Shear Behavior of Low cement High-Performance Concrete Beams Without Stirrups

• Main Authors: Liu, Ts''ang Hao, 劉倉豪
• Other Authors: Yen Ts''ung, Huang Yu Lin
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/03513843958235526845

碩士 === 國立中興大學 === 土木工程學系 === 86 === The purpose of the study is to investigate the shear behavior of high performance concrete (HPC) beam and the low cement high performance concrete (LcHPC) beam with a cement content of 250 kg/cm3. Fourteen full scale specimens without stirrups were made for testing. The considered parameters include the shear-span to effective depth ratio (a/d), the percentage of longitudinal steel content (ρ) and the different amount of cement. The results show that the shear strength at cracking increase as a/d decrease and as ρ increase for both HPC beams and LcHPC beams. It happens to the shear strength at failure, too. And there is no obvious differences of shear behavior between HPC beams and LcHPC beams when a/d equals to 3.0. When the a/d equals to 1.5, LcHPC beams will have larger shear strength than that of HPC beams at failure. Moreover, the LcHPC beams also show better crack control than the HPC beams.