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桥梁是高速公路的主要组成部分,随着我国高速公路建设的迅速发展,桥梁里程占高速里程的比例不断升高,桥梁的类型也越来越多,高速公路桥梁检测方法和评定显得尤为重要。但随着时间的推移,越来越多的桥梁进入老化阶段。从高速公路桥梁检测方法的现状出发,通过静载试验和动载试验分别测定高速公路桥梁结构的静力性能及动力性能,运用有限元MIDAS-Civil软件建立了桥梁的空间模型,通过分析计算得到了桥梁有关数据,为今后高速公路桥梁检测方法和评定提供了理论依据。
As the main part of the expressway, the bridge is the main part of the expressway. With the rapid development of expressway construction in our country, the proportion of the mileage of the bridge in the high-speed mileage is increasing and the types of the bridges are becoming more and more. The detection method and assessment of the bridge are very important. But over time, more and more bridges are aging. Based on the current situation of highway bridge detection methods, static and dynamic load tests are used to measure the static and dynamic performance of expressway bridge structures respectively. The bridge spatial model is established by finite element software MIDAS-Civil. The relevant data of the bridge provide a theoretical basis for the testing methods and assessment of freeway bridges in the future.