Document Type

Article

Journal/Book Title/Conference

13th National Conference on Earthquake Engineering, Portland, OR

Publisher

Earthquake Engineering Research Institute

Location

Portland, OR

Publication Date

3-4-2026

Journal Article Version

Version of Record

First Page

1

Last Page

5

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Abstract

This study examines the seismic response of reinforced concrete (RC) bridge piers subjected to ground motion (GM) records from the 2023 Kahramanmaraş earthquake by comparing the impact of pulse-like versus no-pulse records. A suite of 300 nonlinear Bouc-Wen hysteretic models was developed to represent piers with varying nonlinear behavior. Each Bouc-Wen model was assessed under 24 pulse-like and 28 no-pulse GMs, resulting in 15,600 nonlinear time-history simulations. Subsequently, the relationship between Bouc-Wen parameters (i.e., period and yield displacement) and seismic responses (i.e., maximum displacement, residual displacement, and maximum acceleration) was analyzed. The results show that pulse-like records produce 5 times higher maximum and residual displacement demands in Bouc-Wen models, with the largest increase occurring in models with periods larger than 0.4 s and yield displacements lower than 0.05 m. In contrast, no-pulse GMs generated higher maximum displacement demands across a broader period range, where the highest residual displacement demands occur in the long-period range. In addition, irrespective of record types, maximum acceleration demands were obtained for short-period Bouc-Wen models (less than 0.4 s) with a yield displacement higher than 0.05 m.

Comments

This article will be rereleased by EERI in July 2026 as part of the full conference proceedings. Published with permission.

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