WIDENING BRACKET STRUCTURE AND FLOOR SLAB WIDENING STRUCTURE

摘要

To enable widening of an existing bridge without adding main girders and bridge piers.SOLUTION: A widening bracket structure comprises: an existing steel bracket 12 attached to an existing steel main girder 102 so that an existing cantilever floor slab 110, which is provided to extend outward in a bridge width direction from the existing steel main girder 102 of an existing bridge 100, can be supported from below; and a new widening steel bracket 14 having a connection member 16 for supporting the existing steel bracket 12 from below, and a widening bracket member 18 connected to the connection member 16 and extending outward in the bridge width direction from the existing steel bracket 12. The connection member 16 of the new widening steel bracket 14 is attached to the existing steel main girder 102 and the existing steel bracket 12 of the existing bridge 100.SELECTED DRAWING: Figure 2