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http://dx.doi.org/10.5000/EESK.2004.8.5.045

Energy-Based Hysteretic Models for R/C Members  

Eom, Tae-Sung (서울대학교 공과대학 건축학과 건축구조시스템 연구실)
Park, Hong-Gun (서울대학교 공과대학 건축학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.8, no.5, 2004 , pp. 45-54 More about this Journal
Abstract
Since existing hysteretic models for R/C members focused on presenting the degrading stiffness using empirical equations based on experiments, they cannot accurately predict the energy dissipation capacity during cyclic loading. Recently, design equations which can evaluate the energy dissipation capacity of R/C members were developed. Based on those equations, in the present study, an energy-based hysteretic model for flexure-dominated R/C members was developed. The proposed model was devised to dissipate the same energy as the actual one dissipated during a complete load cycle. The proposed model represents the hysteretic behaviors of R/C members accompanied by stiffness degradation and pinching using primary and cyclic curves and six unloading/reloading rules. The proposed model was verified by comparisons with various experimental results. The energy-based hysteretic model can be used to develop computer programs for static and dynamic analysis/design because it is simple and easily applicable to numerical analysis.
Keywords
hysteretic model; energy dissipation capacity; cyclic behavior; stiffness degradation; pinching; reinforced concrete;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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