大跨空间钢结构时域等效静力风荷载理论研究
|
摘要
文章首先介绍了频域中静力等效风荷载的确定方法,如GLF方法、LRC方法等。借鉴其概念和思想,完整提出了时域分析方法计算风致响应后的等效静力风荷载求解体系,通过对上海世茂中庭幕墙及采光顶支承体系的分析,证明了该方法的可行性。对于该方法出现的类似于GLF理论(Gust Loading Factor,阵风荷载因子法)的零均值问题,文章提供了直接比较等效荷载能否成为结构抗风设计控制因素的附加措施。
This paper first introduces some determining methods for calculating equivalent static wind load in frequent domain,such as GLF method,LRC method,and so on.Then the paper puts forward a new complete system used in the equivalent static wind load of the glass curtain wall,skylight and roof structures in time domain.With the analysis of the supported system of curtain wall and skylight of Shi Mao Project in Shanghai,the above method is verified to be feasible.Aimed at the zero mean wind loads and response which appeared in the GLF method,the article advances some adjunctive measures that are used to estimate directly whether the equivalent wind load is the key factor.
This paper first introduces some determining methods for calculating equivalent static wind load in frequent domain,such as GLF method,LRC method,and so on.Then the paper puts forward a new complete system used in the equivalent static wind load of the glass curtain wall,skylight and roof structures in time domain.With the analysis of the supported system of curtain wall and skylight of Shi Mao Project in Shanghai,the above method is verified to be feasible.Aimed at the zero mean wind loads and response which appeared in the GLF method,the article advances some adjunctive measures that are used to estimate directly whether the equivalent wind load is the key factor.
引文
[1]张相庭.结构风压和风振计算[M].上海:同济大学出版社,1985:5.
[2]星谷胜.随机振动分析[M].常宝琦译.北京:地震出版社,1977:127.
[3]Aas-Jakobsen K,Strommen E.Time domain buffeting re-sponse calculations of slender structures[J].Journal ofWind Engineering and Industrial Aerodynamics,2001,89:341-364.
[4]Aas-Jakobsen K,Strommen E.Time domain calculations ofbuffeting response for wind-sensitive structures[J].Journalof Wind Engineering and Industrial Aerodynamics,1998,74/76:687-695.
[5]武岳,郭海山,陈新礼,等.大跨度点支式幕墙支承结构风振性能分析[J].建筑结构学报,2002,23(5):49-55.
[6]江勇,王之宏,王肇民.柔性支承点支式玻璃幕墙的抗风设计与分析[J].建筑结构,2006,(10):91-94.
[7]Davenport A G.Gust loading factors[J].Journal of theStructural Division,ASCE,1967,93(ST3):11-34.
[8]Solari G.A generalized definition of gust factor[J].Journalof Wind Engineering and Industrial Aerodynamics,1990,36:539-548.
[9]GB50009,建筑结构荷载规范[S].
[10]Zhang Xingting.The current chinese code on wind loadingand comparative study[J].Journal of Wind Engineeringand Industrial Aerodynamics,1988,30:133-142.
[11]Kasperski M.Extreme wind load distributions for linearand nonlinear design[J].Engineering Structure,1992,14(1):27-34.
[12]Kasperski M,Niemann H J.The L.R.C.Method—ageneral method of estimation unfavorable wind load distri-butions for linear and non-linear structures[J].Journal ofWind Engineering and Industrial Aerodynamics,1992,(41/44):1753-1763.
[13]Kasperski M.Aerodynamics of low-rise building and codi-fication[J].Journal of Wind Engineering and IndustrialAerodynamics,1993,50:253-262.
[14]Holmes J D.Effective static load distributions in wind en-gineering[J].J Wind Eng Ind Aerodyn,2002,90:91-109.
[15]江勇.大跨柔性点支式幕墙及采光顶风致响应和等效风荷载研究[D].上海:同济大学土木工程学院,2006.
[2]星谷胜.随机振动分析[M].常宝琦译.北京:地震出版社,1977:127.
[3]Aas-Jakobsen K,Strommen E.Time domain buffeting re-sponse calculations of slender structures[J].Journal ofWind Engineering and Industrial Aerodynamics,2001,89:341-364.
[4]Aas-Jakobsen K,Strommen E.Time domain calculations ofbuffeting response for wind-sensitive structures[J].Journalof Wind Engineering and Industrial Aerodynamics,1998,74/76:687-695.
[5]武岳,郭海山,陈新礼,等.大跨度点支式幕墙支承结构风振性能分析[J].建筑结构学报,2002,23(5):49-55.
[6]江勇,王之宏,王肇民.柔性支承点支式玻璃幕墙的抗风设计与分析[J].建筑结构,2006,(10):91-94.
[7]Davenport A G.Gust loading factors[J].Journal of theStructural Division,ASCE,1967,93(ST3):11-34.
[8]Solari G.A generalized definition of gust factor[J].Journalof Wind Engineering and Industrial Aerodynamics,1990,36:539-548.
[9]GB50009,建筑结构荷载规范[S].
[10]Zhang Xingting.The current chinese code on wind loadingand comparative study[J].Journal of Wind Engineeringand Industrial Aerodynamics,1988,30:133-142.
[11]Kasperski M.Extreme wind load distributions for linearand nonlinear design[J].Engineering Structure,1992,14(1):27-34.
[12]Kasperski M,Niemann H J.The L.R.C.Method—ageneral method of estimation unfavorable wind load distri-butions for linear and non-linear structures[J].Journal ofWind Engineering and Industrial Aerodynamics,1992,(41/44):1753-1763.
[13]Kasperski M.Aerodynamics of low-rise building and codi-fication[J].Journal of Wind Engineering and IndustrialAerodynamics,1993,50:253-262.
[14]Holmes J D.Effective static load distributions in wind en-gineering[J].J Wind Eng Ind Aerodyn,2002,90:91-109.
[15]江勇.大跨柔性点支式幕墙及采光顶风致响应和等效风荷载研究[D].上海:同济大学土木工程学院,2006.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心