Experimental investigation on the cyclic performance of perfobond rib shear connectors

Li, Zhixiang; Wu, Bin; Liao, M.; Yang, Xianjie; Deng, Kailai; Zhao, Canhui

doi:10.1177/1369433220939211

Cited by 5 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under cyclic loading, the peak shear resistance significantly decreases. Li et al (2020) performed cyclic tests on four PBL shear connector specimens. The cohesive strength and shear-friction effect deteriorated more quickly under cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

Hysteresis shear-slip model of PBL shear connectors under cyclic loading

Deng,

Wang,

Zhu

et al. 2023

Advances in Structural Engineering

Self Cite

View full text Add to dashboard Cite

This paper proposes a hysteresis model for the perfobond rib shear connector (known as a PBL shear connector) to decrease its mechanical behavior under cyclic loading. A total of 12 PBL shear connector specimens were designed with variable dimensions. The hysteresis curves of all specimens were obtained under cyclic displacement. On the basis of the results, a four-line skeleton curve is developed to reproduce the skeleton curve. Equations for calculating the featured shear resistances and slippages are then proposed, and energy-based cyclic deteriorations are adopted. Four types of deteriorations are specified: fundamental strength; post-peak strength; unloading stiffness; and accelerated reloading slip. Double friction-slip axes are developed to reproduce the pinching effect. According to a comparison of the calculated and tested results, the proposed model can reproduce the hysteresis model of PBL shear connectors under cyclic loading.

show abstract

Section: Introductionmentioning

confidence: 99%

Hysteresis shear-slip model of PBL shear connectors under cyclic loading

Deng,

Wang,

Zhu

et al. 2023

Advances in Structural Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…According to the research on the mechanical properties of PBL shear keys under earthquake action, it is found that the stress forms under static and reciprocating actions are significantly different. The bearing capacity of shear keys is significantly reduced, and the stiffness also has a certain degree of degradation [33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Push-Out Test and Hysteretic Performance Study of Semi-Rigid Shear Keys with the Triple-Folded Web of Flange

et al. 2022

View full text Add to dashboard Cite

The PBL (Perfobond Leiste) shear connector has the advantages of high bearing capacity and strong constraint ability; however, the traditional PBL shear connector has strong and weak axis problems, and its stiffness is large, resulting in weak deformation ability. To this end, this paper proposes a new type of flange triple-web shear key and obtains the new shear key’s mechanical properties and failure mechanism through the push-out test. The results show that the failure mode of the new shear key is the deformation of the steel plate on the web and the edge of the opening, which has a high bearing capacity, outstanding deformation ability, and good integrity with concrete, showing obvious semi-rigid characteristics. Through numerical analysis, the effects of flange width, web height, and steel plate thickness on the mechanical properties of shear keys are obtained. Based on the fitting analysis method, the calculation formula of shear key bearing capacity is proposed. Finally, the horizontal seismic performance of the shear key is numerically simulated. It is found that the hysteretic curve of the shear key is full and shows good energy dissipation capacity.

show abstract