摘要
襄樊汉江长虹大桥经过多年运营,桥梁结构出现了病害,为了解在荷载作用下桥梁的实际工作状态及目前的承载能力,运用通用有限元程序对该桥进行了理论分析和验算,并在理论结果的指导下对该桥进行了荷载试验。结果表明,该桥目前使用性能较好,但由于裂缝的存在导致结构安全储备较低,可以通过加固提高桥梁的安全储备。研究方法可为同类桥梁提供参考。
The structure of Changhong Hanjiang River Bridge in Xiangfan has showed up deteriorations after operation over the years. To have a good understanding of the real working status and the current bearing capacity of the Bridge under the action of load, the universal finite element program was used to theoretically analyze and check the Bridge and the load tests were also made under the guidance of the theoretic results of the analysis and checking calculation. The results reveal that the current operational performance of the Bridge is good, however, the safety margin of the Bridge structure is rather low owing to the existence of cracks and the safety margin can be improved by strengthening of the Bridge. The research methods as provided in the paper may provide reference for the similar bridges.
出处
《世界桥梁》
北大核心
2008年第4期42-45,共4页
World Bridges
关键词
连续梁
结构分析
荷载试验
加固方案
continuous girder
structural analysis
load test
strengthening scheme
