中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2007, Vol. 26 ›› Issue (5): 32-36.

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基于概率的桥梁劣化模型与维护策略关系

邵旭东1,刘新华1,刘代全2,彭建新2   

  1. 1.湖南大学桥梁工程研究所,湖南 长沙 410082;2.湖南省交通厅造价管理站,湖南 长沙 410011
  • 收稿日期:2006-08-09 修回日期:2006-11-16 出版日期:2007-10-15 发布日期:2015-01-22
  • 作者简介:邵旭东(1961一),男,浙江富阳人,教授,博导,从事大跨与新型桥梁结构及健康检测研究.E-mail:shaoxd@hnu.cn.
  • 基金资助:
    湖南省交通厅科技基金项目(2006-561)资助

Probability-Based Bridge Deterioration Model and Maintenance Strategy Relations

SHAO Xu-dong1 ,LIU Xin-hua1 ,LIU Dai-quan2 ,PENG Jian-xin1   

  1. 1.Institute of Bridge Engineering,Hunan University,Hunan Changsha 410082,China; 2.Hunan Province Transport Department Construction Cost Management Station,Hunan Changsha 41001 1,China
  • Received:2006-08-09 Revised:2006-11-16 Online:2007-10-15 Published:2015-01-22

摘要: 桥梁结构在服役过程中,随着时间的推移,抗力不断降低,其性能逐渐退化.提出桥梁在服役过程中可靠指标 的非线性指数劣化模型以及状态指标的非线性劣化模型,能够反映劣化过程中的高次变化规律,结合两种不同的周 期预防性维护策略,推导了桥梁服役期间任意时刻可靠度指标与状态指标的计算公式,研究了桥梁可靠度指标与状 态指标之间的相互关系.

关键词: 桥梁结构, 劣化模型, 预防性维护, 可靠指标, 状态指标

Abstract: Bridge structure resistance always reduces as time goes by under atmospheric attacks,and its performance deteriorates gradually in the service time.The non-linear exponential deterioration model of reliability index and the non-linear deterioration modd of condition index were proposed.They could reflect the higher mode change rule in the deteriorated process.A series of formulas of reliabihty index and condition index were derived by considering two different cyclical preventive maintenanee strategies.The interaction between the bridge reliability index and condition index was investigated.This work can be taken as basis for bridge life assessment and prediction.and for making reasonable maintenance decisions.

Key words: bridge structure, deterioration model, preventive maintenance, reliability index, condition index

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