STEEL BOX GIRDER WITH IMPROVED CROSS-SECTIONAL STIFFNESS AND MOMENT RESISTANCE, AND METHOD TO CONSTRUCT BRIDGE USING SAME

摘要

The present invention relates to a steel box girder with an improved cross-sectional stiffness and a moment resistance, and a method to construct a bridge using the same, comprising: a panel-shaped lower flange unit on which a reinforced concrete is cured; a panel-shaped web panel formed lengthwise in both side units of the lower flange unit; a panel-shaped upper flange unit installed to connect web panels located to face one another; and a panel shaped perforated shear connection unit installed in a line extended from the web panel. The present invention has effects of reducing the number of work processes, decreasing a work time, remarkably increasing resistance to a moment applied to the steel box girder and saving construction costs by forming a plurality of through-holes in the perforated shear connection unit in the longitudinal direction, extending a shearing connection member on the top surface of the steel box girder of which cross section is approximately rectangular.;COPYRIGHT KIPO 2016