The structural characteristics of cable-stayed and suspended combination footway bridge (Nagisa-bridge) and development to the long span bridge

Abstract

Nagisa-Bridge that was completed in last year is PC Cable-stayed and steel suspended combination bridge (DISCHINGER type suspension bridge). Combination Bridge is excellent in wind resistance and improvement of severe deflection, because stay cable system raises vertical stiffness of the whole bridge. This paper clear that Combination Bridge improved vertical stiffness of suspension bridge drastically in the geographical features which cable stayed bridge part of side span was fixed like Nagisa-Bridge. And the result of the vibration examination of Nagisa-Bridge and the analysis corresponded well.