| 摘要 |
The present invention provides a small river prefabricated bridge which can reduce construction costs by being able to be prefabricated rapidly within a few days, and can secure high quality as well as can assure fastening force since assembly among factory-manufactured precast concrete members is connected by a steel wire on the spot and then is fastened in a body through a main reinforcement and a coupler. The small river prefabricated bridge according to a proper first embodiment of the present invention comprises: a lower slab which is arranged on a leveling concrete constructed on a floor of a small river; a left side and a right side abutment wall constructed in a vertical direction on both ends of the lower slab; and an upper slab mounted on an upper part of the left side and the right side abutment wall. Interconnection among the left side and the right side abutment wall, the lower slab and the upper slab are interlinked by a key and a key groove. A coating steel wire introduced with tensile force by stretching the steel wire is buried on the lower slab and the upper slab after the concrete is poured. Interconnection among the left side and the right side abutment wall, the lower slab and the upper slab, all of which are manufactured by a concrete member, are done by the coupler connecting an end of the main reinforcement buried in each member. |
