Title Improvement and Evaluation of Seismic Performance of Reinforced High-Strength Concrete Beam-Column Joints with Advanced Reinforcing Detailings
Authors Ha Gee-Joo
Page pp.21-28
ISSN 12269107
Keywords Reinforced High-strength Concrete Beam-Cloumn Joint ; Advanced Reinforcing Detailings ; Beam Plastic Hinge ; Seismic Performance ; Improvement
Abstract In this dissertation, experimental research was carried out to study the hysteretic behavior of reinforced high-strength concrete beam-column joints designed by high performance techniques, such as application of high-strength concrete, reducing of joint regions damage, moving of beam plastic hinge, and advanced reinforcing detailings. Specimens(HJAI1, HJAI2, HJCI), designed by the development of earthquake-resistant performance, moving of beam plastic hinge, and new design approach, were attained the moving of beam plastic hinge and developed significantly earthquake-resistant performance of such joints. Especially, specimen HJCI, designed by the supplemental intermediate longitudinal reinforcement and the closed stirrup of confinement of concrete in beam near the joint was evaluated very excellent new design details of reinforced beam-column joints. Specimens(HJAI1, HJAI2, HJCI), designed by moving of beam plastic hinge and improvment of structural performance were sufficiently moved away 20㎝, 30㎝ from the column face respectively due to adding supplemental intermediate longitudinal reinforcement over a specific length 1.0d and 1.5d and application of closed stirrup.