Cracking of a prefabricated steel truss-concrete composite beam with pre-embedded shear studs under hogging moment

Yan-mei, Gao; Zhou, Zhixiang; Dong, Liang; Wang, Yinhui

doi:10.12989/scs.2016.21.5.981

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…The static shear-slip behaviour of PCSS connectors has been investigated and validated under monotonic loads in previous work (Gao et al, 2021). Moreover, a full-scale experiment of the composite beam using PCSS connectors has verified the feasibility of PCSS in composite bridges (Wang et al, 2016). Meanwhile, composite bridges are generally subjected to cyclic impacts and extreme events, such as overloading, earthquake, collision, etc.…”

Section: Existing Research Gapsmentioning

confidence: 98%

Cyclic performance of prefabricated composite shear stud connectors for accelerated bridge construction

Li,

Heng,

Zhou

et al. 2023

Advances in Structural Engineering

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This study examines the cyclic shear-slip performance of a novel prefabricated composite shear stud (PCSS) connector designed for accelerated bridge construction (ABC) of composite structures. An in-depth experimental procedure is employed involving the design and fabrication of four push-out specimens with two different stud configurations. The specimens are then tested under both monotonic and cyclic-to-monotonic loading protocols. Upon completion of the testing phase, a meticulous inspection of the fractography is conducted to delineate and qualify the failure mode of the PCSS connectors. Simultaneously, a comprehensive shear-slip curve is derived from the measured data, enabling a detailed analysis over the mechanical performance. Furthermore, the study calculates a series of deformation-associated indicators from the shear-slip curve, effectively quantifying the ductility, recoverability, and capacity of the PCSS. The test results accentuate a well-deformed and ductile failure mode of the tested PCSS specimens, marked by the stud fracture and crushing of surrounding concrete. This could be attributed to the constraint of vertical plates of the PCSS on the concrete, which improves the capacity and recoverability of the PCSS. Whereas, the performance of the PCSS is also notably influenced by the group nail effect, for which the ductility and per-stud capacity degrade with the increase in the number of studs. Especially, the PCSS specimen exhibits full elastic-to-plastic hysteresis loops under cyclic loads, together with the satisfied ductility, implying an excellent potential of the PCSS to dissipate energy under impact loads. In addition, the PCSS displays a robust stiffness across different cyclic loading blocks. Hence, satisfactory post-damage ductility has still been observed in the PCSS under the monotonic loading after the cyclic loading. In conclusion, this work elucidates the superiority of the PCSS in terms of capacity, ductility, and recoverability, providing a promising basis for their application in the accelerated construction of composite bridges.

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Section: Existing Research Gapsmentioning

confidence: 98%

Cyclic performance of prefabricated composite shear stud connectors for accelerated bridge construction

Li,

Heng,

Zhou

et al. 2023

Advances in Structural Engineering

Self Cite

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show abstract

“…In the PCSS, no post-cast work is required, and the prestress can be easily applied in the concrete deck in an efficient way. The feasibility of the PCSS connector has been preliminarily verified through the fabrication experiment [23]. However, due to the limited number of specimens, the shear-slip behaviour, which reflects the load transfer between the concrete and steel,…”

Section: Introductionmentioning

confidence: 99%

Shear-slip behaviour of prefabricated composite shear stud connectors in composite bridges

Yan-mei

Liu

Wang

et al. 2021

Engineering Structures

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Cracking of a prefabricated steel truss-concrete composite beam with pre-embedded shear studs under hogging moment

Cited by 2 publications

References 14 publications

Cyclic performance of prefabricated composite shear stud connectors for accelerated bridge construction

Cyclic performance of prefabricated composite shear stud connectors for accelerated bridge construction

Shear-slip behaviour of prefabricated composite shear stud connectors in composite bridges

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