2006, Volume 8, Issue 9
Strategic Study of CAE >> 2006, Volume 8, Issue 9
Research on Effects of Shape of Long-span Cable-supported Bridge on Mechanical Analysis of Surfacing under Vehicular Load
Intelligent Transportation System Research Center, Southeast University, Nanjing 210096, China
Next Previous
Abstract
Based on the Runyang Yangtze River Highway Bridge, which consiss of one cable-stayed bridge of South Branch and one suspension bridge of North Branch, the three-dimensional overall bridge model was established using the FEM numerical simulation to analyze the bridge deformation and mechanical performance. And a global-local analysis method was proposed to study the mechanical properties of surfacing. The shape of suspension bridge has large effects on the mechanical performances of the surfacing. The tensile stress obtained in this paper is significantly bigger than those by the traditional model. For the central section of the cable-stayed bridge, the mechanical indexes values of the surfacing obtained by this method are little bigger than those by the traditional model; otherwise, for the other sections of the main girder that undertake the horizontal component compression of the cable, the tensile stress values of the surfacing are little smaller than those by the traditional model.
Keywords
long-span cable-supported bridge ; surfacing ; FEM ; vehicular load ; tension stress
Figures
图1
图2
图3
图4
图5
图6
图7
图8
References
[ 1 ] 吕伟民.钢桥桥面沥青铺装的现状与发展[J].中外公路, 2002, 22 (1) :7~9 link1
[ 2 ] 王钧利.桥面铺装疲劳性能参数及可靠性[J].长安大学学报 (自然科学版) , 2004, 24 (3) :39~42 link1
[ 3 ] 杨若冲, 程刚.钢桥面铺装车辙破坏机理及成因分析[J].公路, 2004, (3) :52~55 link1
[ 4 ] 刘士林, 梁智淘, 侯金龙, 等.斜拉桥[M].北京:人民交通出版社, 2002 link1
[ 5 ] Charles Seim, Tim Ingham.Influence of wearing surfacingon performance of orthotropic steel plate decks[A].Transportation Research Board Annual Meeting[C], 2004
[ 6 ] Gunther G H, Bild S, Sedlacek G.Durabilidy of asphalticpavements on orthotropic decks of steel bridges[J].Construct Steel Research, 1987, (7) :5~106
[ 7 ] 茅荃.大跨径钢桥桥面铺装力学特性研究[D], 东南大学硕士学位论文, 2000
[ 8 ] 钱振东, 黄卫, 骆俊伟, 等.正交异性钢桥面铺装层的力学特性分析[J].交通运输工程学报, 2002, 2 (3) :47~51 link1
[ 9 ] 顾兴宇.悬索桥桥面沥青铺装层力学分析及结构设计研究[D], 东南大学博士学位论文, 2002
[10] Qian Zhendong, Huang Wei.Effects of parameteer ofasphalt concrete surfacing on mechanical property of pavinglayer[J].Journal of Southeast University, 2003, (1) :78~82
[11] 钱振东, 罗剑.正交异性钢桥面板铺装层受力分析[J].交通运输工程学报, 2004, (2) :10~18 link1
[12] 钱振东, 罗剑.沥青混凝土钢桥面铺装方案受力分析研究[J].中国公路学报, 2005, (2) :61~54 link1
[13] 杜昕.大跨径悬索桥与斜拉桥钢桥面铺装在竖向荷载静力作用下力学特性研究[D], 东南大学硕士学位论文, 2005
[14] 苏成, 韩大建, 王乐文.大跨度斜拉桥三维有限元动力模型的建立[J].华南理工大学学报, 1999, 27 (11) :51~56 link1
[15] 徐伟, 白海淘, 张肖宁.大跨径混凝土斜拉桥桥面铺装力学数值模拟分析[J].哈尔滨工业大学学报, 2003, 35 (6) :751~754 link1
[16] 方明山, 项海帆, 肖汝诚.超大跨径桥梁结构中的特殊力学问题[J].重庆交通学院院报, 1998, (12) :5~9 link1
[17] 季节, 龙佩恒, 王毅娟, 徐世法.用有效活载挠度确定钢筋混凝土桥面铺装层的厚度[J].北京建筑工程学院报, 2000, 16 (4) :61~64 link1
京公网安备 11010502051620号
