基于OpenSees的预制开洞内嵌钢板装配式剪力墙抗震性能分析

发布时间：2018-05-25 21:21

本文选题：装配式剪力墙 + 内嵌钢板　；参考：《天津大学学报(自然科学与工程技术版)》2015年S1期

【摘要】：针对装配式剪力墙结构中预制内墙构件存在的自重大、构件本身刚度大及由此带来的构件运输吊装压力大、节点连接要求高等问题,本文通过引入钢板剪力墙耗能部件的概念,开发出一种新型装配式剪力墙构件:预制开洞内嵌钢板装配式剪力墙.通过有限元分析程序Open Sees研究了该构件的滞回耗能能力,探讨影响其抗震性能的参数.分析表明,低剪跨比的剪力墙墙体开洞并在洞口内嵌薄钢板处理之后,结构的延性和滞回耗能相对于普通剪力墙有较大的提高,同时承载力同比降低幅度小于15%;内嵌钢板高厚比、墙体开洞口尺寸对该新型剪力墙构件抗震性能具有较大的影响;为使周边墙肢与内嵌钢板刚度匹配更好发挥钢板耗能能力,建议钢板高厚比不小于150;周边墙肢连梁设计成为壁式框架体系能提早发挥内嵌钢板的屈曲后拉力场,增加结构的耗能能力.
[Abstract]:In order to solve the problems of self-importance of prefabricated inner wall members in prefabricated shear wall structures, the stiffness of the members themselves, the high lifting pressure of the components and the high connection requirements of the joints, the concept of energy-consuming components of steel plate shear walls is introduced in this paper. A new type of prefabricated shear wall is developed. The hysteretic energy dissipation capacity of the component is studied by the finite element analysis program Open Sees, and the parameters affecting its seismic performance are discussed. The analysis shows that the ductility and hysteretic energy consumption of the shear wall with low shear span ratio is greatly improved compared with that of the common shear wall after the opening of the wall and the treatment of thin steel plate embedded in the hole. At the same time, the bearing capacity is lower than 15%, the ratio of height to thickness of embedded steel plate, the size of wall opening has a great influence on the seismic performance of the new shear wall member, in order to make the peripheral wall limb and the stiffness of embedded steel plate match, the energy dissipation ability of steel plate is better developed. It is suggested that the ratio of height to thickness of steel plate should not be less than 150, and the design of peripheral wall coupling beam can give full play to the post-buckling tension field of embedded steel plate early, and increase the energy dissipation capacity of the structure.
【作者单位】：天津大学建筑设计规划研究总院;天津大学建筑工程学院;中船第九设计研究院工程有限公司;
【基金】：天津市应用基础与前沿技术研究计划重点项目(2014JCZDJC40000) 天津市建设系统科学技术发展计划资助项目(2013-11)
【分类号】：TU392.4;TU352.11

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