能力谱法在腋撑转换剪力墙结构抗震性能设计中的应用

按照刚度等效、内力等效的原则,对剪力墙结构进行模拟框架等效代换,从而能够通过分析杆件单元塑性铰出现的特点、次序来研究剪力墙结构的弹塑性性能。针对高层建筑转换结构使用中的要求,提出了一种腋撑式的新型梁式转换结构,并对该种结构进行了剪力墙结构算例的Push-over分析。采用能力谱法评估了该结构的整体抗震性能,表明该方法是对带转换层剪力墙结构进行弹塑性分析、评估结构抗震安全性的一种有效方法。

The Application of Capacity Spectrum Method in Seismic Performance Design for Transfer Shear Wall Structure with Haunch Brace

According to the principle of the equivalent stiffness and internal forces, the simulated framework is substituted for the shearwall structure in this paper. Thus it can be able to study the elasto-plastic properties of shearwall structure by analyzing the feature and order of the plastic hinges of the member unit. Against the requirements for transfer structure in tall building, a new beam-type transfer structure with haunch brace is proposed and Push-over analysis on an example structure against such a kind of shearwall structure is conducted. The seismic performance of the structure is evalated using Capacity Spectrum Method. The results show that Capacity Spectrum Method is an effective method to conduct Push-over analysis and assess the seismic performance for the shearwall structure with transfer story.