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（啟迪設(shè)計(jì)集團(tuán)股份有限公司， 蘇州 215021）

［摘要］采用MIDAS GTS及SAP2000等有限元軟件，對(duì)某大型地下空間進(jìn)行結(jié)構(gòu)抗震分析與設(shè)計(jì)。采用基于平面的二維土層-結(jié)構(gòu)時(shí)程分析法與考慮土層與結(jié)構(gòu)相互作用的彈性連接空間模型的反應(yīng)位移法、彈性時(shí)程分析法及反應(yīng)譜法，對(duì)地下空間結(jié)構(gòu)進(jìn)行計(jì)算分析對(duì)比。通過(guò)對(duì)結(jié)構(gòu)地震響應(yīng)及主要受力部位內(nèi)力進(jìn)行比較表明，空間模型的反應(yīng)譜法計(jì)算結(jié)果能夠包絡(luò)另外三種方法的計(jì)算結(jié)果，該方法可供類(lèi)似大型地下空間的抗震設(shè)計(jì)參考。

［關(guān)鍵詞］地下空間； 抗震分析； 土層-結(jié)構(gòu)時(shí)程分析法； 反應(yīng)譜法； 反應(yīng)位移法； 彈性時(shí)程分析法

中圖分類(lèi)號(hào)：TU375, TU352文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)20-0066-07

Analysis on seismic design method of a large underground structure

Zhang Min, Yang Yukun, Xu Wenxi, Zhu Yi, Zhang Qin, Ye Jia, Wu Wenchun

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

Abstract:The finite element softwares of MIDAS GTS and SAP2000 were used to conduct structural seismic analysis and design on a large underground space structure. Several calculating and analysis methods were adopted on the structure and results were compared, including the plane-based two-dimensional soil-structure time-history analysis method, response displacement method, the elastic time-history analysis method and the response spectrum method based on the elastic connection space model considering the interaction between the soil layer and the structure. The structural seismic responses and the internal forces of the main loading parts were compared, and it indicates that the calculating results of the response spectrum method on the spatial model can envelop the calculation results of the other three methods, which can be used as reference for the seismic design of large underground space structure.

Keywords:underground space; seismic analysis; soil-structure time-history analysis method; response spectrum method; response displacement method; elastic time-history analysis method

作者簡(jiǎn)介：張敏，學(xué)士，教授級(jí)高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，總工程師，Email:zhang@siad-c.com。