Performance of Externally Steel Angle-Collared Concrete Columns Under Axial Compressive Load

Tavio, and Pudjisuryadi, Pamuda and Honestyo, Aoron (2025) Performance of Externally Steel Angle-Collared Concrete Columns Under Axial Compressive Load. [UNSPECIFIED]

	PDF Download (1286Kb)
	PDF Download (5Mb)

Abstract

Deficient Reinforced Concrete (RC) columns and higher demands of new codes are the main reasons for retrofit works for RC columns. One of the deficiencies involves the lack of confining elements which leads to poor ductility. Confining stress conventionally provided by transverse reinforcement has been recognized to enhance the strength and ductility of RC columns. Nowadays, the confinement method has been further developed to be applied externally which is more suitable for retrofit works. In square or rectangular columns, providing effective confining stress is not as simple as that of circular columns. In this research, displacement controlled compressive test on a set of square RC columns retrofitted by steel angle collars is presented. The volumetric ratio of the confining elements is the main parameter to investigate the effectiveness of the retrofitting technique. Enhancement of axial strength and ductility are observed as the confining element volumetric ratio increases.

Actions (login required)