钢板剪力墙结构基于性能的塑性设计方法研究

发布时间：2018-07-27 20:42

【摘要】：依据现行设计规范设计的钢板剪力墙结构,在罕遇地震作用下的非弹性性能是难以预测和控制的。为满足对高效可靠设计的需求,该文提出了钢板剪力墙结构基于性能的塑性设计方法,并通过修正楼层剪力考虑结构的P-Δ效应。选用预定的目标位移和破坏模式作为结构的两个关键性能指标。根据能量守恒原理,计算结构在给定地震作用下的设计基底剪力;采用能够反映结构在罕遇地震下楼层剪力分布状态且考虑高阶振型影响的侧向力分布模式,确定楼层剪力;采用塑性设计方法设计内嵌钢板以便达到预期的破坏模式和性能。为验证方法的有效性,采用此方法对一栋10层钢板剪力墙结构进行了设计,并采用静力非线性分析法和动力弹塑性方法对结构进行分析,为钢板剪力墙结构基于性能的塑性抗震设计提供一定依据。
[Abstract]:It is difficult to predict and control the inelastic properties of steel plate shear wall structures under rare earthquake. In order to meet the requirements of high efficiency and reliability design, a performance-based plastic design method for steel plate shear wall structures is proposed, and the P- 螖 effect of the structure is considered by modifying the floor shear forces. The target displacement and failure mode are selected as two key performance indexes of the structure. According to the principle of conservation of energy, the design base shear force of structure under given earthquake is calculated, and the lateral force distribution mode, which can reflect the distribution state of floor shear force under rare earthquake and consider the influence of high-order mode, is adopted to determine the floor shear force. Plastic design method is used to design embedded steel plate in order to achieve the expected failure mode and performance. In order to verify the validity of the method, a 10 story steel plate shear wall structure is designed, and the static nonlinear analysis method and dynamic elastoplastic method are used to analyze the structure. It provides a basis for the performance-based plastic seismic design of steel plate shear wall structures.
【作者单位】：西安建筑科技大学土木工程学院;
【基金】：国家自然科学基金项目(51178381);国家自然科学基金项目(51408623)
【分类号】：TU392.4

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