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大跨度平屋面结构的风振响应和风振系数研究
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摘要
随着科学技术的发展和施工工艺的进步,各种外形美观、结构新颖的大跨
    度柔性屋盖结构被广泛应用于体育馆、飞机库、剧场等公共建筑。风流经屋面
    时,会在屋面的大部分区域产生强大的吸力,并引起柔性屋面的风振。目前国
    内外对大跨度柔性屋盖结构的竖向风振研究很少,因此深入研究大跨度柔性屋
    盖结构的风荷载及风振响应具有极其重要的工程应用价值和学术研究意义。
     本文采用风洞模型试验和计算机数值计算相结合的方法,对大跨度平屋面
    结构的风振机理、风振形态、风振响应以及风振系数进行了系统研究,取得了
    一些有意义的结论。
     在风洞试验方面,设计制作了大跨度平屋面结构在四周封闭、四周敞开、
    有女儿墙、无女儿墙、墙体突然开孔各种不同情况下的刚性模型和气动弹性模
    型,解决了刚性模型同时测定上下表面风压而又不允许测压管影响周围风场的
    模型制作问题,建立并完善了考虑弗劳德数等一系列相似参数模拟的气动弹性
    模型的设计制作方法,获得了大跨度平屋面在各种情况下的屋面风压分布系数
    和风振响应规律,并进行了对比分析。
     在理论分析方面,利用刚性模型风洞试验获得的各种不同情况下屋面各节
    点的平均风压系数和脉动风压时程,在频域内和时域内进行了大跨度平屋面结
    构的风振响应分析。通过理论计算结果与气动弹性模型风洞试验结果的相互比
    较,指出采用时程分析法进行大跨度平屋面的风振响应分析所得结果是正确
    的,准定常假设在大跨度平屋面结构的风振响应分析中是不适用的,在准定常
    假设的基础上进行的模态分析所得风振响应规律和时程分析一致,但计算结果
    偏大许多。并由此从位移风振系数的角度提出了对基于准定常假设下的模态分
    析法的修正。最后通过对大跨度平屋面结构的风报系数的研究,提出了在实际
    工程设计中,采用位移风振系数来计算大跨度平屋面的等效静力风荷载既正确
    又方便使用,并且给出了大跨度平屋面结构在不同屋面刚度下的位移风振系数
    计算公式,以供设计参考。
Along with the development of science and technology, a number of long-span flexible roof structures with beautiful shapes and new structural systems are widely applied into the public constructions, for example, gymnasium, hangar and theater. When wind flows around roofs, the airflow will be separated to form a high suction zone, and the flexible roofs will suffer from wind-induced buffeting response. So far, a limited number of research papers are related to dynamic responses of long-span flexible roofs at home and abroad. So it is important to study on wind load and wind-induced dynamic response for long-span flexible roof structures in the field of engineering and research.
    Based on wind tunnel test and theoretical analysis, the vibration mechanism, vibration shape, dynamic response and wind load factor of long-span flat roofs subjected to wind excitation are analyzed systematically in this dissertation, and some valuable results are obtained.
    In the matter of wind tunnel tests, the rigid and aeroelastic models for long-span flat roof structures in these cases, with or without parapets, closed or unclosed and opening a hole suddenly, are designed. The question that wind pressure upper surface and under surface of rigid models can be tested at the same time and the flexible vinyl tubes connected to pressure taps can't influence the turbulence is solved commendably. The method to simulate the aeroelastic properties of prototype in consideration of a series of similarity coefficients including Froude number is established. Through the wind tunnel tests for rigid and aeroelastic models, the aerodynamic pressure coefficients and dynamic responses are obtained for these long-span flat roof structures. And a comparative analysis is also performed.
    In the matter of theoretical analysis, using the local mean wind pressure coefficients and time history of fluctuating pressures determined in wind tunnel, the wind-induced dynamic responses for long-span flat roof structures are calculated in
    
    
    
    
    frequency domain and time domain separately. Based on the comparison of the computed results and experimental dates, some important conclusions can be obtained. The results obtained from the analysis method in time domain agree with experimental dates much better than the results obtained from the spectral analysis method. The quasi-static assumption can not be adopted in the analysis on wind-induced dynamic responses for long-span flat roof structures. The rules of dynamic responses obtained by the spectral analysis method are similar to those obtained by the analysis method in time domain, but the value is much larger. So the spectral analysis method based on the quasi-static assumption is modified in the present study. Finally, the wind load factor of long-span flat roof structures is discussed, and an important piece of advice is inferred from it. For engineering design, it is better to use wind load factor defined the ratio of wind-induced total displacement to static displacement for computing the equivalent static wind load of long-span flat roof structures. And the formula to calculate the wind load factor is provided when
    the stiffness of the roof varies.
引文
[1] Kolousek v. et al. Wind Effects on Civil Engineering Structures. ELSEVIER Press, 1984.
    [2] A.Kareem, T. Kijewski 7~(th) US national Conference on Wind Engineering: A Summary of papers J.Wind Eng. Ind. Aerodyn.62(1996)81-129.
    [3] 孙炳楠等.9417号台风对温州民房破坏的调查.第七届全国结构风效应会议论文集,1995.
    [4] T. Stathopoulos. Wind Pressure Functions For Flat Roofs. J.Eng. Mech. Div. ASCE 107(1981)889.
    [5] T. Hongo, M.Yoshida, J.Wind Eng. JAWE 37 (1988) 173.
    [6] Y. Uematsu, M. Yamada and A. Sasaki. Wind-induced Dynamic Response and Resultant Load Estimation for a Flat Long-span Roof[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1996, 65:155-166.
    [7] J.D.Holmes, Wind loads on low-rise buildings-a review CRISO, Division of building Research, Highett, Victoria, Australia, 1993.
    [8] P.R. Sparks, J.Baker, J.Belville, D.C.Perry, Hurricane Elena Gulf Coast Aug.29Sept. 2, Committee on Natural Disasters, USA, 1985.
    [9] Federal Emergency Management Agency, Building Performance:Hurricane Andrew in Florida-Observations, Recommendations, and Technical Guidance, federal Insurance Administration, USA, 1992.
    [10] D.Meecham, D.Surry, A.G.Davenport. The magnitude and distribution of wind-induced pressure on hip and gable roofs. J.Wind Eng. Ind. Aerodyn. 38 (1991) 257-272.
    [11] Y.L.Xu, G.F. Reardon. Variation of wind pressure on hip roofs with roof pitch. J.wind Eng. Ind. Aerodyn. 73 (1998) 267-284.
    [12] 吴太成,陈钦豪.大型屋面风压风洞试验研究.第八届全国结构风效应会议论文集,1995.
    [13] 叶倩,徐有恒.大型弧状屋面风压风洞试验研究,第五届全国风工程及工业空气动力学学术会议论文集,1998,9.
    [14] M.Suzuki, S.Sanada, Y. Hayami, S.Ban. Prediction of wind-induced response of a semi-rigid hanging roof. J.Wind Eng. Ind. Aerodyn. 72 (1997) 357-366.
    
    
    [15] M.Saitoh, F. Kuroki. The analysis, design and construction of a space frame shell. Shell and Spatial Engineering, Pentech Press, 1984.
    [16] S.Kawamura, T. Kiuchi. Proposed design method for high rise pneumatic structures: Cylindrical type and Spherical type Shell and spatial Engineering. Pentech Press, 1984.
    [17] 顾志福,林荣生.北京体育中心游泳馆屋顶风荷载的试验研究.气动实验与测量控制,1992,6.
    [18] 朱乐东,陈伟,张锋,施宗城.体育场屋盖风载分布刚性模型风洞试验研究.第五届全国风工程及工业空气动力学学术会议论文集,1998,9.
    [19] 魏庆鼎.透风性女儿墙对尖屋顶风荷载的影响.气动实验与测量控制,1992,3.
    [20] 陈钦豪,吴太成.建筑群中建筑物间的相互气动干扰.第五届全国风工程及工业空气动力学学术会议论文集,1998,9.
    [21] 卢博坚,郑启明,吴坤徽.相邻建筑物之间距对周围环境风场的影响.第五届全国风工程及空气动力学学术会议论文集,1998,9.
    [22] 陈颖钊,倪振华等.邻近高楼对大跨坡屋顶低矮房屋风荷载的影响,第七届全国结构风效应会议论文集,1995.
    [23] 张相庭,工程结构风荷载理论和抗风设计手册,同济大学出版社,1990,10.
    [24] R.N.Sharma, P.J.Richards. The effect of flexibility on internal pressure fluctuations. J.Wind Eng. Ind. Aerodyn. 72 (1997) 175-186.
    [25] B.J.Vickery, P.N.Georgiou. A simplified approach to the determination of the influence of internal pressure on the dynamics of large span roofs. J. Wind Eng. Ind. Areodyn. 38 (1991) 357-369.
    [26] 曹国峰,林颖儒.上海八万人体育场抗风分析.第八届全国结构风效应会议论文集,1997.
    [27] Jensen M.. The Model—Law For Phenomena in Natural Wind, Ingenioren, International Edition, (2)4,1958.
    [28] Cook N.J. Wind—Tunnel Simulation of the Adiabatic Atmospheric Boundary Layer by Roughness, Barrier, and Mixing—Device Methods. J. Wind Eng. and Indus. Aerodyn.,3 (1987), P.157-176.
    
    
    [29] Cermak J.E. Wind—Simulation Criteria for Wind—Tests, ASCE, ST, Vol. 110, No.2., FEB, 1984, P.328-339.
    [30] Hunt J.C.R. and Fernholz H. Wind Tunnel Simulation of the Atmospheric Boundary Layer. J. Fluid Mech., 70, Part 3(Aug, 1975), P.543-559.
    [31] 丁宗梁,张华.北京西站主站房建筑风荷载模拟实验研究.建筑结构学报,Vol.17,No.5,1996,10.
    [32] 吴太成,陈钦豪.深圳机场航站楼扩建工程风压风洞试验研究.建筑结构学报,Vol.18,No.4,1997,8.
    [33] 钮珍南等.体育场挑蓬风荷载和内场风环境实验研究.第五届全国风工程及工业空气动力学学术会议论文集.1998,9.
    [34] 王国砚,张相庭.上海八万人体育场屋盖结构驰振分析研究.第八届全国结构风效应学术会议论文集,1997.
    [35] H. Yasui, H. Marukawa, J. Katagiri, A. Katsurnura, Y. Tamura and K. Watanabe. Study of wind-induced response of long-span structure. Journal of Wind Engineering and Industrial Aerodynamics, 1999, 83: 277-288.
    [36] Y. Uematsu, M. Yamada and A. Karasu. Design Wind Loads for Structural Frames of Flat Long-span Roofs: Gust Loading factor for a Structurally Integrated Type. Journal of Wind Engineering and Industrial Aerodynamics, 1997, 66: 155-168.
    [37] Y. Uematsu, K. Watanabe, A. Sasaki, M. Yamada and T Hongo. Wind-induced Dynamic Response and Resultant Load Estimation of a Circular Flat Roof. Journal of Wind Engineering and Industrial Aerodynamics, 1999, 83:251-261.
    [38] 程志军,楼文娟,孙炳楠,唐锦春.屋面风荷载及风致破坏机理.建筑结构学报,Vol.21,No.4,2000,4.
    [39] 沈世钊.大跨空间结构的发展—回顾与展望.土木工程学报,1998(3).
    [40] 刘锡良.十年来中国网架结构的发展.第六届空间结构学术会议论文集,广州,1992.
    [41] Hellman G., Uber die Bewegung der Luft in den untersten Schichten der Atmosphare, Meteorol Z.,34(1916),P.273.
    [42] Tennekes H., The Logarithmic Wind Profile. J. Atmos. Sci.,30(1973),P. 234-238.
    [43] Pasquill F., Some Aspects of Boundary Layer Description. J.Royal Meteorol,Soc, 98(1972), P.469-494.
    
    
    [44] Owen ER., Building in the Wind. J. Royal Meteorol. Soc,. 97(1974),P.396-413.
    [45] Simiu E. Logarithmic Profiles and Design Wind Speeds, J.Eng. Mech. Div., ASCE,99,NO.EM5,Oct. 1973,P.1073-1083.
    [46] 张相庭,结构风压和风振计算,同济大学出版社,1985.
    [47] Davenport A.G., The Spectrum of Horizontal Gustiness Near the Ground in High Winds. J.Royal Meteorol.Soc.,(1961),P.194-211.
    [48] Kaimal J. C.,et al., Spectral Characteristics of Surface Layer Turbulence. J. Royal Meteorol.Soc.,98(1972),P.563-589.
    [49] Lumley J. L., Panofsky H. A., The Structure of Atmospheric Turbulence, Wiley, New York, 1964.
    [50] 能源部电力规划设计管理局行业标准,架空送电线路杆塔结构设计技术规定(SDGJ94-90),1990.
    [51] Angus, J.Macdonald. Wind Loading on Buildings, 1975.
    [52] (日)伯野元彦主编,土木工程振动手册,李明昭等译,中国铁道出版社,1992.
    [53] E. Simiu and R.H. Scanlan. Wind Effects on structures. 2th ed., John Wiley & Sons. Inc. 1986.
    [54] 楼文娟.大跨越输电铁塔风振响应研究.浙江大学博士学位论文,1995,6.
    [55] A.G.Davenport. How can we simplify and generalize wind loads? Journal of Wind Engineering and Industrial Aerodynamics, 54/55(1995)657-669.
    [56] H.J.Gerhardt and C.Kramer. Effect of Building Geometry on Roof Windloading. Journal of Wind Engineering and Industrial Aerodynamics, 41-44(1992) 1775-1773.
    [57] P. Sachs. Wind Forces in Engineering, Second Edition. Peergamon Press, 1978.
    [58] P.C. Case and N. Isyumov. Wind loads on low buildings with 4:12 gable roofs in open country and suburban exposures. Journal of Wind Engineering and Industrial Aerodynamics, 1998, 77-78:107-118.
    [59] Y.L. Xu and G.F. Reardon. Variations of Wind Pressure on Hip Roofs with Roof Pitch. Journal of Wind Engineering and Industrial Aerodynamics, 1998, 73: 267-284.
    [60] A. Kareem and P.C. Lu. Pressure Fluctuations on Flat Roofs with Parapets. Journal of Wind Engineering and Industrial Aerodynamics, 1992, 41-44: 1775-1786.
    
    
    [61] J. Marighetti, A. Wittwer, M.D. Bortoli, B. Natalini, M. Paluch and M. Natalini. Fluctuating and Mean Pressure Measurements on a Stadium Covering in Wind Tunnel. Journal of Wind Engineering and Industrial Aerodynamics, 2000, 84:321-328.
    [62] S. Kawamura, T. Kiuchi. Proposed design method for high rise pneumatic structures: Cylindrical type and Spherical type Shell and spatial Engineering. Pentech Press, 1984.
    [63] E. Simiu and R.H. Scanlan. Wind Effects on structures. 2th ed., John Wiley & Sons. Inc. 1986.
    [64] Yukio Tamura, Takeshi Ohkuma, Hisashi Okada, JunKanda. Wind loading standards and design criteria in Japan. Journal of Wind Engineering and Industrial Aerodynamics, 83(1999)555-566
    [65] M.Kasperski and H.J.Niemann. The L.R.C. —Method, A General Method of Estimating Unfavourable Wind Load Distributions for Linear and Non-linear Structural Behaviour. Journal of Wind Engineering and Industrial Aerodynamics, 41-44 (1992) 1753-1763.
    [66] J.D.Holmes, B.Sc, PhD, FIEAust. Effective Distributions of Fluctuating and Dynamic Wind Loads. Australian Civil/Structural Engineering Transactions, Vol.CE38,No.2,3,1996.
    [67] E.C.C.Choi. Numerical modelling of gust effect on wind-driven rain. Journal of Wind Engineering and Industrial Aerodynamics, 72(1997) 107-116.
    [68] M.Majowiecki. Snow and wind experimental analysis in the design of long-span sub-horizontal structures. Journal of Wind Engineering and Industrial Aerodynamics, 74-76 (1998) 795-807.
    [69] M.Kazakevitch. The aerodynamics of a hangar membrane roof. Journal of Wind Engineering and Industrial Aerodynamics, 77-78 (1998) 157-169.
    [70] 张相庭,王志培,黄本才,结构振动力学,同济大学出版社,1994.
    [71] 张汝清,殷学纲,董明.计算结构动力学,重庆大学出版社,1987.
    [72] 杨有贵.随机函数及其在土建中的应用,中国建筑工业出版社,1989.
    
    
    [73] 庄表中,梁以德,张佑启.结构随机振动,国防工业出版社,1995.
    [74] 朱位秋.随机振动,科学出版社,1992.
    [75] 张景绘,王超.工程随机振动理论,西安交通大学出版社,1988.
    [76] D.B.纽兰著,方同等译.随机振动和谱分析概论,机械工业出版社,1980.
    [77] 罗定安.工程结构数值分析方法与程序设计,天津大学出版社,1995.
    [78] 刘永仁.结构分析中的程序设计,同济大学出版社,1992.
    [79] 钟万勰,何穷,刘正兴.数值计算方法,中国建筑工业出版社,1991.
    [80] 星谷胜(日)著,常宝琦译.随机振动分析,北京:地震出版社,1977.
    [81] 欧进萍,王光远.结构随机振动,北京:高等教育出版社,1998.
    [82] 张相庭.结构风压和风振计算.上海:同济大学出版社,1985.
    [83] 张相庭.工程结构风荷载理论和抗风计算手册.上海:同济大学出版社,1990.
    [84] 张相庭.高层建筑抗风抗震设计计算.上海:同济大学出版社,1996.
    [85] 张相庭.工程抗风设计计算手册.北京:中国建筑工业出版社,1997.
    [86] 张相庭.高耸结构风振系数的理论研究和应用.同济大学学报,1983(2).
    [87] 沈世钊,徐崇宝,赵臣.悬索结构设计.北京:中国建筑工业出版社,1997.
    [88] 埃米尔,希谬等著,刘尚培,项海帆,谢霁明译.风对结构的作用——风工程导论.上海:同济大学出版社,1992.
    [89] 项海帆.结构风工程研究的现状和展望.振动工程学报,1997(3).
    [90] 黄鹏,顾明,张锋,叶丰.上海金茂大厦静风荷载研究.建筑结构学报,1999(6).
    [91] 赵臣.大跨悬索屋盖结构风激动力性能,哈尔滨建筑大学博士学位论文,1995.
    [92] 建筑结构荷载规范(GBJ9-87),北京:中国建筑工业出版社,1988.
    [93] 刘更.结构动力学有限元程序,北京:国防工业出版社,1998.
    [94] 向阳,沈世钊,李君.薄膜结构的非线性风振响应分析.建筑结构学报,1999(6).
    [95] 王肇民,颜明忠.桅杆结构横风向振动响应研究.建筑结构学报,1996(3).
    [96] 杨庆山,沈世钊.悬索结构抗风设计(上、下).空间结构,1996(2,3).
    [97] 赵臣,张小刚,吕伟平.具有空间相关性风场的计算机模拟.空间结构,1996(2).
    
    
    [98] 李英民,顾岚.ARMA模型及参数识别技术在脉动风仿真中的应用.建筑工程学院学报,1992(3).
    [99] 李英民,赖明,赵青,张川.脉动风特性及其仿真研究.工程力学,1992(4).
    [100] 王之宏.分荷载的模拟研究.建筑结构学报,1994(1).
    [101] 宋宏忠,董宝,张坦贤.高层空间框架结构在强风下的时程反应分析.第十五届全国高层建筑结构学术交流论文集,武汉,1998.
    [102] G.Solari, P. Spinelli. Time-Domain Analysis of Tall Builfing Response to Wind Action. Proc. 3rd Int. Conf. on Tall Buidings. Hong kong and Guangzhou, Chian, 1984.
    [103] Y. Iwartani. Simulation of Multidimensional Wind Fluctuations Having any Arbitrary Power Spetran and Cross Spectra. J. Wind Engineering, No. 11,1982.
    [104] A.Iannuzzi. Artificial Wind Generation and Structural Response. Journal of Structure Engineering, 1987,113 (2).
    [105] M.Shinozuke, C.M.Jan. Digital Simulation of Random Processes and its Application. Journal of Sound and Vibration, 1972,Vol.25.
    [106] 陈勇,楼文娟,孙炳楠.高耸格构式结构风振时程分析.第五届全国风工程及工业空气动力学学术会议论文集.1998,9.
    [107] 赵经文,王宏钰.结构有限元分析.哈尔滨工业大学出版社.1988.4.
    [108] 石沅.振动量测与分析,同济大学出版社,1990.
    [109] 湖南大学等合编.建筑结构试验,中国建筑工业出版社,1991.
    [110] 张如一等.实验应力分析,机械工业出版社,1986.
    [111] 戴诗亮.随机振动实验技术,清华大学出版社,1984.
    [112] 李江河.航空风洞中大气边界层的模拟.第三届全国结构风效应学术会议论文集,1988.
    [113] 风洞实验法研究委员会,风洞实验法研究,日本建筑,1992.
    [114] 梁枢果,熊亮,瞿伟廉等.正方形截面高柔结构涡激振动与驰振的风洞试验研究.第五届全国风工程及工业空气动力学学术会议论文集.1998,9.
    [115] 顾明,王凤元,张锋.超高层建筑风荷载的试验研究.建筑结构学报,1999,12
    [116] 林志兴.建筑物风洞实验方法讨论.第八届全国结构风效应学术会议论文集,1997.
    
    
    [117] 林颖儒,徐晓明,王宁义,李剑锋.上海体育场马鞍型环状大悬挑空间钢管屋盖风荷载选定与计算.第八届全国结构风效应学术会议论文集,1997.
    [118] 哈鸿,林志兴,谢步瀛.建筑物表面风压的等压线生成.第八届全国结构风效应学术会议论文集,1997.
    [119] W. Pearce, D.M.Sykes. Wind tunnel measurements of cavity pressure dynamics in a low-rise flexible roofed building. Journal of Wind Engineering and Industrial Aerodynamics, 82(1999) 27-48.
    [120] J.Marighetti, A.Wittwer, M.De Bortoli, B.Natalini, M.Paluch, M.Natalini. Fluctuating and mean pressure measurements on a stadium covering in wind tunnel. Journal of Wind Engineering and Industrial Aerodynamics, 84(2000)321-328.
    [121] S.O.Hansen, P. Hojholt and K.Nielsen. Wind load on Grandstands around a Full Perimeter of a Stadium. Journal of Wind Engineering and Industrial Aerodynamics, 41-44(1992) 1423-1434.
    [122] B.Bienkiewicz and Y. sun. Wind-tunnel study of wind loading on loose-laid roofing systems. Journal of Wind Engineering and Industrial Aerodynamics, 41-44 (1992) 1817-1828.
    [123] Ahsan Kareem and P.C.Lu. Pressure Fluctuations on Flat Roofs with Parapets. Journal of Wind Engineering and Industrial Aerodynamics, 41-44 (1992) 1775-1786.
    [124] 李京伯.测量建筑物脉动风压的新系统及其应用.第五届全国风工程及空气动力学学术会议论文集,1998,9.
    [125] 颜大椿:实验流体力学,高等教育出版社,1992.
    [126] 陈艾荣,林志兴,巩海帆.大跨刚构桥梁气动弹性问题.第五届全国风工程及空气动力学学术会议论文集,1998,9.
    [127] Davenport, A.G. Note on the Distribution of the Largest Value of a Random Function with Application to Gust Loading, Proc. ICE(24), 1964,P187-196.

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