Assessment of Remaining Seismic Capacity for Reinforced Concrete Piers Based on a Residual Drift Response: Static Analysis

ABSTRACT

To investigate the correlationf between residual drift and remaining seismic capacity, 24 reinforced concrete pier specimens were subjected to lateral load reversals. By normalizing the specified drift against the value at specimen failure, the normalized residual drift exhibits a strong correlation with the normalized lateral drift, thereby providing a predictive model for residual drift. After determining the remaining seismic capacity derived from energy dissipation, a linear correlation was established between the normalized residual drift and the remaining seismic capacity. Consequently, normalized residual drift was selected as a performance indicator for seismic assessment, enabling the quantitative determination of structural damage states.

KEYWORDS:

• Seismic assessment
• reinforced concrete pier
• residual drift
• remaining seismic capacity
• performance indicator
• damage state

Acknowledgments

The authors acknowledge the National Natural Science Foundation of China under Grant No. 52178126 for sponsoring this project. The memberships of research group in HIT, Huatao Wang, Feihu Sun, and Zhipeng Xu, are appreciated for their efforts in fulfilling experimental testing.

Disclosure Statement

No potential conflict of interest was reported by the author(s).

Data Availability Statement

Data available on request from the authors.

Additional information

Funding

The work was supported by the National Natural Science Foundation of China [52178126].