Development of a Skewed Pipe Shear Connector for Precast Concrete Structures
AbstractJoint connection methods, such as shear key and loop bar, improve the structural performance of precast concrete structures; consequently, there is usually decreased workability or constructional efficiency. This paper proposes a high-efficiency skewed pipe shear connector. To resist shear and pull-out forces, the proposed connectors are placed diagonally between precast concrete segments and a cast-in-place concrete joint part on a girder. Design variables (such as the pipe diameter, length, and insertion angle) have been examined to investigate the connection performance of the proposed connector. The results of our testing indicate that the skewed pipe shear connectors have 50% higher ductility and a 15% higher ratio of maximum load to yield strength as compared to the corresponding parameters of the loop bar. Finite element analysis was used for validation. The resulting validation indicates that, compared to the loop bar, the skewed pipe shear connector has a higher ultimate shear and pull-out resistance. These results indicate that the skewed pipe shear connector demonstrates more idealized behavior than the loop bar in precast concrete structures. View Full-Text
Share & Cite This Article
Kim, S.-H.; Choi, J.-G.; Park, S.; Lee, H.; Heo, A.-H. Development of a Skewed Pipe Shear Connector for Precast Concrete Structures. Materials 2017, 10, 531.
Kim S-H, Choi J-G, Park S, Lee H, Heo A-H. Development of a Skewed Pipe Shear Connector for Precast Concrete Structures. Materials. 2017; 10(5):531.Chicago/Turabian Style
Kim, Sang-Hyo; Choi, Jae-Gu; Park, Sejun; Lee, Hyunmin; Heo, and Won-Ho. 2017. "Development of a Skewed Pipe Shear Connector for Precast Concrete Structures." Materials 10, no. 5: 531.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.