Inelastic cyclic response of circular corroded concrete bridge piers

Kashani, Mehdi (2024) Inelastic cyclic response of circular corroded concrete bridge piers. 18th World Conference on Earthquake Engineering (WCEE2024), , Milan, Italy. 30 Jun - 05 Jul 2024. 9 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper provides a summary of previous experimental tests on corrosion damage circular concrete bridge piers subject to lateral cycling loading. In addition, the experimental results of a recent experimental testing were conducted on corroded circular concrete bridge piers with pitting corrosion are also presented. In this research, a set of experimental tests on three reinforced concrete (RC) columns subjected to lateral cyclic loading. The columns varied in terms of corrosion presence and different reinforcement configurations. One column was meticulously reinforced to emulate modern RC bridge piers designed per current seismic codes. The second column, identical in design but affected by corrosion, represented damaged structures. The third column, minimally reinforced and corroded, simulated aging RC bridge piers not complying with contemporary seismic codes. The study revealed that corrosion significantly reduced ductility in the tested columns, surpassing the impact on their strength. Surprisingly, even the uncorroded column, designed according to current seismic codes, exhibited severe inelastic buckling of its vertical bars during cyclic tests.

Text

INELASTIC CYCLIC RESPONSE OF CIRCULAR CORRODED CONCRETE BRIDGE PIERS - Accepted Manuscript

Available under License University of Southampton Accepted Manuscript Licence.

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