| Title |
Stiffness-Based Optimal Design of Tall Steel Braced Frame Structure for Dynamic Lateral Drift Control |
| Authors |
Kim Ho-Soo ; Lee Han-Joo ; Lee Sung-Soo |
| Keywords |
Tall Steel Braced Frame ; Lateral Drift Control ; Dynamic Displacement Sensitivity Analysis ; Stiffness-Based Optimal Design Technique |
| Abstract |
This study presents stiffness-based optimal design to control quantitatively lateral drift of tall steel braced frames subject to seismic loads. The lateral drift constraints considering the approximation concept and the relationships of sectional properties to reduce the number of design variables are introduced. Also, resizing technique of H-shaped steel section is developed during repetitious process. And, for the reasonable dynamic lateral drift control, the derivatives of stiffness and mass matrices are first established and also the dynamic displacement sensitivities considering the response spectrum analysis are formulated. Several tall steel braced frame models are considered to illustrate the features of dynamic stiffness-based optimal design technique under seismic lateral loads. |