綿竹體育館預(yù)應(yīng)力拱桁架設(shè)計研究
路江龍,張謹(jǐn),常瀚,向紅
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路江龍,張謹(jǐn),常瀚,向紅(蘇州工業(yè)園區(qū)設(shè)計研究院股份有限公司, 蘇州 215021)[摘要]四川綿竹體育館屋蓋結(jié)構(gòu)采用了形式較為新穎的下弦管內(nèi)張拉預(yù)應(yīng)力拱桁架體系。以此為研究對象,采用不同計算模型,選取不同支座類型、高跨比、預(yù)應(yīng)力度這三個主要參數(shù)進(jìn)行結(jié)構(gòu)體系的分析對比,研究得出各關(guān)鍵參數(shù)的合理取值范圍;并對相同承載力控制指標(biāo)下預(yù)應(yīng)力體系與非預(yù)應(yīng)力體系進(jìn)行了靜力分析及靜力彈塑性全過程分析,研究預(yù)應(yīng)力體系的有效性,可為類似工程提供一定參考。[關(guān)鍵詞]體內(nèi)張拉; 高跨比; 預(yù)應(yīng)力度; 靜力彈塑性中圖分類號:TU394,TU393.3文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2013)14-0025-04Research on prestressed arch truss system design of Mianzhu GymnasiumLu Jianglong, Zhang Jin, Chang Han, Xiang Hong(Suzhou Industrial Park Design & Research Institute Co., Ltd., Suzhou 215021, China)Abstract: Arch truss system with prestressed bottom chord is applied in roof structure of Mianzhu Gymnasium in Sichuan province. Calculation models with different support types, height-span ratio and prestressed degree were compared to research the reasonable value distribution of main parameters. Static analysis and static elastic-plastic analysis were applied in prestressed system and non-prestressed system under the same control index of bearing capacity. Effectiveness of prestressed system was researched for reference.Keywords: interior tension; height-span ratio; prestressed degree; static elastic-plastic作者簡介:路江龍,高級工程師,一級注冊結(jié)構(gòu)工程師,英聯(lián)邦特許結(jié)構(gòu)工程師(MIStructE,CEng),Email:lujianglong@sipdri.com。參考文獻(xiàn)[1]董石麟,羅堯治,趙陽,等. 新型空間結(jié)構(gòu)分析、設(shè)計與施工[M]. 北京: 人民交通出版社,2006.[2]黃季陽,聶悅,王樹,等.中關(guān)村國家自主創(chuàng)新展示中心折線形布索預(yù)應(yīng)力鋼桁架結(jié)構(gòu)設(shè)計研究[J].建筑結(jié)構(gòu),2012,42(1):49-54.[3]葛家琪,王明珠,管志忠,等.體內(nèi)預(yù)應(yīng)力鋼管桁架結(jié)構(gòu)的分析與設(shè)計[C]//中國預(yù)應(yīng)力技術(shù)第九屆后張預(yù)應(yīng)力學(xué)術(shù)交流會論文集.2006:241-246.[4]祖青,李彬雙.體內(nèi)預(yù)應(yīng)力鋼屋架張拉成型及內(nèi)力分布研究[J].工業(yè)建筑,2008,38(S1):535-538.[5]張卉,司斌.某體育館鋼結(jié)構(gòu)屋面穩(wěn)定性分析[J].建筑結(jié)構(gòu),2012,42(S1):669-670.[6]唐柏鑒,李一松,裴波.空間桁架梁的整體穩(wěn)定研究[C]//第五屆全國現(xiàn)代結(jié)構(gòu)工程學(xué)術(shù)研討會論文集.2005:599-601.