大型地下式调蓄池两种抗震计算方法对比分析  

Comparative Analysis of Two Seismic Calculation Methods for Large Underground Storage Tank

作　　者：邹振 孙安 Zou Zhen;Sun An(Guangzhou electric power Engineering Design Institute Co.,Ltd.,510220,China;Guangdong Architectural Design and Research Institute Group Co.,Ltd.,Guangzhou 510010,China)

机构地区：[1]广州市电力工程设计院有限公司,510220 [2]广东省建筑设计研究院集团股份有限公司,广州510010

出　　处：《特种结构》2024年第6期101-106,共6页Special Structures

摘　　要：地下结构抗震理论日趋成熟,常用的抗震设计计算方法有4种,但目前地下水池抗震设计仍然以《室外给水排水和燃气热力工程抗震设计规范》(GB 50032—2003)提出的拟静力法为主。本文以深圳市某调蓄池工程为例,详细对比了拟静力法和反应位移法地震作用内力计算结果。发现随着场地抗震设防烈度的提高,两方法计算的结构地震内力偏差越来越大,但池壁最大弯矩比值基本维持在1.30~1.50之间,该结果有利于简化反应位移法壁板配筋设计计算。提出反应位移法地层适用条件,可为同类设计提供参考。The seismic design theory for underground structures has become increasingly mature,and four calculation methods have been proposed while the seismic design of underground storage tanks is still mainly based on the quasi-static method proposed by Code for seismic design of outdoor water supply,sewerage,gas and heating engineering.In this study,a case analysis of a stormwater retention basin project in Shenzhen was conducted,comparing the seismic stress calculation results of the quasi-static method and the response displacement method.It was found that as the seismic fortification intensity of the site increased,the discrepancy in seismic internal forces calculated by the two methods became larger.However,the ratio of the maximum bending moment of the pool wall remained stable between 1.30 and 1.50.This result is beneficial for simplifying the reinforcement design calculations of wall panels using the response displacement method.The applicable conditions for the response displacement method were proposed,which could provide a reference for similar designs.

关 键 词：地下调蓄池 拟静力法 反应位移法 地震内力 

分 类 号：TU991.34[建筑科学—市政工程]