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| 摘要: |
| 通过改变压应力和钢纤维掺量,研究了钢纤维混凝土的压剪破坏,结果表明:钢纤维混凝土压剪破坏后具有明显的材料软化特征,可用双线性剪切软化曲线表示;钢纤维混凝土压剪强度与其压应力和钢纤维掺量有关,但该两者的增强效果并不叠加.提出了钢纤维混凝土压剪强度的计算公式,并用有限元方法进行了校核. |
| 关键词: 钢纤维混凝土,压剪破坏,材料软化,压剪强度 |
| DOI： |
| 分类号:TU528.572 |
| 基金项目: |
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| Study on Compression Shear Failure of Steel Fiber Reinforced Concrete |
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GUO Yan-hua LIU Jian-hong LI Zhi-ye
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| Abstract: |
| The compression-shear failure of steel fiber reinforced concrete(SFRC) was studied by varying compressive stress and steel fiber content.The obvious material softening character of SFRC after compression-shear failure,indicated by the bilinear shear softening curve,can be observed from test data.The compression-shear strength of SFRC is proven to be the function of compressive stress and steel fiber contents.However,the enhancing effect from compressive stress and steel fiber content is independent.According to the test data,the calculation formula of compression-shear strength was proposed and verified with the finite element method. |
| Key words: steel fiber reinforced concrete(SFRC),compression-shear failure,material softening,compression-shear strength |
