Two girder railway bridge using preflex steel girder

摘要

The present invention is to minimize vibration and deflection to choose one type of synthesis combines the rigidity of the concrete and steel bridges due relates to a second mold with the pre- school rail flex steel girder which can minimize damage to the bridge , the characteristic configuration of pier 11 is formed so as to have a lower concrete predetermined thickness and width to be placed in the upper surface 13 and , are located on both sides of the lower concrete 13 in the longitudinal direction so as to maintain the rigidity of the lower end of the bridge and Preflex steel girders embedded in the inside 12 of the lower concrete 13 , the flex -free steel girder ( 12) is the lower concrete hayeoseo 13 included in the package roadbed 14 on the upper surface between .