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FLEXURAL PERFORMANCE OF COLD-FORMED THIN-WALLED STEEL-PAPER STRAW BOARD COMPOSITE SLAB
A new type of composite slabwas proposed by connecting paper straw board and cold-formed thin-walled steel with self-tapping screws. In order to investigatethe failure process and failure mode of the composite slab, the tests on the flexural capacity of three composite slabs with different factors such as steel beam section size, beam spacing and the number of screws were carried out. The strain of the cold-formed thin-walled C-shaped steeland the paper straw board, and the deflection of the composite slabwere observed, respectively. Moreover, the flexural behaviour and the composite actionof the composite slab were investigated and the flexural capacity of the composite slab was obtained. It was found that the final failure mode of composite slab wasthe local buckling modeof cold-formed thin-walled C-shaped steel beam due to the adequate restraint of the straw board, and the reducing of the screw spacing had beneficial influence on the flexural yield capacity. The calculation method of midspan deflection and flexuralcapacity of composite slab were proposed, and the calculated values of deflection and flexural capacity agreed well with the test results. Therefore, the new composite slabs were of good working performance and high flexural capacity.
FLEXURAL PERFORMANCE OF COLD-FORMED THIN-WALLED STEEL-PAPER STRAW BOARD COMPOSITE SLAB
A new type of composite slabwas proposed by connecting paper straw board and cold-formed thin-walled steel with self-tapping screws. In order to investigatethe failure process and failure mode of the composite slab, the tests on the flexural capacity of three composite slabs with different factors such as steel beam section size, beam spacing and the number of screws were carried out. The strain of the cold-formed thin-walled C-shaped steeland the paper straw board, and the deflection of the composite slabwere observed, respectively. Moreover, the flexural behaviour and the composite actionof the composite slab were investigated and the flexural capacity of the composite slab was obtained. It was found that the final failure mode of composite slab wasthe local buckling modeof cold-formed thin-walled C-shaped steel beam due to the adequate restraint of the straw board, and the reducing of the screw spacing had beneficial influence on the flexural yield capacity. The calculation method of midspan deflection and flexuralcapacity of composite slab were proposed, and the calculated values of deflection and flexural capacity agreed well with the test results. Therefore, the new composite slabs were of good working performance and high flexural capacity.
FLEXURAL PERFORMANCE OF COLD-FORMED THIN-WALLED STEEL-PAPER STRAW BOARD COMPOSITE SLAB
Xiuhua Zhang (author) / Zilin Zhao (author) / Xiang Li (author)
2020
Article (Journal)
Electronic Resource
Unknown
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