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Title |
Flexural Performance and Cracking Resistance of Continuous Composite Slab using Micro Steel Fibers
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Authors |
황현종(Hyeon-Jong Hwang) ; 박홍근(Hong-Gun Park) ; 홍건호(Geon-Ho Hong) ; 김갑득(Gap-Deug Kim) ; 최세진(Se-Jin Choi) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.4.387 |
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Keywords |
연속 슬래브 ; 데크 플레이트 ; 마이크로 강섬유 ; 균열 continuous slab ; deck plate ; micro steel fiber ; cracking |
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Abstract |
In the present study, to enhance the constructability, a composite slab system using deck plate and micro steel fiber concrete was studied. In the proposed slab system, on-situ re-bar placement is not required. Steel fibers replace the temperature reinforcement. The present study focused on the crack control at the slab top in the continuous composite slab without spliced bars. Eight continuous slabs with various parameters were tested under vertical loading. The test parameters were the amount and types of micro steel fibers, types of deck plate, and the use of top bars in the continuous slab. To evaluate the crack resistance of the slabs, crack widths were measured in the continuous slabs. The test results showed that although the top spliced bars were not used, cracking were restrained by large flexural stiffness of the composite sections.
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