| Title |
Optimal Placement of Outrigger Systems With Consideration of Cap Truss Stiffness |
| DOI |
https://doi.org/10.5659/JAIK.2025.41.7.233 |
| Keywords |
Cap Truss; Stiffness; Outrigger System; Optimal Location |
| Abstract |
This study aims to determine the optimal location of an outrigger system by considering the stiffness of a cap truss installed on the top
floors of a tall building. To achieve this, a schematic structural design of a 60-story building was developed, using key analysis parameters
such as the stiffness ratio between the cap truss and the outrigger, frame stiffness, outrigger system stiffness, shear wall stiffness, and
outrigger position. Based on the structural analysis results, the effects of these parameters on the optimal outrigger location were evaluated,
particularly in cases where the stiffness of the cap truss and the outrigger differed. An optimal outrigger position was proposed that reflects
the influence of cap truss stiffness when the cap truss is located on the top floors. The proposed equation enhances existing methods for
predicting the optimal outrigger position by incorporating the stiffness ratio between the cap truss and the outrigger. |