摘要
连梁联肢剪力墙在历次地震中屡遭破坏,使震后不可修复或修复成本过高,因此在其跨中附着或替换耗能阻尼器逐渐成为国内外研究的热点。考虑到结构的特殊性,对该类剪力墙的弹塑性分析仍未有较合适的模拟方法。针对耗能连梁联肢剪力墙弹塑性分析的目的和需求,提出一种基于SAP2000多线性塑性连接单元与非线性分层壳单元的数值模拟方法,该方法能够充分考虑阻尼器细部构造,同时保证计算效率和计算准确性。阐释了该方法的思路,提出了多线性塑性连接单元参数的确定方法及分层壳单元的设置建议,给出了静力弹塑性分析算例。计算结果与实体模型结果吻合良好,验证了该方法的适用性。
The coupling beams of shear walls often suffer server damage in earthquakes. To solve this problem,different kinds of coupled shear walls with energy dissipation coupling beams have been developed. However,the complexity of the energy dissipation systems makes it difficult to simulate entire shear walls with common finite element software. A new method that can consider the detail of energy dissipation system as well as maintain the analysis efficiency is proposed by using multi-linear link element and non-linear layered shell element of SAP2000. The main idea of this method is explained,followed by a discussion of how to determine the properties and parameters of multi-linear link element and non-linear layered shell element in this method. An example is introduced in detail,whose results are compared with those of solid element modeling method,and show that that this method is applicable to coupled shear walls with energy dissipation coupling beams.
出处
《建筑结构》
CSCD
北大核心
2013年第S1期1161-1165,共5页
Building Structure
基金
国家科技支撑计划项目(2009BAJ28B03和2011BAK02B02)
