施工技术 2012年10月下 78 CONSTRUCTIONTECHNOLOGY 第41卷第375期 江宁国家电网玻璃幕墙拉索结构设计与优化 杨浩，罗斌，郭正兴 （东南大学土木工程学院，江苏南京210096） [摘要］南京江宁国家电网玻璃蒋墙采用单层平面索网索结构，拉索为不锈钢材质，与常规玻璃幕墙相比，其具有 索网面积大、变形控制难的特点。
原索网结构由于不锈钢拉索应力松弛大、拉索高空张拉技术难等缺点，故需对其 优化设计。
通过调整索网结构布置、改变索材等，设计了几种优化方案并与原方案进行对比研究，包括索网结构内 力和变形的对比分析，并考虑了结构局部变化对结构性能的影响。
分析研究表明，索材替换对索网拉索的内力和 变形影响不大，而索网支撑布置的变化对索网的结构性能影响较大。
[关键词]钢结构；玻璃幕墙；索网；优化；设计 [中图分类号]TU767.6 [文献标识码】A [文章编号】1002-8498（2012）20-0078-04 Cable Structure Design and Optimization Research ofState Grid Glass Facade in Jiangning Yang Hao,Luo Bin，Guo Zhengxing (School of Civil Engineering, Southeast University，Nanjing，Jiangsu 210096, China) Abstract:The glass curtain wall facade in Jiangning of Nanjing is monolayer plane cable net structure, whose cable is stainless steel cable. Different from conventional facade having been studied, this cable nets. area is larger and deformation control is more difficult. Because the stainless steel cable' s stress relaxation is large and the technology of cable tensioning in aloft is difficult, the optimization design is needed for the cable nets structure. This paper has designed several optimization schemes by changing cable nets structure arrangement, and had contrast studies to the original scheme，including the analysis of internal force and deformation of the cable net structure， and also consider the local structure change that has influence on the performance of the structure. The results show that changing the cable material has low influence on the cable internal force and deformation of the cable net,but the influence is large when the cable net support arrangement is changed. Key words:steel structures; glass curtain wall; cable net; optimization; design 1工程概况 江宁国家电网玻璃幕墙南立面拉索幕墙为一 水平索 单层平面索网结构，拉索边界条件为大刚度支撑的 钢箱梁和钢骨混凝土柱。
拉索幕墙形状为矩形，其 水平三 高度为58.5m，宽度为27m；在幕墙底部的中间，有 角桁架 一高3.7m、宽7m的矩形门洞。
该玻璃幕墙总面积 竖向索 约为1500m²，属于大跨度单层平面索网幕墙结构 体系。
整个幕墙的平面布置如图1所示。
2结构特点 27 000 与传统单层平面索网幕墙受力特征相似，该索 图1拉索幕墙立面布置 [收稿日期]2012-08-14 Fig.1 Facade of cable of curtain wall...
