单边螺栓连接T形件-钢管节点高温下及高温后受拉性能

尤洋,王培军,孙乐乐,叶继红,姜健

Tensile behavior of one-side bolted T-stub to tube connection at fire and post-fire circumstances

Yang YOU,Pei-jun WANG,Le-le SUN,Ji-hong YE,Jian JIANG

表 3 试件的恒温加载高温试验结果

Tab.3 Steady-state test result of specimens

试件 θ/℃ FY/kN FU/kN 破坏模式 S1 500 17.2 27.2 钢管屈服破坏 S1 700 5.5 7.5 钢管屈服破坏 S2 500 68.5 113.2 端板屈服伴随螺栓破坏 S2 700 17.5 25.9 端板屈服伴随螺栓破坏 S3 500 23.1 38.7 端板屈服破坏 S3 700 8.0 14.6 端板屈服破坏 S4 500 43.2 53.7 螺栓拉断 S4 700 9.3 11.3 螺栓拉断 S5 500 18.7 36.1 钢管屈服破坏 S5 700 5.7 8.7 钢管屈服破坏 S6 500 68.6 110.6 端板屈服伴随螺栓破坏 S6 700 18.5 27.2 端板屈服伴随螺栓破坏