Response Prediction of Ultimate State and Collapse Acceleration of Double Layer Latticed Wall Structures Using Earthquake Response Spectrum

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The purpose of this study is to investigate the effect of the aspect ratio of aluminum alloy double layer latticed wall and roof plate structures on the dynamic buckling behavior. In our previous paper, the calculation method of predicting the collapse acceleration induced by the progressive web member buckling has been proposed. And the calculation results of the proposed method have shown a good agreement with the results of the elasto-plastic dynamic buckling analysis.In this study, the elasto-plastic dynamic buckling analyses of the plate structures with the various aspect ratios are carried out using truss elements with the member buckling hysteresis curve model. And an one-degree freedom elastic vibration model is used for predicting the collapse acceleration. As a result, it is seen that the accuracy and adoptability of the proposed method are discussed and the validity is shown in this study.