Paper Title:
The Forming Principle of Reflection Cracks of Composite Lay in Old Bridge Reinforcement
  Abstract

In order to study the transverse reflection crack of concrete composite lay in old bridge reinforcement, aiming at the forming process of the reflection crack, the theoretical model of its peak tensile stress and its separation distance is presented, and its forming mechanism is analysed. Based on the theoretical model, the influence of the thickness overlay, and constraint under the concrete composite lay are studied to the transverse reflection crack. Based on these researched results, the peak tensile stress and its separation distances is calculated by given theoretical model , and the results reveal shrinkage cracks rely on the restraint condition , elastic modulus, shrinkage ratio and the thickness of the composite-slab.

  Info
Periodical
Chapter
Chapter 6: Frontiers of Manufacturing and Design
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
3370-3374
DOI
10.4028/www.scientific.net/AMM.71-78.3370
Citation
D. M. Zhang, X. D. Guo, M. L. Zhang, "The Forming Principle of Reflection Cracks of Composite Lay in Old Bridge Reinforcement", Applied Mechanics and Materials, Vols. 71-78, pp. 3370-3374, 2011
Online since
July 2011
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Price
$32.00
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