摘要
根据深圳地铁抗震设计需要，对深圳地铁的３种典型断面，采用释放荷载方法进行了平面有限元静力计算，确定初始应力场；采用子空间迭代法进行了振型计算，确定合理的积分步长。在此基础上，运用Ｎｅｗｍａｒｋ隐式时间积分法对地铁的３种典型断面进行了地震反应分析，确定了在地震荷载作用下衬砌结构的薄弱部位及其相应的位移和应力。计算结果为深圳地铁的抗震设计提供了依据。
According to the anti-seismic design of Shenzhen subway, the seismic responses of three typical cross-sections are analyzed with Newmark step-by-step time integration method. The analysis is based on the results of static finite element analysis by using release loading method and those of vibration analysis to define the rational time step for sub-space iterations. The weak portions of the liner under seismic loading are determined.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2001年第4期555-559,共5页
Journal of Southwest Jiaotong University
