长江航道模型120m跨试验大厅结构设计

摘要

Truss string structure was applied in a single layer 120 meter span building.According to truss string structure indoor perception effect is poorer, put forward a kind of truss string structure with upside variable cross-section truss.This paper introduces the selection of roof structure,tension value choice, stability analysis and node design etc, The result can be a reference to the design of similar project.%该工程为120m跨的单层建筑,采用张弦桁架结构.针对常规张弦桁架室内观感效果较差的缺点,提出了一种上部为变截面桁架的张弦桁架结构形式.该文详细介绍了屋盖结构选型、张拉力选择、稳定分析和节点设计等,对同类工程有重要的参考价值.