| 摘要: |
| 通过钢纤维高强高性能钢筋混凝土梁受剪试验，分析了混凝土强度等级、钢纤维掺量及箍筋配置对梁受剪承载力影响；结果表明：混凝土强度提高与钢纤维的掺入显著提高梁受剪承载力，箍筋充分发挥作用；结合梁受力模型，分析梁受剪承载力主要影响因素，基于国内外钢纤维高强钢筋混凝土无腹筋梁及有腹筋梁受剪试验数据，提出钢纤维高强钢筋混凝土有腹筋梁受剪承载力经验计算公式并验证，计算结果与实测值吻合较好。 |
| 关键词: 高强高性能，受剪试验，钢纤维混凝土，经验公式 |
| DOI： |
| 分类号: |
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| Experimental Study on Shear Resistance of Steel Fiber HRB500 High Strength Reinforced Concrete Beams and Calculation of Shear Capacity |
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BIAN Zhu， GE Qing yun
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| Abstract: |
| The shear tests of steel fiber high strength and high performance reinforced concrete beams are taken. The effects of the concrete strength grades, steel fiber contents and stirrups on shear capacity of the beams are analyzed. The results show that the shear capacity of the reinforced concrete beam is improved by increasing the concrete strength grade and adding steel fiber, the stirrups are involved in the shear resistance of the beams absolutely. Based on the experimental data of steel fiber high strength reinforced concrete beams with stirrups and without stirrups tested at home and abroad, the experience formula of shear capacity of steel fiber high strength and high performance reinforced concrete beams is proposed and verified. The calculated results agree well with experimental ones. |
| Key words: high strength and high performance shear experiment steel fiber concrete empirical formula |
