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The use of Stick-IT model for the prediction of direct economic losses

机译：使用棒材模型来预测直接经济损失

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The Stick-IT model (Stick for Infilled frames Typologies), that is a MDOF system consisting of a series of lumped masses connected by nonlinear shear link elements, was introduced to predict the response, in terms of interstory drift ratio (IDR) and peak floor acceleration (PFA), for infilled RC building typologies. Stick model parameters can be defined starting from low level building geometrical features, easily retrievable at the large scale, such as in plan dimensions, number of stories or the percentage of infills openings and considering the infills consistency. This paper investigates the applicability of Stick-IT to predict the performance and direct economic losses for existing RC infilled frame type buildings. In the framework of a performance-based assessment, the comparison of seismic-loss outcomes provided by using either a detailed finite element model (FEM) (L1) or simplified Stick-IT structural models (L2) are illustrated and discussed. The potential of Stick-IT model is investigated referring to a real building damaged and repaired after the 2009 L'Aquila earthquake and adopting as earthquake input records registered in the proximity of the building. Story-level building damage simulated by L1 and L2 models is compared to real damage, showing satisfactory prediction. The comparison of the real repair costs with those evaluated using L1 and L2 models provides encouraging validation. The application suggests that simplified models such as Stick-IT, despite the low level of information required for its application, can be usefully applied to perform damage and loss scenarios at the large scale. Matlab code to generate the Stick-IT, as well as the example code for the present study, are openly shared through the repository .
机译：粘贴IT模型（粘贴为infized框架类型），即由由非线性剪切连杆元件连接的一系列集总质量组成的MDOF系统，以预测响应，就壁垒漂移比（IDR）和峰值而言地板加速度（PFA），in Infiled RC建筑类型。棒模型参数可以从低级建筑几何特征开始定义，可以轻松地以大规模可检索，例如计划尺寸，故事数量或填充开口的百分比，并考虑填充物的一致性。本文调查了坚持的适用性预测现有RC Infilled框架类型建筑物的性能和直接经济损失。在基于性能的评估的框架中，通过使用详细的有限元模型（FEM）（L1）或简化的粘附 - IT结构模型（L2）提供了通过使用详细的有限元模型（USP）或简化的粘附件（L2）来比较。在2009年L'Aquila地震和建筑物附近登记的地震投入记录，调查了粘附IT模型的潜在建筑物的潜力。通过L1和L2模型模拟的故事水平建筑损坏与真正的损坏，显示出令人满意的预测。使用L1和L2型号评估的实际修复成本的比较提供了令人鼓舞的验证。该应用程序表明，尽管其应用所需的信息级别低，但粘贴等简化模型可以有效地应用于在大规模中执行损坏和丢失方案。 MATLAB代码生成棒材，以及本研究的示例代码，通过存储库公开共享。

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