Seismic Fragility Analysis of Existing RC Frame Structures Strengthened with the External Self-Centering Substructure
Weiheng Liu,
Jianwei Zhang,
Hang Liu
et al.
Abstract:Based on a practical engineering case of seismic strengthening, this paper used the enlarging cross-section method and an external self-centering substructure to improve the seismic performance and seismic resilience of existing frame structures. Among them, the external self-centering substructure included setting a self-centering precast beam and diagonal braces. Utilizing the OpenSees finite element platform, a seismic fragility analysis was carried out to compare the improvements in seismic performance and… Show more
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