大跨度體育館空間鋼管結(jié)構(gòu)的設計與分析
景明勇1),2)，王元清1)，張勇3)，石永久1)，邊振義2)
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1) 清華大學土木工程系，北京，100084； 2)保定太行鋼結(jié)構(gòu)工程有限公司，071000；3)北京交通大學土木建筑工程學院，100044［提要］保定長城體育館看臺為鋼框架結(jié)構(gòu)，屋面采用正放三角形鋼管桁架結(jié)構(gòu)，弦桿和腹桿均為無縫鋼管。采用ANSYS軟件，對結(jié)構(gòu)在各主要荷載組合工況下的結(jié)構(gòu)受力進行了分析，結(jié)果表明，結(jié)構(gòu)受力合理，構(gòu)件強度滿足要求。分析了結(jié)構(gòu)的整體穩(wěn)定性和動力特性，計算結(jié)果表明，恒載和最不利活荷載組合為結(jié)構(gòu)的最不利工況，結(jié)構(gòu)在此工況下的強度和整體穩(wěn)定性均滿足要求。［關鍵詞］體育館；鋼管結(jié)構(gòu)；相貫節(jié)點Design and Analysis of Large Span Spatial Steel Tubular Gymnasium Structure/Jing Mingyong1,2,Wang Yuanqing1,Zhang Yong3,Shi Yongjiu1,Bian Zhenyi2(1Department of Civil Engineering,Tsinghua University,Beijing 100084,China; 2Baoding Taihang Steel Structure Co.,Ltd.,Baoding 071000,China;3 School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,China)Abstract:The steel frame structure is adopted in the grandstand of Baoding Changcheng gymnasium and the triangle steel tube truss structure is used in the roof.The chord and web members are all seamless steel tube.The ANSYS software is used to analyze the structure bearing capcity under main load combinations.The results show that the structure internal force is rational and the member strength meets the requirement.The structure integer stability and dynamic behavior are analyzed.The calculation results show that the combination of dead load and the most disadvantage live distribution is the most disadvantage load condition,and the structure strength and integer stability meet the requirement.Keywords:gymnasium; large span; steel tubular structure; crossing joint; FEM*北京市自然科學基金資助項目(8053021)。
