Seismic Performance of Precast Concrete Columns with Improved U-type Reinforcement Ferrule Connections

Zhiwu Yu; Xiaoyong Lv; Yujie Yu; Faxing Ding; Xiaodan Peng

추천

검색

질문

자료유형: 학술저널

저자정보: Zhiwu Yu (Central South University) Xiaoyong Lv (Central South University) Yujie Yu (Central South University) Faxing Ding (Central South University) Xiaodan Peng (Central South University)

저널정보: 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.13 No.7

발행연도: 2019.11

수록면: 921 - 938 (18page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

This paper proposes a new kind of U-type reinforcement ferrule (URF) connection for the assembly of precast concrete (PC) components, which has a good fault-tolerance ability and low cost of construction with a simple postgrouting process. The modified connection features welded U ferrules, which can increase the bonding mechanism and internal stress transmission in the spliced region. A series of quasi-static cyclic tests were performed on URF-connected PC columns with different welding patterns. Comprehensive comparisons were performed on the load-bearing capacity, the plastic energy dissipation ability, the internal force transmission, the column ductility and the stiffness. The results indicated that PC columns with welded URF connections can ensure better lateral resistance than the cast-in-place concrete column. The weld type and length influence the connection performance, and the 15d-welded and full-length welded URF connections presented better connection performance and were suggested for the assembly of PC columns. Then, finite element analyses were performed to further reveal the working and failure mechanisms and the affecting mechanism of some working parameters. Parametric simulations indicated that the increase in the axial load ratio and the concrete strength in the postcast region had a slight but limited effect on improving the lateral resistance of the column connection.

#U-type longitudinal reinforcement ferrule connections #prefabricated concrete column #lateral resistance #seismic behavior #finite element analysis

참고문헌 (26)

참고문헌 신청

Belleri, A., & Riva, P. (2012). Seismic performance and retrofit of precast concrete grouted sleeve connections. PCI Journal, 57, 97?109.

Choi, H.-K., Choi, Y.-C., & Choi, C.-S. (2013). Development and testing of precast concrete beam-to-column connections. Engineering Structures, 56, 1820?1835.

Ding, F.-X., Yin, G.-A., Wang, L.-P., Hu, D., & Chen, G.-Q. (2017). Seismic performance of a non-through-core concrete between concrete-filled steel tubular columns and reinforced concrete beams. Thin-Walled Structures, 110, 14?26.

Ding, F., Ying, X., Zhou, L., & Yu, Z. (2011). Unified calculation method and its application in determining the uniaxial mechanical properties of concrete. Frontiers of Architecture and Civil Engineering in China., 5(3), 381.

Elliott, K. S. (2016). Precast concrete structures. Boca Raton: CRC Press.

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!