Fire protection systems for building floors made of pultruded GFRP profiles: Part 1: Experimental investigations
Fire protection systems for building floors made of pultruded GFRP profiles: Part 1: Experimental investigations
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DOI：
10.1016/j.compositesb.2010.09.018
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发表时间：
2010-12
影响因子：
13.1
通讯作者：
J. Correia;F. Branco;J. Ferreira;Yu Bai;T. Keller
中科院分区：
文献类型：
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作者：
J. Correia;F. Branco;J. Ferreira;Yu Bai;T. Keller
本文介绍了玻璃钢拉挤型材在火灾下性能的试验研究结果，以研究其在满足耐火要求的情况下在建筑物地板上的结构应用的可行性。研究了用三种不同的防护涂层和水冷系统对玻璃钢拉挤异型材进行防火保护的可行性和有效性。试验方案包括动态力学分析(DMA)、热重和差示扫描量热(TGA/DSC)试验和玻璃钢管梁的耐火试验。无保护的GFRP梁在大约38分钟后失效，三种不同的被动保护系统在65-76分钟之间提供耐火性能，水冷系统提供至少120分钟的耐火性能。由于压应力和剪应力，梁的上部发生了破坏。这些实验的结果允许根据建筑规范要求定义每个被调查解决方案的应用领域。
This paper presents results of experimental investigations on the behaviour of GFRP pultruded profiles exposed to fire, in order to study the viability of their structural use in floors of buildings, taking into account the fulfilment of fire resistance requirements. The feasibility and efficacy of using three different protective coatings/layers, often used to protect structural steel, and a water cooling system to provide fire protection to GFRP pultruded profiles were investigated. The experimental programme included dynamic mechanical analyses (DMA), thermogravimetric and differential scanning calorimetry (TGA/DSC) experiments and fire resistance tests on GFRP tubular loaded beams. The unprotected GFRP beam failed after about 38min, the three different passive protection systems provided a fire resistance between 65–76min and the water cooling system provided a fire resistance of at least 120min. Failure occurred in the upper part of the beams, due to compression and shear stresses. Results of these experiments allowed defining the field of application of each investigated solution, according to building code requirements.