绵阳南郊机场T2航站楼钢结构屋盖设计  

Steel structure roof design of terminal T2 of Mianyang Nanjiao Airport

作　　者：向新岸[1] 冯远[1] 张恒飞[1] 韩克良[1] XIANG Xin-an;FENG Yuan;ZHANG Heng-fei;HAN Ke-liang(China Southzwest Architectural Design and Research Institute Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]中国建筑西南设计研究院有限公司,四川成都610041

出　　处：《空间结构》2024年第1期38-46,共9页Spatial Structures

摘　　要：绵阳南郊机场T2航站楼建设项目位于四川省绵阳市,上部钢结构屋盖采用正放四角锥网架,其中网架下表面形态结合建筑造型需求,采用自由曲面;陆侧下客区钢管柱为满足建筑细柱、通透、美观的要求,采用了大长细比预张力拉索柱.本文介绍了逆吊实验法基本原理,并采用数值逆吊方法完成了网架下表面自由曲面的找形设计;基于直接分析法对预张力拉索柱承载力主要影响参数进行了大规模参数分析,总结了不同参数对预张力拉索柱承载力的影响.上述研究成果很好地满足了建筑需求,可供同类项目参考.The construction project of T2 terminal building of Mianyang Nanjiao Airport is located in Mianyang City,Sichuan Province.The upper steel structure roof adopts an orthogonal square pyramid space grid structure.The shape of the lower surface of the space grid corresponds to the architectural modeling requirements and adopts free-form surface.Steel pipe columns in the landside passenger area adopt the pre-tensioned cable column with a large slenderness ratio,in order to meet the requirements of thin column,transparent building and artistic design.This article introduces the basic principles of the inverse hanging method,and uses the numerical inverse hanging method to complete the form-finding design of the free-form surface of the lower surface of the space grid.Based on the direct analysis method,a large scale parametric analysis is carried out on the bearing capacity of pre-tensioned cable columns,and the effects of main parameters on the bearing capacity are summarized.Results from this study meet the architectural requirement well and can be used as a reference for similar projects.

关 键 词：网架结构 数值逆吊实验 结构找形 预张力拉索柱 

分 类 号：TU356[建筑科学—结构工程]