Nonlinear modeling of cyclic response of RC beam–column joints reinforced by plain bars
| Autor: | Mahdi Adibi, Reza Allahvirdizadeh, Mohammad S. Marefat |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
021110 strategic
defence & security studies business.industry Diagonal Linear elasticity 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Slip (materials science) Structural engineering Geotechnical Engineering and Engineering Geology 0201 civil engineering Nonlinear system Geophysics Shear (geology) Slippage business Reinforcement Failure mode and effects analysis Geology Civil and Structural Engineering |
| Zdroj: | Bulletin of Earthquake Engineering. 16:5529-5556 |
| ISSN: | 1573-1456 1570-761X |
| DOI: | 10.1007/s10518-018-0399-4 |
| Popis: | Experience of previous earthquakes shows that a considerable portion of buildings reinforced with plain bars sustain relatively large damages especially at the beam–column joints where the damages are mostly caused by either diagonal shear cracks or intersectional cracks caused by bar slippage. While previous works mainly focus on shear failure mode, in this study, the emphasis is placed on slip based cracks as the dominant failure mode. A systematic procedure is introduced to predict the dominant failure mode at the joint which is based on the dimensional properties, reinforcement details, and axial and shear load at the joint. In addition, a relatively simple and efficient nonlinear model is proposed to simulate pre- and post-elastic behavior of the joints which fail under bar slippage mode. In this model, beam and column components are represented by linear elastic elements, dimensions of the joint panel are defined by rigid elements, and effect of slip is taken into account by a nonlinear rotational spring at the end of the beam. The proposed method is validated by experimental results for both internal and external joints . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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