Cargando…

Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams

The bearing-shear connector (B-SC) is a newly developed connector that exhibits excellent shear behaviour and is easy to process. However, research on the application of B-SCs as substitutes for grouped studs in prefabricated steel–concrete composite beams is rare, and systematically studying their...

Descripción completa

Detalles Bibliográficos
Autores principales: Zheng, Zhichao, Zou, Yang, Chou, Yaling, Qin, Fengjiang, Chen, Fengmin, Di, Jin, Zhang, Zhigang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10342663/
https://www.ncbi.nlm.nih.gov/pubmed/37444929
http://dx.doi.org/10.3390/ma16134616
_version_ 1785072553137537024
author Zheng, Zhichao
Zou, Yang
Chou, Yaling
Qin, Fengjiang
Chen, Fengmin
Di, Jin
Zhang, Zhigang
author_facet Zheng, Zhichao
Zou, Yang
Chou, Yaling
Qin, Fengjiang
Chen, Fengmin
Di, Jin
Zhang, Zhigang
author_sort Zheng, Zhichao
collection PubMed
description The bearing-shear connector (B-SC) is a newly developed connector that exhibits excellent shear behaviour and is easy to process. However, research on the application of B-SCs as substitutes for grouped studs in prefabricated steel–concrete composite beams is rare, and systematically studying their shear behaviour is necessary. Thus, a refined numerical model was developed to study the shear behaviour of the B-SCs. The numerical model, validated by push-out tests, was conducted to analyse the stress of the B-SCs and concrete slab during loading and to explore the failure mechanism of B-SCs. Then, a parametric study was performed to identify the key factors influencing the shear behaviour of the B-SCs. The concrete strength, and the thickness and the tensile strength of the shear plate were found to significantly influence the shear behaviour of B-SCs. According to the experiments and numerical analysis, calculation formulae for the ultimate shear resistance and slip modulus were proposed.
format Online
Article
Text
id pubmed-10342663
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-103426632023-07-14 Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams Zheng, Zhichao Zou, Yang Chou, Yaling Qin, Fengjiang Chen, Fengmin Di, Jin Zhang, Zhigang Materials (Basel) Article The bearing-shear connector (B-SC) is a newly developed connector that exhibits excellent shear behaviour and is easy to process. However, research on the application of B-SCs as substitutes for grouped studs in prefabricated steel–concrete composite beams is rare, and systematically studying their shear behaviour is necessary. Thus, a refined numerical model was developed to study the shear behaviour of the B-SCs. The numerical model, validated by push-out tests, was conducted to analyse the stress of the B-SCs and concrete slab during loading and to explore the failure mechanism of B-SCs. Then, a parametric study was performed to identify the key factors influencing the shear behaviour of the B-SCs. The concrete strength, and the thickness and the tensile strength of the shear plate were found to significantly influence the shear behaviour of B-SCs. According to the experiments and numerical analysis, calculation formulae for the ultimate shear resistance and slip modulus were proposed. MDPI 2023-06-26 /pmc/articles/PMC10342663/ /pubmed/37444929 http://dx.doi.org/10.3390/ma16134616 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zheng, Zhichao
Zou, Yang
Chou, Yaling
Qin, Fengjiang
Chen, Fengmin
Di, Jin
Zhang, Zhigang
Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams
title Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams
title_full Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams
title_fullStr Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams
title_full_unstemmed Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams
title_short Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams
title_sort shear behaviour and calculation methods of bearing-shear connectors for prefabricated steel–concrete composite beams
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10342663/
https://www.ncbi.nlm.nih.gov/pubmed/37444929
http://dx.doi.org/10.3390/ma16134616
work_keys_str_mv AT zhengzhichao shearbehaviourandcalculationmethodsofbearingshearconnectorsforprefabricatedsteelconcretecompositebeams
AT zouyang shearbehaviourandcalculationmethodsofbearingshearconnectorsforprefabricatedsteelconcretecompositebeams
AT chouyaling shearbehaviourandcalculationmethodsofbearingshearconnectorsforprefabricatedsteelconcretecompositebeams
AT qinfengjiang shearbehaviourandcalculationmethodsofbearingshearconnectorsforprefabricatedsteelconcretecompositebeams
AT chenfengmin shearbehaviourandcalculationmethodsofbearingshearconnectorsforprefabricatedsteelconcretecompositebeams
AT dijin shearbehaviourandcalculationmethodsofbearingshearconnectorsforprefabricatedsteelconcretecompositebeams
AT zhangzhigang shearbehaviourandcalculationmethodsofbearingshearconnectorsforprefabricatedsteelconcretecompositebeams