RBSM-Based Analysis of Crack Control Effectiveness of Polymer Concrete Overlay for Reinforced Concrete Structures

Yuliia Khmurovska; Petr Stemberk

doi:10.5755/j01.mech.23.6.18931

Authors

Yuliia Khmurovska Department of Concrete and Masonry Structures Faculty of Civil Engineering Czech Technical University in Prague
Petr Stemberk Department of Concrete and Masonry Structures Faculty of Civil Engineering Czech Technical University in Prague

DOI:

https://doi.org/10.5755/j01.mech.23.6.18931

Keywords:

crack pattern, engineered cementitious composite, nonlinear numerical analysis, overlay, reinforced concrete, Rigid Body Spring Model (RBSM)

Abstract

This paper presents a method for numerical analysis of the effectiveness of using the engineered cementitious composites with polyvinyl alcohol fibers for concrete cover repairs. The numerical analysis utilizes a nonlinear three-dimensional Rigid-Body-Spring Model which has strong capabilities to assess the crack width and crack patterns in the concrete structures. The applicability of the analysis is demonstrated on a reinforced concrete frame corner which is subjected to both the action of the positive and the negative bending moment. The effectiveness of the added overlays is shown in a comparison of the frame corner with and without the engineer cementitious composite overlays. The added overlays reduce the crack width and thus extend durability of rein-forced concrete structures.

DOI: http://dx.doi.org/10.5755/j01.mech.23.6.18931