摘要
为研究大跨度索拱桁架结构在200m以上跨度干煤棚中应用的适宜性及施工可操作性,在结构抗风分析中,通过风洞测压试验和风振响应分析来确定结构设计风荷载;进行了考虑初始缺陷的双非线性结构整体稳定分析和抗震性能分析;针对本研究结构技术特点,提出适宜的结构安装方法并进行相应的施工阶段分析。通过与荷载规范方法风荷载作用效应的对比分析,证明了借助风洞试验可以取得较经济合理的设计效果;通过施工方案仿真分析及施工验证,确定本研究大跨度索拱桁架结构施工可操作性。结果表明:大跨度索拱桁架结构的各项技术指标表现良好,适宜在200m以上跨度的干煤棚结构中采用,施工可操作,可以在超大跨度干煤棚结构中推广应用。
In order to study the suitability and construction operability of the long-span cable-arch truss structure in dry coal sheds with a span of more than 200 m,in the structural wind resistance analysis,wind tunnel pressure test and wind vibration response analysis were used to determine the structural design wind load.The overall stability analysis and seismic performance analysis of the dual non-linear structure considering the initial defects were carried out;according to the technical characteristics of the structure in this study,a suitable structure installation method was proposed and the corresponding construction phase analysis is carried out.Through the comparative analysis of the wind load effect with the load code method,it was proved that the wind tunnel test can achieve a more economical and reasonable design effect;through the construction plan simulation analysis and construction verification,the construction operability of the large-span cable-arch truss structure in this study was determined.The results show that the various technical indicators of the large-span cable-arch truss structure perform well,and it is suitable for use in the dry coal shed structure with a span of more than 200 m.The construction is operable and can be popularized and applied in the ultra-large-span dry coal shed structure.
作者
吴碧野
武岳
戴君武
孙瑛
WU Biye;WU Yue;DAI Junwu;SUN Ying(Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China;Heilongjiang Jiuzhou Fangyuan Architectural Planning and Design Co.,Ltd.,Harbin 150090,China;Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education,Harbin Institute of Technology,Harbin 150090,China;Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology,Harbin Institute of Technology,Harbin 150090,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期546-555,共10页
Building Structure
基金
国家自然科学基金项目(52078163)
关键词
干煤棚结构
初始缺陷
结构整体稳定
抗风设计
施工阶段分析
dry coal shed structure
initial defects
overall stability of the structure
wind-resistant design
construction stage analysis
