| 复合砂浆钢筋网加固约束梁抗剪性能试验 |
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| 引用本文： | 曾令宏,尚守平,万剑平,罗杰,卜良桃.复合砂浆钢筋网加固约束梁抗剪性能试验[J].桂林工学院学报,2008,28(1):34-38. |
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| 作者姓名： | 曾令宏 尚守平 万剑平 罗杰 卜良桃 |
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| 作者单位： | 1. 湖南大学,土木工程学院,长沙,410082
2. 湖南省交通科学研究院,长沙,410015 |
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| 基金项目： | 中国工程建设标准化协会资助项目([2005]建标协字第14号);交通部、湖南省交通厅资助项目(200514);湖南省科技计划重点项目(06SK4057) |
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| 摘 要： | 通过4根高性能水泥复合砂浆钢筋网加固的约束梁和2根未加固的对比梁的抗剪性能试验,研究了这种加固技术对混凝土约束梁抗剪性能的影响和作用,分析了抗剪加固对约束梁的开裂荷载、极限荷载、剪切刚度的影响。结果表明,利用这种方法进行加固,梁的抗剪承载力得到了显著提高,剪切刚度有一定程度的提高,同时加固措施对斜裂缝的发展有良好的约束作用。在试验研究的基础上,提出了加固梁的抗剪承载力建议公式,计算结果与试验结果吻合较好。
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| 关 键 词： | 约束梁 水泥复合砂浆钢筋网 抗剪 加固 |
| 文章编号： | 1006-544X(2008)01-0035-05 |
| 修稿时间： | 2006年9月13日 |
Reinforced Concrete Beams Shear Strengthened with High-Performance Ferrocement |
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| ZENG Ling-hong,SHANG Shou-ping,WAN Jian-ping,LUO Jie,BU Liang-tao.Reinforced Concrete Beams Shear Strengthened with High-Performance Ferrocement[J].Journal of Guilin University of Technology,2008,28(1):34-38. |
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| Authors: | ZENG Ling-hong SHANG Shou-ping WAN Jian-ping LUO Jie BU Liang-tao |
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| Abstract: | The shear responses of reinforced concrete(RC) beams strengthened with high-performance ferrocement are experimentally investigated.In the test four RC beams strengthened with ferrocement and one control specimen without strengthening are used.The beam performances are compared and assessed with particular emphasis on cracking behavior,shear capacity,and the modes of failure.The results show that ferrocement can obviously increase the crack-resisting capacity,improve the shear stiffness of beam and load-bearing capacity.Based on the test results,the design formula of shear load-carrying capacity is proposed.The calculation results are in good agreement with the experimental ones.The results can be used as reference design for beams strengthened with high-performance ferrocement. |
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| Keywords: | restrained beams ferrocement shear strengthing |
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