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| 杭州湾跨海大桥70 m箱梁结构寿命随机分析 | |
| 引用本文： | 赵卓,滕海文,徐爱敏. 杭州湾跨海大桥70 m箱梁结构寿命随机分析[J]. 公路交通科技, 2009, 26(9) |
| 作者姓名： | 赵卓 滕海文 徐爱敏 |
| 作者单位： | 1. 郑州大学,土木工程学院,河南,郑州,450002 2. 北京工业大学,建筑工程学院,北京,100124 3. 杭州湾大桥工程指挥部,浙江,宁波,315327 |
| 基金项目： | 国家自然科学基金资助项目，国家科技支撑计划资助项目，北京市科技计划课题资助项目 |
| 摘 要： | 基于70 m整孔预制箱梁的结构、材料及海域环境特点,结合现场箱梁结构保护层厚度、氯离子初始浓度以及氟离子扩散系数等的实际检验检测结果,对混凝土保护层厚度、氯离子初始浓度、氯离子扩散系数、氯离子临界浓度以及结构表面氯离子浓度等各类耐久性影响因素的不确定性进行概率统计分析,确定其统计分布特征.通过MonteCarlo随机模拟,得出了70 m箱梁结构使用寿命的近似概率密度分布,通过假设检验,确定其服从对数正态分布,并给出在不同保证率情况下箱梁结构设计使用寿命的取值. |
| 关 键 词： | 桥梁工程 服役寿命 随机分析 结构耐久性 |
Stochastic Analysis of Durability of 70 m Box Girder Structure of Hangzhou Bay Bridge |
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| ZHAO Zhuo,TENG Haiwen,XU Aimin. Stochastic Analysis of Durability of 70 m Box Girder Structure of Hangzhou Bay Bridge[J]. Journal of Highway and Transportation Research and Development, 2009, 26(9) | |
| Authors: | ZHAO Zhuo TENG Haiwen XU Aimin |
| Affiliation: | 1.School of Civil Engineering;Zhengzhou University;Zhengzhou Henan 450002;China;2.School of Architecture and Civil Engineering;Beijing University of Technology;Beijing 100124;3.Hangzhou Bay Bridge Engineering Headquarters;Ningbo Zhejiang 315327;China |
| Abstract: | Based on the characteristics of structural design,material,corrosiveness of service environment of 70 m box girder structure of Hangzhou Bay Bridge and the site detection results of concrete cover thickness,initial concentration and diffusion coefficient of chloride ions,the stochastic characters of durability influencing factors such as concrete cover thickness,initial concentration and critical concentration of chloride ions,chloride ions diffusion coefficient in concrete,and structural surface concentrat... |
| Keywords: | bridge engineering service life stochastic analysis structural durability |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |