This study is a part of research to introduce load and resistance factor design (LRFD) method to the Japanese Specification for Highway bridges, which is currently based on allowable stress design method. This paper describes outline of design procedures/provisions of steel highway bridges based on the AASHTO LRFD Bridge Design Specifications. And it also discusses the comparison of the design of simply supported plate girders between U.S. and Japan focusing on design live load/dead load.
