（北京市建筑工程研究院有限责任公司， 北京 100039）

［摘要］分析了单层单向索网幕墙的受力性能，并给出了最优索截面和初应变的计算公式。考虑了温度荷载和边界刚度对索截面和初应变的影响，得出了不锈钢索和高钒索的索截面快速估算公式，给出了常规索网的初应变合理取值范围，大大减少了有限元软件计算中的试算工作量。

［关键词］单层单向索网幕墙; 索截面; 初应变; 温度荷载; 边界刚度

中图分类号：TU382      文献标识码：A      文章编号：1002-848X(2014)06-0051-04

Mechanical behavior and estimation formula on cable cross-section for one-way single-layer cable curtain walls

Du Yankai, Chen Binyi, Zhou Liguang, Hu Yang, Tong Weimin

 (Beijing Building Construction Research Institute Co., Ltd., Beijing 100039, China)

Abstract: The mechanical behavior for one-way single-layer cable curtain walls was analyzed. A formula on calculating optimum cable cross-section and initial strain was presented. Considering the effect of the temperature load and boundary stiffness on cable cross-section and initial strain, quick estimation formula on cable cross-section of stainless steel cable and high-vanadium was obtained. At the same time, the proper value range of initial strain for conventional cable nets was given out, reducing the workload for the finite element analysis of trial calculation.

Keywords: One-way single-layer cable curtain wall; cable cross-section; initial strain; temperature load; boundary stiffness

作者简介：杜彦凯，硕士，工程师，Email：12562950@qq.com。

参考文献

［1］JGJ 257—2012索结构技术规程［S］.北京：中国建筑工业出版社，2012.

［2］沈世钊,徐崇宝,赵臣,等.悬索结构设计［M］.2版.北京：中国建筑工业出版社，2006.