索穹顶结构施工全过程分析_张建华.pdfVIP

30 4 武 汉 理 工 大 学 学 报 Vol. 30 No. 4 200 8 4 JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY Apr . 2008 张建华, 张毅刚 ( , 100022) : 采用非线性时变有限元法, 对索穹顶结构在各施工阶段的力学性状进行了全 程跟踪分析, 得出施工 程杆 件内力和节点位移的演变规律计算结果表明, 部分杆件在施工 程中的最大内力超出设计值的47 % , 得出不考虑施 工 程的时变效应对结构设计偏于不安全的结论, 最后为索穹顶结构的设计和施工提出指导性的建议 : 索穹顶结构; 施工全 程分析; 时变力学; 非线性 : T U 393. 5 : A : 1671- 44 31( 2008) 04- 009 1- 04 Construction Process Analysis o Cable Dome ZH A N G Ji an-hua, ZH A N G Yi-g ang ( School of A rch tecture and C v l Eng neer ng, Be j ng U n v ers ty of T echnology , Be j ng 100022, Ch na) Abstract: T he structural character st cs n ev ery construct on stage of cable dome w ere analy zed. A dopt ng the theory of non- l near t me- var y ng mechan cs, the var at ons of nternal force and d splacements w ere obta ned. Numer cal results nd cated that max mum nternal force n construct on process w as greater 47% than that n des gned state, the paper reached a conclus o n that t w as not saf e to des g n f the t me v ar y ng eff ect w as not cons dered n the constr uct on pro cess analys s. At last , adv ces on de- s gn and construct on of cable dome w er e made. Key words: cable dome; construct on process analys s; t me- vary ng mechan cs; nonl near , , , , , , , , , , , , [ 1-2] , , [ 3] , [ 4] , [ 3] [ 4] , , , , : 2007- 11- 24 . : ( 5027 8004) . : ( 19 80-) , , . E- ma l: zhangj 163. com 2008 4 92 , , ,