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(中國中元國際工程有限公司, 北京 100089)
[摘要]蘭州新區(qū)綜合保稅區(qū)綜合服務(wù)樓項目的連廊結(jié)構(gòu)體型較大且造型復雜,結(jié)構(gòu)總長約146m,最大跨度為67-8m,選用了鋼管桁架結(jié)構(gòu)體系。應(yīng)用3D3S,MIDAS/Gen,ANSYS Workbench軟件對結(jié)構(gòu)進行了常規(guī)受力分析、大震作用下結(jié)構(gòu)的彈塑性動力時程分析、關(guān)鍵節(jié)點的有限元分析。結(jié)果表明,桁架桿件控制工況為風荷載和溫度荷載參與的組合;柱是地震作用下結(jié)構(gòu)的關(guān)鍵構(gòu)件,設(shè)計中按中震彈性設(shè)計;結(jié)構(gòu)承載力及變形均滿足規(guī)范的要求。
[關(guān)鍵詞]連廊; 結(jié)構(gòu)設(shè)計; 時程分析
中圖分類號:TU318文獻標識碼:A文章編號:1002-848X(2017)05-0055-04
Structural design on corridor structure of synthetic service building in Lanzhou New Area Comprehensive Bonded Zone
Yin Hongfeng, Chen Aijun, Yang Xingjian, Huang Xin, Chen Dan
(China IPPR International Engineering Co., Ltd., Beijing 100089, China)
Abstract:The corridor structure in the project of synthetic service building in Lanzhou New Area Comprehensive Bonded Zone has large size and complicated shape. The total structural length is 146m and the largest span length is 67-8m. The steel pipe truss structural system is adopted. Programs of 3D3S, MIDAS/Gen and ANSYS Workbench were used to conduct the normal mechanical analysis, the elastic-plastic dynamic time-history analysis of the structure under the rare earthquake, and the finite element analysis of the key nodes. Results show that the control working condition of truss member is the combination of wind loads and temperature loads. The column is the key component of the structure under the earthquake action and column should be designed in accordance with the elastic seismic design under fortification earthquake. The bearing capacity and deformation of the structure meet requirements of the codes.
Keywords:corridor; structural design; time-history analysis
作者簡介:尹弘峰,碩士,工程師,Email:yinhongfeng@qq.com。