Experimental Study on Fire Resistance of H-Shaped Steel Beams With High Strength Bolted Joints
Experimental Study on Fire Resistance of H-Shaped Steel Beams With High Strength Bolted Joints
复制标题
高强螺栓连接H型钢梁耐火试验研究
DOI：
10.3130/aijs.75.2257
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
K. Harada
中科院分区：
文献类型：
--
作者：
T. Hirashima;K. Toyoda;A. Yatagai;Yuri Esaki;S. Tasaka;Masatomo Yoshida;H. Masuda;K. Harada
本文对高强螺栓节点H型钢梁在火灾作用下的结构性能进行了试验研究。为了研究钢梁的温度分布、摩擦型高强螺栓节点在高温下的转动性能以及带节点钢梁的临界温度与永久荷载的关系，在梁两端转动约束条件下进行了承重火灾试验。通过将节点的强度应用于简单塑性理论，将节点的临界温度近似为有节点钢梁的临界温度，这是因为梁节点的转动能力在高温下显著提高。
This paper presents a experimental study on the structural behavior of H-shaped steel beams with high strength bolted joints in case of fire. Load bearing fire tests were carried out under rotational restraint conditions at the both ends of the beam in order to investigate the temperature distribution of steel beams, the rotational performance of the friction type high strength bolted joints at high temperature, and the relation of critical temperature of steel beams with joints to permanent loads. Their critical temperatures of steel beams with joints are approximated by applying the strength of joints to the simple plastic theory because the rotational capacity of beam joints is remarkably improved at elevated temperature.