Experimental Study of Perfobond Rib Shear Connector under Lateral Force

A series of full-scale pushed out tests were performed on the Perfobond rib shear connector. The tests were designed to examine the performance of the Perfobond rib shear connector under different rib hole sizes and shapes, reinforcing bar sizes, rib thicknesses, as well as the presence of lateral f...

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Bibliographic Details
Published in:Applied sciences 2021-10, Vol.11 (19), p.9088
Main Authors: Wang, Xuewei, He, Qiuxia, An, Zhiwen, Liu, Guojun, Wen, Xingke, Wang, Yongqiang, Zhong, Zhenxiao
Format: Article
Language:English
Subjects:
Bridges
Compression
Concrete
Connectors
Design
Ductility
experimental study
Hole size
Influence
lateral force
Metal fatigue
Perfobond rib shear connector
Perforated plates
push-out tests
Rebar
Shear
Stiffness
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Summary:A series of full-scale pushed out tests were performed on the Perfobond rib shear connector. The tests were designed to examine the performance of the Perfobond rib shear connector under different rib hole sizes and shapes, reinforcing bar sizes, rib thicknesses, as well as the presence of lateral forces. It has been revealed from the test results that the rib hole size and reinforcement diameter may not act independently, and the influence of one’s size is actually dependent on the size of the other one. The lateral forces also affect the performance of the shear connector; for example, the capacity of the shear connector would be larger under compression than under tension. The existence of transverse pretension stress accelerated the cracking of concrete, leading to the strength and stiffness of concrete, perforated plate, and reinforcing rebars unable to fully exert their effect. In addition, the constraint effect of transverse stress improved the strength and stiffness of concrete and delayed the concrete cracking, bringing the strength and stiffness of concrete, perforated plate, and reinforcing rebars into full play, and resulting in a significant improvement in the shear capacity of Perfobond rib shear connectors.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11199088