Perforated shear + reinforcement bar connectors in a timber-concrete composite solution. Analytical and numerical approach

Suárez-Riestra, Félix; Estévez-Cimadevila, Javier; Gutiérrez, Emilio Martín; Otero-Chans, Dolores

doi:10.1016/j.compositesb.2018.08.074

Cited by 20 publications

(13 citation statements)

References 20 publications

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“…Podobnými perforovanými oceľovými lištami sa zaoberal aj výskum na Univerzite v A Coruña (Španielsko) [5]. Tie kombinovali aj s účinkom doplnkovej priečnej a pozdĺžnej betonárskej výstuže (obr.2).…”

Section: Súčasný Stav Problematikyunclassified

“…Obr. 2 Schémy drevobetónových nosníkov s použitými perforovanými oceľovými lištami [5] Pre porovnanie výsledkov bol zmenený materiálový model betónu na nelineárny (Menetrey-William [7]), ako aj analyzovaný efekt po porušení dreveného prierezu na deformáciu a napätia v drevobetónovom nosníkuvytvorením prerušenia dreveného prierezu v strede nosníka.…”

Section: Súčasný Stav Problematikyunclassified

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Analýza efektívnosti spriahovacích líšt v drevobetónových konštrukciách

Petrík¹

2022

Juniorstav

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Spriahovacie lišty ako alternatívny spôsob spriahovania oceľobetónových konštrukcií našli uplatnenie najmä v mostnom staviteľstve, no stále častejšie sa vyskytujú aj v objektoch pozemných stavieb, kde je potrebné prekonávať veľké rozpätia. Použitie spriahovacích líšt v drevobetónových konštrukciách vzhľadom na absenciu komplexných poznatkov nedosahuje úrovne iných druhov spriahovacích prostriedkov. Numerickými simuláciami je možné analyzovať správanie sa takýchto konštrukcií, ako aj sledovať napätostné parametre jednotlivých prvkov. Na základe výsledkov z týchto simulácií je možné zhodnotiť potenciál takýchto konštrukcií, ako aj ďalšie smery výskumu drevobetónových konštrukcií so spriahovacími lištami.

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Section: Súčasný Stav Problematikyunclassified

Analýza efektívnosti spriahovacích líšt v drevobetónových konštrukciách

Petrík¹

2022

Juniorstav

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“…Dias [9] and Symons et al [10] proposed the calculations for the slip moduli of the screw connections, considering the inclination of the screw, and the interfacial plywood. In addition, the notch-screw connections [11,12] and glued-in steel-plate connections [13,14] also possessed excellent shear performances. Available experimental investigations about full-scale TCC beams/floors demonstrated that the existing shear connections can provide sufficient composite efficiency for TCC structures, and showed the great potential application in multi-storey buildings.…”

Section: Introductionmentioning

confidence: 98%

Shear Behaviors of Steel-Plate Connections for Timber-Concrete Composite Beams with Prefabricated Concrete Slabs

Shi¹,

Huang²,

Yang³

et al. 2023

Journal of Renewable Materials

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To promote the development of timber-concrete composite (TCC) structures, it is necessary to propose the assembly-type connections with high assembly efficiency and shear performances. This article presented the experimental results of the innovative steel-plate connections for TCC beams using prefabricated concrete slabs. The steel-plate connections consisted of the screws and the steel-plates. The steel-plates were partly embedded in the concrete slabs. The concrete slabs and the timber beams were connected by screws through the steel-plates. The parameters researched in this article included screw number, angle steel as the reinforcement for anchoring, and shallow notches on the timber surface to restrict the slip of the steel-plates. Experimental results were discussed in terms of failure modes, ultimate bearing capacities, and slip moduli. It was found that increasing the number of screws could lead to the obvious improvement on the ultimate bearing capacities and the slip moduli at the ultimate state; and the angle steel as the reinforcement showed the slight influence on the ultimate bearing capacities and the slip moduli. The application of the shallow notch can greatly improve the ultimate bearing capacities and the slip moduli. The calculation models for the ultimate bearing capacities and the slip moduli of the steel-plate connections with and without shallow notches were proposed, which showed good accuracy compared with the experimental results.

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“…Currently, increasing attention is being given to the reinforcement of timber structures, and many scholars have proposed reinforcement methods for timber structures [ 1 , 2 ]. The TLC composite beam is a kind of structural component formed by combining lightweight concrete and timber, and it is not only used for new structures but also for reinforcement of existing timber structures [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. The TLC composite beam consists of a lightweight concrete flange supported by a timber web, which is attached by different types of connectors.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Timber−Lightweight Concrete Composite Beams with Ductile Bolt Connectors

Wei

Chen

et al. 2021

Materials

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A timber–lightweight−concrete (TLC) composite beam connected with a ductile connector in which the ductile connector is made of a stainless−steel bolt anchored with nuts at both ends was proposed. The push−out results and bending performance of the TLC composite specimens were investigated by experimental testing. The push−out results of the shear specimens show that shear–slip curves exhibit good ductility and that their failure can be attributed to bolt buckling accompanied by lightweight concrete cracking. Through the bending tests of ten TLC composite beams and two contrast (pure timber) beams, the effects of different bolt diameters on the strengthening effect of the TLC composite beams were studied. The results show that the TLC composite beams and contrast timber beams break on the timber fiber at the lowest edge of the TLC composite beam, and the failure mode is attributed to bending failure, whereas the bolt connectors and lightweight concrete have no obvious breakage; moreover, the ductile bolt connectors show a good connection performance until the TLC composite beams fail. The ultimate bearing capacities of the TLC composite beams increase 2.03–3.5 times compared to those of the contrast beams, while the mid-span maximum deformation decrease nearly doubled.

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Perforated shear + reinforcement bar connectors in a timber-concrete composite solution. Analytical and numerical approach

Cited by 20 publications

References 20 publications

Analýza efektívnosti spriahovacích líšt v drevobetónových konštrukciách

Analýza efektívnosti spriahovacích líšt v drevobetónových konštrukciách

Shear Behaviors of Steel-Plate Connections for Timber-Concrete Composite Beams with Prefabricated Concrete Slabs

Experimental Study on Timber−Lightweight Concrete Composite Beams with Ductile Bolt Connectors

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