【摘要】 提出了以横向应变传递率STC模型为基本出发点的地铁结构横向应变传递简化计算方法。以拟静力方法为基本出发点,以提出的土层横向应变率简化计算公式和常规一维土层分析为基础,给出了计算矩形地下结构地震响应简化计算方法,采用实例验证了方法的可靠性和可行性。结果表明,STC简化方法的结果能合理解释神户车站严重破坏的现象,与他人有限元计算的附加弯矩和剪力值分布趋势基本一致,与他人有限元计算得到的结构最大地震动力反应出现部位一致,定量结果的差别也在工程许可范围内。更多还原

【Abstract】 A simplified method for calculating the lateral-strain-transform of subway structures based on strain transform coefficient(STC) model is proposed herein.Beginning with a pseudo-static method and based on the simplified calculation formula for lateral strain transform and one dimensional soil response analysis,the simplified method for seismic response of rectangular underground structures is presented.The reliability and feasibility of the method is validated by a real case.The results show that the STC simplified method can reasonably explain the serious damage of Dakai subway station caused by earthquake happened in 1995 Kobe of Japan.The additional moment and shear distribution are consistent by using finite element method and the simplified method.The maximum seismic dynamic response of the structures by the simplified method is consistent with the finite element method,and the quantitative deviation of which is acceptable in engineering practice.更多还原