Post-peak behaviour of composite column using a ductile lightweight aggregate concrete

Hamidian, Mohammad Reza and Shafigh, Payam (2021) Post-peak behaviour of composite column using a ductile lightweight aggregate concrete. International Journal of Concrete Structures and Materials, 15 (1). ISSN 1976-0485, DOI

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Oil palm shell (OPS) concrete filled steel tube (CFT) columns are acknowledged to be a new type of sustainable composite column. In this type of column, the conventional coarse aggregate was partially replaced with OPS lightweight aggregate to provide a green composite column. This type of CFT column showed higher energy absorption and flexibility compared to CFT columns with normal weight concrete. This research studied the effect of the strength of OPS concrete on the axial compressive behaviour of CFT columns for two grades of OPS concretes. The behaviour was comparable to that of CFT columns with two grades of normal concrete. The results showed that the CFT columns with OPS concrete achieved a new post-peak behaviour. The experimental results of the axial compressive load were compared with the estimation of two international standards. EC4-1994 and ACI318-14 showed a reliable and conservative estimation of the axial load capacity of CFT columns, respectively.

Item Type: Article
Uncontrolled Keywords: Composite column; Post-peck behaviour; Ductile lightweight aggregate; CFT column; Oil palm shell lightweight concrete; Agricultural waste material
Subjects: N Fine Arts > NA Architecture
Divisions: Faculty of the Built Environment > Department of Architecture
Depositing User: Ms Zaharah Ramly
Date Deposited: 09 Jun 2022 07:51
Last Modified: 09 Jun 2022 07:51

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