In the beam which on back side under the column of the arcade material attaching structure null high level road and the like of foothold

摘要

PROBLEM TO BE SOLVED: To reduce noise and reflected noise by bolting an end part of a corrugated plate to a small beam through a side flush plate of a shape to close an opening of a ridge part. ;SOLUTION: A corrugated plate 3 as a footway is placed on an upper surface of an upper flange 20 of a small beam 2 suspended from a lower surface side of a girder such as an elevated road. End parts 30 of corrugated plates 3 adjacent to each other in the longitudinal direction of the side of the corrugation are arranged with a small interval therebetween, and the corrugated plates 3 are bolted to an intersection part with the small beam 2. The end parts 30 of the corrugated plates 3 are bolted to the small beam 2 through a side flush plate 1 of a shape to close an opening of a ridge part 32. The opening formed between the ridge part 32 to be erected from the upper flange 20 of the small beam 2 and the flange 20 is neatly closed by the side flush plate 1. Thus, a noise leak from an opening part when the corrugated plate as a footway is fitted to the upper flange of the small beam, can be prevented.;COPYRIGHT: (C)1999,JPO