刘军进  吕志涛
    （东南大学土木工程学院  南京 210096）

[提要]  结合上海大剧院玻璃幕墙的结构设计，探讨了预应力索桁架这一新型幕墙结构支承体系的工作原理。对索桁架中的典型节段进行了静力分析，提出了计算假定。在此基础上，给出了设计计算方法，并对施工方法作了简要介绍。
[关键词]  预应力  索桁架  玻璃幕墙  支承体系  结构设计

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