BRIDGE DECK SLAB SUPPORT STRUCTURE AND REPLACEMENT METHOD OF DECK SLAB

摘要

PROBLEM TO BE SOLVED: To provide a bridge deck slab support structure and a replacement method of deck slab capable of carrying out a work to replace a reinforced concrete deck slab laid on a bridge with a steel deck slab in a short time.;SOLUTION: After attaching a deck slab support bracket 5 above a web 3b of a main girder 3, a concrete deck slab is removed excluding a part of an upper flange 3a as left part 4. A steel deck slab 2 which has a lateral rib 21, vertical rib 22 and a deck plate 20 is placed in the removed place on the deck slab support bracket 5 and joined with each other. Pavement construction is made on the upper face of the deck plate 20 to form a road surface 7.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT