Mitsubishi Heavy Industries Technical Review
    Vol. 52 No. 1 (2015)   New Products & Technologies
    Technical Papers

    Development of Rational Design Technique for Frame Steel Structure Combining Seismic Resistance and Economic Performance

    MOTOKI KATO
    KUNIHIRO MORISHITA
    MASAKI SHIMONO
    YASUHARU CHUMAN
    TAKASHI OKAFUJI
    TOSHIAKI MONAKA

    Anti-seismic designs have been applied to plant support steel frames for years. Today, a rational structure that further improves seismic resistance and ensures economic performance is required in response to an increase of seismic load on the assumption of predicted future massive earthquakes. For satisfying this requirement, a steel frame design method that combines a steel frame weight minimizing method, which enables economic design through simultaneous minimization of multiple steel frame materials, and a seismic response control design technology that improves seismic resistance has been established. Its application in the design of real structures has been promoted. This paper gives an overview of this design technology and presents design examples to which this design technology is applied.