| Title |
Design of Lateral Load Resisting System Using Nonlinear Static Analysis |
| Authors |
Kim Gun-Woo ; Song Jin-Kyu ; Choi Jung-Wook |
| Keywords |
Lateral Resisting System ; Available Full Capacity ; Minimum Required Capacity ; Nonlinear Static Analysis |
| Abstract |
The design practice of the lateral resisting system has been traditionally dependent on the experience and know-how of a structural engineer. And the method to reflect the evaluation results of building's capacity on design process doesn't exist. The proposal of a rational design of the lateral load resisting system is based on the available full capacity(Rac) of a building and the minimum required capacity(Rcode) suggested in the code. This study suggests that nonlinear static analysis, which is the estimation of the lateral capacity with the pushover analysis, be included in the existing design procedure of the structure. After finishing the basic structural design, the lateral resisting capacity of a building is estimated. At the phase of nonlinear static analysis, pushover analysis is performed to define the fully yielded baseshear (Vy). When the design wind baseshear (Vwind) is bigger than the design seismic baseshear (Vd), the value is checked to determine whether or not it is smaller than the Vy. After confirming that it is smaller, the Rac of the structure is computed. If the Vdis bigger at first, only the Rac is computed. When the value of the estimation shows remarkable differences with the Rcode, repetition of the design modification is needed for those approximate to the Rcode. Application of the proposed design procedure to 2-D steel braced RC buildings has proven to be efficient. |