新型玻璃組合結(jié)構(gòu)及節(jié)點性能研究
黎雪,羅永峰,徐春麗
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(同濟(jì)大學(xué)土木工程學(xué)院,上海 200092)[摘要]提出了一種由玻璃板和拉索組成的新屋頂結(jié)構(gòu)體系,其中玻璃板作為結(jié)構(gòu)受力單元,只承受壓力,拉索單元承受拉力。對該結(jié)構(gòu)體系進(jìn)行靜力分析,計算表明,該結(jié)構(gòu)體系是可行的,能充分發(fā)揮玻璃和索的優(yōu)點。提出了在玻璃與玻璃之間的硅酮結(jié)構(gòu)密封膠中設(shè)置鋼墊塊來傳遞壓力的新型節(jié)點構(gòu)造形式,使板元在局部邊界受壓時起傳遞壓力作用,而受拉時不起作用,不僅提高了玻璃板之間的傳力效率,還避免或減小了玻璃節(jié)點處的傳力集中。[關(guān)鍵詞]玻璃;索;結(jié)構(gòu);節(jié)點;單向傳力方式;接觸問題Behavior of new glass-steel structure and improved jointsLi Xue, Luo Yongfeng, Xu Chunli(College of Civil Engineering, Tongji University, Shanghai 200092, China)Abstract:The resistance in-plane compression of glass panel is quite large, while it can hardly bear any tension. An innovative form of dome, composed mainly of glass panels and steel cables, is proposed and analyzed. The simulation result shows that this kind of dome can make full use of the two kinds of material in the same time and the system is feasible. Several innovative joints are proposed and adopted in the dome to reduce stress concentration or force concentration when bearing in-plane compression.Keywords:glass; cable; structure; joint; load transferring mode; contact problem*“世博場館大空間結(jié)構(gòu)安全保障技術(shù)”項目資助(05DZ05812)。作者簡介:黎雪,博士研究生,Email:li.xue1982@gmail.com。參考文獻(xiàn)[1]JGJ102—2003玻璃幕墻工程技術(shù)規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2003.[2]GB50009—2001建筑結(jié)構(gòu)荷載規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2002.[3]張芹. 建筑幕墻與采光頂設(shè)計施工手冊[M]. 北京:中國建筑工業(yè)出版社,2002.[4]劉錫良. 現(xiàn)代空間結(jié)構(gòu)[M]. 天津:天津大學(xué)出版社,2003.[5]張其林. 玻璃幕墻結(jié)構(gòu)[M]. 濟(jì)南:山東科學(xué)技術(shù)出版社,2006.