杭州银泰购物广场采光顶大厅网壳结构初步设计

Preliminary design of the latticed shell structures for Hangzhou Yintai Shopping Square Lighting Hall

网壳结构在大跨度空间结构中应用广泛.为对杭州银泰购物广场采光顶大厅网壳结构进行整体设计和稳定性验算,采用Midas软件对恒载、活载、风洞试验所得到的风载、雪载、地震、支座位移等作用下的网壳结构不断调整使其满足设计要求,并按规范进行了整体稳定性分析.杆件应力和结构的整体稳定基本符合规范要求,但在荷载组合下的结构最大变形超出了规范要求,恒载下的变形可通过反拱来改善外观,活载下变形满足规范限值.本文设计基本满足设计要求.

Latticed shell structures are widely used in large-span space structures. In order to complete the overall design and stability analysis of the latticed shell structures for Hangzhou Yintai Shopping Square Lighting Hall, the whole structure is adjusted to meet the design requirements under combinations of dead loads, live loads, wind loads, snow loads, earthquake actions, and supports drift with Midas software. Also the overall stability is analyzed according to the code for space structures. After adjustment, member stress and the overall stability could meet the code requirements. While the maximum deflection of the structure under combinations of dead loads and live loads exceeds the limit value specified by the code. Deflection under dead loads could be reduced through pre-areh and deflection under live loads could meet code limits. In this way, the structure in this paper could meet the design requirements in general.