Finite element modelling of steel–concrete composite beams with high-strength friction-grip bolt shear connectors

Liu, Xinpei; Bradford, Mark A.; Chen, Qingjun; Ban, Huiyong

doi:10.1016/j.finel.2015.09.004

Cited by 91 publications

(41 citation statements)

References 19 publications

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“…Shear connection ratio of a composite beam depends on the number of connectors in the beam. A full shear connection in steel-concrete composite beam is recommended by most of the researches as it will gives higher ultimate strengths than partial shear connection [31][32][33][34][35][36]. This also proved by Kwon et al that the strength, stiffness, and deformation capacity of the composite beams increased with increasing shear-connection ratio [29].…”

Section: Effect Of Bolt Spacing Number Of Bolts (Shear Connection Ramentioning

confidence: 88%

Structural Behavior of Steel-Concrete Composite Beam using Bolted Shear Connectors: A Review

et al. 2018

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Conventional steel-concrete composite beams have been recognized to exhibit stronger structural characteristics, in terms of strength and stiffness, when compared to pure steel or reinforced concrete beams. However, currently most steel beam is fully attached to the concrete slab; this means that the shear connectors are welded through the steel decking on to the steel beam and cast into concrete slab to fulfill the necessary shear connection. Recently, the deconstruction and reuse of the components almost impossible. In order to achieve a sustainable structural system, precast concrete slabs are attached to a steel beam using bolted shear connectors in prefabricated holes have been introduced as an alternative to the conventional connectors in steel -concrete composite beam system. This paper reviews the structural behavior of composite beam system such as the strength, stiffness, slip behavior, failure mode and sustainability obtained by experiment and numerical studies in order to address the applicability and efficiency of the composite beams having precast concrete slabs and bolted shear connectors.

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Section: Effect Of Bolt Spacing Number Of Bolts (Shear Connection Ramentioning

confidence: 88%

Structural Behavior of Steel-Concrete Composite Beam using Bolted Shear Connectors: A Review

et al. 2018

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“…Following [21] as well as in accordance with recent example of refined FE modelling for composite structures (see for example [24]), a key role was assigned to contact mechanical interactions, being aimed to reproduce all the possible contacts at the steel-to-steel or steel-to-concrete interfaces. The shear stud connectors were fully embedded within the concrete slab mesh, via the embedded constraint of ABAQUS, so to reproduce a fully rigid connection between steel connectors and the surrounding concrete.…”

Section: Model Assemblymentioning

confidence: 99%

“…The same embedded constraint was also used for the steel rebars, as conventionally in use for steel-concrete composite beams and structural systems (i.e. [21,[24][25][26][27][28][29][30].…”

Section: Model Assemblymentioning

confidence: 99%

Numerical assessment of slab-interaction effects on the behaviour of steel-concrete composite joints

Amadio

Bedon

Fasan

2017

Journal of Constructional Steel Research

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In current design practice for seismic resistant steel braced frames, general rules and standard provisions are\ud aimed to ensure a structural behaviour for beam-to-column joints of non-braced spans as close as possible to\ud perfect hinges. This is done to prevent any kind of interaction with the bracing systems, in particular under\ud horizontal loads. However, the global performance of composite joints is markedly affected by the structural\ud interaction between the concrete slab and the steel components and - especially during seismic events - struts\ud can occur in the slab at the beam-to-column intersection.\ud In this paper, the possibility of realizing a composite joint that behaves as moment-resisting under gravitational\ud loads and essentially as hinged under horizontal loads is investigated. Aiming to assess the actual slab-interaction\ud effects on the overall response, a full 3D Finite Element (FE) model representative of a beam-to-column composite\ud joint taking part of a braced frame is described in ABAQUS and validated towards past full-scale experiments.\ud A parametric study is hence proposed, by accounting for three geometrical configurations, being characterized by\ud (i) isolated slab with absence of rebar continuity (i.e. fully disconnected slab and steel joint only), (ii) presence of\ud slab with partial column interaction (i.e. isolated slab and continuity of rebar), (iii) presence of fully interacting\ud slab. It is shown that, if properly detailed, a joint with isolated slab and continuous rebars can be used in nonbraced\ud spans of composite braced frames without affecting the behaviour of the bracing system (i.e. as in\ud presence of a hinge). Nonetheless, the composite beam can be designed as continuous on multiple supports\ud under vertical loads, hence leading to a reduction of the steel cross-sectional size

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“…e main reason is their optimum structural performance and favourable cost. To achieve the load transfer between steel and concrete components, various types of shear connectors have been proposed, such as headed studs [1], perfobond ribs [2][3][4], channel connectors [5], bolted connectors [6], and composite dowels [7]. e headed stud connector is most popular in engineering practice.…”

Section: Introductionmentioning

confidence: 99%

Parametric Push‐Out Analysis on Perfobond Rib with Headed Stud Mixed Shear Connector

Zheng

Zhao

Liu

2019

Advances in Civil Engineering

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In steel and concrete composite structures, it is unfavourable to install many headed studs or perfobond ribs with narrow spacings at the joints. To solve this problem, a new type of a mixed shear connector was developed by combining a headed stud and perfobond rib at the same steel beam flange. In this paper, totally nine push-out tests were conducted. The main purpose was to compare the failure mode and the load-slip behavior of the headed stud, perfobond rib, and mixed shear connector. Furthermore, 19 nonlinear finite element simulations were performed. The effects of connector dimension and material properties on the structural behaviors of mixed shear connectors were studied. Based on the experimental and parametric study, an analytical equation was finally proposed to evaluate the shear capacity of perfobond rib with a headed stud mixed shear connector.

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Finite element modelling of steel–concrete composite beams with high-strength friction-grip bolt shear connectors

Cited by 91 publications

References 19 publications

Structural Behavior of Steel-Concrete Composite Beam using Bolted Shear Connectors: A Review

Structural Behavior of Steel-Concrete Composite Beam using Bolted Shear Connectors: A Review

Numerical assessment of slab-interaction effects on the behaviour of steel-concrete composite joints

Parametric Push‐Out Analysis on Perfobond Rib with Headed Stud Mixed Shear Connector

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