反应位移法在地铁车站抗震计算中的应用探讨

针对我国目前地铁车站抗震计算的现状,介绍反应位移法在地铁车站抗震计算中的基本原理。结合常州地铁1号线定安路站工程实例,通过利用EERA软件对地层位移及剪应力的计算,考虑地层与车站结构间的相互作用,提供一种与实际更为接近的计算方法,减少计算过程中参数间的相互转化,便于工程实际应用。计算结果表明,车站层间位移能满足规范限值的要求,结构受力合理,结构尺寸满足要求,计算结果可靠。

Application of Response Displacement Method to Seismic Calculation of Subway Station

Based on generalization of the existing seismic calculation methods for subway station,the fundamentals of response displacement method are introduced. Meanwhile,the displacement response method is discussed in combination with Ding Anlu subway station of the Changzhou subway line 1. The displacement and shear stress are calculated through EERA software,the interaction between soil layer and subway station is addressed,a method even closer to the practical engineering is provided,and thetransformation of parameters are reduced in the process of calculation. Calculation results show that the relative displacement can meet the requirement of the standards,the structure system is reasonable in terms of stresses,the structure size is appropriate,and the calculation results are reliable.