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...

V形刚构-拱组合桥静力有限元分析

, PP. 66-71

Keywords: 桥梁工程,三维弹性静力分析,有限元方法,V形刚构-拱组合桥,吊杆作用

Full-Text   Cite this paper   Add to My Lib

Abstract:

V形刚构-拱组合桥体系复杂,为了能更准确地认识和把握这种新型桥梁的力学性能,以小榄特大桥工程为例,建立精确的三维有限元模型,其中V形墩、梁、拱采用三维8节点实体单元,支撑采用空间梁单元和桁架单元,吊杆采用空间索单元进行离散。应用大型通用有限元软件ANSYS对其成桥阶段的主要工况进行弹性计算,同时也对该类桥型有可能出现的病害情况进行预测和模拟。据此,对比分析了各种情况下关键部位和构件的变形及受力状态。研究结果表明该桥整体受力以V形连续刚构为主,拱对主梁起加劲作用;预应力对结构的安全性至关重要;该桥在一定数量内吊杆断裂的情况下,主体结构具有很好的内力重分配能力;拱脚处受力复杂,要采取构造措施防止局部破坏。

References

[1]  沙培洲.V形刚构-拱组合桥体系自振特性及稳定性分析
[2]  [J].科技交流, 2006 (3):58 -62.SHA Peizhou.Dynamic Property and Stability Analysis of Arch Bridge with V-shaped Rigid-frame
[3]  [J].Journal of Science and Technology Exchange, 2006 (3): 58 -62.
[4]  ANSYSInc.ANSYSRelease9. 0 Documentation
[5]  [M].USA:ANSYSInc, 2004.
[6]  MAROVICP, NIKOLICZ, GALICM.Some Aspectsof2D and/or 3D NumericalModelling ofReinforced andPrestressed Concrete Structures
[7]  [J]. Engineering Computations, 2005, 22:684 -710.
[8]  中国工程建设标准化协会.CECS28∶90钢管混凝土结构设计与施工规程
[9]  [S].北京:中国计划出版社, 2003.China Engineering Construction Standardization Association.CECS28∶90 Specification for Design and Construction of Concrete-filled Steel Tubular Structures
[10]  [S]. Beijing:China Planning Press, 2003.
[11]  陈宝春, 欧智菁.钢管混凝土格构柱极限承载力计算方法研究
[12]  [J].土木工程学报, 2008, 41 (1):55 -63.CHEN Baochun, OU Zhijing.Calculation Method for the UltimateLoad Carrying Capacity of Concrete-filled Steel Tubular Lattice Columns
[13]  [J]. China CivilEngineeringJournal, 2008, 41 (1): 55 -63.
[14]  陈世民, 张飞, 白云.钢管混凝土拱桥施工及营运阶段非线性应力分析
[15]  [J].公路交通科技, 2009, 16(1):93 -98.CHENShimin, ZHANG Fei, BAIYun, Nonlinear Stress Analysis of CFST Arch Bridge in Construction and Service
[16]  [J].Journal of Highwayand Transportation Research and Development, 2009, 16 (1): 93 -98.
[17]  GUPTAPK, SARDASM, KUMARM S.Experimental and Computational Study of Concrete Filled Steel Tubular Columnsunder Axial Loads
[18]  [J].Journal of Constructional Steel Research, 2007, 63 (2):182 -193.
[19]  徐灿光.桥梁结构非线性有限元分析程序的研制及应用
[20]  [D].武汉:武汉大学, 2008.XU Canguang.Program Development and Application of Nonlinear Finite ElementAnalysis to Bridge Structure
[21]  [D].Wuhan:Wuhan University, 2008.
[22]  孙树礼.连续梁拱组合桥梁设计关键技术对策研究
[23]  [J].铁道标准设计, 2005 (5): 25 -28.SUN Shuli. Research on the Key Technologies Countermeasures in the Design of Combined Bridges with Prestressed Continuous Beam and Arch
[24]  [J]. Railway Standard Design, 2005 (5):25 -28.
[25]  张文学, 龙佩恒, 王丽群.预应力混凝土连续箱梁不同布索方式对比分析
[26]  [J].公路交通科技, 2009, 26(9):80 -84.ZHANG Wenxue, LONG Peiheng, WANG Liqun.Analysis of Different Tendon Layout Types for PC Continuous Box Girder
[27]  [J]. Journal of Highway and Transportation Research and Development, 2009, 26(9):80 -84.
[28]  王学军, 杜进生.FRP部分预应力混凝土梁受力全过程数值分析
[29]  [J].公路交通科技, 2008, 25 (11):97-100.WANG Xuejun, DU Jinsheng. Numerical Mechanical Analysis for Partial Prestressed Concrete Beams with FRP Tendons
[30]  [J]. Journal of Highway andTransportation Research and Development, 2008, 25 (11): 97 -100.
[31]  张杨永, 周云岗, 姜海西.基于ANSYS的超大跨度斜拉桥的索力模拟
[32]  [J].沈阳建筑大学学报:自然科学版, 2009 (5):909 -913.ZHANG Yangyong, ZHOU Yungang, JIANG Haixi.Cable Force Simulation for Super Long-span Cable-stayed Bridges Based on ANSYS
[33]  [J]. Journal of Shenyang Jianzhu University:NaturalScience Edition, 2009(5): 909 -913.
[34]  魏建东.宜宾小南门大桥的抢修加固与恢复工程
[35]  [J].公路, 2003 (4): 34 -38.WEIJiandong.Urgent Reinforcement and Restoration of Xiaonanmen Bridge in Yibin City
[36]  [J].Highway, 2003(4):34 -38.
[37]  易云焜, 王文杰.梁拱组合桥梁的拱梁荷载分担比例研究
[38]  [J].桥梁建设, 2008 (2): 34 -37.YI Yunkun, WANG Wenjie.Study of Load Sharing Ratio of Beam and Arch of Beam and Arch Hybrid Bridge
[39]  [J].Bridge Construction, 2008 (2):34 -37.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133