水泥工厂预均化库屋盖网壳结构风荷载体型系数研究
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摘要
近年来,随着空间结构的迅速发展和结构体型的不断创新,同时伴随着风灾的加剧,使得结构风工程越来越引起重视。结构风压系数的计算是结构风工程的主要目的之一。
本文采用基于计算流体动力学(CFD)的数值风洞方法来研究风荷载体型系数问题。首先采用数值风洞方法计算出球面屋盖风压系数,通过与现有的风洞试验结果及各国规范相关条款的比较,验证了数值风洞方法的可行性与可靠性。
然后针对三种跨度球面屋盖(跨度=66m、86m、96m)进行了数值风洞分析,比较了有无侧墙对球面屋盖风压系数的影响,确定了球面屋盖表面风压的分布规律,分区给出了球面屋盖体型系数取值建议。分析表明球面屋盖风压系数与屋盖跨度基本无关,且侧墙封闭与否对球面屋盖风压系数影响较小。
最后,采用数值风洞方法确定了不同风向角下两种跨度柱面屋盖(跨度= 49m、60m)风荷载体型系数,确定了不同区域柱面屋盖体型系数取值建议。分析表明柱面屋盖风压系数与屋盖跨度基本无关,而山墙封闭与否对柱面屋盖端区风压系数影响较大。
Due to rapid development of spatial structures and increasing of wind disaster, structural wind engineering for large span spatial structures arouses more attention recently. One of the main purposes of structural wind engineering is to determine the wind pressure coefficients for structures.
In this paper, the numerical wind tunnel method (NWTM), based on the Computational Fluid Dynamics, is applied to wind load analysis. The wind pressure coefficients of spherical shell roof were first determined by NWTM and the results agreed well with those of wind tunnel test and codes of different countries. The feasibility and reliability of numerical wind tunnel method were verified.
Then, numerical wind tunnel analysis is carried out to determine wind pressure on spherical shell roofs (span = 66m, 86m and 96m). The distribution of wind pressure on the spherical shell roofs was investigated and the wind pressure coefficients were given by regions for structure design. The effect of side walls on wind pressure coefficients was studied. It was shown that the wind pressure coefficients are nearly irrelevant with the span of the spherical shell roofs and the existence of the side walls.
Finnally, numerical wind tunnel analysis is carried out to determine wind pressure on cylindrical shell roofs (span = 49m and 60m). The distribution of wind pressure on cylindrical shell roofs was investigated and the wind pressure coefficients were given by regions for structure design. The effect of end walls on wind pressure coefficients was studied. It was shown that the wind pressure coefficients are nearly irrelevant with the span of the cylindrical shell roofs and the end walls has large effect on the wind pressure coefficients of the end regions.
本文采用基于计算流体动力学(CFD)的数值风洞方法来研究风荷载体型系数问题。首先采用数值风洞方法计算出球面屋盖风压系数,通过与现有的风洞试验结果及各国规范相关条款的比较,验证了数值风洞方法的可行性与可靠性。
然后针对三种跨度球面屋盖(跨度=66m、86m、96m)进行了数值风洞分析,比较了有无侧墙对球面屋盖风压系数的影响,确定了球面屋盖表面风压的分布规律,分区给出了球面屋盖体型系数取值建议。分析表明球面屋盖风压系数与屋盖跨度基本无关,且侧墙封闭与否对球面屋盖风压系数影响较小。
最后,采用数值风洞方法确定了不同风向角下两种跨度柱面屋盖(跨度= 49m、60m)风荷载体型系数,确定了不同区域柱面屋盖体型系数取值建议。分析表明柱面屋盖风压系数与屋盖跨度基本无关,而山墙封闭与否对柱面屋盖端区风压系数影响较大。
Due to rapid development of spatial structures and increasing of wind disaster, structural wind engineering for large span spatial structures arouses more attention recently. One of the main purposes of structural wind engineering is to determine the wind pressure coefficients for structures.
In this paper, the numerical wind tunnel method (NWTM), based on the Computational Fluid Dynamics, is applied to wind load analysis. The wind pressure coefficients of spherical shell roof were first determined by NWTM and the results agreed well with those of wind tunnel test and codes of different countries. The feasibility and reliability of numerical wind tunnel method were verified.
Then, numerical wind tunnel analysis is carried out to determine wind pressure on spherical shell roofs (span = 66m, 86m and 96m). The distribution of wind pressure on the spherical shell roofs was investigated and the wind pressure coefficients were given by regions for structure design. The effect of side walls on wind pressure coefficients was studied. It was shown that the wind pressure coefficients are nearly irrelevant with the span of the spherical shell roofs and the existence of the side walls.
Finnally, numerical wind tunnel analysis is carried out to determine wind pressure on cylindrical shell roofs (span = 49m and 60m). The distribution of wind pressure on cylindrical shell roofs was investigated and the wind pressure coefficients were given by regions for structure design. The effect of end walls on wind pressure coefficients was studied. It was shown that the wind pressure coefficients are nearly irrelevant with the span of the cylindrical shell roofs and the end walls has large effect on the wind pressure coefficients of the end regions.
引文
[1]王庆福,徐令和,赵振华等,石灰石预均化系统的优化设计及应用,水泥,2003,9:52~53
[2]曾学敏,水泥工业现状及发展趋势,中国水泥,2005,(4):11~14
[3]陈全德,崔素萍新型干法水泥技术原理与应用讲座(连载二)——第二讲原料预均化技术,建材发展导向,2003,(6):18~23
[4]高力明,关于陶瓷原料预均化技术的若干探讨,陶瓷学报,2006,27(4):402~407
[5]钟一律,翟东波,原料预均化堆场的设计及在水泥工业中的应用,连续输送技术,1994,(3):58~62
[6]陈书起,安宝军,刘良富等,水泥原料预均化方式的综合评述,中国建材科技,2001,(5) :116~123
[7]王业华,水泥原料预均化方式的比较与选择,水泥,1996,(12):1~3
[8]许青海,水泥厂生料均化的重要性及均化方式的选择,广东建材,2010,(11) ):31~32
[9]杨立胜,刘汝海,王庆福等,高效均化库的优化设计及应用,山东冶金, 2003,25(5) :51~53
[10]杨振文,圆形预均化库的设计,水泥技术,1992,(4):7~11
[11]韩仲琦,水泥工业生态化发展方向——面对资源、能源和环境挑战的我国水泥工业,中国建材,2005,(2):41~45
[12]梁伟海,新型干法水泥生产技术的现状及其发展前景浅析,中国高新技术企业,2010,(30):45~47
[13]钱若军,董石麟,袁行飞,流固耦合理论研究进展,空间结构,2008,14(1):1~13
[14]蒋杭君,美国的灾害救助问题与政府的救助政策浅析——以2005年卡特里娜飓风为例,商场现代化,2010,(6):162~164
[15]杨亚勤,大跨度空间结构在风荷载作用下的动力响应及舒适度研究:[硕士学位论文],武汉理工大学,2009
[16]李凌哲,王建国,张增军等,大跨屋盖结构荷载风振系数研究,河南科学, 2010,28(8):967~970
[17]王砚玲,高甫生,渗风计算中的风压系数影响因素分析,哈尔滨建筑大学学报,2001,34(4):87~90
[18]王晴文,上海市新建住宅室内污染物浓度调查及通风控制研究:[硕士学位论文],同济大学,2006
[19]杨伟,基于RANS的结构风荷载和响应的数值模拟研究:[硕士学位论文],同济大学,2004
[20]潘攀,大跨屋盖结构开孔风致效应数值模拟研究计:[硕士学位论文],北京交通大学,2010
[21]肖杰,响螺湾海河开启桥风荷载研究:[硕士学位论文],天津大学,2008
[22]钟震西,建筑物风荷载的数值模拟,国外建材科技,2007,28 (4):120~122
[23]顾明,杨伟,傅钦华等,上海铁路南站屋盖结构平均风荷载的数值模拟,同济大学学,2004,32 (2):141~146
[24]崔涛,大空间音乐厅建筑空调置换通风工程的CFD模拟分析:[硕士学位论文],中山大学,2009,9
[25]张永胜,禹门口黄河斜拉桥风环境数值模拟研究:[硕士学位论文],长安大学,2007
[26]姚伟宏,建筑物平均风压的数值模拟技术研究:[硕士学位论文],广东工业大学,2009
[27]吴迪、孙晓颖、武岳,某电厂煤仓球风荷载特性研究,第十三届全国结构风工程学术会议论文集
[28]唐建设、汤卓、吕令毅,圆形煤仓的风荷载CFD模拟,工程建设,2010,42(1):5~9
[29]G. Portela, L. A. Godoy, wind pressures and buckling of cylindrical steel tanks with dome roof, Journal of Constructional Steel Research, 2005. 808-824
[30]李元齐,大跨度空间结构典型形体风压分布风洞试验研究现状,空气动力学学报,2010,42(1):5~9
[31]王福军,计算流体动力学分析——CFD软件原理与应用,北京,清华大学出版社,2004.1
[32]李万平,计算流体动力学,武汉:华中科技大学出版社,2005.10~21
[33]周光炯、严宗毅、许世雄等,流体力学(上),北京:高等教育出版社,1992.164~169
[34]王福军,计算流体动力学分析——CFD软件原理与应用,北京,清华大学出版社,2004.1
[35]Li Guo, Dirk ROEKAERTS, Numerical Modeling of a Turbulent bluff-body Flowwith Renolds Stress Turbulent Models, Progress in Natural Science, 2005. 458~462
[36]S. Senthooran, Dong—Date Lee, S. Parameswaran, A Computational Model to Calculate the Flow-induced Pressures Fluctuations on Buildings, Journal of Wind Engineering and Industry Aerodynamic, 2004. 1131~1145
[37]R.Panneer Selvam, Computational of Flow Around Texas Tech Building Using k-εand Kato Launder k-εTurbulence Model. Engineering Structures, 1996. 856~860
[38]Wang Ze, Two Modificatory k-εTurbulence Model for Turbulent Swirling Flows, Journal of Hydrodynamics, 2003. 51~57
[39]中华人民共和国建设部,GB50009-2001,建筑结构荷载设计规范,北京:科学出版社,2006
[40]铜陵水泥厂石灰石预均化库穹顶结构的风洞试验报告,北京大学
[2]曾学敏,水泥工业现状及发展趋势,中国水泥,2005,(4):11~14
[3]陈全德,崔素萍新型干法水泥技术原理与应用讲座(连载二)——第二讲原料预均化技术,建材发展导向,2003,(6):18~23
[4]高力明,关于陶瓷原料预均化技术的若干探讨,陶瓷学报,2006,27(4):402~407
[5]钟一律,翟东波,原料预均化堆场的设计及在水泥工业中的应用,连续输送技术,1994,(3):58~62
[6]陈书起,安宝军,刘良富等,水泥原料预均化方式的综合评述,中国建材科技,2001,(5) :116~123
[7]王业华,水泥原料预均化方式的比较与选择,水泥,1996,(12):1~3
[8]许青海,水泥厂生料均化的重要性及均化方式的选择,广东建材,2010,(11) ):31~32
[9]杨立胜,刘汝海,王庆福等,高效均化库的优化设计及应用,山东冶金, 2003,25(5) :51~53
[10]杨振文,圆形预均化库的设计,水泥技术,1992,(4):7~11
[11]韩仲琦,水泥工业生态化发展方向——面对资源、能源和环境挑战的我国水泥工业,中国建材,2005,(2):41~45
[12]梁伟海,新型干法水泥生产技术的现状及其发展前景浅析,中国高新技术企业,2010,(30):45~47
[13]钱若军,董石麟,袁行飞,流固耦合理论研究进展,空间结构,2008,14(1):1~13
[14]蒋杭君,美国的灾害救助问题与政府的救助政策浅析——以2005年卡特里娜飓风为例,商场现代化,2010,(6):162~164
[15]杨亚勤,大跨度空间结构在风荷载作用下的动力响应及舒适度研究:[硕士学位论文],武汉理工大学,2009
[16]李凌哲,王建国,张增军等,大跨屋盖结构荷载风振系数研究,河南科学, 2010,28(8):967~970
[17]王砚玲,高甫生,渗风计算中的风压系数影响因素分析,哈尔滨建筑大学学报,2001,34(4):87~90
[18]王晴文,上海市新建住宅室内污染物浓度调查及通风控制研究:[硕士学位论文],同济大学,2006
[19]杨伟,基于RANS的结构风荷载和响应的数值模拟研究:[硕士学位论文],同济大学,2004
[20]潘攀,大跨屋盖结构开孔风致效应数值模拟研究计:[硕士学位论文],北京交通大学,2010
[21]肖杰,响螺湾海河开启桥风荷载研究:[硕士学位论文],天津大学,2008
[22]钟震西,建筑物风荷载的数值模拟,国外建材科技,2007,28 (4):120~122
[23]顾明,杨伟,傅钦华等,上海铁路南站屋盖结构平均风荷载的数值模拟,同济大学学,2004,32 (2):141~146
[24]崔涛,大空间音乐厅建筑空调置换通风工程的CFD模拟分析:[硕士学位论文],中山大学,2009,9
[25]张永胜,禹门口黄河斜拉桥风环境数值模拟研究:[硕士学位论文],长安大学,2007
[26]姚伟宏,建筑物平均风压的数值模拟技术研究:[硕士学位论文],广东工业大学,2009
[27]吴迪、孙晓颖、武岳,某电厂煤仓球风荷载特性研究,第十三届全国结构风工程学术会议论文集
[28]唐建设、汤卓、吕令毅,圆形煤仓的风荷载CFD模拟,工程建设,2010,42(1):5~9
[29]G. Portela, L. A. Godoy, wind pressures and buckling of cylindrical steel tanks with dome roof, Journal of Constructional Steel Research, 2005. 808-824
[30]李元齐,大跨度空间结构典型形体风压分布风洞试验研究现状,空气动力学学报,2010,42(1):5~9
[31]王福军,计算流体动力学分析——CFD软件原理与应用,北京,清华大学出版社,2004.1
[32]李万平,计算流体动力学,武汉:华中科技大学出版社,2005.10~21
[33]周光炯、严宗毅、许世雄等,流体力学(上),北京:高等教育出版社,1992.164~169
[34]王福军,计算流体动力学分析——CFD软件原理与应用,北京,清华大学出版社,2004.1
[35]Li Guo, Dirk ROEKAERTS, Numerical Modeling of a Turbulent bluff-body Flowwith Renolds Stress Turbulent Models, Progress in Natural Science, 2005. 458~462
[36]S. Senthooran, Dong—Date Lee, S. Parameswaran, A Computational Model to Calculate the Flow-induced Pressures Fluctuations on Buildings, Journal of Wind Engineering and Industry Aerodynamic, 2004. 1131~1145
[37]R.Panneer Selvam, Computational of Flow Around Texas Tech Building Using k-εand Kato Launder k-εTurbulence Model. Engineering Structures, 1996. 856~860
[38]Wang Ze, Two Modificatory k-εTurbulence Model for Turbulent Swirling Flows, Journal of Hydrodynamics, 2003. 51~57
[39]中华人民共和国建设部,GB50009-2001,建筑结构荷载设计规范,北京:科学出版社,2006
[40]铜陵水泥厂石灰石预均化库穹顶结构的风洞试验报告,北京大学