@article{(Open Science Index):https://publications.waset.org/pdf/14272, title = {The Effect of Frame Geometry on the Seismic Response of Self-Centering Concentrically- Braced Frames}, author = {David A. Roke and M. R. Hasan}, country = {}, institution = {}, abstract = {Conventional concentrically-braced frame (CBF) systems have limited drift capacity before brace buckling and related damage leads to deterioration in strength and stiffness. Self-centering concentrically-braced frame (SC-CBF) systems have been developed to increase drift capacity prior to initiation of damage and minimize residual drift. SC-CBFs differ from conventional CBFs in that the SC-CBF columns are designed to uplift from the foundation at a specified level of lateral loading, initiating a rigid-body rotation (rocking) of the frame. Vertically-aligned post-tensioning bars resist uplift and provide a restoring force to return the SC-CBF columns to the foundation (self-centering the system). This paper presents a parametric study of different prototype buildings using SC-CBFs. The bay widths of the SC-CBFs have been varied in these buildings to study different geometries. Nonlinear numerical analyses of the different SC-CBFs are presented to illustrate the effect of frame geometry on the behavior and dynamic response of the SC-CBF system.}, journal = {International Journal of Civil and Environmental Engineering}, volume = {6}, number = {2}, year = {2012}, pages = {83 - 88}, ee = {https://publications.waset.org/pdf/14272}, url = {https://publications.waset.org/vol/62}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 62, 2012}, }