Fire Resistance of pultruded profiles of glass fiber reinforced polymer (GFRP) for rehabilitation applications: Experimental, numeric, and analytical study
Abstract
This paper presents a study about the fire behaviour of glass fibre reinforced polymer (GFRP) pultruded beams. Fire resistance tests were carried out in beams with a span of 1.3 m, exposed to fire according to the time-temperature curve defined in the ISO 834 standard. In these tests the effects of different types of fire exposure (one and three sides) and load levels, as well as the efficacy of different fire protection systems were evaluated. In order to study the evolution of temperature distributions during the fire resistance tests, a two-dimensional numerical model was developed using the commercial software ANSYS FLUENT. Also an analytical model was developed to estimate the mechanical response of the beams during fire exposure.
Keywords: composite materials; fire behaviour; experimental campaign; numerical simulation; analytical model.
Downloads
References
Correia, J. R. (2012), “Materiais compósitos de matriz polimérica”, em Ciência e Engenharia dos Materiais de Construção, IST Press, Lisboa.
Correia, J. R. (2004), “Perfis pultruidos de polímero reforzado com fibras de vidrio (GFRP). Aplicação de vigas mistas GFRP betão na construção”, Dissertação de Mestrado em Construção, Instituto Superior Técnico, Universidade Técnica de Lisboa.
Samanta, A. et al. (2004), “Thermo mechanical assessment of polymer composites subjected to fire”, The Robert Gordon University, Aberdeen.
Mouritz, A. P., Gibson, A. G. (2006), “Fire properties of polymer composite materials”, Springer, Dordrecht.
Correia, J. R. et al. (2013), “Mechanical behaviour of pultruded glass fibre reinforced polymer composites at elevated temperature: Experiments and model assessment”, Composites Structures, V. 98, pp. 303-313.
Ludwig, C. et al. (2008), “Thermal and Thermo mechanical Investigation of Polyester based Composite Beams”, Fouth International Conference on FRP Composites in Ci
vil Engineering, Zurich.
Correia, J. R. et al. (2010), “Fire protection system for building floors made of pultruded GFRP profiles. Part 1: Experimental investigations”, Composites: Part B, V. 41, pp. 617-629.
ISO 834-1 (1999), “Fire resistance tests. Elements of building construction - Part 1: General requirements”, International Standards Organization, Genève.
Software comercial ANSYS FLUENT, ANSYS, inc, versão 14.2, (2012).
Morgado, T. et al. (2013), “Comportamento ao fogo de vigas de compósito de GFRP”, Revista Internacional Construlink, n.º 32, pp. 4-19.
Website, http://www.engineeringtoolbox.com/dry-air-properties-d_973.html, (2015).
Bai, Y., Vallé, T., Keller, T. (2007), “Modeling of thermos physical properties for FRP composites under elevated and high temperature”, Composites Science and Technology, V. 67, pp. 3098-3109.
Bank, L. C. (2006), “Composites for construction: Structural design with FRP materials”, Wiley, Hoboken.
Mouritz, A. (2003), “Simple models for determining the mechanical properties of burnt FRP composites”, Materials and Engineering, V. 359, pp. 237-246.
_______________________________
License in effect from September 2020
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
.png)
