中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2012, Vol. 31 ›› Issue (5): 919-923.DOI: 10.3969/j.issn.1674-0696.2012.05.01

• •    下一篇

连续刚构桥收缩徐变对桥面铺装应力的影响

余涛,何兆益,陈旭,董玲云   

  1. 重庆交通大学土木建筑学院,重庆400074
  • 收稿日期:2012-01-13 修回日期:2012-02-11 出版日期:2012-10-15 发布日期:2015-01-22
  • 作者简介:余涛(1987—),男,湖北孝感人,硕士研究生,主要从事道路结构方面的研究。E-mail:yt104424@163.com。
  • 基金资助:
    甘肃省交通运输厅科研项目( 2010H023) ; 重庆交通大学研究生创新基金项目( 2010( 下) -5)

Stress Analyses on Bridge Deck Pavement of Continuous Rigid Frame Bridge with Shrinkage and Creep

Yu Tao,He Zhaoyi,Chen Xu,Dong Linyun   

  1. School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2012-01-13 Revised:2012-02-11 Online:2012-10-15 Published:2015-01-22

摘要: 大跨径PC 连续刚构桥梁的收缩徐变效应,容易诱发桥面铺装时所产生地各种病害。结合甘肃西长凤高速公 路泾河特大桥,利用MIDAS /Civil 软件计算泾河特大桥的短( 长) 期收缩徐变效应,分别建立了桥墩与跨中的局部模 型,分析了收缩徐变对桥面铺装应力及其变化规律的影响。研究结果表明:收缩徐变的短期效益对桥面铺装影响明 显; 铺装结构产生较大的纵桥向拉应力,而剪应力较小; 与跨中区域相比,桥墩处受收缩徐变影响显著。

关键词: 连续刚构桥, 收缩徐变, 桥面铺装, 有限元分析

Abstract: The shrinkage and creep effect of large span continuous rigid frame bridge is obvious,which produces all sorts of diseases on bridge deck pavement.Based on calculation of the shrinkage and creep effect of the Jinghe super bridge short ( long) phase of by MIDAS /Civil,establishment of a bridge pier and mid-span local model through ANSYS respectively,analysis of the stress and laws of the deck and the changing with shrinkage and creep,the result shows that the short term effect on the bridge deck pavement is obvious; longitudinal direction tensile stress of pavement structure is large,and shear stress micro; compared to the deck on the local of mid-span,the pier region is significant for shrinkage and creep effects.

Key words: continuous rigid frame bridge, shrinkage and creep, bridge deck pavement, finite element analysis

中图分类号: