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    楊  威   王元清   石永久   李少甫
    （清華大學(xué)建筑玻璃與金屬結(jié)構(gòu)研究所  北京 100084）

[提要]  點(diǎn)式玻璃幕墻在國(guó)內(nèi)運(yùn)用越來越廣，而現(xiàn)有的幕墻規(guī)范(JGJ102-96)對(duì)其應(yīng)力和位移分析沒有做出明確規(guī)定。為此，從理論上分析了影響點(diǎn)式支承玻璃板承載性能的幾個(gè)重要因素：連接約束條件、支承點(diǎn)連接方式。運(yùn)用有限元數(shù)值分析的方法重點(diǎn)研究了玻璃建筑技術(shù)中帶孔點(diǎn)式玻璃孔邊緣應(yīng)力的問題，分別討論了孔邊緣應(yīng)力集中和孔心邊距對(duì)玻璃板承載性能的影響，為規(guī)范修改和工程設(shè)計(jì)提供了參考依據(jù)。
[關(guān)鍵詞]  點(diǎn)式支承  帶孔玻璃  抗彎強(qiáng)度  應(yīng)力集中

Point-supporting glass curtain wall have been used more and more widely in China today, but current code (JGJ102-96) of curtain wall doesn't solve the problems of stress and displacement. This paper analyses several factors influencing loading properties of glass monolayer plate, such as connection manners,connection shapes, describes problems of concentrated stress of hole's edge of point support glass in glass buildings, especially the influence of concentrated stress of hole's edge and distance from center to plate's edge on loading property of glass plate, which provides basis for revising code and construction design.
Keywords:  polnt support; glass with hole; bending strength; stress concentration