Paper Title:
Law of Stiffness Degradation of the PC Box-Girder Bridges with Web Cracking
  Abstract

The webs of Continuous Rigid Frame Bridge suffer from cracking generally. In this paper, the mechanical characteristics of the box girder with cracked webs were studied. With reference of ChongQing JiangJin bridge, the 3-D solid FEM that employed with the smeared crack model was used to analysis the crack distribution. The law of reduced local stiffness and global stiffness on box girder with cracked sections was studied. At the same time, A sensitive analysis was performed to assess the effects of the effective prestress and reinforcement ratio on the cracking resistance and the reduced stiffness.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
1236-1239
DOI
10.4028/www.scientific.net/AMR.255-260.1236
Citation
H. D. Huang, Z. F. Xiang, R. S. Feng, "Law of Stiffness Degradation of the PC Box-Girder Bridges with Web Cracking", Advanced Materials Research, Vols. 255-260, pp. 1236-1239, 2011
Online since
May 2011
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jin Sheng Du, Hai Bin Liu
Abstract:In some long-span prestressed concrete box girder bridges, excessive deflections of main girders are often observed. These unacceptable...
1436
Authors: Wen Xing Wang, Qi Ming Guo
Abstract:This paper explains the static load test of a simple-support prestressed bridge. Deflection and stress are measured by the static load test...
1621
Authors: Yu Liang He, Yi Qiang Xiang, He Xin Ke, Li Si Liu
Chapter 4: Road and Bridge Engineering
Abstract:Taking the four-span 40m simply supported multi-box steel-concrete composite girder bridge in the ProjectⅡ of Qiushi Expressway in Hangzhou...
1547
Authors: Chun Sheng Wang, Lu Ping Liu, Mao Sen Wei
Abstract:The Yao Zhou downlink Viaduct damaged in a fire accident was repaired using steel plate and concrete composite strengthening (SPCCS)...
145