沈阳工业大学学报2011，Vol.33Issue(4)：445-450,467,7.
基于能量分析的复阻尼模型结构抗震性能
Earthquake resistant performance of structure with complex damping model based on energy analysis
摘要
Abstract
Since the damping models used in current dynamic analysis could not describe the unknown material nonlinear energy dissipation in structures, the seismic energy equation for multiple degrees of freedom （MDOF） complex damping system was derived based on the stress related complex damping theory. The structure seismic response and material energy dissipation rule of the complex damping model were studied, and the material time varying loss factor of components and structures was calculated. The results show that in the total earthquake input energy, the material damping energy dissipation accounts for a large proportion, and monotonously increases with prolonging time. The material damping energy dissipation as well as its change rate, kinetic energy and strain energy of the structure all increase with increasing the input energy. The calculation of the loss factor indicates that compared with the conventional method, the material loss factor with adopting time varying form rather than constant form can exhibit the material damping effect more precisely.关键词
结构工程/抗震性能/能量分析/复阻尼/材料阻尼/损耗因子/总输入能量/多自由度系统Key words
structure engineering/earthquake resistant performance/energy analysis/complex damping/material damping/loss factor/total input energy/multiple degrees of freedom（MDOF） system分类
建筑与水利引用本文复制引用
张辉东,王元丰..基于能量分析的复阻尼模型结构抗震性能[J].沈阳工业大学学报,2011,33(4):445-450,467,7.基金项目
国家自然科学基金资助项目 （）
中国博士后科学基金资助项目（20080430308）. （）
