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Experimental Study on Wind Resistance of Metal Roof in Hangzhou-Shaoxing-Taizhou Railway Station
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摘要: 以杭绍台铁路站房金属屋面为研究对象，通过抗风揭试验，明确其失效模式和抗风揭承载力，并探讨不同参数对直立锁边金属屋面抗风揭性能的影响。研究结果表明：直立锁边金属屋面在风吸力作用下主要的破坏模式是锁边处屋面板与支座的脱扣破坏；改变支座高度、檩条间距、布置抗风夹均能提高直立锁边金属屋面的抗风揭性能，其中布置抗风夹效果最为显著；高强抗风夹能转变金属屋面系统的失效模式，较常规抗风夹而言，能大幅提高屋面板抗风承载力；动态循环加载对直立锁边金属屋面的极限承载力存在着明显的影响，在实际工程中进行动态循环抗风揭试验是十分有必要的。Abstract: Taking the metal roof of Hangzhou-Shaoxing-Taizhou Railway Station as the research object, through the wind resistance test, its failure mode and wind resistance were determined, and the effects of different parameters on the wind resistance of standing seam metal roof were discussed, the results showed that the main failure mode of the standing seam metal roof under wind suction was trip-out failure between the roof panel at seams and bearings. changing the bearing height, purlin spacing and arranging the anti-wind clip could improve the wind resistance of the metal roof with standing seams, and the effect of arranging the anti-wind clip was the most significant. The high-strength wind resistance clamp could change the failure mode of metal roofing system and greatly improve the wind bearing capacity of roof panel compared with the conventional wind clamp. Dynamic cyclic loading had an obvious influence on the ultimate bearing capacity of metal roof with standing seams. It is very necessary to carry out dynamic cyclic wind resistance test in practical engineering.
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[1] 刘军进,崔忠乾,李建辉. 直立锁边金属屋面抗风揭性能硏究现状及展望[J]. 建筑科学,2018,34(5):118-124. [2] 方健. 台风地区火车站金属屋面抗风揭性能研究[J]. 铁道建筑技术,2015(7):118-122. [3] 葛连福. 屋面压型铝板抗风揭性能分析[C]//第二届全国金属围护系统行业大会暨2015年金属围护系统学术年会论文集. 2015. [4] ALI H M, SENSENY P E.Models for standing seam roofs[J].Journal of Wind Engineering & Industrial Aerodynamics, 2003, 91(12/13/14/15):1689-1702. [5] HABTE F, MOONEGHI M A, CHOWDHURY A G, et al.Full-scale testing to evaluate the performance of standing seam metal roofs under simulated wind loading[J].Engineering Structures, 2015, 105(15):231-248. [6] 程明,石永久,王元清,等. 国家大剧院屋面系统承载性能试验研究[J]. 建筑结构,2005,35(2):3-5. [7] 孙瑛,武涛,武岳. 带抗风夹的直立锁边屋面系统抗风性能的参数研究[J]. 工程力学,2020,37(2):183-191. [8] 刘军进,崔忠乾,李建辉,等. 铝镁锰直立锁边金属屋面抗风揭性能试验研究与理论分析[J]. 建筑结构学报,2021,42(5):19-31. 期刊类型引用(5)
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