同济大学学报（自然科学版）2011，Vol.39Issue(8)：1105-1112,1119,9.DOI:10.3969/j.issn.0253-374x.2011.08.002
寿命期内钢筋混凝土连续梁体系可靠度分析
System Reliability Assessment of Reinforced Concrete Continuous Bridges in Service Life
摘要
Abstract
A probabilistic-and finite element-based lifetime performance assessment method is proposed. A durability analysis program named concrete bridge durability analysis system(CBDAS) is written based on the numerical simulation methods relating to the deterioration of materials properties, reduction of sectional areas, and variation of structural performance. Then the statistical parameters of the random variables involved in the assessment of structural lifetime performance are recommended according to the present studies. Thus, the time-variant system reliability assessment method of reinforced concrete bridges is set up based on CBDAS and Monte-Carlo simulations. Finally, the lifetime performance of a reinforced concrete continuous bridge under chloride penetration is investigated by means of the time-variant system reliability.关键词
钢筋混凝土桥梁/寿命期/氯离子侵蚀/性能演变/数值模拟/随机变量/Monte-Carlo模拟/时变体系可靠度Key words
reinforced concrete bridges/ service life/ chloride penetration/ lifetime performance/ numerical simulation/ random variables/ Monte-Carlo simulations/ time-variant system reliability分类
建筑与水利引用本文复制引用
田浩,陈艾荣..寿命期内钢筋混凝土连续梁体系可靠度分析[J].同济大学学报（自然科学版）,2011,39(8):1105-1112,1119,9.基金项目
西部交通建设科技项目(2006 318 223 02-01) （2006 318 223 02-01）
国家“八六三”高技术研究发展计划(2007AA11Z104) （2007AA11Z104）
上海市科委重点攻关项目(072112005) （072112005）
