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本文对3块压型钢板-混凝土简支组合楼板进行了恒载条件下的火灾试验研究。对组合楼板的抗火性能与火灾行为进行了研究,考虑了组合楼板的跨度与抗剪连接件对简支组合楼板耐火极限的影响。试验结果表明:简支组合楼板的抗火性能较差,3块板的耐火极限均在30min左右;板的跨度对耐火极限的影响很大,而抗剪件的影响相对较小。
In this paper, three kinds of compression-type steel - concrete simply supported composite slab under a constant load fire test research. The fire resistance and fire behaviors of the composite floor were studied. The influence of the span of the composite floor and the resistance of the shear-resistant connection to the fire resistance of the simple supported composite floor were considered. The test results show that the fire resistance of the simple supported composite floor is poor, the fire resistance of the three plates is about 30 minutes, the span of the slab has a great influence on the fire resistance and the impact of the shear is relatively small.