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（中國建筑西南設(shè)計(jì)研究院，成都610081）

［提要］針對上海天然氣調(diào)度指揮展示中心鋼結(jié)構(gòu)設(shè)計(jì)，詳細(xì)介紹了為避免平面及豎向不規(guī)則而采用的結(jié)構(gòu)布置和連接構(gòu)造處理。大跨度共享大廳采用大直徑鋼管柱和空間管桁架以提高結(jié)構(gòu)抗側(cè)剛度，在大跨度點(diǎn)式玻璃幕墻設(shè)計(jì)中采用魚腹式桁架及預(yù)應(yīng)力索桁架以滿足建筑和結(jié)構(gòu)的要求，介紹了風(fēng)荷載計(jì)算參數(shù)的取值及拉索的預(yù)應(yīng)力控制。

［關(guān)鍵詞］鋼結(jié)構(gòu)；不規(guī)則體型；結(jié)構(gòu)布置；連接構(gòu)造；空間管桁架；玻璃幕墻；預(yù)應(yīng)力索桁架

Structural Design of Shanghai Gas Command and Demonstration Center/Wei Zhong（China Southwest Architectural Design and Research Institute,Chengdu 610081,China）

Abstract:It introduces the structural design of Shanghai Gas Command and Demonstration Center which includes the structure plane arrangement and the connecting constructions to avoid irregular planar and vertical structure，adoption of large diameter steel tube column and hollow structural section truss to improve the structure stiffness of the sharing hall. The adoption of parameters in calculating wind load and the prestress control of the pretensioned cable truss are presented in design of the large span glass curtain wall which adopted fishbellied truss and pretensioned cable truss.

Keywords:steel irregular structure；plane arrangement；connecting construction；hollow section truss；curtain wall；cable truss