| 高强不锈钢绞线网-渗透性聚合砂浆加固梁抗弯裂缝试验研究 |
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| 引用本文： | 刘彦顺,李铁强,黄华,邢国华,刘伯权.高强不锈钢绞线网-渗透性聚合砂浆加固梁抗弯裂缝试验研究[J].四川建筑科学研究,2007,33(6):76-80,108. |
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| 作者姓名： | 刘彦顺 李铁强 黄华 邢国华 刘伯权 |
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| 作者单位： | 沧州交通勘测设计院,河北,沧州,061000;沧州市交通局,河北,沧州,061000:;长安大学,陕西,西安,710064 |
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| 基金项目： | 河北省交通厅科学技术项目计划 |
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| 摘 要： | 高强不锈钢绞线网-渗透性聚合砂浆加固技术是一项新型加固工艺，具有耐火、耐腐蚀、耐老化等优点。针对采用该工艺加固的河北沧州某大桥，采用缩尺比例模型，进行了4根该工艺加固的钢筋混凝土T形梁和1根对比梁的抗弯性能试验研究，分析了加固对梁裂缝的影响以及裂缝的发展情况。结果表明，采用该材料加固梁，可有效降低梁裂缝宽度，并延迟裂缝的出现。在试验研究的基础上。给出了此类加固梁最大裂缝宽度计算公式，可用于实际工程计算。
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| 关 键 词： | 高强不锈钢铰线网 渗透性聚合砂浆 抗弯加固 裂缝宽度 |
| 文章编号： | 1008-1933（2007）06-0076-05 |
| 收稿时间： | 2006-06-19 |
| 修稿时间： | 2006年6月19日 |
Experimental study on flexural cracks of RC beams strengthened with stainless steel wire mesh and permeability polymer mortar |
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| LIU Yanshun,LI Tieqiang,HUANG Hua,XING Guohua,LIU Boquan.Experimental study on flexural cracks of RC beams strengthened with stainless steel wire mesh and permeability polymer mortar[J].Building Science Research of Sichuan,2007,33(6):76-80,108. |
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| Authors: | LIU Yanshun LI Tieqiang HUANG Hua XING Guohua LIU Boquan |
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| Abstract: | Rehabilitation of RC members with stainless steel wire mesh and permeability polymer mortar is a new method of structural strengthening. Experiments were conducted to investigate the flexural behavior of four strengthened RC T-beams and one comparative RC T-beam. The influence factors of cracks and their development were analyzed. The experimental results show that the rehabilitation can effectively reduce the width of cracks and make the cracking time advancing. Based on the test results,the design formula of maximum crack width is proposed. It can be applied to the retrofit designs of RC structures. |
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| Keywords: | stainless steel wire mesh permeability polymer mortar flexural strengthening width of cracks |
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