| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bridge installation construction method and a bridge installation jig in which an installation time of a girder is shortened.SOLUTION: A bridge installation construction method is characterized by: performing temporary reception of making an existing girder 12 support an installation girder 11 through a setting beam 21 attached to a longitudinal end; mounting a pair of setting beams 21A and 21B at predetermined intervals in the width direction at a longitudinal end in the installation girder 11; mounting a beam induction guide 22 of a substantially trapezoid or substantially triangle having the width of a base part using the interval of the pair of setting beams in the longitudinal end, and having oblique sides 221b at both right and left sides of the base part 221a, in the existing girder 12; and performing positioning in the state where one of the pair of setting beams 21A and 21B slides at the oblique side 221b of the beam induction guide 22 when lowering the installation girder 11, and the pair of setting beams 21A and 21B sandwich the base part 221a of the beam induction guide 22 in the temporary reception state.</p> |
