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 4 试件的恒载升温高温试验结果

Tab.4 Transient-state test result of specimens

试件 μ Fμ/kN 破坏模式 θF /℃ Δ/mm S1 0.50 14.1 钢管屈服破坏 614.8 10.5 S1 0.75 21.1 钢管屈服破坏 552.7 6.8 S2 0.50 59.4 端板屈服伴随螺栓破坏 639.7 22.3 S2 0.75 89.1 端板屈服伴随螺栓破坏 573.5 18.6 S3 0.50 23.9 端板屈服破坏 654.0 29.9 S3 0.75 35.8 端板屈服破坏 578.9 27.1 S4 0.50 37.1 螺栓拉断 572.1 10.3 S4 0.75 55.6 螺栓拉断 500.5 7.5 S5 0.50 14.6 钢管屈服破坏 673.3 92.0 S5 0.75 21.8 钢管屈服破坏 605.1 83.0 S6 0.50 60.1 端板屈服伴随螺栓破坏 569.1 21.2 S6 0.75 90.2 端板屈服伴随螺栓破坏 502.3 19.0