| 考虑抗力时变特性的高桩码头结构全寿命可靠度分析 |
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| 引用本文： | 王元战,田双珠,黄长虹,孙艺.考虑抗力时变特性的高桩码头结构全寿命可靠度分析[J].港工技术,2011(5):21-25. |
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| 作者姓名： | 王元战 田双珠 黄长虹 孙艺 |
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| 作者单位： | [1]天津大学建筑工程学院天津市港口与海洋工程重点实验室,天津300072 [2]交通运输部天津水运工程科学研究院,天津300456 [3]海军工程大学天津校区,天津300450 [4]中交第四航务工程勘察设计院有限公司,广东广州510230 |
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| 基金项目： | 国家自然科学基金（50979069）; 天津市科技支撑计划重点项目（10JCYBJC03400） |
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| 摘 要： | 由于受海域自然环境、使用条件和内部材料等因素的影响,高桩码头构件易产生钢筋锈蚀、混凝土劣化、钢筋与混凝土间粘结力降低等现象,会使钢筋混凝土构件的抗力随时间不断降低,作用荷载随时间也不断发生变化.本研究将钢筋混凝土构件的抗力和作用荷载均视为随机过程,将其转化为设计使用期内年极值的随机变量,采用JC方法计算结构物的可靠度指...
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| 关 键 词： | 高桩码头 钢筋混凝土构件抗力 时变效应 全寿命周期 可靠度 |
Analysis on Full Life Reliability of Piled Wharf While Considering Resistance Time-varying Characteristic |
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| Wang Yuanzhan,Tian Shuangzhu,Huang Changhong,Sun Yi.Analysis on Full Life Reliability of Piled Wharf While Considering Resistance Time-varying Characteristic[J].Port Engineering Technology,2011(5):21-25. |
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| Authors: | Wang Yuanzhan Tian Shuangzhu Huang Changhong Sun Yi |
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| Institution: | 1.Tianjin Key Laboratory of Harbor and Ocean Engineering,School of Civil Engineering of Tianjin University,Tianjin 300072,China;2.Tianjin Research Institute of Water Transport Engineering, M.O.C.,Tianjin 300456,China;3.Naval University of Engineering,Tianjin Campus,Tianjin 300450,China;4.CCCC FHDI Engineering Co.,Ltd.,Guangzhou Guangdong 510230,China) |
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| Abstract: | Since piled wharf structural members are influenced by sea area natural environment,its＇ application condition and intrinsic material,some things always happen such as rebar corrosion,concrete degradation and the reduction of binding power between rebar and concrete.Then the resistance of reinforced concrete structural members decreases with time.In addition,the applied load varies with time.In the research,the resistance of RC members and the applied load are considered as random processes and transformed into random variables for annual extreme values in design period.JC method is adopted to calculate the reliability index of structures.Full life reliability analyzing method is established for piled wharf structure while considering RC members time-varying characteristic.Through an calculation example,it is shown that the above method is applied to calculate the structure reliability which varies with time.The research will provide the reference for the development and application of RC structure full life reliability design theory. |
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| Keywords: | piled wharf RC member resistance time-varying effect full life cycle reliability |
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