Ultimate shear resistance of ultra-high performance fiber reinforced concrete-normal strength concrete beam

He, Jian; Liu, Chao

doi:10.1016/j.engstruct.2019.109825

Cited by 22 publications

(12 citation statements)

References 15 publications

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“…In this paper, the failure from concrete crushing at the node-to-strut interface of node N c is assessed since it is the most frequent failure mode observed for elements with good NSC-UHPC interface and with good UHPC placement (Ji and Liu, 2020;Noshiravani and Brühwiler, 2013;Pharand and Charron, 2022a;Sine et al, 2022;Yin et al, 2017).…”

Section: Structural Hardening Resistance Model For V Rshmentioning

confidence: 99%

“…Specimens from this experimental campaign stand out from others by two factors: these specimens contain stirrups and were tested at the lowest span to equivalent depth ratio (a/d eq ) varying from 2.23 to 2.98 (Table 1). The number of specimens within the five experimental campaigns with a diagonal shear crack Unspecified in references (Yin et al, 2017;Ji and Liu, 2020).…”

Section: Structural Hardening Resistance V Rshmentioning

confidence: 99%

“…Through this concept, many experimental campaigns were realized to study the bending behaviour of hybrid NSC-UHPC elements (Habel, 2004; Makita, 2014; Oesterlee, 2010; Wuest, 2007; Al-Osta et al, 2017; Denarié et al, 2003; Lachance et al, 2016; Noshiravani and Brühwiler, 2013; Paschalis et al, 2018; Prem and Murthy, 2016; Safdar et al, 2016; Zingaila et al, 2017; Pharand, 2022; Yin et al, 2017). However, only a few (Pharand and Charron, 2022a; Sine et al, 2022; Noshiravani and Brühwiler, 2013; Ji and Liu, 2020; Yin et al, 2017) specifically studied the shear behaviour of hybrid NSC-UHPC elements.…”

Section: Introductionmentioning

confidence: 99%

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Shear resistance and structural hardening resistance models for hybrid NSC-UHPC elements

Pharand

Charron

2023

Advances in Structural Engineering

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Ultra-high performance concrete (UHPC) is being increasingly used as a thin overlay for deficient normal strength concrete (NSC) structural elements. Compared to reinforced NSC elements, hybrid NSC-UHPC elements have two stages' structural behaviour under high shear load before failure: monolithic action followed by a composite mechanical action. The composite mechanical action gives to hybrid elements a structural hardening capability after the occurrence of a diagonal shear crack and is not yet considered by most design standards. Two analytical models for hybrid elements under shear load are thus proposed to predict the shear resistance V R of the monolithic action and to predict the structural hardening resistance V Rsh of the composite mechanical action. The shear resistance model integrates the UHPC contribution in the estimation of the tensile strain at mid-height cross-section according to the general method of the Canadian code. The structural hardening behaviour is reproduced with a strut-and-tie system with plastic hinges, where the failure is controlled by the crushing of a concrete strut. Predictions of the proposed models are in very good agreement with 31 hybrid elements experimental results retrieved from the literature.

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Section: Structural Hardening Resistance Model For V Rshmentioning

confidence: 99%

Section: Structural Hardening Resistance V Rshmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shear resistance and structural hardening resistance models for hybrid NSC-UHPC elements

Pharand

Charron

2023

Advances in Structural Engineering

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“…At high shear stress, the rigid bond of the layers may become partially rigid, and therefore slab layers slip relatively to each other [ 4 , 24 ], this occurrence is shown in Figure 2 . Such type of failure mode is described in studies by H. Ji and C. Liu, 2020 [ 25 ], K.M.A. Hossain et al, 2020 [ 26 ] and G. Marčiukaitis et al, 2007 [ 27 ].…”

Section: Introductionmentioning

confidence: 97%

Deflection Analysis of Layered Slabs with Plastic Inserts

et al. 2021

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The article deals with experimental and numerical research of the layered reinforced concrete slab with plastic inserts. The investigated layered reinforced concrete slab is made of prefabricated and monolithic reinforced concrete layers. Voids were formed in the plate with spherical plastic inserts. With reference to the built-up bars theory, the paper proposes an analytical method for calculating the deflection of the layered reinforced concrete structures in non-linear stage, when bond between layers is partially rigid. The article also focuses on the numerical simulation of the layered slab, compares the estimated theoretical values of deflection with the experimental values and assesses the shear stiffness of the bond of prefabricated and monolithic concrete layers for calculating the deflection of the reinforced concrete slab. Paper presents the parametric analysis of deflection dependence on shear stiffness and the width of the contact zone of the layers. It was established that proposed analytical method and numerical analysis properly characterise the behaviour of the slab. Calculation results were close to experimental data. Moreover, it was determined that performance of this type of slab is highly influenced by shear stiffness of the bond between the concrete layers. Analysis confirmed that slab fails when bond is damaged, and layers slip in the support zone.

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“…In the literature it is possible to find several structural applications like shear walls (Hung et al 2017;Sakr et al 2019); slabs and plates (Bastien-Masse and Brühwiler 2016; Li et al , 2016Wu et al 2019;Xie et al 2019;Zhu et al 2020); columns (Ali Dadvar et al 2020;Aoude et al 2015;Astarlioglu and Krauthammer 2014;Fang et al 2019;Naeimi and Moustafa 2020). With beams, studies have been done about the behaviour of reinforced UHPFRC under shear force in different circumstances (Baby et al 2013b;Ji and Liu 2020;Kodur et al 2018): adapting well, proving theories for CC to UHPFRC such as the Modified Compression Field Theory, and developing experimental programmes with UHPFRC and composite beams. Studies on flexural UHPFRC beams (Kodur et al 2018;Solhmirzaei and Kodur 2017;Yang et al 2012Yang et al , 2010Yoo et al 2017a;Yoo and Yoon 2015) have dealt with experimental large-scale UHPFRC beams by representing the cracking pattern characterised by multiple microcracking at initial stages, followed by the evolution of a macrocrack in a singular section while load increased.…”

Section: Modelling Uhpfrc Structural Elementsmentioning

confidence: 99%

Numerical Modelling of UHPFRC: from the Material to the Structural Element

Alcaraz¹,

Eduardo²

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Ultimate shear resistance of ultra-high performance fiber reinforced concrete-normal strength concrete beam

Cited by 22 publications

References 15 publications

Shear resistance and structural hardening resistance models for hybrid NSC-UHPC elements

Shear resistance and structural hardening resistance models for hybrid NSC-UHPC elements

Deflection Analysis of Layered Slabs with Plastic Inserts

Numerical Modelling of UHPFRC: from the Material to the Structural Element

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