Analytical Study on Internal Force Transfer of Perfobond Rib Shear Connector Group Using a Nonlinear Spring Model

Zhang, Qinghua; Jia, Dechang; Bao, Yi; Cheng, Zhenyu; Bu, Yizhi; Qiao, Li

doi:10.1061/(asce)be.1943-5592.0001123

Cited by 27 publications

(11 citation statements)

References 14 publications

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“…In the linear part of the curves, little strain was recorded for the transverse rebars prior to reaching a load of 260.0 kN, thereafter mechanism of the PBL was activated and strains in transverse rebar rapidly increased up to the failure. Although visible discreteness was observed between the loadstrain curves from the identical gauges of ''rebar1" and ''rebar2", the ultimate strains for the rebars obtained from the two strain gauges were close with an average value of 2400 le, which similar to the case observed for the transverse rebars of PBL reported earlier [9]. Fig.…”

Section: Load-strain Curvessupporting

confidence: 84%

“…No buckling was found in the steel plates and steel cells for all tests, except for the local scratches that appeared on the steel plate surface around the welding roots of steel studs. As it was observed previously [5][6][7][8][9], the transverse steel rebar of PBL connector failed in a tension shear mode. The ultimate failure modes of the steel studs and the transverse rebars are show in Fig.…”

Section: General Observationssupporting

confidence: 72%

“…The shear resistance of PBL mainly comes from bonding effects at the steel plate/concrete interface, concrete dowel action, and resistance of transverse steel rebar. Since the PBL was proposed, structural behavior including the failure mechanism, ultimate strength, and load-slip relationship have been gradually investigated by many researchers [5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Previous study indicated that the bearing capacity of a steel stud or PBL shear connector is determined by the mechanical properties of concrete surrounding the connector, in addition to the geometrical dimensions and strength of steel elements.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental evaluation of shear connectors using reactive powder concrete under natural curing condition

Mosallam

Fang

et al. 2018

Construction and Building Materials

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Section: Load-strain Curvessupporting

confidence: 84%

Section: General Observationssupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental evaluation of shear connectors using reactive powder concrete under natural curing condition

Mosallam

Fang

et al. 2018

Construction and Building Materials

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show abstract

“…Zhao et al (2018) addressed the contribution of the adhesive effect, shear-friction effect, and dowel action to the bearing capacity of PBL shear connectors. Moreover, the mechanical behavior of grouped PBL shear connectors under monotonic loading has also been studied experimentally and theoretically (Li et al, 2018;Zhang et al, 2017aZhang et al, , 2017b.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the cyclic performance of perfobond rib shear connectors

Liao

et al. 2020

Advances in Structural Engineering

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The behavior of perfobond rib shear connectors (PBL shear connectors) under monotonic loading has been widely studied. However, the performance of these connectors under cyclic loading is poorly understood and has seldom been investigated. This work presents an experimental study focusing on the cyclic performance of representative PBL shear connectors with passing rebar. Optical fibers were introduced to measure the detailed strain distributions. Results showed that the bearing capacity of these connectors could reduce up to 55.04% when compared with that under monotonic loading. The performance of these connectors differed significantly between the pull and push directions in the cyclic loading process. The concrete cracks, relative slip, and strains were developed earlier and more completely under pull than under push. Furthermore, rapid stiffness degradation, severe cracking and deformation of the concrete dowels were revealed, indicating the rapid failure of the adhesive effect, reduction of both the shear-friction effect and the dowel action of the passing rebars. These factors all contributed to the observed significant cyclic deterioration of the peak load and the slip. Based on this, a modified formula was proposed to consider the reduction effect. Comparisons between the analytical solution and test results validated the formula.

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“…e steel-concrete hybrid pylon could be an alternative for the construction of the cable-stayed bridges, since the lower part of the pylon could be constructed as a concrete structure and the upper part of the pylon could be fabricated as a steel structure. Besides, the upper steel pylon is also beneficial to the cablepylon anchorage system and the accelerated bridge construction [4][5][6]. e combination of the upper steel pylon and the lower concrete pylon is the joint of the steelconcrete hybrid pylon, and its load transfer mechanism is the study objective of this paper.…”

Section: Introductionmentioning

confidence: 99%

Load Transfer Mechanism of Hybrid Pylon Joint with Cells and Bearing Plates

Liu

Wang

et al. 2018

Advances in Civil Engineering

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To investigate the load transfer mechanism of the steel-concrete hybrid pylon joint with cells and bearing plates, a theoretical model based on the continuous elastic interlayer method was established. Both the slip effect at the steel-concrete interface and the local compression effect of the bearing plate were considered in the proposed theoretical model. A segment model test with a 1 : 3 scale was carried out to obtain the strain distribution of the hybrid joint and the relative slip between steel and concrete components. Finite element analysis was implemented on the tested segment model, and the structural performance of the tested hybrid joint was compared with the FEA results. The test and analysis results show that the stress of steel and concrete components is at a lower level, and the relative slip between steel and concrete components is extremely limited. The bearing plates and shear connectors are the two load-transferring components and could transfer 40% and 60% of the vertical force into the lower concrete pylon, respectively. The vertical force of shear connectors is at a much lower magnitude within 0.6 times the length of the hybrid joint from the bearing plate and will increase gradually within 0.6 to 1.0 times the length of the hybrid joint. The FEA results are in good agreement with the model test results, and the maximum shear force difference between the theoretical analysis results and the FEA results is less than 10%, proving that the proposed theoretical model can reasonably predict the shear force distribution at the steel-concrete interface of the hybrid joint. In addition, the stiffness of shear connectors has limited effect on the shear force distribution at the steel-concrete interface.

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Analytical Study on Internal Force Transfer of Perfobond Rib Shear Connector Group Using a Nonlinear Spring Model

Cited by 27 publications

References 14 publications

Experimental evaluation of shear connectors using reactive powder concrete under natural curing condition

Experimental evaluation of shear connectors using reactive powder concrete under natural curing condition

Experimental investigation on the cyclic performance of perfobond rib shear connectors

Load Transfer Mechanism of Hybrid Pylon Joint with Cells and Bearing Plates

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