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An empirical transcendental hysteresis model for structural systems with pinching and degradation

机译：挤压和降解结构系统的经验超越滞后模型

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摘要

The authors present a novel transcendental hysteresis model based on the piecewise definition of arctangent functions. The definition of the shape parameters of the arctangent functions originates from the features of the experimental hysteresis curves directly. In the first step, the authors present this model's application to the experimental cyclic response of cross-laminated timber (CLT), light-timber frame (LTF) shear walls, and a steel angle bracket. Then, the response of a plywood-coupled laminated-veneer lumber (LVL) shear wall is used for validation purposes. The paper introduces the arctangent-based model, labeled Atan model, by illustrating some possible shortcomings of hysteresis models with pinching. The paper concludes with a simple demonstration of these issues in the case of a Bouc-Wen class hysteresis model, the extended energy-dependent generalized Bouc-Wen (eegbw) model. The numerical instabilities of the eegbw model are used to endorse the advantages of the proposed formulation in modeling complex structural arrangements, like wood joints and structural systems. The proposed model originates from the analysis of the experimental response of wood joints. However, it can be of more general application, and the particular reference to wood joints does not preclude other application fields.
机译：作者提出了一种基于角抗函数的分段定义的新型超越滞后模型。异常功能的形状参数的定义直接源自实验滞后曲线的特征。在第一步中，作者将该模型应用于交叉层叠木材（CLT），光木框架（LTF）剪切壁和钢角支架的实验循环响应。然后，胶合板耦合层压胶合木材（LVL）剪切壁的响应用于验证目的。本文介绍了基于宫殿的模型，标记为atan模型，通过说明通过夹持的滞后模型的一些可能的缺点。本文在BOUC-WEN类滞后模型的情况下，延伸能量依赖性沟渠（EEGBW）模型简单地展示了这些问题的简单演示。 EEGBW模型的数值不太稳定性用于通过建模复杂结构布置，如木接缝和结构系统，以支持提出的配方的优点。该拟议模型源自分析木材关节的实验响应。但是，它可以具有更通用的应用，并且对木头关节的特定引用并不排除其他应用领域。

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