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A novel structural resilience index: Definition and applications to frame structures

机译：一种新颖的结构性弹性指数：框架结构的定义和应用

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摘要

Resilience is the ability to undergo disruptive events without suffering complete failure and minimizing undesirable consequences thereof. Many attempts have been done in the recent literature in order to define quantitatively synthetic resilience measures of mechanical structures. They have been conceived as to be useful in comparing and classifying the resilience of different structures. In this paper we propose a novel rational and deterministic structural resilience index, based on a worst-case disruptive event, and making use of a minimalistic kinematics-based mechanical description. Particular emphasis is given to the computation of such a new structural resilience index for a generic frame structure, it being possible without the use of automated algorithms and an analytic expression of it has been achieved in terms of the numbers of ports (modules) and floors. First of all, keeping fixed the number of modules, the resilience index decreases as the number of floors increases. Secondly, keeping fixed the number of floors, the resilience index increases as the number modules increases. Finally, we notice that the case with infinite floors has a lower resilience index with respect to case of infinite modules, which is, as expectable, more resilient. (C) 2019 Elsevier Ltd. All rights reserved.
机译：弹性是能够在不遭受完全失败的情况下进行破坏性事件，并尽量减少其不良后果。在最近的文献中已经完成了许多尝试，以便定义机械结构的定量合成弹性测量。他们被认为是有用的，以比较和分类不同结构的弹性。在本文中，我们提出了一种基于最坏情况的破坏性事件的新颖和确定性结构性弹性指数，并利用基于基于运动的基于运动学的机械描述。特别强调计算这种新的结构弹性指数的通用帧结构的新结构弹性指数，在不使用自动化算法的情况下，在端口（模块）和地板的数量方面已经实现了它的分析表达。首先，保持固定的模块数量，随着地层数量的增加，弹性指数降低。其次，保持固定地板的数量，随着数字模块的增加，弹性指数增加。最后，我们注意到具有无限楼层的情况，对于无限模块的情况，具有较低的弹性指数，这是预期的，更具弹性。 （c）2019年elestvier有限公司保留所有权利。

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