Strengthening of Reinforced Concrete Slabs using Cold Formed Steel
Alamsyah (a), Indriyani Puluhulawa (b)
a) Politeknik Negeri Bengkalis, Riau, Indonesia 28714
alamsyah[at]polbeng.ac.id
b) Politeknik Negeri Bengkalis, Riau, Indonesia 28714
indriyani_p[at]polbeng.ac.id
Abstract
Low quality control in concrete work often causes a decrease in the quality of compressive strength. The effect of that, the function of the structure was not achieved as planned. There have been many studies aimed at increasing the strength of structures using CFRP, GFRP, Steel plates, steel wires, etc. This paper presents the results of the behavior of concrete slabs with cold formed steel as strengthening. Cold formed steel that easily obtained, has a high tensile strength and low prices was the ideal option for strengthening materials, particularly in flexural structures. The specimen test that has been made was the normal concrete slab (NS) and concrete slab with additional channel shape cold formed steel (SS). The test results showed an increase in stiffness and peak load on the SS specimen. On the other hand, there was no significant difference load when the first crack on the SS or NS specimens. The crack pattern that occurs in NS and SS was not much different and was still a flexural crack categories, and this was as expected that the addition of cold formed steel area considering the slab structure will not shear failure.
Keywords: Channel shape; cold formed steel; flexural strength; strengthening
Topic: International Symposium of Civil, Environmental, and Infrastructure Engineering