地下结构震害及抗震分析方法综述

摘要

At present, China has begun to develop underground space, especially the subway projects. Usually, the underground structure has good seismic performance, and relatively few earthquake disasters. But if the underground structure is damaged by the earthquake, it will cause serious damage and cannot be repaired. This paper mainly introduces the seismic hazard characteristics of underground structures and compared the methods of seismic analysis of underground structures, such as the reaction displacement method, free field deformation method and so on.%目前,我国开始大力发展地下空间,尤其是地铁工程.通常情况下,地下结构具有良好的抗震性能,地震灾害相对较少.但是地下结构一旦遭受地震破坏,将会带来严重损失并且难以修复.本文主要介绍了地下结构的地震灾害特征以及常用的地下结构抗震分析方法.并且对比分析了反应位移法、自由场变形法和地震系数法等的特点以及不足.