高強度材料による円形コンファインドコンクリートの強度・変形特性 : コンファインドコンクリートの強度・変形特性に関する研究 (その1)
1996 年 61 巻 483 号 p. 129-138
詳細
1996 年 61 巻 483 号 p. 129-138
Uniaxial compression tests of confined concrete consisting of concrete with strength ranging 30 to 120MPa, and spiral reinforcement with strength in the range of 400 to 1200MPa were conducted. The test results indicate that confined concrete composed of high strength materials inclines to show lower improvement of mechanical characteristics such as compressive strength because of non-yielding of lateral reinforcement due to small lateral strain of high strength concrete and large strain at yielding of high strength reinforcing bars. Equations for predicting extensively strength and deformation characteristics of spirally confined concrete are derived by modifying the previous equations for confined concrete with concrete and circular reinforcement having ordinary strength.
