Search results for " Plastic hinge"

showing 2 items of 2 documents

The multiple slope discontinuity beam element for nonlinear analysis of RC framed structures

2018

The seismic nonlinear response of reinforced concrete structures permits to identify critical zones of an existing structure and to better plan its rehabilitation process. It is obtained by performing finite element analysis using numerical models classifiable into two categories: lumped plasticity models and distributed plasticity models. The present work is devoted to the implementation, in a finite element environment, of an elastoplastic Euler–Bernoulli beam element showing possible slope discontinuities at any position along the beam span, in the framework of a modified lumped plasticity. The differential equation of an Euler–Bernoulli beam element under static loads in presence of mul…

PhysicsDiscretizationDifferential equationMechanical EngineeringMathematical analysisSlope discontinuity Nonlinear pushover analysis Lumped plasticity Plastic hinge020101 civil engineering02 engineering and technologyPlasticityClassification of discontinuitiesCondensed Matter PhysicsFinite element method0201 civil engineeringNonlinear systemSettore ICAR/09 - Tecnica Delle Costruzioni020303 mechanical engineering & transports0203 mechanical engineeringMechanics of MaterialsBending momentSettore ICAR/08 - Scienza Delle CostruzioniStiffness matrix
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Limited Resistance Rigid Perfectly Plastic Hinges for Steel Frames

2017

The paper concerns the proposal of a new special device for steel frames that can be utilized as external constraint as well as internal one connecting the structure beam elements. The device is designed as a rigid perfectly plastic hinge characterized by suitably chosen stiffness and resistance. Its constituting material is steel. The elastic stiffness and the limit resistance, treated as independent of each other, are fixed with the aim of satisfying special features required to the structure. The proposed device is thought as a sandwich section with wing thickness appropriately variable. Its dimensions are designed so that it can exhibit the fixed independent stiffness and limit resistan…

Structural Devices Rigid Plastic Hinges Steel Structures Elastic Properties Limit ResistanceMaterials scienceResistance (ecology)business.industryComputational MechanicsHinge020101 civil engineering02 engineering and technologyBuilding and ConstructionStructural engineering0201 civil engineering020303 mechanical engineering & transports0203 mechanical engineeringMechanics of MaterialsArchitectureSettore ICAR/08 - Scienza Delle CostruzioniSafety Risk Reliability and QualitybusinessCivil and Structural EngineeringInternational Review of Civil Engineering (IRECE)
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