Engineering,Hunan University,Changsha 410082 Hunany China)

机构地区：[1]平江县教育局,湖南岳阳414599 [2]湖南大学土木工程学院,湖南长沙410082

出　　处：《工程建设》2022年第3期43-47,72,共6页Engineering Construction

摘　　要：为研究大跨度型钢混凝土转换梁结构受力特点以及节点的破坏模式与薄弱部位,本文对梁柱节点处进行受力分析,并按照“强节点、弱构件”的设计原则对节点处进行补强设计;通过运用ABAQUS软件建立有限元模型,对大跨度型钢混凝土转换梁模型在荷载基本组合、荷载标准组合下的承载能力和挠度进行分析。结果表明:承载力、挠度均满足正常使用要求;补强设计后节点应力显著降低,最大应力由节点转移至构件,结构承载能力有效提升。In order to study the structural force characteristics of large span steel-concrete transfer beam structures and the damage modes and weak areas of nodes,force analysis at the nodes of beams and columns are conducted,and the reinforcement design at nodes is carried aut based on the design principle of“strong nodes and weak members”.The finite element model is established by using ABAQUS software,and the bearing capacity and deflection of the large-span steel-concrete conversion beam model under the basic load combination and the load standard combination is analyzed.The results show that:the bearing capacity and deflection meet the normal use requirements;the node stress is significantly reduced after the reinforcement design,the maximum stress is transferred from the nodes to the member,and the structural bearing capacity is effectively improved.

关 键 词：型钢混凝土 大跨度 转换梁 补强设计 有限元分析 

分 类 号：TU745.2[建筑科学—建筑技术科学]