Development and Seismic Behavior of Precast Concrete Beam-to-Column Connections |
| |
| Authors: | Dongzhi Guan Cheng Jiang Hanbin Ge |
| |
| Affiliation: | 1. School of Civil Engineering, Southeast University, Nanjing, China;2. Key Laboratory of Concrete and Pre-Stressed Concrete Structures of the Ministry of Education, Nanjing, China;3. Department of Civil Engineering, Meijo University, Nagoya, Japan;4. Department of Civil and Architectural Engineering, City University of Hong Kong, Hong Kong SAR, China;5. Department of Civil Engineering, Meijo University, Nagoya, Japan |
| |
| Abstract: | A new precast concrete beam-to-column connection for moment-resisting frames was developed in this study. Both longitudinal bar anchoring and lap splicing were used to achieve beam reinforcement continuity. Three full-scale beam-to-column connections, including a reference monolithic specimen, were investigated under reversal cyclic loading. The difference between the two precast specimens was the consideration of additional lap-splicing bars in the calculation of moment-resisting strength. Seismic performance was evaluated based on hysteretic behavior, strength, ductility, stiffness, and energy dissipation. The plastic hinge length of the specimens is also discussed. The results show that the proposed precast system performs satisfactorily under reversal cyclic loading compared with the monolithic specimen, and the additional lap-splicing bars can be included in the strength calculation using the plane cross-section assumption. Furthermore, the plastic hinge length of the proposed precast beam-to-column connection can be estimated using the models for monolithic specimens. |
| |
| Keywords: | Precast Concrete Beam-to-Column Connection Cyclic Loading Seismic Performance Plastic Hinge Length |
|
|
