| Title |
Lateral Drift Control of 3-D Tall Steel Structures Using Displacement Sensitivity Analysis |
| Keywords |
Displacement Sensitivity Analysis ; Approximation Concept ; Lateral Drift Control ; 3-D Steel Structures |
| Abstract |
This study presents an effective stiffness-based optimal technique to control quantitatively lateral drift for 3-D steel frameworks subject to lateral loads. To this end, the displacement sensitivity depending on behavior characteristics of 3-D steel frameworks is established. Also, the approximation concept that can preserve the generality of the mathematical programming and can efficiently solve large scale problems is introduced. Resizing sections in the stiffness-based optimal design are assumed to be uniformly varying in size and the technique of member grouping is considered for the improvement of construction efficiency. Two types of 30-story frames are presented to illustrate the features of the quantitative lateral drift control technique proposed in this study. |