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...

大跨度钢桁架拱桥静动力相似模型

, PP. 82-89

Keywords: 桥梁工程,大跨度钢桁架拱桥,相似理论,损伤模拟,静动力相似模型

Full-Text   Cite this paper   Add to My Lib

Abstract:

?为了开展大型钢结构桥梁损伤模拟研究,基于相似理论,按照厚度与几何尺寸不同比例的畸变缩尺,针对九江长江大桥主桥三联拱桥部分开展大缩尺比的静动力模型试验研究。在验证模型结构有效性与可靠性的基础上,通过各类构件的不同损伤模拟研究结构的动力特性变化。研究结果表明:基于畸变相似比例设计的大跨度钢桁架拱桥大比例缩尺模型能很好地满足模型与实型之间的静动力相似关系;结构损伤与结构刚度变化之间存在高度非线性关系,同类构件的不同损伤之间不存在叠加关系;次要构件损伤虽可能在某阶特定振型中贡献相对较大,但其对结构整体刚度和频率影响不明显。

References

[1]  杨俊杰.相似理论与结构模型试验[M].武汉:武汉理工大学出版社,2005. YANG Jun-jie.Similarity Theories and Structural Model Tests[M].Wuhan:Wuhan University of Technology Press,2005 .
[2]  章关永.桥梁结构试验[M].北京:人民交通出版社,2010. ZHANG Guan-yong.Bridge Structural Testing[M].Beijing:China Communications Press,2010.
[3]  王戒躁.芜湖长江大桥整体模型(施工阶段)试验研究[J].桥梁建设,1999(4):26-31. WANG Jie-zao.Test Study of Integral Model of Wuhu Changjiang River Bridge at Construction Stage[J].Bridge Construction,1999(4):26-31.
[4]  胡建华,沈锐利,张贵明,等.佛山平胜大桥全桥模型试验研究[J].土木工程学报,2007,40(5):17-25. HU Jian-hua,SHEN Rui-li,ZHANG Gui-ming,et al.A Total Bridge Model Study of the Pingsheng Bridge in Foshan[J].China Civil Engineering Journal,2007,40(5):17-25.
[5]  刘永健,刘剑,刘君平,等.刚性悬索加劲钢桁梁桥施工阶段全桥模型试验研究[J].土木工程学报,2010,43(2):72-78. LIU Yong-jian,LIU Jian,LIU Jun-ping,et al.Integral Model Test of Steel Truss Bridge Stiffened with Rigid Cables in Construction Stage[J].China Civil Engineering Journal,2010,43(2):72-78.
[6]  胡志坚,孔祥韶,吴卫国.九堡大桥顶推施工模型试验研究[J].公路交通科技,2012,29(2):79-83. HU Zhi-jian,KONG Xiang-shao,WU Wei-guo.Model Test of Construction Jiubao Bridge with Incremental Launching[J].Journal of Highway and Transportation Research and Development,2012,29(2):79-83.
[7]  陈常松,颜东煌,田仲初,等.岳阳洞庭湖大桥模型动力相似理论分析[J].桥梁建设,2002(1):48-51. CHEN Chang-song,YAN Dong-huang,TIAN Zhong-chu,et al.Dynamical Similarity Theory Analysis to the Model of Yueyang Dongting Lake Bridge[J].Bridge Construction,2002(1):48-51.
[8]  刘爱荣,张俊平,赵新生,等.中山一桥模型试验及理论分析[J].中国公路学报,2005,18(3):75-79. LIU Ai-rong,ZHANG Jun-ping,ZHAO Xin-sheng,et al.Model Test of the First Zhongshan Bridge and Theoretical Analysis[J].China Journal of Highway and Transport,2005,18(3):75-79.
[9]  苏庆田,曾明根,吴冲.上海长江大桥索塔钢锚箱模型试验研究[J].工程力学,2008,25(10):126-132. SU Qing-tian,ZENG Ming-gen,WU Chong.Experiment Study on Steel-anchor-box of Cable-pylon in Shanghai Yangtze River Bridge[J].Engineering Mechanics,2008,25(10):126-132.
[10]  钟继卫,黄展军,王波,等.扭背索斜拉桥非对称索塔锚固区足尺模型试验研究[J].世界桥梁,2010(4):45-48. ZHONG Ji-wei,HUANG Zhan-jun,WANG Bo,et al.Study of Full-scale Model Test for Asymmetric Anchor Zone in Pylon of Cable-stayed Bridge with Twist Plane Back Stays[J].World Bridges,2010(4):45-48.
[11]  CHACON R,URIBE N,OLLER S.Numerical Validation of the Incremental Launching Method of a Steel Bridge Through a Small-scale Experimental Study[J].Experimental Techniques,2013,37:1-14.
[12]  JANKE L,CZADERSKI C,RUTH J,et al.Experiments on the Residual Load-bearing Capacity of Prestressed Confined Concrete Columns[J].Engineering Structures,2009,31(10):2247-2256.
[13]  王发祥,杨平,吴卫国,等.钢引桥结构模型分析及计算论证[J].武汉交通科技大学学报,1995,19(4):398-403. WANG Fa-xiang,YANG Ping,WU Wei-guo,et al.Structural Model Analysis and Verification for a Steel Bridge Approach[J].Journal of Wuhan Transportation University,1995,19(4):398-403.
[14]  刘涛,李爱群,丁幼亮,等.悬索桥主塔结构的有限元模拟方法研究:模型修正与验证[J].特种结构,2006,23(2):70-73. LIU Tao,LI Ai-qun,DING You-liang,et al.Finite Element Simulation Method Study for Pylons of Suspension Bridges:Modification and Verification for Finite Element Models[J].Special Structures,2006,23(2):70-73.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133