| 钢纤维高强混凝土冲切板的挠度计算 |
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| 引用本文： | 林旭健,钱在兹,郑作樵.钢纤维高强混凝土冲切板的挠度计算[J].工程力学,2003,20(6):23-27. |
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| 作者姓名： | 林旭健 钱在兹 郑作樵 |
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| 作者单位： | 1. 福州大学,福建,福州,350002
2. 浙江大学,浙江,杭州,310027 |
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| 基金项目： | 福建省自然科学基金资助项目(E97009) |
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| 摘 要： | 通过钢纤维高强混凝土简支方板的冲切试验,得到冲切板的板面变形分布图及中心点荷载挠度曲线,认为板在冲切破坏之前发生的变形主要是弯曲变形。该变形反映了板在各个受力阶段的抗弯性能,也在很大程度上直接影响着冲切锥面上的应力分布和板的抗冲切能力。对冲切板在破坏前各受力阶段的挠度进行了计算,计算结果与实测曲线吻合良好。
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| 关 键 词： | 工程结构 试验研究 分析计算 钢纤维高强混凝土 冲切板 挠度 |
| 文章编号： | 1000-4750(2003)06-0023-05 |
CALCULATION OF THE DEFLECTION OF HIGH-STRENGTH STEEL FIBER REINFORCED CONCRETE SLAB SUBJECTED TO PUNCHING SHEAR |
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| LIN Xu-jian,QIAN Zai-zi,ZHENG Zuo-qiao.CALCULATION OF THE DEFLECTION OF HIGH-STRENGTH STEEL FIBER REINFORCED CONCRETE SLAB SUBJECTED TO PUNCHING SHEAR[J].Engineering Mechanics,2003,20(6):23-27. |
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| Authors: | LIN Xu-jian QIAN Zai-zi ZHENG Zuo-qiao |
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| Affiliation: | LIN Xu-jian1,QIAN Zai-zi2,ZHENG Zuo-qiao1 |
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| Abstract: | The deformation distribution and the load-deflection characteristic of high-strength steel fiber reinforced concrete square slab subjected to punching shear were obtained experimentally. It is assumed that the deformation of slab before punching shear failure is primarily caused by bending moment. The deformation not only reflects the flexure behavior of slab at every loading stage, but also affects the stress status on the surface of punching shear cone and the ultimate capacity of the slab. In this paper, the deformations of punching shear slabs at three loading stages before failure are calculated. Good agreement between the theoretical values and the testing curves is reached. |
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| Keywords: | engineering structure experimental study analysis high-strength steel fiber reinforced concrete punching shear slab deformation |
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