Numerical Analysis of the Seismic Behavior of a Steel Beam-to-Concrete-Filled Steel Tubular Column Connection Using External Diaphragms

The seismic behavior of a novel steel beam-to-concrete-filled steel tubular column connection with external diaphragms was evaluated numerically by using a model based on the finite element method. The model was validated against experimental results performed in previous work, which revealed that t...

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Main Authors: Cristhian Ramírez Ortiz, Albio D. Gutierrez Amador, Jose L. Ramírez Duque
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/12/8/1217
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author Cristhian Ramírez Ortiz
Albio D. Gutierrez Amador
Jose L. Ramírez Duque
author_facet Cristhian Ramírez Ortiz
Albio D. Gutierrez Amador
Jose L. Ramírez Duque
author_sort Cristhian Ramírez Ortiz
collection DOAJ
description The seismic behavior of a novel steel beam-to-concrete-filled steel tubular column connection with external diaphragms was evaluated numerically by using a model based on the finite element method. The model was validated against experimental results performed in previous work, which revealed that this type of connection is suitable for use in special moment frame structures located in areas of high seismic threat. The comparison included the hysteresis curve, plasticization mechanism, and plastic hinge location. Then, the model was used to study the behavior of the connection for a monotonic test. It was observed that the monotonic test can be used for the qualification of the connection, avoiding the excessive time required for the solution of the cyclic load test. In addition, two stages of simplifications were conducted in the model, showing satisfactory results and significant reductions in computational time. For the first stage, the lateral support beam was removed and replaced by a connection with an infinite lateral rigidity. Second, beam-type elements were implemented in the remote areas of the plastic hinge location. Finally, the simplified model was used in a parametric study that examined the behavior of the connection under four different European type I profiles. It was observed that all the profiles meet the requirements for seismic performance.
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spelling doaj.art-d6116aa0d24e492daf7748bb4ceb6f852023-12-03T13:24:06ZengMDPI AGBuildings2075-53092022-08-01128121710.3390/buildings12081217Numerical Analysis of the Seismic Behavior of a Steel Beam-to-Concrete-Filled Steel Tubular Column Connection Using External DiaphragmsCristhian Ramírez Ortiz0Albio D. Gutierrez Amador1Jose L. Ramírez Duque2School of Civil Engineering and Geomatics Engineering, Universidad del Valle, Cali 760034, ColombiaResearch Group in Fatigue and Surfaces, School of Mechanical Engineering, Universidad del Valle, Cali 760034, ColombiaCivil and Industrial Engineering Department, Pontificia Universidad Javeriana Cali, Cali 760031, ColombiaThe seismic behavior of a novel steel beam-to-concrete-filled steel tubular column connection with external diaphragms was evaluated numerically by using a model based on the finite element method. The model was validated against experimental results performed in previous work, which revealed that this type of connection is suitable for use in special moment frame structures located in areas of high seismic threat. The comparison included the hysteresis curve, plasticization mechanism, and plastic hinge location. Then, the model was used to study the behavior of the connection for a monotonic test. It was observed that the monotonic test can be used for the qualification of the connection, avoiding the excessive time required for the solution of the cyclic load test. In addition, two stages of simplifications were conducted in the model, showing satisfactory results and significant reductions in computational time. For the first stage, the lateral support beam was removed and replaced by a connection with an infinite lateral rigidity. Second, beam-type elements were implemented in the remote areas of the plastic hinge location. Finally, the simplified model was used in a parametric study that examined the behavior of the connection under four different European type I profiles. It was observed that all the profiles meet the requirements for seismic performance.https://www.mdpi.com/2075-5309/12/8/1217beam-to-column connectionscomposite structurescyclic loadingplastic hingespecial moment framesnumerical models
spellingShingle Cristhian Ramírez Ortiz
Albio D. Gutierrez Amador
Jose L. Ramírez Duque
Numerical Analysis of the Seismic Behavior of a Steel Beam-to-Concrete-Filled Steel Tubular Column Connection Using External Diaphragms
Buildings
beam-to-column connections
composite structures
cyclic loading
plastic hinge
special moment frames
numerical models
title Numerical Analysis of the Seismic Behavior of a Steel Beam-to-Concrete-Filled Steel Tubular Column Connection Using External Diaphragms
title_full Numerical Analysis of the Seismic Behavior of a Steel Beam-to-Concrete-Filled Steel Tubular Column Connection Using External Diaphragms
title_fullStr Numerical Analysis of the Seismic Behavior of a Steel Beam-to-Concrete-Filled Steel Tubular Column Connection Using External Diaphragms
title_full_unstemmed Numerical Analysis of the Seismic Behavior of a Steel Beam-to-Concrete-Filled Steel Tubular Column Connection Using External Diaphragms
title_short Numerical Analysis of the Seismic Behavior of a Steel Beam-to-Concrete-Filled Steel Tubular Column Connection Using External Diaphragms
title_sort numerical analysis of the seismic behavior of a steel beam to concrete filled steel tubular column connection using external diaphragms
topic beam-to-column connections
composite structures
cyclic loading
plastic hinge
special moment frames
numerical models
url https://www.mdpi.com/2075-5309/12/8/1217
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