Experimental Study and Numerical Simulation for the Seismic Performance of an Innovative Connection between a Flat CFST Column and an H Beam

A concrete-filled steel tube (CFST) column permits convenient and fast construction, and its use for high-rise buildings is increasing. Meanwhile, the CFST structure has great potential for use in residence buildings, owing to its smooth evaluation. A connection for a flat CFST column has also attra...

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Main Authors: En-Feng Deng, Yu-Han Wang, Zhe Liu, Yong-Ji Song, Zhen Wang, Dian-Bin Cao
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/12/6/735
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author En-Feng Deng
Yu-Han Wang
Zhe Liu
Yong-Ji Song
Zhen Wang
Dian-Bin Cao
author_facet En-Feng Deng
Yu-Han Wang
Zhe Liu
Yong-Ji Song
Zhen Wang
Dian-Bin Cao
author_sort En-Feng Deng
collection DOAJ
description A concrete-filled steel tube (CFST) column permits convenient and fast construction, and its use for high-rise buildings is increasing. Meanwhile, the CFST structure has great potential for use in residence buildings, owing to its smooth evaluation. A connection for a flat CFST column has also attracted increasing attention from scholars. An innovative connection between a flat CFST column and an H beam was proposed and cyclically tested in this paper. The flat CFST column, with a width that is equal to the thickness of the partition wall, was adopted to avoid the protrusion of the column into the corner of the room. The configuration of the innovative connection was introduced, and three full-scale specimens, considering different relative positions of the beam and column, were tested under cyclic load to failure. The seismic performance, including the failure mode, ductility, etc., were revealed and evaluated. It was indicated that the plastic hinge of the connection was prominently removed outward, due to the reinforced short beam and the interior-diaphragm, verifying the reliability of the innovative connection. Furthermore, an elaborated finite element model was developed, and the results of the finite element simulation were compared with the experimental simulations. This comparison confirmed the reasonability of the developed finite element model.
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spelling doaj.art-b8245d8be08d4cf8b0998e666be101a02023-11-23T15:52:26ZengMDPI AGBuildings2075-53092022-05-0112673510.3390/buildings12060735Experimental Study and Numerical Simulation for the Seismic Performance of an Innovative Connection between a Flat CFST Column and an H BeamEn-Feng Deng0Yu-Han Wang1Zhe Liu2Yong-Ji Song3Zhen Wang4Dian-Bin Cao5School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Civil Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Civil Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Civil Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Civil Engineering, Shandong Jianzhu University, Jinan 250101, ChinaJinan Rail Transit Group Co., Ltd., Jinan 250101, ChinaA concrete-filled steel tube (CFST) column permits convenient and fast construction, and its use for high-rise buildings is increasing. Meanwhile, the CFST structure has great potential for use in residence buildings, owing to its smooth evaluation. A connection for a flat CFST column has also attracted increasing attention from scholars. An innovative connection between a flat CFST column and an H beam was proposed and cyclically tested in this paper. The flat CFST column, with a width that is equal to the thickness of the partition wall, was adopted to avoid the protrusion of the column into the corner of the room. The configuration of the innovative connection was introduced, and three full-scale specimens, considering different relative positions of the beam and column, were tested under cyclic load to failure. The seismic performance, including the failure mode, ductility, etc., were revealed and evaluated. It was indicated that the plastic hinge of the connection was prominently removed outward, due to the reinforced short beam and the interior-diaphragm, verifying the reliability of the innovative connection. Furthermore, an elaborated finite element model was developed, and the results of the finite element simulation were compared with the experimental simulations. This comparison confirmed the reasonability of the developed finite element model.https://www.mdpi.com/2075-5309/12/6/735flat concrete-filled steel tube (CFST)innovative connectioncyclic loadingfinite element modellingseismic performance
spellingShingle En-Feng Deng
Yu-Han Wang
Zhe Liu
Yong-Ji Song
Zhen Wang
Dian-Bin Cao
Experimental Study and Numerical Simulation for the Seismic Performance of an Innovative Connection between a Flat CFST Column and an H Beam
Buildings
flat concrete-filled steel tube (CFST)
innovative connection
cyclic loading
finite element modelling
seismic performance
title Experimental Study and Numerical Simulation for the Seismic Performance of an Innovative Connection between a Flat CFST Column and an H Beam
title_full Experimental Study and Numerical Simulation for the Seismic Performance of an Innovative Connection between a Flat CFST Column and an H Beam
title_fullStr Experimental Study and Numerical Simulation for the Seismic Performance of an Innovative Connection between a Flat CFST Column and an H Beam
title_full_unstemmed Experimental Study and Numerical Simulation for the Seismic Performance of an Innovative Connection between a Flat CFST Column and an H Beam
title_short Experimental Study and Numerical Simulation for the Seismic Performance of an Innovative Connection between a Flat CFST Column and an H Beam
title_sort experimental study and numerical simulation for the seismic performance of an innovative connection between a flat cfst column and an h beam
topic flat concrete-filled steel tube (CFST)
innovative connection
cyclic loading
finite element modelling
seismic performance
url https://www.mdpi.com/2075-5309/12/6/735
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