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      Control Parametric Analysis on Improving Park Restoring Force Model and Damage Evaluation of High-Strength Structure

      , ,
      Advances in Materials Science and Engineering
      Hindawi Limited

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          Abstract

          In the dynamic time-history analysis of structural elastoplasticity, it is important to develop a universal mathematical model that can describe the force-displacement characteristics for restoring force. By defining three control parameters (stiffness degradation, slip closure γ , energy degradation β ), the Park restoring force mathematical model can simulate various components. In this study, the Park restoring force has been improved by adding two control parameters (energy-based strength degradation β e and ductility-based strength degradation β d ). Based on the testing data, the constitutive model is input and 55 numerical models are developed to analyze the effects of various parameters on structural behavior. Conclusion. (1) β has determinative effect on structural behavior; the effect of β e is basically consistent with that of β ; α has significant effect on shear forces and bending moments; γ has significant effect on displacements and accelerations; β d has significant effect on shearing forces, acceleration, and total energy consumptions. (2) Based on the classification of four types of damage level, the recommended values for α , γ , β , β e , and β d are presented. (3) Based on the testing data of high-strength columns, the recommended values for the five control parameters of the improved Park restoring force model are presented.

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          Mechanistic Seismic Damage Model for Reinforced Concrete

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            Damage‐Limiting Aseismic Design of Buildings

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              Hysteretic Models for Deteriorating Inelastic Structures

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                Author and article information

                Journal
                Advances in Materials Science and Engineering
                Advances in Materials Science and Engineering
                Hindawi Limited
                1687-8434
                1687-8442
                2016
                2016
                : 2016
                :
                : 1-10
                Article
                10.1155/2016/3696418
                cdee4b27-69d4-46cf-a8ed-3881368a25f0
                © 2016

                http://creativecommons.org/licenses/by/4.0/

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