论文部分内容阅读
对于大跨度空间结构而言,温度荷载和支座沉降在结构中引起的变形和内力不可忽略。北京将台冬季花园主要包括屋面钢网壳和立面玻璃幕墙。其中网壳部分由九榀空间钢拱和普通壳体杆件组成,可以看作拱壳杂交结构。钢拱两端分别支撑于钢柱和混凝土墙体顶端,玻璃幕墙固定于竖向拉索。本文选取了包含温度荷载和支座沉降的部分工况,运用ANSYS有限元软件对结构进行了静力分析。对比分析结果表明,与支座沉降相比,温度荷载对结构的承载性能有更大影响。同时本文的分析结果也充分体现了杂交结构性能的优越性。
For long-span space structures, the deformation and internal forces caused by temperature load and bearing settlement in the structure can not be neglected. Beijing will Taiwan winter garden mainly includes steel mesh roof and facade glass curtain wall. One part of the reticulated shell consists of a nine-space steel arch and a common shell member, which can be considered as an arch structure. Both ends of the steel arch are respectively supported on the top of the steel column and the concrete wall, and the glass curtain wall is fixed on the vertical cable. In this paper, some conditions including temperature load and bearing settlement are selected, and the static analysis of the structure is carried out by ANSYS finite element software. The results of comparative analysis show that the temperature load has greater influence on the bearing capacity of the structure than the settlement of the bearing. At the same time, the results of this paper also fully reflect the superiority of hybrid structure performance.