| 复合砂浆钢筋网加固桥梁构件试验研究 |
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| 引用本文： | 曾令宏,尚守平,万剑平,罗杰. 复合砂浆钢筋网加固桥梁构件试验研究[J]. 工业建筑, 2009, 39(2): 118-122 |
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| 作者姓名： | 曾令宏 尚守平 万剑平 罗杰 |
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| 作者单位： | 湖南大学土木工程学院,长沙,410082;湖南省交通科学研究院,长沙,410015 |
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| 基金项目： | 湖南省科技计划重点项目，交通部、湖南省交通厅科研基金，湖南省建设厅科技项目 |
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| 摘 要： | 对用高性能水泥复合砂浆钢筋网加固的混凝土桥梁受弯构件进行正截面等幅疲劳研究。通过对4根加固试件和2根未加固对比试件的试验,研究了这种加固技术对混凝土桥梁构件受弯疲劳性能的影响和作用。试验结果表明,加固后试件的疲劳变形有所减小,试件的疲劳抗裂性能也得到较大提高。介绍了采用这种加固方法的施工工艺,试验证实,加固施工只要满足简单的操作规程就不会发生剥离破坏。根据试验分析,得到了加固试件在疲劳荷载作用下正截面疲劳强度验算试验回归公式。
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| 关 键 词： | 桥梁构件 水泥复合砂浆钢筋网 加固 疲劳 裂缝 |
EXPERIMENTAL STUDY OF BRIDGE STRUCTURAL MEMBERS STRENGTHENED WITH HIGH-PERFORMANCE FERROCEMENT |
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| Zeng Linghong,Shang Shouping,Wang Jianpin,Luo Jie. EXPERIMENTAL STUDY OF BRIDGE STRUCTURAL MEMBERS STRENGTHENED WITH HIGH-PERFORMANCE FERROCEMENT[J]. Industrial Construction, 2009, 39(2): 118-122 |
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| Authors: | Zeng Linghong Shang Shouping Wang Jianpin Luo Jie |
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| Affiliation: | 1.Civil Engineering College of Hunan University;Changsha 410082;China;2.Hunan Communications Research Institute;Changsha 410015;China |
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| Abstract: | The bending response of bridge structural members strengthened with high-performance ferrocement considering fatigue load were experimentally investigated.The test included eight bridge structural members strengthened with ferrocement and two control members without strengthening.And performances of the members are compared and assessed with particular emphasis on cracking behavior,mid-span deflection,and the modes of failure and so on.The results showed that ferrocement could obviously increase the crack-r... |
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| Keywords: | bridge structural members ferrocement strengthening fatigue crack |
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