椭圆形体育馆悬挑罩棚风荷载分布规律的试验研究
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摘要
大跨度体育场馆轻质罩棚对风荷载往往比较敏感,风荷载成为此类结构设计的控制荷载之一。为了满足工程设计与试验研究的需要,该文对复杂体型体育馆进行了刚性模型测压试验,同时考虑了风向角对风荷载体型系数的影响,经过计算分析得到了不同风向角下结构表面的体型系数分布。研究结果表明:罩棚顶部大部分区域为负压且顶部的波浪造型对风压分布有明显的影响;同时分析出围护结构风敏感区域及风吸力最大值,对结构抗风设计提供了重要依据。
A large-span stadium light-shed is often sensitive to wind loading, and wind loading is one of the control loads for such structural design. In order to meet the needs of engineering design and experimental research, a rigid model pressure test for a complex gymnasium is carried out through the calculation and analysis for the shape factor distribution under different wind angles of surface structure, considering the influence of wind directions on the wind load shape coefficient. The results show that the most areas at the top of the canopy are negative pressure, and the wave shape at the top has obvious influence on the wind pressure distribution. At the same time, the maximum wind sensitive area and the maximum wind suction value of the enclosure structure are analyzed, which provides an important basis for the wind resistant design of the structure.
A large-span stadium light-shed is often sensitive to wind loading, and wind loading is one of the control loads for such structural design. In order to meet the needs of engineering design and experimental research, a rigid model pressure test for a complex gymnasium is carried out through the calculation and analysis for the shape factor distribution under different wind angles of surface structure, considering the influence of wind directions on the wind load shape coefficient. The results show that the most areas at the top of the canopy are negative pressure, and the wave shape at the top has obvious influence on the wind pressure distribution. At the same time, the maximum wind sensitive area and the maximum wind suction value of the enclosure structure are analyzed, which provides an important basis for the wind resistant design of the structure.
引文
[1]陈智勇,彭振斌,陈伟.考虑下部结构支承刚度的大跨度屋盖风致响应分析[J].中南大学学报(自然科学版),2015,46(4):1475―1481.Chen Zhiyong,Peng Zhenbin,Chen Wei.Wind-induced response analysis of long-span roof structure with supporting stiffness[J].Journal of Central South University(Science and Technology),2015,46(4):1475―1481.(in Chinese)
[2]乔帅斌.复杂形体大跨度空间结构风压与等效静风荷载数值模拟[D].上海:上海交通大学,2014.Qiao Shuaibin.Numerical simulation on wind pressure and equivalent static wind loads of long span structures with complex shape[D].Shanghai:Shanghai Jiao Tong University,2014.(in Chinese)
[3]沈世钊.大跨空间结构的发展-回顾与展望[J].土木工程学报,1998,31(3):5―14.Shen Shizhao.Development of structure-a review and prospect[J].China Civil Engineering Journal,1998,31(3):5―14.(in Chinese)
[4]黄鹏,全涌,顾明.TJ-2风洞大气边界层被动模拟方法的研究[J].同济大学学报(自然科学版),1999,27(2):136―137.Huang Peng,Quan Yong,Gu Ming.Research of passive simulation method of atmospheric boundary layer in TJ-2 wind tunnel[J].Journal of Tongji University 1999,27(2):136―137.(in Chinese)
[5]GB 50009―2012,建筑结构荷载规范[S].北京:中国建筑工业出版社,2012.GB 50009―2012,Load code for the design of building structures[S].Beijing:China Building Industry Press,2012.(in Chinese)
[6]谢壮宁,倪振华,石碧青.大跨屋盖风荷载特性的风洞试验研究[J].建筑结构学报,2001,22(2):23―28.Xie Zhuangning,Ni Zhenhua,Shi Bi-qing.Experimental investigation on characteristics of wind load on large span roof[J].Journal of Building Structures,2001,22(2):23―28.(in Chinese)
[7]田玉基,杨庆山,范重,等.国家体育场大跨度屋盖结构风振系数研究[J].建筑结构学报,2007,28(2):26-31.Tian Yuji,Yang Qingshan,Fan Zhong,et al.Gust factors for large-span roof of the national stadium[J].Building Structure,2007,28(2):26―31.(in Chinese)
[8]周向阳,梁枢果,张其林.武汉体育馆钢结构屋盖风振响应分析[J].土木工程学报,2008,41(5):33―39.Zhou Xiangyang,Liang Shuguo,Zhang Qilin.An-alysis of wind-induced dynamic response of the steel roof of Wuhan Gymnasium[J].China Civil Engineering Journal,2008,41(5):33―39.(in Chinese)
[9]张相庭.结构风工程理论·规范·实践[M].北京:建筑工业出版社,2006:99―118.Zhang Xiangting.Wind engineering theory code and practice[M].Beijing:China Architecture and Building Press,2006:99―118.(in Chinese)
[10]罗楠,廖海黎,李明水.大跨屋盖时域多目标等效静力风荷载计算方法[J].工程力学,2013,30(4):316―321.Luo Nan,Liao Haili,LI Mingshui.Universal equivalent static wind loads for long-span roofs in time domain[J].Engineering Mechanics,2013,30(4):316―321.(in Chinese)
[2]乔帅斌.复杂形体大跨度空间结构风压与等效静风荷载数值模拟[D].上海:上海交通大学,2014.Qiao Shuaibin.Numerical simulation on wind pressure and equivalent static wind loads of long span structures with complex shape[D].Shanghai:Shanghai Jiao Tong University,2014.(in Chinese)
[3]沈世钊.大跨空间结构的发展-回顾与展望[J].土木工程学报,1998,31(3):5―14.Shen Shizhao.Development of structure-a review and prospect[J].China Civil Engineering Journal,1998,31(3):5―14.(in Chinese)
[4]黄鹏,全涌,顾明.TJ-2风洞大气边界层被动模拟方法的研究[J].同济大学学报(自然科学版),1999,27(2):136―137.Huang Peng,Quan Yong,Gu Ming.Research of passive simulation method of atmospheric boundary layer in TJ-2 wind tunnel[J].Journal of Tongji University 1999,27(2):136―137.(in Chinese)
[5]GB 50009―2012,建筑结构荷载规范[S].北京:中国建筑工业出版社,2012.GB 50009―2012,Load code for the design of building structures[S].Beijing:China Building Industry Press,2012.(in Chinese)
[6]谢壮宁,倪振华,石碧青.大跨屋盖风荷载特性的风洞试验研究[J].建筑结构学报,2001,22(2):23―28.Xie Zhuangning,Ni Zhenhua,Shi Bi-qing.Experimental investigation on characteristics of wind load on large span roof[J].Journal of Building Structures,2001,22(2):23―28.(in Chinese)
[7]田玉基,杨庆山,范重,等.国家体育场大跨度屋盖结构风振系数研究[J].建筑结构学报,2007,28(2):26-31.Tian Yuji,Yang Qingshan,Fan Zhong,et al.Gust factors for large-span roof of the national stadium[J].Building Structure,2007,28(2):26―31.(in Chinese)
[8]周向阳,梁枢果,张其林.武汉体育馆钢结构屋盖风振响应分析[J].土木工程学报,2008,41(5):33―39.Zhou Xiangyang,Liang Shuguo,Zhang Qilin.An-alysis of wind-induced dynamic response of the steel roof of Wuhan Gymnasium[J].China Civil Engineering Journal,2008,41(5):33―39.(in Chinese)
[9]张相庭.结构风工程理论·规范·实践[M].北京:建筑工业出版社,2006:99―118.Zhang Xiangting.Wind engineering theory code and practice[M].Beijing:China Architecture and Building Press,2006:99―118.(in Chinese)
[10]罗楠,廖海黎,李明水.大跨屋盖时域多目标等效静力风荷载计算方法[J].工程力学,2013,30(4):316―321.Luo Nan,Liao Haili,LI Mingshui.Universal equivalent static wind loads for long-span roofs in time domain[J].Engineering Mechanics,2013,30(4):316―321.(in Chinese)
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