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为了降低桥梁建筑高度,从而达到降低桥头引道标高、引道坡度(或引道长度)的目的,采用板梁桥是一种可行的方法。通过牧野大桥的设计、施工和试验,证明跨径30m梁高(?)2m的钢绞线先张法预应力空心板桥在技术上是可行的,经济上是合理的,今后在跨线桥、各种立交桥及城市桥梁上能得到广泛应用。
In order to reduce the height of bridge construction and achieve the purpose of reducing the height of approach roadway and the approach roadway (or approach length), the adoption of girder bridge is a feasible method. Through the design, construction and test of the Makino Bridge, it is proved technically feasible and economically reasonable for prestressed steel slab bridges with a span of 30 m with a beam height (?) Of 2 m. In the future, , A variety of overpasses and urban bridges can be widely used.