A DESIGN AND CONSTRUCTION METHOD OF PRECAST PRESTRESSED CONCRETE SLABS FOR RATIONAL PLATE GIRDER BRIDGES

Abstract

Recently, rationalization has been required in construction of steel bridges in order to reduce construction cost and periods. Taking the trend into account, the rampway bridges on the Wangan Route at Osaka Nanko area have been constructed by Hanshin Expressway Public Corporation.
This paper reports a rational design, construction method of the rampway bridges, and the related experimental studies on the applicability of precast slabs with simplified joints and longitudinal prestressing by sequential jacking-up and down method, as well as the field loading test results on one of the completed bridges.