Experimental Research on the Shear Connectors in Foam Concrete with C‑Channel Embedment

In order to improve the longitudinal shear resistance between foam concrete and C-Channels, an investigation is carried out on the shear connectors in foam concrete with cold-formed steel double C-Channels embedment. Twenty-four tests have been carried out in two groups. Two types of connectors: fla...

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Bibliographic Details
Published in:International journal of concrete structures and materials 2018, 12(5), 42, pp.639-650
Main Authors: Liu, Dianzhong, Wang, Fayu, Fu, Feng
Format: Article
Language:English
Subjects:
bond-slip
Building Materials
C-Channel
Channels
Cold shearing
Cold-formed steel
Composite structures
Concrete
Connectors
Dismantling
Dynamic loads
Electronic components industry
Embedment
Engineering
Failure mechanisms
Flanges
foam concrete
Original Article
shear connector
Shear strength
Slippage
Solid Mechanics
Structural Materials
토목공학
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Summary:In order to improve the longitudinal shear resistance between foam concrete and C-Channels, an investigation is carried out on the shear connectors in foam concrete with cold-formed steel double C-Channels embedment. Twenty-four tests have been carried out in two groups. Two types of connectors: flange connectors and web connectors are installed using self-drilling screws for a rapid construction. The experimental results show that they can effectively improve the longitudinal shear-resist capacity of the concrete. After the experiment, the specimens are dismantled for an interior observation. Based on the observation, the form of damage, the failure mechanism was discovered, and the equation of longitudinal shear capacity was developed. It is concluded that the failure involves independent slippage between two C-Channels and the shear connection fractures. Since the composite structure requires sufficient slip between the two materials, these types of shear connectors will have good enhancement for this type of composite structures subjected to dynamic loads.
ISSN:1976-0485
2234-1315
DOI:10.1186/s40069-018-0281-4