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就双角钢连接节点在热诱导负荷下的试验结果进行了分析。2个梁组件被放入1个熔炉内进行测试,以模拟典型的建筑火灾情形。这些梁组件使用双角钢连接节点与熔炉外1个约束钢框架相连。试验参数包括火灾场景,负荷等级以及由梁板效应引起的综合作用。火灾试验中产生的数据表明,尽管只是简单的剪切连接的设计,双角钢连接节点有其固有的转动刚度并且能够传递热诱导弯矩。尽管产生了永久变形,试验组件并没有破坏,从而说明了双角钢连接节点具有较好的韧性。
The test results of double-angle steel joints under thermal induced load were analyzed. Two beam assemblies were tested in a furnace to simulate a typical building fire situation. These beam assemblies are connected to a restraining steel frame outside the furnace using double angle steel connections. The test parameters include the scene of the fire, the load rating, and the combined effect caused by the beam effect. The data generated in the fire test shows that, despite the simple design of the shear connection, the double angle steel joint has its inherent rotational stiffness and is capable of transferring heat-induced bending moments. Despite the permanent deformation, the test components were not damaged, indicating that the double angle steel joints have good toughness.