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(龍安泛華建筑工程顧問有限公司 北京100053)
【提要】 某體育館是由網(wǎng)架結(jié)構(gòu)和落地提籃形桁架組成的雜交結(jié)構(gòu)，圓管相交采用T形相貫剛接節(jié)點。介紹了工程結(jié)構(gòu)的設(shè)計、分析過程。利用半經(jīng)驗半理論公式，介紹了圓管結(jié)構(gòu)T形相貫剛接節(jié)點的計算方法和節(jié)點柔性對整個結(jié)構(gòu)體系分析的影響。分析結(jié)果表明，在一定幾何條件下，T形相貫節(jié)點可以看作剛接節(jié)點，但應(yīng)考慮
一定的節(jié)點柔性對整體結(jié)構(gòu)變形的影響。
【關(guān)鍵詞】 圓管結(jié)構(gòu) T形相貫 剛性節(jié)點 節(jié)點柔性
Design and Application of Ttype Rigid Connection Joint in Circular Hollow Structure/Lu Qinggang,Geng Xiaobing,Chen Zhenyang(Longonfanhua Architecture Engineering Consultants Co.,Ltd.,Beijing 100053,China)
Abstract:A gymnasium consists of space truss structure and shopping basket shaped truss structure,and the Ttype rigid connection joint is adopted when the circular tube is intersected.The structural design and analysis are introduced.Based on the semiexperience and semitheory formula,the calculation methods of the Ttype rigid connection joints in circular tube structure and the effects of joint flexibility on the structure system are presented.The results show that the Ttype connection joint can be regarded as rigi
d under some circumstances but the effects of certain joint flexibility on the structure system should be taken into account.
Keywords:circular tube structure; Ttype intersect; rigid joints; joint flexibility