期刊名称：Walailak Journal of Science and Technology (WJST)
印刷版ISSN：2228-835X
出版年度：2021
卷号：18
期号：12
页码：1-10
DOI：10.48048/wjst.2021.19825
语种：English
出版社：Institute of Research and Development, Walailak University.
摘要：New methods to provide shear strength on the cold-formed steel (CFS) lipped c-channel section composite beam encased with concrete partially is proposed using rebars embedded in concrete. The development of research on the CFS composite beams technology with partial encasement shows that the section of the composite beam encased with concrete partially can provide ductile flexural action for the composite beam. The application of profiled metal decking slabs in the composite beam is becoming increasingly popular compared to solid slabs. However, it has a detrimental effect on the structural behavior of a composite beam. This research is aimed primarily at presenting the behavior of the rebar shear connector to evaluated ductility, shear capacity, and modes of failure. Two samples using a rebar 12 mm in diameter in the profiled metal decking slabs and solid slabs were tested using the standard push-out test till failure. For the composite beam design, the proposed shear connector embedded in the slab concrete and the CFS encased with concrete partially used the test results’ shear capacity, greater thanthe values as proposed by section 3.1, BS 5950. Due to rebars shear-off, the solid slab specimenfailed with the highest load of 489.6 kN while the Profiled Metal Decking Slab specimenfailed due to the formation of the cracks on the PMDSat 421.1 KN ultimate loading.
