ASEISMIC STRUCTURE OF GIRDER INSTALLATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an aseismic structure of a girder installation device capable of improving earthquake resistance with respect to oscillation in a longitudinal direction (a bridge axial direction).;SOLUTION: With respect to a suspension girder 7 and a supporting member 31, an aseismic connection member 40 is extended at least in a longitudinal direction D1 with one edge thereof connected to the supporting member 31 and the other edge thereof detachably connected to the suspension girder 7. When the supporting member 31 is immobile with respect to the suspension girder 7, the supporting member 31 is connected to the suspension girder 7 through the aseismic connection member 40 with the other edge thereof connected to the suspension girder 7. Also, because the aseismic connection member 40 is extended at least in the longitudinal direction D1, the same can sufficiently resist oscillation in the longitudinal direction D1. Thus, earthquake resistance in the longitudinal direction D1 can be improved.;COPYRIGHT: (C)2014,JPO&INPIT