Component Seismic Damage Model for SRHSHPC Joints
The deficiency of present damage model is generalized by studying existing references. The mechanical properties of steel reinforced high strength and high performance concrete (SRHSHPC) members under monotonic loading, including the capacity of ultimate deformation, strength, stiffness, etc. are analyzed after the different number of cycles. The reduction factor is introduced, the dynamic variation relationship of ultimate deformation with the number of cycles is obtained, and the merits of existing damage model are utilized, finally the seismic damage model, which is suitable for SRHSHPC beam-column joints, is established. In order to verify the rationality of damage model, Opensees as a nonlinear analysis program is adopted to simulate SRHSHPC joints, the comparison of the numerical analysis results with experimental results shows that the proposed damage model can capture the behaviors of joints very well. The model can, therefore, be used to carry out seismic damage analysis of other SRHSHPC members.
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
S. S. Zheng et al., "Component Seismic Damage Model for SRHSHPC Joints", Key Engineering Materials, Vols. 417-418, pp. 705-708, 2010