期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2017
卷号：6
期号：2
页码：2988
DOI：10.15680/IJIRSET.2017.0602167
出版社：S&S Publications
摘要：Pultruded glass fibre reinforced polymer (GFRP) profiles are finding increasing applications in civilengineering structures, owing to the several advantages they offer over traditional materials. However, due to thecombustible nature of their polymer matrix, there are well-founded concerns about their behaviour at elevatedtemperature and under exposure to fire. These concerns are hindering the widespread acceptance of GFRP profiles,particularly in buildings, which need to comply with relatively strict requirements in terms of fire reaction and fireresistance behaviour. Even though the GFRP structural shapes are available, the designers of such component arefacing problem in the design since reliable design criteria is lacking. Thus there is an urgent need to understand thebehaviour of the GFRP structures and their components under various types of loading and support conditions. Thisthesis reports an experimental and analytical study by using finite element software ANSYS on the flexural behaviourof I–section beams made of GFRP pultruded profiles. Tests were first carried out on coupon specimens, in order todetermine the material properties of the pultruded GFRP specimens used in experimental investigation. Full scale testswere then conducted on simply supported beams with span 800 mm subjected to transverse load at the top flange midpoint.The first part of the paper is aimed at investigating the flexural behavior under service and failure conditionsexperimentally, the objective of the second part is to study the analytical behavior of the flexural members bysimulating the finite element model of the beams using SHELL element in ANSYS. The results obtained confirm that,due to the low Young’s modulus and high strength, the beam structural integrity is often governed by excessivedeformation criteria or local and global buckling criteria.
关键词：GFRP pultruded profiles; High-temperature properties; Fire resistance; Modelling; Design.
