【摘要】 借鉴Pushover分析和混凝土构件损伤评估的基本思想对结构进行性能评估。通过能力谱方法,得出罕遇地震作用下结构的层间位移,采用Park-Ang模型计算结构各层的损伤指标,并结合非线性静力分析的结构构件塑性铰的发展、分布情况对结构的性能水平进行评估。本文方法利用结构滞回耗能与结构最大位移的关系求解结构的滞回耗能,极大地提高了计算效率,具有广阔的工程应用前景。更多还原

【Abstract】 Based on the nonlinear static(Pushover) analysis method and random vibration theory,the frame structure is analyzed in this paper.The capacity spectrum method of performance evaluation can compute the displacement and damnification in each floor under the rare earthquake.The Park-Ang model is applied to estimate the damage index of structures under seismic action and combined with the nonlinear static analysis method,the seismic performances of structures are evaluated synthetically.The method developed can simultaneously consider the effects of the maximum deformation and the hysteretic energy,so it can be widely used in engineerings.更多还原