摘要
随着经济的发展 ,对既有桥梁的评估越来越受到重视。分析了引起混凝土桥结构承载能力不足的原因、混凝土结构材料力学性能随时间退化的规律以及材料力学性能退化与混凝土桥结构承载能力降低之间的关系 ;简述了目前国内外既有桥梁承载力评估的几种方法 ,着重介绍了基于振动测试的混凝土桥承载力评估方法 ;
With the rapid development of our national economy, great importance has been attached to the evaluation of existing bridges.Why the bearing capacity of existing bridges is not sufficient and how the mechanical performance of the materials of concrete structures decays with time are analyzed,and the relation between the bearing capacity of structures and the material property after a certain period of time is also studied. The paper briefly sums up the methods for the evaluation of existing bridges.The approach to the evaluation of the bearing capacity of concrete bridges in the light of vibration testing is recommended.Finally,it also puts forward some problems for further exploration.
出处
《国防交通工程与技术》
2004年第1期4-7,共4页
Traffic Engineering and Technology for National Defence
