The first frequency method of estimating the fatigue serviceability on small and medium span railway concrete bridge is discussed in this paper through three piecetest beam under fatigue load.
通过三片模拟梁试验实测结果，探讨了基频法评估铁路桥梁疲劳使用性能的可行性。
2
The residual strength is usually used to measure the fatigue failure, but so much work is needed to do and the cost is high and only one data is acquired for one test-piece.
剩余强度来度量疲劳损伤破坏准则清楚明了，但实验工作量大、费用高，并且一个试件只能得到一个数据；
3
Structure of the mount model is modified, and stiffness measurement and fatigue durability test were made to the test piece before and after the modification.