钢-UHPC组合结构新型剪力件的抗剪性能
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曾丹,刘扬,曹磊
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Shear performance of innovative shear connectors in steel-UHPC composite structure
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Dan ZENG,Yang LIU,Lei CAO
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表 3 推出试件主要试验结果 |
Tab.3 Main push-out test results of specimens |
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剪力类型件 | 试件编号 | Pu/kN | Pavg/kN | δu/mm | δavg/mm | Dc | Dcavg | 最终破坏形态 | 栓钉 | A-1-1 | 430.65 | 446.06 | 1.27 | 1.315 | 2.248 | 2.507 | 一侧栓钉全部剪断,栓钉根部周围UHPC局部压溃 | A-1-2 | 461.47 | 1.36 | 2.765 | A-2-1 | 903.42 | 908.32 | 1.20 | 1.215 | 4.364 | 3.907 | 一侧栓钉全部剪断,栓钉根部周围UHPC局部压溃 | A-2-2 | 913.22 | 1.23 | 3.451 | 弧形钢筋 | C-1-1 | 1 290.88 | 1 168.11 | 0.56 | 0.605 | 2.036 | 2.179 | 竖向弧形钢筋下端周围UHPC压溃并脱落 | C-1-2 | 1 045.33 | 0.65 | 2.321 | C-2-1 | 1 569.13 | 1 475.46 | 0.61 | 0.645 | 3.292 | 3.291 | 竖向弧形钢筋下端周围UHPC压溃并脱落 | C-2-2 | 1 381.78 | 0.68 | 3.290 | C-3-1 | 1 746.05 | 1 801.26 | 0.96 | 0.855 | 6.194 | 5.981 | 竖向弧形钢筋下端周围UHPC压溃并脱落 | C-3-2 | 1 856.47 | 0.75 | 5.769 | 竖向弧形钢筋下端周围UHPC压溃并脱落, UHPC板上表面开裂 | 栓钉+弧形钢筋 | C-4-1 | 1 983.47 | 1 891.69 | 0.49 | 0.560 | 2.000 | 2.005 | 竖向弧形钢筋上端处UHPC板顶面开裂 | C-4-2 | 1 799.92 | 0.63 | 2.010 | C-5-1 | 2 664.87 | 2 611.67 | 058 | 0.695 | 3.100 | 3.108 | UHPC板竖向弧形钢筋处顶面和侧面开裂 | C-5-2 | 2 558.47 | 0.81 | 3.115 |
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