全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

求解合理拱轴线的加权能量方法

, PP. 73-77

Keywords: 桥梁工程,拱桥,加权能量方法,合理拱轴线,优化设计,样条曲线

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过构造一种基于拱轴线变形能的多参数拱轴线优化方法,以处理控制参数较少的函数曲线难以使拱轴线与压力线重合的问题。该方法以加权能量函数作为优化目标,运用样条曲线逼近主拱圈压力线,并建立主拱圈位移影响矩阵来计算主拱圈的位移调整量。加权能量方法将各个单元的弯曲变形能总和作为优化目标,通过给予每个位置的单元弯曲变形能不同的加权系数来达到调整拱轴线上各点的弯矩分布的目的。算例分析说明求解的拱轴线坐标是合理的,应用平均加权和高斯加权方法可有效减少主拱圈弯矩。

References

[1]  范立础.桥梁工程
[2]  [M].北京:人民交通出版社,1988.FAN Lichu.Bridge Engineering
[3]  [M].Beijing:China Communications Press,1988.
[4]  裘伯永.拱轴线调优的一个简便方法
[5]  [J].铁道标准设计,1986,5(2):1-9.QIU Boyong.A Convenient Optimization Method of Arch Axis
[6]  [J].Railway Standard Design,1986,5 (2):1-9.
[7]  罗辉.一种新型拱轴线及拱圈优化设计
[8]  [J].桥梁建设,1997(2):14-17.LUO Hui.A New Type of Arch Axis Curve and Optimization Design of Arch Ring
[9]  [J].Bridge Construction,1997 (2):14-17.
[10]  蒋启平.三次样条插值确定拱桥合理拱轴线的方法探讨
[11]  [J].武汉理工大学学报:交通科学与工程版,2001,25(1):101-104.JIANG Qiping.A Study of Method of Determining Rational Arch Axis Using Three Order Spline Interpolation
[12]  [J].Journal of Wuhan University of Technology:Transportation Science and Engineering Edition,2001,25 (1):101-104.
[13]  何稀,李传习.拱轴线的统一数学描述探讨一三次NURBS表示法
[14]  [J].中外公路,2006,26(12):137-140.HE Hui,LI Chuanxi.Discussion of Uniform Mathematical Description of Arch Axis:Three Order NURBS
[15]  [J].Journal of China & Foreign Highway,2006,26 (12):137-140.
[16]  [J].公路交通科技,2007,24(6):80-85.LIU Yuxiang,GAO Jinghong.Topkis-Veinott Feasible Direction Method for Optimum Axis of Arch Bridge Based on Quadratic Spline Function
[17]  [J].Journal of Highway and Transportation Research and Development,2007,24 (6):80-85.
[18]  刘毓湘,高敬红.基于4次样条函数拱轴线优化设计的T-V求解法
[19]  宁云,颜东煌,涂光亚,等.基于APDL参数化语言实现拱轴系数m的优化设计
[20]  [J].长沙理工大学学报:自然科学版,2006,3(6):34-37.NING Yun,YAN Donghuang,TU Guangya,et al.Optimization Design of Arch-axis Coefficient Based on the APDL Parametric Language
[21]  [J].Journal of Changsha University of Science and Technology:Natural Science Edition,2006,3 (6):34-37.
[22]  李振邦.结构力学
[23]  [M].北京:人民交通出版社,1993.LI Zhenbang.Structural Mechanics
[24]  [M].Beijing:China Communications Press,1993.
[25]  李志文.最优化原理与方法
[26]  [M].北京:冶金工业出版社,1983.LI Zhiwen.Principle and Method of Optimization
[27]  [M].Beijing:Metallurgical Industry Press,1983.
[28]  文世鹏.应用数值分析
[29]  [M].北京:石油工业出版社,2001.WEN Shipeng.Applied Numerical Analysis
[30]  [M].Beijing:Petroleum Industry Press,2001.
[31]  裘伯永.拱轴线最优选择
[32]  [J].长沙铁道学院学报,1991,9(3):140-148.QIU Boyong.Arch Axis Shape Optimization
[33]  [J].Journal of Changsha Railway University,1991,9 (3):140-148.
[34]  肖汝诚,向海帆.斜拉桥索力优化的影响矩阵法
[35]  [J].同济大学学报,1998,26(3):236-240.XIAO Rucheng,XINAG Haifan.Influence Matrix Method of Cable Tension Optimization for Cable-stayed Bridges
[36]  [J].Journal of Tongji University,1998,26 (3):236-240.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133