2025 Volume 81 Issue 2 Article ID: 24-00134
A method for estimating stress and strain distribution generated over a long term in a cross-section due to volume changes such as drying shrinkage is proposed by an extended estimation method of chemical prestress and chemical prestrain of CPC (Chemically Prestressed Concrete) wall fences without symmetrical axis in cross section using a fiber model. These estimation strains are fairly good compared with the experimental results of two large-scale bridge deck specimens.
It is shown that the long-term shrinkage behaviors of CPC wall fences are estimated by the proposed method of chemically prestress introduced using expansive concrete and tensile stress due to drying shrinkage are determined by correlations such as the placement of the non-restraint member and the restraint member. The restraint member is occurred a reaction tensile force and also can be occurred cracking by concentrated stress. In addition, a simple estimation method is also proposed.
