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...

考虑剪力滞和滑移效应的钢-混凝土连续组合箱梁自振特性

, PP. 88-94

Keywords: 桥梁工程,钢-混凝土组合连续箱梁,哈密顿原理,剪力滞效应,剪切变形,滑移

Full-Text   Cite this paper   Add to My Lib

Abstract:

?为了研究钢-混凝土连续组合箱梁自振特性,以哈密顿原理为基础,综合考虑连续组合箱梁剪力滞、滑移、剪切变形和转动惯量等多重因素的影响,推导出连续组合箱梁的控制微分方程及自然边界条件,提出一种能对工程中常用连续组合箱梁自振特性进行分析的计算方法。研究结果表明:构造的位移函数是正确和可靠的,所得计算公式比以往连续组合梁自振特性的计算理论有一定发展;界面滑移刚度对钢-混凝土连续组合箱梁自振频率影响很大,不能忽略;在剪力滞效应的作用下,连续组合箱梁的自振频率普遍减小,且剪力滞效应对连续组合箱梁自振频率的作用随频率阶次的升高而变大,随滑移刚度的增加而增大,当阶次较高且滑移刚度较大时,剪力滞效应的影响超过5.5%,不可忽视。

References

[1]  周凌宇.钢-混凝土组合箱梁受力性能及空间非线性分析[D].长沙:中南大学,2004.
[2]  ZHOU Ling-yu.Service Behavior of Steel-concrete Composite Box Beams and Triaxial Nonlinear Analysis[D].Changsha:Central South University,2004.
[3]  GARA F,LEONI G,DEZI L.A Beam Finite Element Including Shear Lag Effect for the Time-dependent Analysis of Steel-concrete Composite Decks[J].Engineering Structures,2009,31(8):1888-1902.
[4]  NIE Jian-guo,LI Fa-xiong,FAN Jian-sheng,et al.Practical Design Method for Steel-concrete Composite Beam Considering Shear Lag Effect[J].Engineering Mechanics,2011,28(11):45-51.
[5]  张彦玲,李运生,季文玉.简支组合箱梁在横向对称荷载作用下的解析解及剪力滞研究[J].石家庄铁道学院学报:自然科学版,2009,22(1):5-14.
[6]  ZHANG Yan-ling,LI Yun-sheng,JI Wen-yu.A Closed-form Solution of Load Effect and Study of Shear Lag Effect for Simple Steel-concrete Composite Box Beam[J].Journal of Shijiazhuang Railway Institute:Natural Science,2009,22(1):5-14.
[7]  GAN Ya-nan,ZHOU Guang-chun.Analysis of Free Vibration Characteristics of Thin-walled Box Girder Based on Energy Variation Principle[J].China Journal of Highway and Transport,2007,20(1):73-78.
[8]  戚菁菁,蒋丽忠,张传增,等.界面滑移、竖向掀起及剪切变形对钢-混凝土组合连续梁动力性能的影响[J].中南大学学报:自然科学版,2010,41(6):2334-2343.
[9]  ZHOU Wang-bao,JIANG Li-zhong,LIU Zhi-jie,et al.Closed-form Solution to Thin-walled Box Girders Considering the Effects of Shear Deformation and Shear Lag[J].Journal of Central South University,2012,19(9):2650-2655
[10]  周旺保,蒋丽忠,余志武.钢-混凝土组合箱梁粱段有限元法研究[J].计算力学学报,2013,30(2):255-260,274.
[11]  ZHOU Wang-bao,JIANG Li-zhong,YU Zhi-wu.The Finite Segment Method Study of Steel-concrete Composite Box Beams[J].Chinese Journal of Computational Mechanics,2013,30(2):255-260,274.
[12]  聂建国.钢-混凝土组合梁结构——试验、理论与应用[M].北京:科学出版社,2005.
[13]  NIE Jian-guo.Test,Theory and Application of Steel-concrete Composite Beam Structure[M].Beijing:Science Press,2005.
[14]  聂建国,李法雄,樊健生,等.钢-混凝土组合梁考虑剪力滞效应实用设计方法[J].工程力学,2011,28(11):45-51.
[15]  SUN F F,BURSI O S.Displacement-based and Two-field Mixed Variational Formulations for Composite Beams with Shear Lag[J].Journal of Engineering Mechanics,2005,131(2):199-210.
[16]  甘亚南,周广春.基于能量变分原理的薄壁箱梁自振特性分析[J].中国公路学报,2007,20(1):73-78.
[17]  QI Jing-jing,JIANG Li-zhong,ZHANG Chuan-zeng,et al.Effects of Interface Slip,Vertical Uplift and Shear Deformation on Dynamic Behavior of Steel-concrete Composite Continuous Beams[J].Journal of Central South University:Science and Technology,2010,41(6):2334-2343.
[18]  ZHOU Wang-bao,JIANG Li-zhong,LIU Zhi-jie,et al.Closed-form Solution for Shear Lag Effects of Steel-concrete Composite Box Beams Considering Shear Deformation and Slip[J].Journal of Central South University,2012,19(10):2976-2982.
[19]  周旺保,蒋丽忠,邵光强,等.钢-混凝土组合梁负弯矩区弹性畸变屈曲分析[J].中南大学学报:自然科学版,2012,43(6):2316-2323.
[20]  ZHOU Wang-bao,JIANG Li-zhong,SHAO Guang-qiang,et al.Elastic Distortional Buckling Analysis of Steel-concrete Composite Beams in Negative Moment Region[J].Journal of Central South University:Science and Technology,2012,43(6):2316-2323.
[21]  聂建国,谭 英,王洪全.钢-高强混凝土组合梁栓钉剪力连接件的设计计算[J].清华大学学报:自然科学版,1999,39(12):94-97.
[22]  NIE Jian-guo,TAN Ying,WANG Hong-quan.Strength of Stud Shear Connectors in Composite Steel-HC Beams[J].Journal of Tsinghua University:Science & Technology,1999,39(12):94-97.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133