【作者】 裘博敏；

【导师】 李兴代；

【作者基本信息】 西南交通大学 ， 结构工程， 2010， 硕士

【摘要】 短肢剪力墙是介于异形框架柱和一般剪力墙之间的一种建筑结构体系,这种结构形式能使建筑取得良好的功能效果。已有的实践证明,在高层住宅中推广短肢剪力墙结构体系,具有重大的经济和社会效益。因此,短肢剪力墙结构已成为10—25层高层住宅的主要结构形式之一。本文根据有限元理论和计算机仿真原理的基本思路,利用有限元分析软件ANSYS,对短肢剪力墙计算模型的承载能力、变形能力及延性进行了推覆模拟计算；并对其影响因素进行优化分析。首先,采用ANSYS中的三维实体单元SOLID65建立了短肢剪力墙有限元分析模型,通过改变模型的混凝土强度等级、跨高比、轴压比和墙肢截面高厚比等影响因素,对短肢剪力墙试件进行计算,用分组比较的方法分析了各影响因素对模型的承载能力、变形能力及延性性能的影响,以及产生此影响的原因,进而进行优化分析,找出各影响因素的优化值。同时还对短肢剪力墙模型的破坏过程进行了分析。其次,对单层短肢剪力墙和高层短肢剪力墙进行了地震弹塑性地震反应分析,分析了连梁跨高比、肢厚比等因素对结构的影响。通过对短肢剪力墙的静力分析和在地震作用下的弹塑反应的分析,为短肢剪力墙的设计提供一些建议和依据。更多还原

【Abstract】 Short-limbed wall (SLW) is an intergradation of structure style between erose-section-column frame and conventional shear wall structure. This kind of Structure can gain better economical benefit and excellent structural function. It is good to energy saving as well. Short-limbed wall (SLW) has become one of the most important structure forms for residence projects with10-25 stories.According to the finite element theory and the computer simulative principle basic mentality, using finite element analysis software ANSYS, the load capacity, deformation capacity and ductility of short- limbed wall are tested by push-over simulative test, and carried on the optimized analysis to its influential factors.Firstly,3D unit SOLID65 is used in ANSYS to establish the finite element analysis model of short- limbed wall. Then changing some influential factors such as concrete strength rank、couple beams span to depth ratio、ratio of axial compressive force and sectional depth-thickness ratio, the simulative test is carried on the short-limbed wall. Though grouping comparison method the paper analyzes the influence of each factor to the load capacity, deformation capacity and ductility, as well as have the reasons why it leads to the influence, then carries on the optimized analysis, discovers the optimized value of each influential factor, and does the analysis to the broken process of short- limbed wall.Secondly, this paper, seismic analysis of elastic-plastic seismic response is done on single-layer short- limbed wall and the upper short- limbed wall. In seismic analysis, The element is analyzed with different parameters, such as the coupling beams span-height ratio, limb thickness ratio and so on. The influences of these parameters are studied.Through the static analysis and seismic response under the action of elastic-plastic analysis, this paper provides some suggestions and the basis for the design of short-limbed wall.更多还原