CONTINUOUS COMPOSITE BRIDGE CONSTRUCTION METHOD

摘要

A continuous construction method of a steel composite bridge is provided to construct a bridge economically by using section steel as a steel girder for constructing a steel composite bridge, to minimize the flexural negative moment occurring on a support such as a pier, to make long-span construction possible if steel girders have the same cross sectional size, and to have the smaller girder height in case of the same span. A continuous construction method of a steel composite bridge comprises the steps of: installing a bridge bearing to a pier(400), which is a lower structure of a bridge, to support a horizontal steel girder, and installing a horizontal steel girder to the top of the bridge bearing; manufacturing a vertical girder(100) composed of a steel girder and a steel deck panel in a module in a factory, and installing the steel girder and the steel deck panel in a construction site where a pier and an abutment are installed by arranging two steel girders at regular intervals and unifying a steel deck panel on the upper part of each steel girder using a fastener composed of a connecting bolt and a nut; fixing the vertical girder on the upper part of the horizontal steel girder; placing deck concrete on the upper part of the steel deck panel; and continuing the vertical girders fixed to the upper part of the horizontal steel girders.