MATEC Web Conf.
Volume 146, 20189th International Scientific Conference Building Defects (Building Defects 2017)
|Number of page(s)||6|
|Section||Mechanical and Materials Engineering|
|Published online||22 January 2018|
Comparison of engineered cementitious composites and concrete for strengthening of concrete structural details using RBSM
Czech Technical University, Thákurova 7, 166 29 Prague 6, Czech Republic
* Corresponding author: email@example.com
This paper presents a numerical simulation and subsequent comparison of strengthening performance of an ordinary concrete overlay and an overlay made of engineered cementitious composite (ECC) with polyvinyl alcohol fibers (PVA). The comparison is performed on an L-shaped joint when the overlay is placed on the outer surface so that the applied bending moment causes tension in the overlay. The nonlinear numerical analysis is based on the three-dimensional rigid-body-spring model (RBSM). The results show the beneficial effect of the PVA fibers within the ECC matrix when the damage is distributed evenly so that only thin microcracks open. The observation is easy to obtain when the RBSM is employed. On the contrary, the overlay made of ordinary concrete fails due to localization of the damage into a single crack. The applicability of the RBSM is discussed.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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