Shear performance of high-strength friction-grip bolted shear connector in prefabricated steel–UHPC composite beams: Finite element modelling and parametric study
As a competitive alternative for accelerated bridge construction (ABC), prefabricated steel–ultra-high-performance concrete (UHPC) composite beams containing high-strength friction-grip bolt (HSFGB) shear connectors offer numerous advantages, including reduced on-site construction time and ease of r...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523000396 |
| _version_ | 1827920605190553600 |
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| author | Zhuangcheng Fang Lingkai Hu Haibo Jiang Shu Fang Guifeng Zhao Yuhong Ma |
| author_facet | Zhuangcheng Fang Lingkai Hu Haibo Jiang Shu Fang Guifeng Zhao Yuhong Ma |
| author_sort | Zhuangcheng Fang |
| collection | DOAJ |
| description | As a competitive alternative for accelerated bridge construction (ABC), prefabricated steel–ultra-high-performance concrete (UHPC) composite beams containing high-strength friction-grip bolt (HSFGB) shear connectors offer numerous advantages, including reduced on-site construction time and ease of replacing/removing deteriorated components. However, the failure mechanism of HSFGBs in UHPC remains unclear due to the lack of internal stress analysis, which hinders the design of these innovative composite beams. To clarify the shear performance of HSFGBs in prefabricated steel–UHPC composite beams, an effective finite element model (FEM) considering the non-linearities of materials and geometry was developed through ABAQUS. Based on the experimentally verified model, the internal stress transfer mechanisms of HSFGBs and the failure mechanism of precast UHPC were revealed. According to the extension parametric analysis results, a stronger HSFGB presented better shear performances in terms of ultimate shear strength, initial shear stiffness and slip capacity. Adopting oversized holes with appropriate bolt-to-hole clearance can improve the constructional efficiency without considerable strength and stiffness reduction. HSFGBs with low bolt pretension exhibited unfavorable initial shear stiffness, while smaller slip capacity in high bolt pretension conditions. A smaller ductility was observed as the steel beam tensile strength and slab concrete strength increased. Additionally, the ACI 318–19, Eurocode 3, and AASHTO LRFD specifications underestimated the shear strength of HSFGBs, whereas the Eurocode 4 presented acceptable predictions in determining the ultimate shear capacity of HSFGBs in prefabricated steel–UHPC composite beams. |
| first_indexed | 2024-03-13T04:13:02Z |
| format | Article |
| id | doaj.art-e5a30d9220294c9a9df1da0181532226 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:13:02Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-e5a30d9220294c9a9df1da01815322262023-06-21T06:53:32ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01860Shear performance of high-strength friction-grip bolted shear connector in prefabricated steel–UHPC composite beams: Finite element modelling and parametric studyZhuangcheng Fang0Lingkai Hu1Haibo Jiang2Shu Fang3Guifeng Zhao4Yuhong Ma5Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510006, China; Guangdong Key Laboratory of Earthquake Engineering & Applied Technique, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Guangzhou 510006, ChinaSchool of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaEarthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510006, China; Guangdong Key Laboratory of Earthquake Engineering & Applied Technique, Guangzhou 510006, China; Corresponding author at: Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510006, China.School of Civil Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Corresponding author.Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510006, China; Guangdong Key Laboratory of Earthquake Engineering & Applied Technique, Guangzhou 510006, ChinaAs a competitive alternative for accelerated bridge construction (ABC), prefabricated steel–ultra-high-performance concrete (UHPC) composite beams containing high-strength friction-grip bolt (HSFGB) shear connectors offer numerous advantages, including reduced on-site construction time and ease of replacing/removing deteriorated components. However, the failure mechanism of HSFGBs in UHPC remains unclear due to the lack of internal stress analysis, which hinders the design of these innovative composite beams. To clarify the shear performance of HSFGBs in prefabricated steel–UHPC composite beams, an effective finite element model (FEM) considering the non-linearities of materials and geometry was developed through ABAQUS. Based on the experimentally verified model, the internal stress transfer mechanisms of HSFGBs and the failure mechanism of precast UHPC were revealed. According to the extension parametric analysis results, a stronger HSFGB presented better shear performances in terms of ultimate shear strength, initial shear stiffness and slip capacity. Adopting oversized holes with appropriate bolt-to-hole clearance can improve the constructional efficiency without considerable strength and stiffness reduction. HSFGBs with low bolt pretension exhibited unfavorable initial shear stiffness, while smaller slip capacity in high bolt pretension conditions. A smaller ductility was observed as the steel beam tensile strength and slab concrete strength increased. Additionally, the ACI 318–19, Eurocode 3, and AASHTO LRFD specifications underestimated the shear strength of HSFGBs, whereas the Eurocode 4 presented acceptable predictions in determining the ultimate shear capacity of HSFGBs in prefabricated steel–UHPC composite beams.http://www.sciencedirect.com/science/article/pii/S2214509523000396High-strength friction-grip boltsPrefabricate steel–UHPC composite beamsPush-out testFinite element modellingParametric study |
| spellingShingle | Zhuangcheng Fang Lingkai Hu Haibo Jiang Shu Fang Guifeng Zhao Yuhong Ma Shear performance of high-strength friction-grip bolted shear connector in prefabricated steel–UHPC composite beams: Finite element modelling and parametric study Case Studies in Construction Materials High-strength friction-grip bolts Prefabricate steel–UHPC composite beams Push-out test Finite element modelling Parametric study |
| title | Shear performance of high-strength friction-grip bolted shear connector in prefabricated steel–UHPC composite beams: Finite element modelling and parametric study |
| title_full | Shear performance of high-strength friction-grip bolted shear connector in prefabricated steel–UHPC composite beams: Finite element modelling and parametric study |
| title_fullStr | Shear performance of high-strength friction-grip bolted shear connector in prefabricated steel–UHPC composite beams: Finite element modelling and parametric study |
| title_full_unstemmed | Shear performance of high-strength friction-grip bolted shear connector in prefabricated steel–UHPC composite beams: Finite element modelling and parametric study |
| title_short | Shear performance of high-strength friction-grip bolted shear connector in prefabricated steel–UHPC composite beams: Finite element modelling and parametric study |
| title_sort | shear performance of high strength friction grip bolted shear connector in prefabricated steel uhpc composite beams finite element modelling and parametric study |
| topic | High-strength friction-grip bolts Prefabricate steel–UHPC composite beams Push-out test Finite element modelling Parametric study |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523000396 |
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