Now this type of bridge is applied to more and more medium and small-span Bridges in cities, even large-span Bridges over rives.
目前在我国，越来越多的城市中小型桥梁，乃至跨江河的大桥都采用这种桥型方案。
The first frequency method of estimating the fatigue serviceability on small and medium span railway concrete bridge is discussed in this paper through three piece test 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。
Guangdong is located in the hilly areas in southern China, many roads and Bridges, with the rapid development of highways, small and medium span slab bridge widely used.
广东地处我国南方丘陵地带，公路桥梁众多，随着高速公路的迅猛发展，中小跨径空心板桥应用广泛。
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