In this study high strength concrete with a specific compressive control cube strength at 28daysrnof age fcu=50MPa, and normal-strength concrete with a specific compressive control cubernstrength at 28 days of age fcu=41MPa are considered to study the confined property of highstrengthrnand normal-strength concrete under axial compression load. Material used for highstrengthrnconcrete are; OPC Derba cement, basaltic coarse aggregate, crushed sand, water, andrnconplast SP430 chemical admixture. And material used for normal-strength concrete are; OPCrnDerba cement, crushed sand, river sand, basaltic coarse aggregate and water. The mix design forrnhigh-strength concrete was designed to obtain fcu=60Mpa, but from the test result it is obtainedrnfcu=50MPa, and this compressive strength of concrete is considered to study the behavior ofrnhigh-strength concrete in this research. Deformed reinforcing bar diameter 8mm with yieldrnstrength about 503MPa and 580Mpa were used to confine the specimen. The reinforcedrnspecimens contained rectilinear lateral steel ties, and four diameter 10mm longitudinalrnreinforcement with yield strength about 628MPa was used in the tested specimens.rnTest can be performed on 18 prismatic high-strength concrete specimens and 18 prismaticrnnormal-strength concrete specimens having a size of (150mmï‚´150mmï‚´300mm) with three steelrntie spacing (s=54mm,68mm,90mm). The test specimen include 6 plain unreinforced prismaticrnspecimens; 3 for high strength and 3 for normal strength concrete. Specimens were tested byrncompression testing machine having a capacity of 3000KN subjected to generalized compressionrnload with rate of loading 0.28MPa/s.rnThe test parameters considered in this study are; concrete compressive strength, volumetric ratiornand spacing of transverse reinforcement and yield strength of transverse reinforcement. Thernmodels proposed by previous researchers were used in addition to the test result to study therneffect of test parameters. Finally the influence of confinement and concrete compressivernstrength on the behavior of high-strength and normal-strength concrete specimens confined byrnrectilinear steel tie bars were examined. From the result obtained in the study the effect ofrnvolumetric ratio and spacing of transverse reinforcement has more pronounced effect on thernbehavior of normal and high-strength column specimens as compared to the other testrnparameters, which is agreed with the result of previous researchers.