Abstract

This report proposes a practical minimum weight design method controlled by the structural performance ( the maximum story displacement and the member safety ratio for allowable stress in elastic design)' which the structural engineer specified, for elastic steel frame. This method is based on Nakamura-Kosaka's strain controlling theory and uses neural network. This method will be effective tool for structural engineer in structural planning stage, because this method can grasp on the structural cost and performance easily. This report shows that neural network is an effective tool for the inverse design problem which is difficult to expand theoretically, using the examples.

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