廣西體育中心游泳跳水館鋼屋蓋穩(wěn)定性研究
劉 宏，荊向曉，胡 剛
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（廣西華藍設計集團有限公司，南寧 530011）[摘要] 廣西體育中心游泳跳水館鋼屋蓋采用空間管桁架與單層網殼組合結構?？臻g管桁架為主受力構件，由橫向八榀落于地面基礎的空間管桁架與縱向四榀落于兩端墩臺的空間管桁架組成，作為支撐的單層網殼可增加鋼屋蓋整體剛度并直接承擔相應部分屋面荷載。主要介紹了該工程鋼屋蓋的結構選型并對同時考慮幾何和材料非線性的穩(wěn)定性進行分析。[關鍵詞] 空間管桁架; 單層網殼; 穩(wěn)定分析; 幾何非線性; 材料非線性中圖分類號：TU393.3 文獻標識碼：A 文章編號：1002-848X(2013)S2-0453-04Stability of the steel roof system of Aquatic Center of Guangxi Sports CenterLiu Hong, Jing Xiangxiao, Hu Gang（Guangxi Hualan Design & Consulting Group, Nanning 530011, China）Abstract: The steel roof of Aquatic Center of Guangxi Sports Center Space adopts spatial tubular truss structural system with single layered lattice shell. As the main supporting structure, space tubular truss consist of eight transverse truss units that go straight down to the ground and four longitudinal truss units supported on the piers at two ends. Single layered lattice shell serves as bracing members to increase the overall rigidity of steel roof and directly undertakes loadings from the roof. Structural system selection and nonlinear stability analysis of the roof considering both geometric and material nonlinearity are introduced.Keywords: spatial tubular truss; single layered lattice shell; stability analysis; geometric nonlinearity; material nonlinearity
