Installation structure of protective fence for bridge, installation method of protective fence for bridge

摘要

PROBLEM TO BE SOLVED: To provide an installation structure of a bridge guard fence that ensures sufficient strength even when a ground cover is narrow.SOLUTION: An installation structure for a bridge guard fence includes: a plurality of anchor bolts B1 fitted on a top surface of a ground cover W of a road bridge and arranged to form two or more rows in a direction of extension of the ground cover W; a base member 3 fixed to project outward in a bridge width direction from the ground cover W; a support post 1 fixed on the base member 3; and a beam fitted on the support post 1. The base member 3 includes a plurality of anchor bolt fitting holes 311 through which each of the plurality of anchor bolts B1 penetrates. An interval between the plurality of anchor bolt fitting holes 311 arranged in the direction of extension of the ground cover W is of a ratio between 0.5 and 3.0 with respect to an embedded depth of the plurality of anchor bolts B1 into the ground cover W.SELECTED DRAWING: Figure 1