This page has only limited features, please log in for full access.
The seismic performance of ordinary reinforced concrete shear walls, that are commonly used in high-rise residential buildings in Korea (h < 60 m), but are prohibited for tall buildings (h ≥ 60 m), is evaluated in this research project within the framework of collapse probability. Three bidimensional analytical models comprised of both coupled and uncoupled shear walls exceeding 60 m in height were designed using nonlinear dynamic analysis in accordance with Korean performance-based seismic design guidelines. Seismic design based on nonlinear dynamic analysis was performed using different shear force amplification factors in order to determine an appropriate factor. Then, an incremental dynamic analysis was performed to evaluate collapse fragility in accordance with the (Federal Emergency Management Agency) FEMA P695 procedure. Four engineering demand parameters including inter-story drift, plastic hinge rotation angle, concrete compressive strain and shear force were introduced to investigate the collapse probability of the designed analytical models. For all analytical models, flexural failure was the primary failure mode but shear force amplification factors played an important role in order to meet the requirement on collapse probability. High-rise ordinary reinforced concrete shear walls designed using seven pairs of ground motion components and a shear force amplification factor ≥ 1.2 were adequate to satisfy the criteria on collapse probability and the collapse margin ratio prescribed in FEMA P695.
Seong-Ha Jeon; Ji-Hun Park. Seismic Fragility of Ordinary Reinforced Concrete Shear Walls with Coupling Beams Designed Using a Performance-Based Procedure. Applied Sciences 2020, 10, 1 .
AMA StyleSeong-Ha Jeon, Ji-Hun Park. Seismic Fragility of Ordinary Reinforced Concrete Shear Walls with Coupling Beams Designed Using a Performance-Based Procedure. Applied Sciences. 2020; 10 (12):1.
Chicago/Turabian StyleSeong-Ha Jeon; Ji-Hun Park. 2020. "Seismic Fragility of Ordinary Reinforced Concrete Shear Walls with Coupling Beams Designed Using a Performance-Based Procedure." Applied Sciences 10, no. 12: 1.
An efficient design procedure for building structures with damping systems is proposed using nonlinear response history analysis permitted in the revised Korean building code, KBC 2016. The goal of the proposed procedure is to design structures with damping systems complying with design requirements of KBC 2016 that do not specify a detailed design method. The proposed design procedure utilizes response reduction factor obtained by a limited number of nonlinear response history analyses of the seismic-force-resisting system with incremental damping ratio substituting damping devices. Design parameters of damping device are determined taking into account structural period change due to stiffness added by damping devices. Two design examples for three-story and six-story steel moment frames with metallic yielding dampers and viscoelastic dampers, respectively, shows that the proposed design procedure can produce design results complying with KBC 2016 without time-consuming iterative computation, predict seismic response accurately, and save structural material effectively.
Seong-Ha Jeon; Ji-Hun Park; Tae-Woong Ha. Seismic Design of Steel Moment-Resisting Frames with Damping Systems in Accordance with KBC 2016. Applied Sciences 2019, 9, 2317 .
AMA StyleSeong-Ha Jeon, Ji-Hun Park, Tae-Woong Ha. Seismic Design of Steel Moment-Resisting Frames with Damping Systems in Accordance with KBC 2016. Applied Sciences. 2019; 9 (11):2317.
Chicago/Turabian StyleSeong-Ha Jeon; Ji-Hun Park; Tae-Woong Ha. 2019. "Seismic Design of Steel Moment-Resisting Frames with Damping Systems in Accordance with KBC 2016." Applied Sciences 9, no. 11: 2317.