Analytical study on validity of seismic retrofitting method by filling hollow steel members with concrete in deck type arch bridge

Abstract

Steel column members with Embedded Plastic Segment (EPS) has been developed and proposed as a new seismic retrofitting technique for existing steel bridge piers to enhance the ductility with less increment in the ultimate strength of the column members. In this paper, an application of the EPS method together with the ordinary concrete-filled method to an existing deck type arch bridge is investigate through static and dynamic analysis of the arch bridge. It is concluded from this analytical investigation that the validity of the application of the seismic retrofitting method using BPS method together with the ordinary concrete-filled method into the side ones of the deck supporting ridge framed column members and arch ribs of the deck type arch bride can be recognized.