BOLT-JOINTED POINT-TO-POINT CONNECTION STRUCTURE OF GIRDERS THAT USE PIPES OR ROLLED STEEL AS WEB MEMBERS

摘要

The present invention relates to a point-to-point connection structure that is easily to assemble, excellent in structural efficiency, and capable of reducing ground pressure and pullout fracture in connection between a pressure plate and an upper beam member and a lower beam member of prestress concrete composite girder point-to-point in which a pipe or rolled steel is used as a web member. According to the related art, too many studs need to be welded and attached for withdrawal force resistance and a lot of drilling and steel bar bending are required for steel bar insertion into the pressure plate. In addition, the related art is disadvantageous in terms of ground pressure and pullout fracture distribution regions. According to the present invention, an inside pressure plate and an outside pressure plate forming a pair are installed in upper beam member and lower beam member members and then bolt connection is performed for construction improvement and pressure distribution region expansion so that the problems of the related art can be addressed. The pair of pressure plates are advantageous for compression and pullout destruction by forming a wider pressure distribution area with respect to the compressive force and the withdrawal force. The bolt connection is very simple, and thus work time and construction cost can be reduced. In addition, when a concrete charging pipe structure is made in a rectangular column form, bending strength and member compressive force increase, and thus resistance is enhanced with respect to bending deformation and compressive force when a longitudinal compressive force acts on the upper beam member and the lower beam member.;COPYRIGHT KIPO 2019