Discrete computational shear strength models for 5-, 6-, and 11-circular-hoop and spiral transverse reinforcement

作者：Ou Yu Chen^*; Si Huy Ngo

来源：Advances in Structural Engineering, 2016, 19(1): 23-37.

DOI：10.1177/1369433215622876

• bridges
• circular hoop
• reinforced concrete columns
• shear strength
• spiral
• transverse reinforcement

Based on the actual, discrete locations of interception points between the critical shear crack and transverse reinforcement, this study developed the discrete computational shear strength models for 5-, 6-, and 11-circular-hoop and spiral reinforcement. Moreover, conventional simplified calculation method was revised for use for 5-, 6-, and 11-circular-hoop and spiral reinforcement. Examination of the difference between the discrete computational shear strength models and simplified calculation shows that the error of the simplified calculation increases with increasing ratios of spacing to diameter of circular hoops or spirals. Limiting values of spacing to diameter ratios were proposed to control the error of the simplification calculation to be equal to or less than 10%. Plots of modification factors were proposed to be used with the simplification calculation when the spacing to diameter ratio is large.

• 出版日期2016-1