叠合板式剪力墙在低周循环往复荷载作用下的弹塑性耗能分析

发布时间：2018-07-30 06:40

【摘要】：近几年我国在引进国外的叠合板式剪力墙这一新型结构，其发展推广得到政府的大力支持。这种新型结构以其施工周期短、生产工业化程度高、以及在环保方面优势得到了迅速的发展。但是像我国这种地震活动较为频繁的国家，就必须考虑其在地震作用下的抗震性能。本文针对叠合板式剪力墙结构，采用非线性动力推覆理论分析研究。并利用实验数据和非线性有限元软件ABAQUS对其施加低周循环往复荷载来模拟地震作用，分析研究结构的抗震性能。主要的研究内容有以下几点： 1.相同的低周期循环往复荷载作用下，对比分析新型的叠合板式剪力墙和普通的全现浇剪力墙在加载过程中所表现出的受力性能的差异，其中包括屈服点以及承载力峰值点。 2.在不同的轴压比下的叠合板式剪力墙在相同荷载作用下在力学性能上的差异。 3.叠合板式剪力墙与普通全现浇剪力墙在弹塑性阶段的抗震性能的对比分析，，主要从结构的位移延性、刚度退化以及耗能能力方面来对比分析。主要的性能参数指标包括荷载位移滞回曲线、骨架曲线、位移延性系数等。 4.对比分析叠合板式剪力墙的现浇部分和预制板部分在各个阶段破坏状态的差异，以及开裂的先后顺序。
[Abstract]:In recent years, the development and popularization of laminated plate shear wall, a new type of structure, has been greatly supported by the government. The new structure has been developed rapidly because of its short construction period, high degree of production industrialization and environmental protection advantages. But in countries such as China, where seismic activity is more frequent, seismic behavior must be considered. In this paper, nonlinear dynamic nappe theory is used to analyze the laminated plate shear wall structure. Using the experimental data and nonlinear finite element software ABAQUS to apply low cycle cyclic reciprocating load to the structure to simulate the seismic action and to analyze and study the seismic behavior of the structure. The main research contents are as follows: 1. Under the same low cycle cyclic load, the difference of mechanical performance between the new type of composite plate shear wall and the common fully cast-in-place shear wall in the loading process is compared and analyzed. It includes yield point and bearing capacity peak point. 2. 2. The difference of mechanical properties of laminated plate shear wall under the same load under different axial compression ratio. 3. The seismic performance of superimposed slab shear wall and common cast-in-situ shear wall in elastic-plastic stage is compared and analyzed mainly in terms of displacement ductility stiffness degradation and energy dissipation capacity of the structure. The main performance parameters include load-displacement hysteretic curve, skeleton curve, displacement ductility coefficient and so on. 4. The difference of failure state between cast-in-place and prefabricated shear wall and the sequence of cracking are analyzed.
【学位授予单位】：安徽建筑大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU313

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