摘要
压型钢板混凝土组合楼板是由混凝土与压型钢板组成且共同受力的一种楼板形式,具有施工便捷、受力合理、材料性能充分利用等优点。为了研究火灾条件下压型钢板混凝土组合楼板的承载机制以及破坏模式,采用ISO-834标准升温曲线,对2块压型钢板混凝土组合楼板进行了火灾条件下的试验研究,考察了组合楼板在火灾作用下板顶与板底的裂缝开展和分布情况,揭示了火灾下组合楼板的破坏模式,给出了楼板内部不同位置处的挠度—时间曲线、温度—时间曲线。通过对试验结果的对比分析,证明了受拉薄膜效应力是建筑火灾楼板体系的最终承载力。
Steel deck-concrete composite slab is composed of concrete and steel deck, with its ad- vantages, such as convenient construction, force reasonableness, and full use of material proper- ties etc. In order to study the bearing mechanism and failure mode of steel deck concrete compos- ite slabs under fire, the experimental study on two steel deck concrete composite slabs under fire is made, through adopting the IOS-834 standard heating up curve, to investigate the crack devel- opment and distribution of composite slabs at the top and bottom of the board. The failure mode of composite slabs under fire is revealed. The curve of deflection-time and the curve of tempera- ture-time at different locations within the composite slabs are given in this paper. The tensioned membrane effect force is proved to be the final bearing force of the slab system under fire through contrastive analysis of test result.
出处
《防灾减灾工程学报》
CSCD
北大核心
2015年第1期44-50,共7页
Journal of Disaster Prevention and Mitigation Engineering
基金
国家自然科学基金项目(51378105)
江苏省产学研联合创新资金前瞻性联合研究项目(BY2012200)资助
作者简介
范圣刚（1974-），男，副教授，博士。主要从事钢结构理论、多高层结构抗震、钢结构抗火等方面的研究。Email：101010393@seu．edu．cn
