Analysis of composite floor cellular steel beams in fire
Analysis of composite floor cellular steel beams in fire
复制标题
复合楼板蜂窝钢梁火灾分析
DOI：
10.1260/2040-2317.1.3.161
复制
发表时间：
2010
影响因子：
1
通讯作者：
Sengkwan Choi
中科院分区：
文献类型：
--
作者：
A. Nadjai;N. Goodfellow;K. Tee;F. Ali;Sengkwan Choi
蜂窝钢梁在复合楼板中的应用日益普及，同时也引起了人们对防火安全工程设计的重视。关于它们在防火状态下的设计的建议仍然非常原始，这是由于在这一领域缺乏普遍的研究。在阿尔斯特大学，用两种不同钢材几何形状和加载条件的模型，在单调加载和高温下测试了四根复合蜂窝钢梁。本文建立了单元格组合梁的有限元模型和简单的手工计算方法，用于计算腹板柱处的剪切屈曲、火灾时的抗弯抗力、截面的挠度和温度分布。
The growing popularity of the use of cellular steel beams in composite floors comes at the same time as an increasing attention to the fire safety engineering design. The recommendation for their design in fire limit states remains very primitive and this is due to the lack of general research in this area. Four composite cellular steel beams were tested at the University of Ulster with two models of different steel geometries and loading conditions under monotonic loading and at elevated temperatures. This paper presents a finite element model and simple hand calculation methods to calculate the shear buckling at the web post, the bending resistance in fire, deflection and temperature distribution in the cross section of composite cellular beams.