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

研究了铝合金双层屋面网壳结构的高宽比对其动力屈曲性能的影响。在前文中，我们已经提出了预测腹板构件逐步屈曲引起的倒塌加速度的计算方法。计算结果与弹塑性动力屈曲分析结果吻合较好。本文采用杆件屈曲滞后曲线模型的桁架单元，对不同高宽比的板结构进行了弹塑性动力屈曲分析。采用单自由度弹性振动模型预测结构的倒塌加速度。结果表明，本文提出的方法具有较高的准确性和适用性，验证了该方法的有效性。

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.