(1 广东省建筑设计研究院有限公司, 广州 510010; 2 广州大学土木工程学院, 广州 510006)

摘要: 广州空港会展中心标准展馆利用结构参数化工具对多种类型展馆结构进行选型对比,综合建筑效果、使用需求和经济指标,首次在展馆内采用复合张弦桁架结构体系. 对复合张弦桁架结构进行非线性设计分析、双非线性稳定分析、防连续性倒塌分析和不平衡吊挂荷载分析,结果显示,结构各项计算指标均满足规范要求,并具有足够安全冗余度. 高风压作用下拉索可维持足够的索力并且不松弛,屋面变形可控. 相关索节点传力清晰,背锚节点有利于现场张拉施工. 下弦拉杆在初始态到全荷载态的全受力过程中拉压变向,下弦杆受力满足不同荷载状态需求. 复合张弦桁架结构体系满足多种施工方式选择,张拉施工快捷、方便,地坪、屋盖施工互不干扰. 复合张弦桁架结构在沿海高风压地区具有优越的受力性能和建筑表现力.

关键词: 广州空港会展中心; 复合张弦桁架; 双非线性稳定分析; 结构参数化; 光纤智慧索; 拉索背锚节点;高风压地区

中图分类号:TU398.7 文献标志码:A 文章编号:1002-848X(2022)21-0088-08

DOI:10.19701 / j.jzjg.GDAD2203

Selection and analysis of composite string truss structure system for Guangzhou Airport Convention and Exhibition Center

CHEN Jinyu1,2, OU Tong1, LUO Chiyu1, ZHANG Jiawu1, LIN Zhangyin1, ZHANG Zengqiu1

(1 Guangdong Architectural Design & Research Institute Co. , Ltd., Guangzhou 510010, China;2 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)

Abstract: The standard exhibition hall of Guangzhou Airport Convention and Exhibition Center uses the structuralparameterization tool to compare the structural system selection of various types of exhibition halls, and integratesarchitectural effects, usage requirements and economic indicators. For the first time, the composite string truss structuresystem was used in the exhibition hall. The non-linear design analysis, double nonlinear stability analysis, anti-progressivecollapse analysis and unbalanced hanging load analysis were carried out on the composite string truss structure. The resultsshow that the calculation indicators of the structure meet the requirements of the code and have sufficient safety redundancy.Under the action of high wind pressure, the pull-down cable can maintain sufficient cable force without slack, and the roofdeformation can be controlled. The relevant cable nodes have clear force transmission, and the back anchor nodes areconducive to on-site tension construction. The lower chord tie rod changes direction in tension and compression during thefull stress process from the initial state to the full load state, and the stress of the lower chord rod meets the requirements ofdifferent load states. The composite tension string truss structure system can meet the selection of various constructionmethods. The tension construction is fast and convenient, and the construction of the floor and the roof does not interferewith each other. The composite string truss structure has superior mechanical performance and architectural expression incoastal areas with high wind pressure.

Keywords:Guangzhou Airport Convention ard Exhibition Center; composite string truss; double nonlinear stabilityanalysis; structural parameterization; optical fiber smart cable; back anchor node of stay cable; high wind pressure area

∗国家自然科学基金青年基金项目(51408030).

第一作者:陈进于,硕士,高级工程师,一级注册结构工程师,主要从事空间结构设计研究,Email:18153822@ qq. com.

[引用本文] 陈进于,区彤,罗赤宇,等. 广州空港会展中心复合张弦桁架结构体系选型与分析[ J]. 建筑结构,2022,52(21):88-95. CHEN Jinyu,OU Tong,LUO Chiyu,et al. Selection and analysis of composite string truss structuresystem for Guangzhou Airport Convention and Exhibition Center[J]. Building Structure,2022,52(21):88-95.