Experimental study on shear performance of steel–concrete–steel sandwich beams

Leng, Yubing; Song, Xiaojie

doi:10.1016/j.jcsr.2015.12.017

Cited by 39 publications

(6 citation statements)

References 17 publications

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“…The influence of these parameters explains the apparently contradicting views on dowel action reported in the literature of SCS. For fib International Workshop on Beam Shear Zurich, Switzerland, September 5-6, 2016 example, Oduyemi et al (1989) who used long but fewer studs in their beam tests reported that dowel action was negligible and even lower than RC members whereas Leng & Song (2016), who used a large number of studs in their tests, proposed a model based on dowel action that predicts the strength of their tests satisfactorily. Regarding cantilever action, it can be envisaged that the presence of shear studs on the compression zone would be beneficial towards shear strength.…”

Section: Shear-transfer Actionsmentioning

confidence: 99%

Out-of-plane shear strength of steel-concrete sandwich panels

Sagaseta¹,

Francis²

2018

Fib Bulletins

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Steel-concrete-steel (SCS) sandwich panels consist of two steel plates connected with tie bars filled with concrete; composite action is achieved using headed studs in the plates. This form of composite construction has recently regained interest in the construction industry as it allows modular construction and decongestion of reinforcement which is particularly useful in large infrastructure such as tunnels, wind turbines and nuclear energy facilities. This paper investigates the out-of-plane shear resistance of SCS panels without shear reinforcement. In practice, the spacing between tie bars acting as shear reinforcement can be significant and the shear resistance is governed in some cases by that of a member without shear reinforcement. A qualitative comparison of the shear transfer actions is presented between SCS and conventional reinforced concrete (RC) members without shear reinforcement. Existing design formulae for shear in RC are applied to existing experimental data of SCS panels. This study shows that the shear resistance models for RC give conservative predictions of strength of SCS slender panels with low or medium levels of shear connection at the interface between the concrete and the steel. This inbuilt conservatism is due to the bond-slip of the interface resulting into a concentration of the flexural cracks towards mid-span which allows the development of full arching action (shift of Kani's valley). A strut-and-tie model is presented for SCS which provides more accurate predictions of strength in such cases and also in other cases such as short-span members (discontinuity region).

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Section: Shear-transfer Actionsmentioning

confidence: 99%

Out-of-plane shear strength of steel-concrete sandwich panels

Sagaseta¹,

Francis²

2018

Fib Bulletins

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“…Extensive investigations have been conducted on load bearing capacity of SCS beams subjected to shear or SCS panels subjected to punching. The experimental data [20][21][22][23] on SCS beams reveal that beams with small shear span-to-depth ratio (2.5 to 3.5) always exhibit a transverse shear failure with critical diagonal crack. For partial composite SCS beams, bondslip appear between concrete and steel plate, which relieves the loading on the steel plate and weakens the ultimate resistance of the structure [24].…”

Section: Introductionmentioning

confidence: 96%

Numerical-based analytical model of double-layer steel-LHDCC sandwich composites under punching loads

Zhang

Huang

et al. 2022

Composite Structures

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“…Extensive previous experimental and analytical studies have been conducted to investigate the behavior of SCSSB through the examination of different proposed kinds and configurations of shear connections. Leng & Song [5] investigated the shear performance of SCSSB by using round steel bars to connect the skin plates together and the concrete core in addition to headed studs. Nine slender beams with different shear span-to-depth ratios were tested under the action of static loads.…”

Section: Introductionmentioning

confidence: 99%

Torsional Behavior of Steel-Concrete-Steel Sandwich Beams with Welded Stirrups as Shear Connectors

et al. 2023

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The structural performance of a steel-concrete-steel sandwich beam (SCSSB) with welded stirrups to the steel skin plates as shear connections exposed to a pure torsion load was studied in this paper. Eight SCSSB specimens were fabricated and tested under pure torsion. The effects of the compressive strength of the concrete core, 26 and 35 MPa, the thickness of the top and bottom steel skin plates, 2 and 4 mm, and the degree of shear interaction, which represents the number of beam stirrups, between the steel skin plates and the concrete core are 75, 100, and 125%. The experiment beams revealed a similar mode of failure for all SCSSB specimens regarding all considered variables, which started with inclined cracks along the specimens’ side faces and ended with local separation between one of the steel skin plates (top or bottom) and the concrete core. In addition, the experiment results showed an increase in the torsional strength with the increase in the shear connection ratio and the thickness of the steel skin plate, as well as with the increase in the strength of the concrete core. However, it was observed that the torsional ductility of the tested beams is proportional directly to the steel skin plate thickness and degree of interaction and inversely with the concrete compressive strength. The results showed that the use of steel skin plates with welded stirrups as a shear connection could reduce the negative effect of increasing the compressive strength of the concrete core on the torsional ductility of SCSSB. Doi: 10.28991/CEJ-2023-09-01-016 Full Text: PDF

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Experimental study on shear performance of steel–concrete–steel sandwich beams

Cited by 39 publications

References 17 publications

Out-of-plane shear strength of steel-concrete sandwich panels

Out-of-plane shear strength of steel-concrete sandwich panels

Numerical-based analytical model of double-layer steel-LHDCC sandwich composites under punching loads

Torsional Behavior of Steel-Concrete-Steel Sandwich Beams with Welded Stirrups as Shear Connectors

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