THE HISTORICAL TRANSITION OF STANDARD PLANS FOR ROADWAY BRIDGES AS DESIGN MANAGEMENT SYSTEM

-A case study on concrete T-beam Bridges-

Abstract

The design method of performance-based design is going to be introduced to the Japanese bridge design. Therefore, it's worth to reevaluate the use of standard plans, which was one of the conventional design methods based on specification-based regulation. This paper deals with the history of standard plans for roadway bridges focused on concrete T-beam Bridges. We aim to clarify the outline of the historical transitions, purposes and actual uses for summarizing historical perspective of them. The results show the discrepancy between intended purposes and actual uses after 1970's. At the end of this paper, the result of this historical review implies what the future bridge design method should be.