（1 武汉城市铁路建设投资开发有限责任公司， 武汉 430071；2中南建筑设计院股份有限公司， 武汉 430071； 3华中科技大学土木工程与力学学院， 武汉 430074）

［摘要］武汉月亮湾城市阳台项目索膜结构整体造型是异形曲面，为大跨度柔性结构，索膜结构主要由起承重作用的承重索、起稳定作用的稳定索以及周边起刚性支承作用的桁架构成。恒载作用下，管桁架构件最大应力出现在支座附近，杆件以压力为主。首先详细介绍了阳台索膜结构的设计，并对不同荷载条件下的索膜结构进行了静力与稳定性分析；然后从钢桁架结构柱提取典型节点进行有限元建模，对其进行校核与优化分析；最后提出了节点优化设计建议。

［关键词］索膜结构； 静力与稳定分析； 典型节点； 有限元分析； 优化设计

中图分类号：TU355文献标识码：A文章编号：1002-848X(2020)08-0145-06

Design and joint optimization analysis of cable-membrane structure of Moon Bay City Balcony Project in Wuhan

WANG Hailiang1, CHEN Yuankun2, XIONG Zhengchao2, ZHOU Weiwei3, CHEN Xiaoqiang2, RUAN Wang3, ZHU Aizhu3

(1 Wuhan Urban Railway Construction Investment & Development Co., Ltd., Wuhan 430071, China；2 Central-South Architectural Design Institute Co., Ltd., Wuhan 430071, China; 3 School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China)

Abstract:The overall shape of the cable-membrane structure of Moon Bay City Balcony Project in Wuhan is a special-shaped curved surface, which is a large-span flexible structure. The cable-membrane structure is mainly composed of load-bearing cables, stabilizing cables and surrounding trusses as rigid supports. Under the action of dead loads, the maximum stress of the pipe truss member appears near the support and the stress of the rod is mainly pressure. Firstly, the design of the cable-membrane structure  of the balcony was introduced in detail, and the static and stability analysis of the cable-membrane structure under different load conditions were carried out. Then the typical joints were selected from the steel truss structural columns for finite element modeling to check and optimize. Finally, the suggestions of joint optimization design were put forward.

Keywords:cable-membrane structure; static and stability analysis; typical joint; finite element analysis; optimization design

作者简介：王海亮，硕士，高级工程师， Email：69474415@qq.com。