Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-Friction

This paper proposes a new type of steel slip-friction column base connections with arc end-plates. Two arc end-plates of the steel column base, which can slide between each other to some extent, were set at the position where the column base is subject to plastic deformation. Thus, the sliding-frict...

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Main Authors: Chengyu Li, Cong Luo, Aizhu Zhu
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/12/11/2012
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author Chengyu Li
Cong Luo
Aizhu Zhu
author_facet Chengyu Li
Cong Luo
Aizhu Zhu
author_sort Chengyu Li
collection DOAJ
description This paper proposes a new type of steel slip-friction column base connections with arc end-plates. Two arc end-plates of the steel column base, which can slide between each other to some extent, were set at the position where the column base is subject to plastic deformation. Thus, the sliding-friction energy dissipation between the arc end-plates can effectively minimize or eliminate the energy dissipation of the traditional column base connections. Cyclic loading tests were conducted to study the hysteretic performance and energy consumption performance of the proposed connections. Considerations have been given to different axial compression ratios, Belleville springs (Bes), brass plates, and horizontal loading protocols. The test results show no obvious deformation or damage during the radial cyclic loading test. The curve shape of the test measurement approximates a parallelogram, showing good force performance. The proposed connections with the increasing axial compression force can increase the energy dissipation ability and load-carrying capacity. Therefore, the proposed connection has perfect seismic behavior.
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spelling doaj.art-b7f2bbe543c047a38216a59b14b089942023-11-24T07:51:20ZengMDPI AGBuildings2075-53092022-11-011211201210.3390/buildings12112012Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-FrictionChengyu Li0Cong Luo1Aizhu Zhu2School of Urban Construction, Wuhan University of Science and Technology, No.947 Qingshan Heping Road, Wuhan 430081, ChinaSchool of Urban Construction, Wuhan University of Science and Technology, No.947 Qingshan Heping Road, Wuhan 430081, ChinaSchool of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, No.1037 Luoyu Road, Wuhan 430074, ChinaThis paper proposes a new type of steel slip-friction column base connections with arc end-plates. Two arc end-plates of the steel column base, which can slide between each other to some extent, were set at the position where the column base is subject to plastic deformation. Thus, the sliding-friction energy dissipation between the arc end-plates can effectively minimize or eliminate the energy dissipation of the traditional column base connections. Cyclic loading tests were conducted to study the hysteretic performance and energy consumption performance of the proposed connections. Considerations have been given to different axial compression ratios, Belleville springs (Bes), brass plates, and horizontal loading protocols. The test results show no obvious deformation or damage during the radial cyclic loading test. The curve shape of the test measurement approximates a parallelogram, showing good force performance. The proposed connections with the increasing axial compression force can increase the energy dissipation ability and load-carrying capacity. Therefore, the proposed connection has perfect seismic behavior.https://www.mdpi.com/2075-5309/12/11/2012column base connectionslip-friction connectionhysteresis behaviorfriction energy dissipation
spellingShingle Chengyu Li
Cong Luo
Aizhu Zhu
Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-Friction
Buildings
column base connection
slip-friction connection
hysteresis behavior
friction energy dissipation
title Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-Friction
title_full Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-Friction
title_fullStr Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-Friction
title_full_unstemmed Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-Friction
title_short Experimental Study on Seismic Behavior of Steel Column Base Connections with Arc End-Plates Slip-Friction
title_sort experimental study on seismic behavior of steel column base connections with arc end plates slip friction
topic column base connection
slip-friction connection
hysteresis behavior
friction energy dissipation
url https://www.mdpi.com/2075-5309/12/11/2012
work_keys_str_mv AT chengyuli experimentalstudyonseismicbehaviorofsteelcolumnbaseconnectionswitharcendplatesslipfriction
AT congluo experimentalstudyonseismicbehaviorofsteelcolumnbaseconnectionswitharcendplatesslipfriction
AT aizhuzhu experimentalstudyonseismicbehaviorofsteelcolumnbaseconnectionswitharcendplatesslipfriction