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- W2741520816 abstract "2 ABSTRACT:VA combination of steel and concrete in structural members and components of load-bearing structures appears very efficient due to the advantageous properties of both materials complementing each other. It results in the design of highly reliable and cost-saving structures. Concrete-filled hollow steel sections are more and more frequently used as compression members in structures nowadays.The subject of this work is to investigate the effect of high volume replacement level of cement with fly ash on the strength of concrete filled steel tubular short columns. A theoretical investigation of this experimental results with Euro code is also conducted.Fly ash can be used as a replacement for cement or as an additional cementations material in concrete.Optimum percentage of fly ash were found out by conducting cube strength test on 21 specimens with different percentage replacement level of cement. Infilling the hollow section columns with M30 grade concrete, concrete with fly ash as a replacement for cement as a replacement for cement were studied.Totally 10 columns with 2 mm and 2.5 mm thick steel were tested and load versus elongation, axial stess- strain behaviour for each type of column was studied. The results show that concrete filled steel tubular columns with optimum percentage of fly ash have the highest compressive strength at age of 28 days than steel tubular column with normal M30 concrete. The failure mode for column infilled with M30 grade concrete was outward folding failure at bottom of the column and separation of steel and concrete at ultimate load due to bond failure between steel tube and concrete" @default.
- W2741520816 created "2017-08-08" @default.
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- W2741520816 date "2015-01-01" @default.
- W2741520816 modified "2023-09-24" @default.
- W2741520816 title "Behaviour of Cold Formed Steel Tubular Short Columns Infilled with High Volume Fly Ash" @default.
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