ABSTRACT

The eight-lane Central Road (Fig. 1) is in Jin-bin new area of Tianjin city, two ways traffic, and will pass under Jin-bin light rail bridge as a tunnel. In order to make the new constructed road has good performance, two piers (A339 and A340) of the light rail bridge need to be replaced, the light rail bridge can’t be strengthened and the train can’t be off-the-line.