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鄒 宇 石永久 王元清 李少甫
（清華大學(xué)建筑金屬與玻璃結(jié)構(gòu)研究所 北京 100084）[提要] 在點式支承玻璃建筑中，金屬連接件的承載性能對整個結(jié)構(gòu)的承載性能有很大影響。對北京植物園展覽溫室點式支承玻璃結(jié)構(gòu)中的金屬連接件進行了承載性能試驗，分別研究了固接浮頭、鉸接浮頭、鉸接沉頭緊固件和X形、H形中間肢、H形邊肢支承件的承載能力，并且計算了這些緊固件和支承件在實際工作中的強度儲備。分析表明，在工程中還可以對金屬連接件的設(shè)計進行優(yōu)化，以節(jié)約材料。
[關(guān)鍵詞] 點式支承玻璃結(jié)構(gòu) 金屬連接件 緊固件 支承件 承載性能Test was made on loading properties of metal connectors in the point-supporting glass structure of the conservatory of Beijing Arboretum. Loading capacities of three typical fasteners ( fixed floating-head, hinged floating-head, hinged countersunk) and three typical fixings ( X-shaped, middle part of H-shaped, side part of H-shaped) were analyzed respectively. Safety margins of these fasteners and fixings were also calculated. Analysis shows that optimization can be made when designing the metal connectors in projects and the consumption of materials can be reduced.
Keywords: polnt-supporting glass structures; metal connectors; fastener; fixing; loading property
