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Seismic Demand Models And Performance Evaluation Of Self-Centering And Conventional Concentrically Braced Frames, Mojtaba Dyanati, Qindan Huang, David Roke
Seismic Demand Models And Performance Evaluation Of Self-Centering And Conventional Concentrically Braced Frames, Mojtaba Dyanati, Qindan Huang, David Roke
David Roke
Self-centering concentrically braced frame (SC-CBF) systems have been developed to increase the drift capacity of braced frame systems prior to damage. The SC-CBF has a column base detail that permits column uplift at a specified level of overturning moment resulting from lateral forces, softening the lateral force-lateral drift behavior of the system. Restoring forces from vertically-oriented posttensioning bars provides self-centering and reduces residual drift in the SC-CBF. To demonstrate the effectiveness of SC-CBF systems, a comparative study of seismic performance of SC-CBF systems with that of conventional CBF systems is performed using seismic fragility and engineering demand (e.g., peak inter-story …
Seismic Demand Models And Performance Evaluation Of Self-Centering And Conventional Concentrically Braced Frames, Mojtaba Dyanati, Qindan Huang, David Roke
Seismic Demand Models And Performance Evaluation Of Self-Centering And Conventional Concentrically Braced Frames, Mojtaba Dyanati, Qindan Huang, David Roke
Qindan Huang
Self-centering concentrically braced frame (SC-CBF) systems have been developed to increase the drift capacity of braced frame systems prior to damage. The SC-CBF has a column base detail that permits column uplift at a specified level of overturning moment resulting from lateral forces, softening the lateral force-lateral drift behavior of the system. Restoring forces from vertically-oriented posttensioning bars provides self-centering and reduces residual drift in the SC-CBF. To demonstrate the effectiveness of SC-CBF systems, a comparative study of seismic performance of SC-CBF systems with that of conventional CBF systems is performed using seismic fragility and engineering demand (e.g., peak inter-story …