文档介绍：双肢剪力墙连梁的抗震性能研究 Study on Seismic Performance of Coupling Beam in Coupled Shear Wall 作者姓名胡启学位类型学历硕士学科、专业结构工程研究方向混凝土结构与砌体结构导师及职称陈道政教授 2013年04月双肢剪力墙连梁的抗震性能研究摘要连梁是剪力墙结构中最重要的构件,它有着内力大、剪切变形大、延性差的特点。一般连梁的刚度较大,带有强连梁的双肢剪力墙不一定具有其应有的连梁先破坏、墙肢后破坏的特征。国内外众多试验证明连梁容易发生剪切型破坏,计算连梁内力时剪切变形的因素不容忽视。普通的配筋形式已经不能满足连梁的抗剪及延性要求,为此国内外专家提出了多种配筋形式来改善连梁的抗震性能。本文主要研究了双肢剪力墙破坏形式的影响因素和各配筋形式连梁的抗剪承载力及破坏形式。本文首先采用数值分析的方法分别计算了两端为一字形墙和两端为T字形墙的双肢剪力墙,研究了结构的混凝土开裂压碎情况及钢筋应力。分析结果显示:两端为一字墙的双肢墙达到极限状态时,墙肢先破坏,连梁不破坏;两端为T字墙的双肢墙达到极限状态时,连梁先发生剪切破坏,墙肢不破坏。根据计算结果本文从概念设计的角度提出了一些建议供结构设计人员参考。此外本文还采用数值分析的方法计算了几个钢筋用量相同但是配筋形式不同的连梁,分析了这些连梁的荷载-位移曲线、混凝土的Mises应力与钢筋应力。分析结果表明:沿连梁高度方向配置分段封闭箍筋的连梁的抗剪承载力最高, 并且表现出较好的变形能力;其次综合配筋形式的连梁不仅抗剪承载力较高而且其变形能力也较好。根据分析结果提出了一些关于连梁配筋的建议供结构设计人员参考。关键词:双肢剪力墙;小跨高比连梁;剪切型破坏;抗剪承载力;塑性铰 Study onSeismic Performance of Coupling Beamin Coupled Shear Wall ABSTRACT Coupling beamsarethe most important component of the shear wall structure, it is characterized by largeinternal forces, large shear deformationandpoor coupling beams have high stiffness, so the shear wallswith a strong coupling beammay not achievethe expectant damagewhich required coupling beams have thefirst addition,domestic and international numerous test showcoupling beamsare prone to have theshear deformation factors can not be ignored when engineerscalculate internal forces of coupling mon reinforcement methods can not meet the requirements of shear strength and ductility of coupling domestic and foreign expertspropose a varioustype of reinforcementto improve the seismic performance of the coupling paper studiedthe influencing factors of the failure modes of coupled shear wall. It also studiedshear capacity and failure modesof coupling beamswith different reinforcementarrangements. In this paper, the finite element methodwas usedto calculatetwo coupled shear walls posed bytwo straight walls posed bytwo T-shapedwalls,andit mainly an