- Author
-
Ilki, A.
|
Ozdemir, P.
|
Fukuta, T.
- Title
- Confinement Effect of Reinforced Concrete Columns With Circular Cross-Section.
- Coporate
- Building Research Inst., Tokyo, Japan
- Report
-
BRI Research Paper 143
July 1997
79 p.
- Keywords
-
reinforced concretes
|
concrete columns
|
structural members
|
failure
|
stress (mechanics)
|
earthquakes
- Identifiers
- circular hoops or spirals; confinement reinforcement
- Abstract
- This paper deals with the complete stress-strain behavior of confined concrete. It is well known that, by confining the concrete with lateral reinforcement, significant strength enhancement and more ductile behavior can be obtained, so that it is possible to offset the strength loss due to spalling of concrete cover and to increase the capacity of concrete to sustain large deformations without a dramatic loss in strength. Besides these are well known, the effects of several variables which determine the behavior of the confined concrete still need further research. The strength enhancement and especially more ductile behavior due to confinement are vitally important for reinforced concrete building columns, especially for the earthquake resistant structures since the inelastic deformability of reinforced cocnretecolumns is essential for overall strength and stability of structures during a strong earthquake. The main purpose of this paper is to present the experimental data on complete stress-strain curves of reinforced concrete columns of circular cross-section, confined by circular hoops or spirals and to investigate the failure types of the columns which have different confinement reinforcement.