Abstract
ABSTRACT This paper presents a performance-based seismic design method of RC moment resisting frame with friction damped self-centering tension braces (FSTB-Frame). The structural configuration and theoretical model of FSTB is introduced, and the numerical model of FSTB is established and validated through cyclic loading tests of a FSTB specimen. Based on the equivalent linear method, the seismic design procedure is developed and verified through 3-, 6-, 9-, and 12-story structures with different design performance objectives. Numerical models of FSTB-frames are established and used to verify whether the design performance targets are achieved through nonlinear dynamic analyses using the design-basis earthquake (DBE) ground motions. The research results show FSTB-frames can achieve the intended performance levels in terms of story drift, residual story drift and base shear, and the maximum and residual story drift of RC frames can be significantly decreased after equipping FSTBs.
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