| Title |
The Lateral Behavior of a Core Outrigger System without an Upper Shear Wall |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.7.217 |
| Keywords |
Core Outrigger System; Upper Shear Wall; Lateral Behavior; Shear Force |
| Abstract |
This study aims to comprehensively understand the lateral behavior of a core outrigger system without shear walls. To achieve this objective,
structural analysis and design of a 60-story building were conducted using the MIDAS-Gen program. The key variables investigated include
the ratio of shear wall height to the overall building height and the stiffness of the outrigger system. Based on the analysis results, various
aspects of the lateral behavior were examined. These included the distribution of shear forces and overturning moments transmitted from the
shear wall, the lateral displacement distribution of the top story, and the distribution of axial forces from exterior columns transferred at the
height where the outrigger is installed. Through this research, it was observed that the ratio of shear wall height to the overall building
height and the stiffness of the outrigger system had a significant impact on the lateral behavior of the core outrigger system in high-rise
buildings. The findings of this study can provide valuable insights for the proper design of high-rise outrigger systems in the absence of
shear walls, serving as a foundation for securing essential data in structural design. |