Minimum shear reinforcement ratio of steel plate concrete beams

Qin, Feng; Tan, Sinjaya; Yan, Jie; Li, Mo; Mo, Y. L.; Fan, Feng

doi:10.1617/s11527-015-0763-7

Cited by 15 publications

(4 citation statements)

References 11 publications

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“…5 had a higher / , than test with almost full shear connection. These results might seem odd at first instance as the trend is opposite to tests with shear reinforcement in which lower bond results in a reduced shear strength as shown experimentally and analytically by Hong et al (2010) and Qin et al (2016).…”

Section: Influence Of the Shear Connection Ratiomentioning

confidence: 83%

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: Influence Of the Shear Connection Ratiomentioning

confidence: 83%

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

Sagaseta¹,

Francis²

2018

Fib Bulletins

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“…The number of tie-bars in the SC composite structure between the maximum bending moment and zero bending moment could be no less than 10. In addition, the tie-bars should satisfy the remand of the lowest reinforcement ratio (ρ t,min ) [26]. The formula is shown in the following:…”

Section: Design Methods For Tie-bars In Sc Composite Beam Under Cycli...mentioning

confidence: 99%

Numerical Study on Minimum Shear Connection Ratio of Tie-Bars in Steel Plate–Concrete Composite Beams Subjected to Out-of-Plane Cyclic Loading

Liu

et al. 2022

Applied Sciences

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The failure modes of tie-bars under monotonic loading and cyclic loading are ductility and brittleness, respectively. They can significantly affect the design for tie-bars in a steel plate–concrete (SC) composite structure. A 3D finite element model of a SC composite beam was developed and verified through a quasi-static test. Two rules on the interfacial shear distribution were deduced and verified. Then, a total of 188 finite element models were developed to investigate the minimum shear connection ratio of tie-bars in SC composite beams, which can ensure the sufficient energy dissipation capacity of a SC composite beam under out-of-plane cyclic loading. The influences of the shear connection ratio, shear span versus depth ratio, stiffness, and number of tie-bars on the seismic behavior of a SC composite beam were investigated. Finally, a design method for tie-bars in the SC composite beam under out-of-plane cyclic loading was proposed.

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“…Due to its great ultimate strength-to-cost performance [14], SCS shows adaptable potential applications in offshore structures. SCS composites have been used for gravity-based Arctic offshore caisson structures (GBS) [15,16], LNG or oil containers [17], undersea oil production modules [18], immersed tube tunnel construction [19,20], shear walls [21], third-generation nuclear power plants [22,23], offshore decks [18], and bridge decks [18]. The key benefits of SCS composite structure are: (1) steel plates play a role in flexural reinforcement and suggest a lasting formwork that reduces site labour work and improves construction effectiveness [14]; (2) steel plates can be simply cut to any form, and the shear connectors can be quickly connected, reducing the work required for the cutting, bending, and tying of the reinforcement bars; and (3) steel plates are impermeable and benefit impact-and blast-resistant films.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ultra-Lightweight High-Ductility Cementitious Composite in Steel–Concrete–Steel (SCS) Plate to Mitigate Ship Slamming Loads

Mousavi

Khoob

2023

J. Compos. Sci.

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Bottom slamming loads cause considerable local damage to a ship’s body and reduce the ship’s structural performance against harsh sea waves. Although extensive studies have worked on stiffening elements to compensate for local damage due to slamming loads, few studies have concentrated on the ship’s body itself while using new generations of composite plates. Accordingly, a numerical study is conducted to determine the effect of using ultra-lightweight high-ductility cementitious composite in steel–concrete–steel (SCS) composite plate to mitigate bottom slamming loads. A large-scale model of the ship using SCS composite plates is modelled in Abaqus software, and fluid–solid (FSI) interaction is precisely modelled using the Coupled Eulerian–Lagrangian (CEL) method. The results show that using the CEL method with a large-scale 3D model precisely simulates FSI by providing a 6.5% deviation from the experimental result. Moreover, using an SCS plate when considering ultra-lightweight high-ductility cementitious composite results in a considerable reduction (around 95%) in the maximum strain of the ship body and, accordingly, reduces local damage so that, although about 22% of the strain of the outer layer is transferred to the inner part of the ship body containing only steel plate, almost 0% stress transfer is observed for the SCS-based ship’s structure.

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Minimum shear reinforcement ratio of steel plate concrete beams

Cited by 15 publications

References 11 publications

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

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

Numerical Study on Minimum Shear Connection Ratio of Tie-Bars in Steel Plate–Concrete Composite Beams Subjected to Out-of-Plane Cyclic Loading

Effect of Ultra-Lightweight High-Ductility Cementitious Composite in Steel–Concrete–Steel (SCS) Plate to Mitigate Ship Slamming Loads

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