Corrosion Rate-Based Adjustment of Plastic Hinge Parameters of Corroded RC Elements

Öz

In line with the trend towards predictive seismic codes adopting the performance-based design method, this paper presents an integrated protocol to determine the degraded hysteresis parameters of corroded RC hinges based on relationships developed for this purpose together with a calibration procedure using the random-mutation hill-climbing algorithm. The adjustment procedure is integrated into the material library of the OpenSees software and used to perform nonlinear dynamic analyses to investigate the seismic performance of a typical bridge with affected piers at different corrosion levels. In practice the proposed procedure permits to assess the seismic performance of existing or new structures for a given corrosion rate distribution.

Anahtar Kelimeler

• Hysteresis degradation parameters
• reinforcement corrosion
• nonlinear dynamic analysis
• corroded RC bridge pier

Destekleyen Kurum

Ministry of higher education Algeria

Proje Numarası

Grant CNEPRU J0400420140001

Teşekkür

The financial support of the Ministry of higher education MESRS in Algeria (Grant CNEPRU J0400420140001) for conducting this study is greatly acknowledged.

Kaynakça

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