Numerical Analysis on Shear Behavior of Grouped Head Stud Shear Connectors between Steel Girders and Precast Concrete Slabs with High-Strength Concrete-Filled Shear Pockets

Wang, Shaodi; Fang, Zhuangcheng; Jiang, Haibo; Chen, Gongfa

doi:10.1061/(asce)be.1943-5592.0001727

Cited by 26 publications

(15 citation statements)

References 28 publications

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“…Subsequently, as shear deformation of the stud continues to develop, the separation increases dramatically. 42 For specimens subjected to a bidirectional shear force (0.3HV1, 0.6HV1, and 0.3HV3), the normal separations exhibited a greater growth rate. When the peak load was reached, the normal separations of specimens V1, 0.3HV1, 0.6HV1, V3, and 0.3HV3 were 0.135 mm, 0.224 mm, 0.261 mm, 0.126 mm, and 0.222 mm, respectively.…”

Section: Transverse Slip and Separation Developmentmentioning

confidence: 89%

“…The surface-to-surface contact algorithm was adopted in this numerical study because this contact can obtain accurate results compared to the test results. 42 The contact surfaces associated with the head studs and steel plate were set as the master surface, and the concrete surfaces were chosen to be the slave surface. Moreover, a friction coefficient of 0.25 was used for the contact between the head studs and concrete.…”

Section: Contact Modelingmentioning

confidence: 99%

“…The concrete damage plasticity (CDP) model was used for the material modeling of concrete. 42,44 The stress-strain relationship of concrete in compression and in tension is needed. The compressive stress-strain curve of concrete presented by Eurocode 2 45 was adopted and is given as follows:…”

Section: Concrete Propertiesmentioning

confidence: 99%

“…where w represents the crack width; constants c 1 and c 2 are taken as 3.0 and 6.93, respectively; and w c is the crack width when the concrete fails, which can be calculated by Equation (7). 42 w c ¼ 0:375…”

Section: Concrete Propertiesmentioning

confidence: 99%

See 3 more Smart Citations

Bidirectional shear behavior of stud connectors in steel‐concrete composite monorail track beams

Liu

Deng

et al. 2022

Structural Concrete

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Stud connectors in steel-concrete composite track beams of straddle-type monorail transits experience longitudinal and transverse shear forces. Little is known about the effect of transverse shear forces on stud connectors; thus, further research is needed to evaluate the serviceability of steel-concrete composite track beams. This study investigated the shear performance of stud connectors subjected to bidirectional shear force by means of modified pushout tests and finite element (FE) analyses. The test results demonstrated that the presence of transverse shear forces significantly decreased the vertical shear strength and stiffness of the stud connectors. In addition, the group stud effect aggravated the reduction in shear strength and shear stiffness per stud under bidirectional shear forces. The transverse shear force also considerably affected the failure modes of the stud root and the damage range of the concrete. Furthermore, the numerical results were verified using the test results in terms of the load-slip relationship and failure modes. Based on the verified FE model, the strength reduction factor of stud connectors was proposed incorporating the presence of transverse shear force, and the decreasing trend of stud shear strength under bidirectional shear force was presented. This study provides additional data for formulating design rules of stud connectors in monorail steel-concrete composite track beams.

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Section: Transverse Slip and Separation Developmentmentioning

confidence: 89%

Section: Contact Modelingmentioning

confidence: 99%

Section: Concrete Propertiesmentioning

confidence: 99%

Section: Concrete Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

Bidirectional shear behavior of stud connectors in steel‐concrete composite monorail track beams

Liu

Deng

et al. 2022

Structural Concrete

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“…The original empirical formulae hardly reflect the interaction mechanism between stud and concrete, so they cannot accurately predict the large-diameter connectors’ stiffness, shear strength, and load–slip curves. Chuah et al [ 12 ], An & Cederwall [ 13 ], Nie et al [ 14 ], Hegger et al [ 15 , 16 ], Döinghaus et al [ 17 ], and Wang et al [ 18 ] investigated the effects of high-strength concrete and high-strength steel commonly used in engineering on the shear behavior of headed stud shear connectors. The studies showed that there exists a critical value in the effect of the compressive strength of concrete on the shear behavior.…”

Section: Introductionmentioning

confidence: 99%

A Trilinear Model for the Load–Slip Behavior of Headed Stud Shear Connectors

Meng

Wang

2023

Materials

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Headed stud shear connectors are most broadly applied in various composite structures. There exist plenty of empirical formulae for load–slip curves. However, most of them are fitting formulae in particular forms. Due to the lack of physical model support, fitting empirical formulae apply only to cases with similar parameters to the tests. Therefore, this paper analyzes the load–slip curves of existing headed stud connectors, proposes three stages of slip deformation in the shear connectors and the corresponding trilinear model, and presents the analytical formulae for the stiffness and strength of headed stud shear connectors. Firstly, we model the headed studs and surrounding concrete as beams on the foundation model, derive the equivalent shear stiffness equations for headed studs, and establish the load–slip behaviors for the first two stages. Then, the connectors’ shear stiffness and shear strength in the third stage are derived based on the head stud’s plastic deformation characteristics and failure mode. Finally, the numerical results are presented and verified with the existing test results, showing that the trilinear model is conceptually straightforward, easy to apply, and has sufficient accuracy.

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Finite element analysis of the shear performance of box-groove interface of ultra-high-performance concrete (UHPC)-normal strength concrete (NSC) composite girder

Farouk

Zhu

Yuhui³

2022

Innov. Infrastruct. Solut.

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Numerical Analysis on Shear Behavior of Grouped Head Stud Shear Connectors between Steel Girders and Precast Concrete Slabs with High-Strength Concrete-Filled Shear Pockets

Cited by 26 publications

References 28 publications

Bidirectional shear behavior of stud connectors in steel‐concrete composite monorail track beams

Bidirectional shear behavior of stud connectors in steel‐concrete composite monorail track beams

A Trilinear Model for the Load–Slip Behavior of Headed Stud Shear Connectors

Finite element analysis of the shear performance of box-groove interface of ultra-high-performance concrete (UHPC)-normal strength concrete (NSC) composite girder

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