Decision making of retrofitting alternatives of Cikeusik Bridge pillars

Abstract

A structural deterioration of infrastructure system is inevitable. As the deterioration process affects the performance of the infrastructure system, structural assessment and strengthening technique are needed to resolve the issues. Cikeusik multispan steel bridge that was built in 1970's is part of Cikeusik Weir which connected with eight pillars of reinforced concrete. Assessment results which accomodate by conducting destructive, nondestructive test as well as structure modelling tools show that those pillars are in near severe condition. In order to restore the pillars performance, retrofitting are necessary to be implemented. However, selection of a structural retrofitting alternative is not an easy task. Steel jacketing, concrete jacketing and fiber reinforced polymer are among those available alternatives. Through semi quantitative method of decision making, the concrete jacketing is the most suitable alternative for strengthening the pillars.