| 海水中钢筋混凝土桥墩承载力分析 |
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| 引用本文： | 王钧利.海水中钢筋混凝土桥墩承载力分析[J].武汉理工大学学报(交通科学与工程版),2009,33(4):707-710. |
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| 作者姓名： | 王钧利 |
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| 作者单位： | 长安大学旧桥检测与加固技术交通行业重点实验室,西安,710064 |
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| 基金项目： | 国家西部交通建设科技项目资助 |
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| 摘 要： | 在海水环境中,由司:海浪及氯离子和硫酸盐的影响,使钢筋混凝土桥墩产生非均匀性腐蚀和损伤,再加上非均匀温度效应使桥墩处于偏心受压状态.因此,桥梁结构承载力分析除考虑材料的性能衰减、混凝土剥蚀和开裂,以及钢筋锈蚀等因素外,还要考虑钢筋非均匀锈蚀和保护层剥离的影响.文中利用结构分析软件考虑混凝土非线性和剥蚀及钢筋锈蚀,对钢筋混凝土桥墩的承载力进行非线性有限元分析.将计算结果与实测数据对比.分析结果显示:钢筋的锈蚀率和混凝土保护层开裂程度呈正比关系,但桥墩承载力降低很快,因此,当产生过宽的顺筋裂缝时,应及时采取修复措施.
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| 关 键 词： | 桥梁工程 钢筋混凝土桥墩 承载力 海水环境 钢筋锈蚀 |
Analysis on the Load-carrying Capacity of Reinforced Concrete Bridges Pier in Seawater |
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| Wang Junli.Analysis on the Load-carrying Capacity of Reinforced Concrete Bridges Pier in Seawater[J].journal of wuhan university of technology(transportation science&engineering),2009,33(4):707-710. |
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| Authors: | Wang Junli |
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| Institution: | Key Laboratory of Old Bridge Detection and Reinforcement Technique in Traffic Industry;Chang'an University;Xi'an 710064 |
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| Abstract: | In seawater environment,the reinforced concrete pier of bridge are damaged in non-uniformity by the sea wave and CI-and sulfate,which not only reduces the strength and the section of steel bar and concrete but also changes their failure mode.Taking the steel-concrete pier in the seawater for example,with the help of advanced non-linear function of the structural module in the structural analyze software-ANSYS,the non-linear property and denudation of the steel-concrete pier were analyzed.The load-carrying c... |
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| Keywords: | bridge engineering reinforced concrete pier of bridge load-carrying capacity seawater environment rustiness of reinforcement steel |
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