“桥上桥”是大件运输中通过中小跨径桥梁的一种方法。
Appling temporary steel bridge is a method of passing bridge which span is not bigness in heavy-cargo transportation.
介绍了目前西部农村建造中小跨径桥梁常用的桥型结构及特点；
The paper introduces the structure of the medium and small spanning bridges which is often used in western countrysides, and its characteristics.
在众多的中小跨径桥梁中，普通钢筋混凝土桥梁占据了一定优势并且有逐年递增的趋势。
In many medium and small span Bridges, reinforced concrete bridge occupied with certain advantages and there has been increasing trend.
分析了中小跨径桥梁常用结构及设计中存在的问题，针对问题从规范标准、设计方法、常用结构特点、荷载标准确定等方面提出了建议。
The paper analyzed the problems of common structure and design for middle and small span bridge, proposed some advice from standards, design methods and common structure characteristics etc.
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。
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。
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.
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