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组合结构桥梁是一种创新的结构形式,构造简洁、施工方便、充分发挥两种材料各自的性能特点。由于两种材料各有特点,将两者组合在一起时便有较多创新的空间。然而中小跨径的组合结构桥梁在我国的应用好像不够普遍,一方面可能是造价原因,但是随着钢材价格的降低,通过合理的结构形式其造价甚至可以低于混凝土桥梁,另一方面可能在于设计人员对组合结构认识不足,传统上都是仅考虑混凝土结构。
Combination of structural bridges is an innovative structure, the structure is simple, convenient construction, give full play to the performance characteristics of the two materials. As the two materials have their own characteristics, there will be more room for innovation when the two are combined together. However, the application of SMF bridges in China seems to be not universal enough. On the one hand, this may be the reason of cost. However, as the price of steel decreases, the cost can be even lower than that of concrete bridges through reasonable structural forms. On the other hand, Designers lack awareness of the combined structure, traditionally only consider the concrete structure.