弦支穹頂結(jié)構(gòu)上下部共同工作分析
張國軍，張慶亮，葛家琪，王樹
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(中國航空規(guī)劃建設(shè)發(fā)展有限公司，北京100120)［摘要］以2008年奧運會羽毛球館弦支穹頂結(jié)構(gòu)為研究對象，對上部弦支穹頂、上下部整體結(jié)構(gòu)兩個計算模型進行結(jié)構(gòu)自振特性分析、靜力及抗震等方面的對比分析，重點研究了下部混凝土結(jié)構(gòu)對上部屋蓋鋼結(jié)構(gòu)的影響。分析結(jié)果表明，下部混凝土結(jié)構(gòu)對上部弦支穹頂鋼結(jié)構(gòu)受力和變形有一定影響，尤其是在溫度作用及地震作用下受力和變形差別較大。弦支穹頂結(jié)構(gòu)設(shè)計應(yīng)進行上下部結(jié)構(gòu)共同工作分析，并可據(jù)此對屋蓋鋼結(jié)構(gòu)進行優(yōu)化設(shè)計。［關(guān)鍵詞］弦支穹頂；共同工作；模態(tài)分析；靜力分析；抗震分析中圖分類號：TU318.82，TU398.9文獻標識碼：A文章編號：1002-848X(2011)02-0037-04Coincident work analysis of the upper and lower structure of suspended domeZhang Guojun, Zhang Qingliang, Ge Jiaqi, Wang Shu(China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China)Abstract:For the badminton gymnasium of 2008 Olympic Games, two computer structural models, the only upper suspended dome structure and the whole structure, were built to conduct modal analysis, static analysis and earthquake-resistance analysis and then to compare the results from the two models, focusing on the research of the impact of the lower reinforce concrete structure on the upper structural steel roof. As shown in the results, the lower reinforced concrete structure has a general impact on the upper structural steel suspended dome when it comes to the internal force and the deformation differences from the two models, subject to the temperature load and the seismic load each. As a result, the coincident work between the upper and lower structure should be considered, based on which the structural optimization design can be performed.Keywords:suspended dome; coincident work; modal analysis; static analysis; earthquake-resistance analysis作者簡介：張國軍，博士，結(jié)構(gòu)室主任，Email:sanduo@126.com。參考文獻［1］葛家琪,王樹,梁海彤，等. 2008奧運羽毛球館新型弦支穹頂預(yù)應(yīng)力大跨度鋼結(jié)構(gòu)設(shè)計研究［J］.建筑結(jié)構(gòu)學(xué)報,2007,28(6):10-21.［2］葛家琪,張國軍,王樹,等. 2008奧運會羽毛球館弦支穹頂結(jié)構(gòu)整體穩(wěn)定性能分析研究［J］. 建筑結(jié)構(gòu)學(xué)報,2007,28(6):22-30.
