门式刚架端板节点在火灾下的力学性能研究  

Research on mechanical behaviors of end-plate joints in gabled frames in fire

作　　者：何余良[1] 徐伟良[1] 孙新阳[2] 方垒[1] 张洪亮[1] 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310032 [2]中铁大桥局集团有限公司,湖北武汉430000

出　　处：《浙江工业大学学报》2009年第3期342-345,354,共5页Journal of Zhejiang University of Technology

摘　　要：通过采用不同国家和组织的高温下钢材特性,先用ANSYS软件对门式刚架端板半刚性节点进行抗火模拟计算,得出了节点在高温下的M—θ—T曲线关系和临界温度,再与王永卫等[1]所获得高温下理论公式的计算结果进行比较,两者吻合较好,从而验证了ANSYS模型计算方法的正确性和可靠性,同时得出在进行ANSYS模型抗火计算时,采用EC3高温下钢材特性较为合理.Material properties at elevated temperature are introduced about different countries and organizations, and semi-rigid end-plate joints in gabled frames in fire is numerically simulated using ANSYS software. The M-θ-T curve relationship and critical temperature about the joints at elevated temperature are obtained. Then the calculated results are obtained based on the theritical formula in the reference. The results of the formula agree well with the ANSYS software, which proves that the calculation method by ANSYS model is accuracy and reliable, Meanwhile, it finds out that material properties at elevated temperature in EC3 is the most reasonable on the calculation by ANSYS model.

关 键 词：门式刚架 端板节点 θT-T曲线关系 临界温度 

分 类 号：TU392.5[建筑科学—结构工程]