（启迪设计集团股份有限公司， 苏州 215021）

［摘要］地下变电站属于单建式地下建筑，按规范宜采用空间结构分析计算模型并采用土层时程分析法计算。本工程采用土层时程分析法进行地震作用计算，并将所得计算结果与反应谱法进行对比分析；由于电气设备布置的要求，各层楼板均开有较大的洞口，本工程采用增加布置剪力墙的方式，并采用三维有限元计算模型进行整体计算，提出相关问题的处理方法，为今后类似项目提供了参考资料。

［关键词］地下变电站； 土层时程分析法； 楼板开洞； 地下结构设计

中图分类号：TU375文献标识码：A文章编号：1002-848X(2018)19-0036-04

Structural design of an underground electricity station

Zhu Yi， Zhang Min， Wei Xiang， Zhu Liming

(TusDesign Group Co.,  Ltd., Suzhou 215021, China)

Abstract:The underground electricity station belongs to the category of dry single underground building. The spatial structure model should be adopted and the soil layer time-history analysis method should be used according to the current specification. In this project ,the soil layer time-history analysis method was used for calculating the effect of the earthquake.The results were compared with the results of the response spectrum method. Due to the layout requirements of electrical equipment, each floor has a large hole mostly. The method of increasing the shear walls was adopted and the 3D finite element model was used. The solutions of related problems were proposed, which provides a reference for similar projects in the future.

Keywords:underground electricity station; soil layer time-history analysis method; floor with opening; underground structure design

作者简介：朱怡，硕士，高级工程师，一级注册结构工程师，Email:yi.zhu@siad-c.com。