混凝土桥梁疲劳寿命与使用安全评估  

Fatigue Life and Safety Evaluation of Concrete Bridges

作　　者：卢萍 Lu Ping

机构地区：[1]中铁七局集团郑州工程有限公司,郑州450000

出　　处：《建筑技术开发》2016年第9期135-136,共2页Building Technology Development

摘　　要：我国的桥梁设计技术发展时期是在20世纪60年代初,在这段时间,桥梁建设正是逐步完善的时期,技术日渐成熟,我国的钢筋混凝土桥梁大部分建造在这个时期。而这些桥梁在经历了几十年的负荷与载重,突出了各种各样的问题,如桥面出现开裂、塌陷、桥台破损沉陷等一系列疲劳问题。所以,桥梁的疲劳寿命与使用安全越来越受到重视,为了能够更加安全的使用这些桥梁,必须能够对桥梁的疲劳寿命及其使用安全做出全面合理的评估。China＇s bridge design technology development period in the early 1960 s,in this period of time,the construction of the bridge is gradually perfect,the technology is mature with each passing day,the reinforced concrete bridges in our country most of construction in this period.However these bridges after decades of load and load,highlighting the various kinds of problems,such as deck cracking,collapse and abutment damaged the settlement and so on a series of fatigue problems.So the fatigue life of the bridge with the use of security more and more attention,in order to safer use of these bridges must to make a comprehensive and rational evaluation of bridge fatigue life and safe to use.

关 键 词：混凝土桥梁 疲劳寿命 使用安全评估 

分 类 号：TU528.1[建筑科学—建筑技术科学]