新型煤气柜内压弯曲分析方法研究
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摘要
严格控制新型高压煤气柜内压弯曲,是保证结构气密性和正常运行的关键问题,其受力模型为具有多根环向加筋圆柱壳受局部内压作用的弹性弯曲.把弹性地基板条梁法拓展应用到该结构体系;同时对传统离散加筋法进行改进,考虑了壳体厚度、半径及加筋肋间距对结构环向刚度的影响.以30万m3新型煤气柜为例,采用弹性地基板条梁法、改进离散加筋法、密加筋法和有限元法进行了分析.在此基础上,给出了判定环向加筋圆柱壳密肋、稀肋的方法.分析结果表明,弹性地基板条梁法具有适用性强、精度高、效率好;当环向加筋间距dr>3.875(Rh)1/2时,改进离散加筋法计算效率较高.
The bending of a new typical gas holder under gas pressure is crucial to ensure the normal operation of the structure.It can be simplified to elastic bending of ring stiffened cylindrical shell,which is under partial internal pressure and has multiple circular reinforced ribs.Stripe Beam on Elastic Foundation Method(SBEFM)was extendable to the structure system.At the same time,traditional discrete stiffened method(TDSM)was improved.A gas holder of 300 000m3 was taken as an example for analysis.On this basis,the method judging ring stiffened cylindrical shell smeared or discrete was presented.The new analysis shows that SBEFM has a wider applicability,higher accuracy and better efficiency than other methods and the improved discrete stiffened method is effective when the ring spacing is greater than 3.875(Rh)1/2.
引文
[1]谷中秀.新型干式煤气柜[M].北京:冶金工业出版社,2010:2-3,40-47,142.GU Zhong-xiu.New typical gasholder[M].Beijing:Metallurgical Industry Press,2010:2-3,40-47,142.(In Chinese)
    [2]姜德进.正多边形干式贮气柜(M.A.N型)侧壁板在贮气压力下的内力分析[J].特种结构,1986(3):9-11.JIANG De-jin.The internal force analysis of polygon dry gas storage tank(M.A.N-type)sidewall panels under gaspressure[J].Special Structures,1986(3):9-11.(In Chinese)
    [3]姜德进.干式煤气柜走道平台及立柱的内力计算[J].工业建筑,1985(6):20-23.JIANG De-jin.The internal force calculation for walkway platform and column of dry gasholder[J].Industrial Construction,1985(6):20-23.(In Chinese)
    [4]游理华.曼型干式煤气柜柜体的计算理论与方法暨板的弹塑性弯曲和后屈曲分析[D].重庆:重庆建筑工程学院,1989:2-3.YOU Li-hua.Theory and method for calculation for cabinet of MAN type dry gas holder and elastic-plastic bending and postbuckling of plate[D].Chongqing:Chongqing Institute of Architecture and Engineering,1989:2-3.(In Chinese)
    [5]童根树,许钧陶.正多边形干式煤气贮柜的自振特性和地震响应分析[J].建筑结构学报,1997,18(5):51-58.TONG Gen-shu,XU Jun-tao.Natural vibration characteristics and earthquake response of MAN dry gasholders[J].Journal of Building Structures,1997,18(5):51-58.(In Chinese)
    [6]周伟.新型煤气柜的强度和稳定性分析[D].重庆:重庆大学资源及环境科学学院,2004:2-3.ZHOU Wei.Strength and stability analysis of the typical gas tank[D].Chongqing:Faculty of Resources and Environmental Science,Chongqing University,2004:2-3.(In Chinese)
    [7]但堂波.曼型干式煤气柜的受力性能研究[D].杭州:浙江大学建筑工程学院,2007:10-11.DAN Tang-bo.Study on the structural behavior of MAN type dry gas holder[D].Hangzhou:College of Civil Engineering and Architecture,Zhejiang University,2007:10-11.(In Chinese)
    [8]贾冬云,曹平周,姜德进.正多边形气柜立柱结构简化分析方法研究[J].工程力学,2010,27(6):252-256.JIA Dong-yun,CAO Ping-zhou,JIANG De-jin.Study on simplified analytical method for the column of regular polygon gasholder[J].Engineering Mechanics,2010,27(6):252-256.(In Chinese)
    [9]贾冬云,曹平周,姜德进,等.大型正多边形气柜壳体的试验研究[J].土木工程学报,2011,44(8):52-58.JIA Dong-yun,CAO Ping-zhou,JIANG De-jin,et al.Experimental study of the shell of a large-scale regular polygon gasholder[J].China Civil Engineering Journal,2011,44(8):52-58.(In Chinese)
    [10]姜德进,李伟.干式煤气柜若干问题的探讨[J].冶金动力,2008,4:19-22.JIANG De-jin,LI Wei.Discussion on some problems of dry gasholder[J].Metallurgical Power,2008,4:19-22.(In Chinese)
    [11]肖为.正交异性圆柱壳受局部外压时的稳定[J].应用力学学报,1987,4(4):11-22.XIAO Wei.Stability of orthotropic cylindrical shells under local external pressure[J].Journal of Applied Mechanics,1987,4(4):11-22.(In Chinese)
    [12]姜开春,王德满.加权参数法用于光滑和加筋旋转壳的静力分析[J].工程力学,1987,4(3):44-57.JIANG Kai-chun,WANG De-man.An application of M.W.R to the static analysis of smooth and reinforced circular shell[J].Engineering Mechanics,1987,4(3):44-57.(In Chinese)
    [13]中国科学院力学研究所,固体力学研究室板壳组.加筋圆柱曲板与圆柱壳[M].北京:科学出版社,1983:2-3.Institute of Mechanics,Chinese Academy of Sciences,Group of Solid Mechanics Research Shell.Stiffened cylindrical panels and cylindrical shells[M].Beijing:Science Press,1983:2-3.(In Chinese)
    [14]BRUSH D O,ALMROTH B O.Buckling of bars,plates,and shells[M].New York:McGraw-Hill,1975:177-178,272-276.
    [15]王明贵,黄义.双向密肋壳体结构风稳定性研究[J].工程力学,2000,17(4):44-49.WANG Ming-gui,HUANG Yi.Stability of rib-reinforced cylindrical shells under wind load[J].Engineering Mechanics,2000,17(4):44-49.(In Chinese)
    [16]PHILIPPE R.Applications des développements harmoniques au calcul des ouvrages hydrauliques métalliques[D].Liege:Universite de Liege Faculte des Sciences Appliquees,1989:25-42.(In French)
    [17]徐芝纶.弹性力学[M].3版.北京:高等教育出版社,1990:268-274.XU Zhi-lun.Elasticity[M].3rd ed.Beijing:Higher Education Press,1990:268-274.(In Chinese)
    [18]熊俊,孟少平,周臻.大直径预应力混凝土煤仓在内压荷载下的受力分析[J].煤炭学报,2010,35(2):222-226.XIONG Jun,MENG Shao-ping,ZHOU Zhen.Analysis in wall stress of large-diameter prestressed concrete coal silo under internal pressure[J].Journal of China Coal Society,2010,35(2):222-226.(In Chinese)
    [19]欧阳鬯,邱瑞强,张福保.关于承受轴压和侧压的离散偏心加筋圆筒的稳定性分析(I)——失稳前的弹性计算[J].复旦大学学报,1975(2):78-94.OU Yang-chang,QIU Rui-qiang,ZHANG Fu-bao.Stability of discrete eccentric stiffening cylinder with stand axial and lateral pressure[J].Journal of Fudan University,1975(2):78-94.(In Chinese)
    [20]丁大钧,刘忠德.弹性地基梁计算理论和方法[M].南京:南京工学院出版社,1986:170-172.DING Da-jun,LIU Zhong-de.The computational theory and method of beams on elastic foundation[M].Nanjing:Nanjing Institute of Technology Press,1986:170-172.(In Chinese)

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