• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 21 Issue 5
Oct.  2008
Turn off MathJax
Article Contents
PU Qianhui, GOU Hongye, ZHANG Junhua. Model Test of Corbel Cracking and Reinforcement of Urban Overpass[J]. Journal of Southwest Jiaotong University, 2008, 21(5): 648-653.
Citation: PU Qianhui, GOU Hongye, ZHANG Junhua. Model Test of Corbel Cracking and Reinforcement of Urban Overpass[J]. Journal of Southwest Jiaotong University, 2008, 21(5): 648-653.

Model Test of Corbel Cracking and Reinforcement of Urban Overpass

  • Received Date: 21 Mar 2008
  • Publish Date: 25 Oct 2008
  • In order to ensure the safe operation of urban overpasses,model tests of corbel cracking and reinforcement of the main bridge and ramp bridge of Niulong road overpass in Chengdu City were carried out respectively.By controlling the region,shape and size of cracks,corbel cracking of the overpass was simulated,and the factors to cause corbel cracking were analyzed.In addition,a comparative analysis of stresses in the corbel before and after strengthening prestressed reinforcement was made.Stresses under the anchorage of prestressed reinforcement were analyzed to investigate the effect of the reinforcement measure.The research shows that the reasons of corbel cracking are the great loss of prestress,the effect of loaded vehicles and the eccentric loading of vehicles,and the strengthening prestressed reinforcement measure is feasible.

     

  • loading
  • 范立础,徐光辉.桥梁工程[M].北京:人民交通出版社,2001:221-225.[2] 程立娟,李德建,戴公连.箱梁牛腿横向应力分布规律及有效计算宽度研究[J].长沙铁道学院学报,2002,20(4):21-26.CHENG Lijuan,LI Dejian,DAI Gonglian.The study on the distribution regularity of transverse stress and the effective calculating width of corbel in box beam[J].Journal of Changsha Railway University,2002,20(4):21-26.[3] 欧阳永金.厦门市仙岳路上跨金尚路立交桥牛腿应力的有限元分析[J].铁道科学与工程学报,2006,3(1):27-30.OUYANG Yongjin.Finite element analysis of stress in bracket of grade separation across Jinshang road on Xianyue road in Xiamen[J].Journal of Railway Science and Engineering,2006,3(1):27-30.[4] 杨俊杰.相似理论与结构模型试验[M].湖北:武汉工业大学出版社,2005:41-47.[5] 王光钦.弹性力学[M].北京:中国铁道出版社,2004:28.[6] 中交公路规划设计院.JTG 1362-2004公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:人民交通出版社,2004.[7] 勾红叶,蒲黔辉,周青虎,等.城市立交桥牛腿开裂及加固模型试验设计与计算分析[J].铁道建筑,2007(10):10-12.GOU Hongye,PU Qianhui,ZHOU Qinghu,et al.The design and calculation analysis of model test of cracking and reinforeement of the city flyover[J].Railway Construction,2007(10):10-12.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Article views(1656) PDF downloads(316) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return