2023 Volume 29 Issue 73 Pages 1332-1337
NC braced frames proposed by the authors are a new structural system that can be reduced seismic responses based on an elastic strain energy accumulation. Although the energy accumulation yields a non-linear elastic hysteresis, this hysteresis rule has not been formulated. This report first describes a non-linear elastic behavior of single-story NC braced frames, and then presents a 1DOF reduced model incorporating the hysteresis rules. Time history analyses of the 1DOF and frame models were carried out to verify the response reproducibility. As a result of the comparison, the 1DOF model reproduced the responses of the frame model.
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