Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete Beams
In order to reduce on-site building time, the construction industry shows an increasing interest in stay-in-place formwork with a reinforcement function after concrete hardening, such as CFRP formwork confinement for columns. The current combined systems however do not answer the demand of the build...
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doaj-172cf814047d48b296529e8c1abe56a82020-11-25T01:06:48ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/648943648943Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete BeamsS. Verbruggen0O. Remy1J. Wastiels2T. Tysmans3Department of Mechanics of Materials and Constructions (MeMC), Faculty of Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, BelgiumDepartment of Mechanics of Materials and Constructions (MeMC), Faculty of Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, BelgiumDepartment of Mechanics of Materials and Constructions (MeMC), Faculty of Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, BelgiumDepartment of Mechanics of Materials and Constructions (MeMC), Faculty of Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, BelgiumIn order to reduce on-site building time, the construction industry shows an increasing interest in stay-in-place formwork with a reinforcement function after concrete hardening, such as CFRP formwork confinement for columns. The current combined systems however do not answer the demand of the building industry for a material system that is both lightweight and fire safe. High performance textile reinforced cement (TRC) composites can address this need. They can be particularly interesting for the shear reinforcement of concrete beams. This paper describes a preliminary analysis and feasibility study on structural stay-in-place formwork made of TRC. Comparative bending experiments demonstrate that a fully steel reinforced beam and an equivalent beam with shear reinforcement in TRC formwork show similar yielding behaviour, indicating that the TRC shear reinforcement system actually works. Moreover, the cracking moment of the concrete was more or less doubled, resulting in a much lower deflection in serviceability limit state than calculated. Digital image correlation measurements show that the latter is due to the crack bridging capacity of the external TRC shear reinforcement.http://dx.doi.org/10.1155/2013/648943 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S. Verbruggen O. Remy J. Wastiels T. Tysmans |
spellingShingle |
S. Verbruggen O. Remy J. Wastiels T. Tysmans Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete Beams Advances in Materials Science and Engineering |
author_facet |
S. Verbruggen O. Remy J. Wastiels T. Tysmans |
author_sort |
S. Verbruggen |
title |
Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete Beams |
title_short |
Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete Beams |
title_full |
Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete Beams |
title_fullStr |
Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete Beams |
title_full_unstemmed |
Stay-in-Place Formwork of TRC Designed as Shear Reinforcement for Concrete Beams |
title_sort |
stay-in-place formwork of trc designed as shear reinforcement for concrete beams |
publisher |
Hindawi Limited |
series |
Advances in Materials Science and Engineering |
issn |
1687-8434 1687-8442 |
publishDate |
2013-01-01 |
description |
In order to reduce on-site building time, the construction industry shows an increasing interest in stay-in-place formwork with a reinforcement function after concrete hardening, such as CFRP formwork confinement for columns. The current combined systems however do not answer the demand of the building industry for a material system that is both lightweight and fire safe. High performance textile reinforced cement (TRC) composites can address this need. They can be particularly interesting for the shear reinforcement of concrete beams. This paper describes a preliminary analysis and feasibility study on structural stay-in-place formwork made of TRC. Comparative bending experiments demonstrate that a fully steel reinforced beam and an equivalent beam with shear reinforcement in TRC formwork show similar yielding behaviour, indicating that the TRC shear reinforcement system actually works. Moreover, the cracking moment of the concrete was more or less doubled, resulting in a much lower deflection in serviceability limit state than calculated. Digital image correlation measurements show that the latter is due to the crack bridging capacity of the external TRC shear reinforcement. |
url |
http://dx.doi.org/10.1155/2013/648943 |
work_keys_str_mv |
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