Single keyed joints behaviour and capacity formulation under direct shear using non-linear finite-element analysis

Al-Rousan, Rajai Z.; Qudaisat, Muneer S.

doi:10.1016/j.istruc.2022.11.109

Cited by 10 publications

(1 citation statement)

References 19 publications

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“…Choi et al 13 believe that the appropriate level of confining stress and epoxy can prevent sudden failure of joints at high amplitude cyclical loading conditions. Al-Rousan et al 14 study the influence of confining stress and concrete compressive strength on the shear behavior of dry single-keyed joints through non-linear FEA simulation, and a shear capacity formula was proposed. Zhang et al 15 performed full-scale tests on the shear behavior of multiple-keyed epoxy joints, and proposed a new formula considering the uneven distribution of shear stress.…”

Section: Introductionmentioning

confidence: 99%

Shear behavior and construction method of steel shear keyed joints in precast segmental beams

Zou

Xiang

2023

Sci Rep

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The joints between segments represent weak points and introduce discontinuity into structures, therefore they are particularly significant in precast concrete segmental bridges. In this study, a new steel shear key was designed, and 6 full-scale tests were conducted. Various shear keys and joint types were taken as experimental parameters to study crack propagation, failure mode, shear slip, ultimate bearing capacity, and the residual bearing capacity of various joints under direct shear loading. The results show that the stiffness and shear capacity of steel shear keyed joints were higher than concrete key joints, and the structural system was more stable than concrete keyed joints at the moment of cracking. Both the concrete key and steel key epoxied joints suffered direct shear failure. However, different to the concrete epoxied joints which experienced brittle failure, steel key epoxied joints demonstrated a large residual capacity. Based on traditional segmental bridges construction, construction methods involving steel shear keyed joints included short-line match, long-line match, and modular methods are introduced. Finally, the feasibility of steel shear keyed joints construction was verified via engineering tests.

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Section: Introductionmentioning

confidence: 99%