摘要
世博会国家电网企业馆采用周边具有正交斜放支承柱的网格结构,外墙角不设角柱,楼屋盖采用正交正放的平面桁架系.它们共同组成三个盒型空间抗侧力体系.主体结构中部开口为空间六面体魔盒,每个面均采用双层双向正交空腹平面桁架,在魔盒的每个棱边布置支撑对角部进行加强.建筑效果和结构设计达到和谐统一.本文对该结构的体系构成、计算分析内容和结果进行简要介绍.结构计算分析内容包括荷载分析、地震作用分析、温度作用分析、稳定性分析、节点分析、楼盖舒适度分析和施工模拟加载分析.针对魔盒内人行天桥水平张弦梁的设计,本文推导了确定竖杆下节点坐标的手算方法.
States Grid exhibition building of Expo 2010 adopts a structural system with polygon spatial rigid frames. There are no corner vertical columns around outer corners of this building. Floor and roof systems adopt orthogonal crossing and deposited planar frames structures. Then outer diagonal deposited orthogonal crossing lattice and the floor systems work together as a spatial structure system to resist horizontal forces. In middle of the main structure, there is a magic box with cubic shape, each surface is composed of 2 direction crossed planar frame without paunch bars. The corner areas of the magic box are stiffened by brace members. The architectural and structural design unite harmonically. In the paper, the constitution of structural system, computational content and results are given out in brief. Structural analysis includes loading effects, seismic action analysis, temperature effects analysis, stability analysis, joint design, comfortability analysis of floor systems, and construction simulation. Regarding a small horizontally deposited Beam-string structure within the magic box of this building, a simple strategy to calculate the vertical coordinates of vertical bars by hand is proposed.
出处
《空间结构》
CSCD
北大核心
2011年第4期54-58,共5页
Spatial Structures
基金
国家自然科学基金资助项目(50638050)
关键词
空间结构
刚架结构
张弦梁
形状确定问题
spatial structures
rigid frame structure
beam-string structures
shape determination problem
