Shear properties of shear stud connectors under combined tension and shear loading

AN Ran, WANG You-zhi

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J Jilin Univ Eng Tech Ed ›› 2023, Vol. 53 ›› Issue (09) : 2554-2562. DOI: 10.13229/j.cnki.jdxbgxb.20211243

Shear properties of shear stud connectors under combined tension and shear loading

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Abstract

In order to understand the mechanical properties of shear stud connectors under combined tension and shear loading， five groups of model tests were tested， including uniaxial pull-out tests， uniaxial push-out tests， and combined tension and shear loading tests. Combined with finite element models， influence of concrete strength and stud size on shear capacity were analyzed， and the load-slip relationship， the ultimate shear capacity formula of shear stud connectors under tension and shear loading were proposed. The results show that as the applied tensile force ratio increase to 0.6， the shear stiffness reduces 69%； and the ratio of ultimate elastic capacity to ultimate shear capacity reduces from 0.55 to 0.24， and the ultimate shear capacity reduces 31%. The effects of concrete strength and tensile force ratio on the shear capacity of shear stud connectors are correlated. The proposed load-slip relationship and ultimate shear capacity formula under tension and shear loading can be applied to engineering design and calculation.

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bridge engineering / steel concrete composite beam / shear stud connector / shear stiffness / load-slip curve / ultimate shear capacity

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AN Ran , WANG You-zhi. Shear properties of shear stud connectors under combined tension and shear loading. Journal of Jilin University(Engineering and Technology Edition). 2023, 53(09): 2554-2562 https://doi.org/10.13229/j.cnki.jdxbgxb.20211243

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