武汉市月亮湾城市阳台索膜结构设计与节点优化分析

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

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。

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.