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    劉軍進(jìn)  呂志濤
    （東南大學(xué)土木工程學(xué)院  南京 210096）

[提要]  結(jié)合上海大劇院玻璃幕墻的結(jié)構(gòu)設(shè)計(jì)，探討了預(yù)應(yīng)力索桁架這一新型幕墻結(jié)構(gòu)支承體系的工作原理。對(duì)索桁架中的典型節(jié)段進(jìn)行了靜力分析，提出了計(jì)算假定。在此基礎(chǔ)上，給出了設(shè)計(jì)計(jì)算方法，并對(duì)施工方法作了簡(jiǎn)要介紹。
[關(guān)鍵詞]  預(yù)應(yīng)力  索桁架  玻璃幕墻  支承體系  結(jié)構(gòu)設(shè)計(jì)

Combining with the supporting system of the glass curtain of Shanghai Grand Theatre, the working principle of such a new form of supporting system-Prestressed Cable Truss is discussed. Static analysis about a typical segment of the cable truss is processed and some assumptions are presented. Based on it,one design method is put forward. In the end, some construction methods are briefly introduced.
Keywords: prestress; cable truss; glass curtain