Experimental and numerical study on deformation performance of Rubber-Sleeved Stud connector under cyclic load

Zhuang, Bozhou; Liu, Yuqing; Yang, Fei

doi:10.1016/j.conbuildmat.2018.10.099

Cited by 49 publications

(9 citation statements)

References 17 publications

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“…For reducing the stiffness of connectors, a common treatment is wrapping low elastic modulus materials such as foamed plastic, resin mortar, flexible gems, and rubber sleeves (Abe and Hosaka 2002;Mitsunori et al 2000;Deng et al 2020;Zeng et al 2020;Zhuang and Liu 2019;Zhuang et al 2018Zhuang et al , 2020. Abe and Hosaka (2002) applied a new type of flexible connectors to a railway bridge, and verified it could effectively reduce tensile stress generated over the regions at intermediate supports.…”

Section: Introductionmentioning

confidence: 99%

“…The research on uplift-restricted and slip-permitted connector showed it had greater slip deformation and could reduce tensile stress of concrete in the negative moment region of composite beams compared with ordinary connectors (Nie et al 2015;Li et al 2019). Furthermore, Zhuang et al (2018Zhuang et al ( , 2019Zhuang et al ( , 2020 and Xu et al (2020; investigated the shear mechanism and fatigue performance of rubber-sleeved studs (RSS). Besides, the effects of rubber sleeve height, thickness, stud length, and stud diameter on the shear resistance of rubber-sleeved studs was studied by Xu et al (2016) and Su et al (2021).…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Study on the Mechanical Behavior of Prestressed Continuous Composite I-Girder Bridges with Partial Connection

Tang

et al. 2023

J. Bridge Eng.

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In the prestressed composite girder bridges, the shear connectors will transfer a portion of prestress to the steel girders.However, more prestress is preferred to be remained in the concrete slab to improve its anti-cracking behavior and serviceability performance. A Partial Connection-Prestressing (PCP) method is proposed in this paper to decrease the prestress transferred to steel girders. The partial connection is achieved by applying Rubber-Sleeved Studs (RSS) in the prestressed concrete slab in the negative moment region. Since there is no experimental research regarding PCP method in continuous composite girders, two continuous girders specimens were tested under four-point static load to evaluate their mechanical performance. The test results showed that without decreasing ultimate strength and overall stiffness of the steel-concrete composite girders, the PCP method enhanced the cracking load by 3.1 times. Besides, only 12.5% of the prestressing force was transferred into the steel girder at the internal support section with PCP method, while that in girder without PCP reached 25.9%. Thereafter, to elucidate the partial interaction effect and prestress effect on continuous girders' mechanical behavior, numerical models were developed and calibrated with the test results. It was revealed in the numerical analysis that compared with normal composite girder, applying RSS or prestress alone can improve the cracking load respectively by 11.8% and 157.0 %, while the figure increases to 234.3% when applying RSS and prestressing at the same time. The results indicate that applying RSS in the negative moment region can effectively increase the prestressing efficiency in the concrete slab as well as enhance the bridge serviceability and durability.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on the Mechanical Behavior of Prestressed Continuous Composite I-Girder Bridges with Partial Connection

Tang

et al. 2023

J. Bridge Eng.

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“…The above viewpoint is also applicable to the flexural design of steel–concrete composite continuous beams in the positive moment zone. In order to reflect the adverse effect of interface slip on the structural performance, many researchers carried out numerical simulation analyses on the interface slip behavior of composite girder [ 18 , 19 , 20 , 21 ] and proposed a calculation method of a composite girder, considering the interface slip effect [ 22 , 23 , 24 ], with a view towards considering the adverse impact of the interface slip on the structural stiffness, stress, and bearing capacity. Therefore, the mainstream academic view holds that interface slip has an obvious negative effect on the stress state of simply supported composite girder.…”

Section: Introductionmentioning

confidence: 99%

Experiment Analysis on Crack Resistance in Negative Moment Zone of Steel–Concrete Composite Continuous Girder Improved by Interfacial Slip

Dai²,

Chen

et al. 2022

Materials

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Due to the strong interface effect of continuous steel–concrete composite beams with conventional shear connectors, the efficiency of applying pre-stress in the negative moment zone is greatly reduced, which leads to a difficulty of anti-cracking design in the negative moment zone of pre-stressed steel–concrete composite box girder. In order to study the feasibility and the working mechanism of improving the crack resistance of continuous steel–concrete composite bridges by releasing the interfacial slip effect within the negative bending moment region, two groups of model tests were carried out in the paper. Two steel–concrete composite beams were used for model test, one of them using the conventional stud shear connectors, another one using the new shear connectors, named uplift-restricted and slip-permitted shear connectors. The results show that, compared with the composite beam with conventional shear studs, the composite beams with uplift-restricted and slip-permitted shear connectors have a higher pre-stress application efficiency, and the new connector could release the interface slip, which can make the tensile stress distribution in concrete slab more uniform within the negative moment zone, thus increasing the cracking load of concrete slab and reducing the subsequent crack width effectively. This study is helpful to understand the relationship between the interface slip and the anti-crack characteristics in negative moment zones, and a new anti-crack design method is proposed for the design of continuous composite girder.

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“…Various types of connectors that can enhance the composite action in the composite structures have been proposed, such as stud connectors, rebar connectors, and profiled connectors [1][2][3][4][5]. Due to the good structural performance and freedom of welding procedure, studs are the most popular connectors used in composite structures nowadays [6][7][8][9]. However, the methods currently used for constructing steel-concrete composite structures are usually time-consuming and costly, as the methods require the structures to be accomplished on site by welding studs and casting concrete in situ.…”

Section: Introductionmentioning

confidence: 99%

Initial Elastic Stiffness of Bolted Shear Connectors in Steel‐Concrete Composite Structures

Wang

Cao

Liu

et al. 2022

Advances in Civil Engineering

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Bolted shear connectors have the advantages of being easily fitted and dismantled during construction, the initial elastic stiffness of which has a great influence on the structural performance of the connected composite structures. In this paper, the initial elastic behaviors of three types of bolted shear connectors used in steel-concrete composite structures (i.e., the bolt with nonembedded nut, the bolt with single-embedded nut, and the bolt with double-embedded nuts) are investigated using finite element analysis (FEA). After the FE models are verified against the experimental results in other literature, an extensive parametric study is carried out to investigate the effects of eight parameters of the composite structures on the initial shear stiffness and tension stiffness as well as coupling stiffness. Empirical formulas are subsequently developed for obtaining the initial elastic stiffness of the bolted shear connectors, based on which further FEA is performed. The FEA results are in good agreement with the experimental results, illustrating the effectiveness of the empirical formulas.

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Experimental and numerical study on deformation performance of Rubber-Sleeved Stud connector under cyclic load

Cited by 49 publications

References 17 publications

Experimental and Numerical Study on the Mechanical Behavior of Prestressed Continuous Composite I-Girder Bridges with Partial Connection

Experimental and Numerical Study on the Mechanical Behavior of Prestressed Continuous Composite I-Girder Bridges with Partial Connection

Experiment Analysis on Crack Resistance in Negative Moment Zone of Steel–Concrete Composite Continuous Girder Improved by Interfacial Slip

Initial Elastic Stiffness of Bolted Shear Connectors in Steel‐Concrete Composite Structures

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