Investigation of Shear Strength and Behavior of SCC Beams With High Strength Stirrups

• Main Authors: Ying-Lun Hsieh, 謝熒倫
• Other Authors: Wen-Chen Jau
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/50741244421078882199

碩士 === 國立交通大學 === 土木工程系 === 90 === The purpose of this study is to investigate the shear behavior of self compacting concrete（SCC）and ordinary property cement（OPC）beams with high tensile steel ULBON under static load﹒A total of nineteen beams specimens were made in this study﹐fifteen were SCC beams and the rest were OPC ones﹒The parameters included two kinds of concrete﹐concrete strength﹐amount of shear reinforcement and shear span-to-depth ratio﹒Wishing to comprehend shear strength and ductility after using high tensile steel ULBON as shear reinforcement in SCC and OPC beams﹒The following conclusions can be made from the test results﹒ 1、The pattern of crack initiation and propagation for OPC and SCC beams are similar to each other﹒ 2、Cracking loads Vcr and ultimate strength Vu for SCC beams are 1.16 and 1.08 of the values calculated by ACI﹐which demonstrated the suitability of ACI equations for high strength stirrups﹒ 3、The reason that load capacity of beam does not drop significantly after peak is because of the high strength and ductility of Ulbon﹒ 4、The current ACI code requires that fy≦60 ksi could be suitable increase﹒ 5、At the same parameters﹐the results show the self compacting concrete beams have greater ultimate shear strength and ductility over than ordinary property cement ones﹒ Keyword：self compacting concrete、SCC、beam、high tensile steel、shear strength、ductility