村上 和也 (Kazuya MURAKAMI)
Since collapse of the truss bridge over Mississippi river in 2007, redundancy has become of importance as one of the performance of bridges. Although a lot of researches on redundancy has been conducted since then, redundancy evaluation based on nonlinear analysis and redundancy based design are still undeveloped. In this context, we propose a design of a typical steel truss bridge based on redundancy evaluated by nonlinear finite element analysis. As a result, redundancy of the proposed bridge can be improved without increase of steel weight.
Key Words : redundancy, steel truss bridge, nonlinear finite element analysis, design