某悬挂球幕结构设计分析

A Suspension Spherical Structure Design Analysis

某场馆采用框架-剪力墙结构,于场馆中庭悬挂直径16 m的展馆球体。采用通用分析有限元软件SAP2000作为主要分析软件,重点考察球体拉杆在各设计工况下的位移与构件应力比、某一拉杆断裂后其余拉杆的设计内力及变形、球幕内楼板舒适度分析。对受拉节点进行有限元分析并加强支座环梁,各项测算均满足要求^([1-3]),从设计分析层面保证了悬挂球幕的可行性。

The frame-shear wall structure is adopted in a venue,and the exhibition hall sphere with a diameter of 16 m is suspended in the atrium of the venue.The general finite element method software SAP2000 is chosen as main analysis software.Key investigations were focused on displacement and stress ratio of spherical structure in various design condition,design internal force and deformation of remain suspension rods in condition of a broken rod,results of floor slab comfort analysis in spherical structure.The finite element analysis of the tensile joint and the strengthening of the bearing ring beam are carried out.All the calculations meet the requirements[1-3],and the feasibility of the suspension spherical curtain is guaranteed from the design and analysis level.