Investigation of nonlinear behavior of high ductility reinforced concrete shear walls

Yıl 2020, Cilt: 4 Sayı: 2, 116 - 128, 15.08.2020

Saeid Foroughi Bahadır Yüksel

https://doi.org/10.35860/iarej.693724

Cited By: 2

Öz

In this study, the nonlinear behavior of ductile reinforced concrete (RC) shear walls having different parameters was analytically investigated. The purpose of this study is to determine the effect of axial load, longitudinal reinforcement ratio and transverse reinforcement ratios on the moment-curvature and lateral force-lateral peak displacement relationships of RC shear walls. RC shear walls that have various parameters were designed by taking into account the regulation of the Turkish Building Earthquake Code (TBEC, 2018). By considering the nonlinear behavior of the materials, behaviors of the RC shear walls were examined within the framework of the moment-curvature relation. The moment-curvature relations of RC shear walls with different parameters were obtained with the Mander model which takes into consideration the lateral confined concrete strength for different parameters. The effects of the analyzed parameters on the nonlinear behavior of the RC shear walls were evaluated in terms of curvature ductility, moment capacity, peak displacement, the angular displacement and displacement ductility values. It was seen that changes in the transverse reinforcement, longitudinal reinforcement, and axial load levels had important influence on the moment-curvature and lateral force-lateral peak displacement behavior of the RC shear walls.

Anahtar Kelimeler

Curvature ductility, Displacement ductility, Lateral force, Moment-curvature, Nonlinear behavior, Peak displacement, Shear wall

Kaynakça

• 1. Özdemir, M. A., Kazaz, İ., and Özkaya, S. G, Evaluation and comparison of ultimate deformation limits for RC columns, Engineering Structures, 2017. 153: p. 569–581.
• 2. Foroughi, S., and S. B. Yuksel, Investigation of the Moment-Curvature Relationship for Reinforced Concrete Square Columns, Turkish Journal of Engineering (TUJE), 2020. 4(1): p. 36-46.
• 3. Perez, J. C. V., and M. M. Mulder, Improved Procedure for Determining the Ductility of Buildings under Seismic Loads, Revista Internacional de Metodos Numericos para Calculoy Diseno en Ingenieria, 2018. 34(1): p. 27.
• 4. Kazaz, İ., Gülkan, P., and Yakut, A, Deformation Limits for Structural Walls with Confined Boundaries, Earthquake Spectra, 2012. 28(3): p. 1019-1046.
• 5. Kazaz, İ., Gülkan, P., and Yakut, A, Examination of code performance limits for shear walls, 15 WCEE, LISBOA, 2012.
• 6. TS500, Requirements for Design and Construction of Reinforced Concrete Structures, Turkish Standards Institute, 2000. Ankara, Turkey.
• 7. TBEC, Turkish Building Earthquake Code: Specifications for Building Design under Earthquake Effects, T.C. Bayındırlık ve İskan Bakanlığı, 2018. Ankara.
• 8. Bohl, A., and P. Adebar, Plastic hinge lengths in high-rise concrete shear walls, ACI Structure Journal, 2011. 108(2): p. 148-157.
• 9. Hoult, R. H, Goldsworthy, and E. Lumantarna, Plastic Hinge Length for Lightly Reinforced Rectangular Concrete Walls. Journal of Earthquake Engineering, 2018. 22(8): p. 1447-1478.
• 10. Kazaz, İ, Analytical Study on Plastic Hinge Length of Structural Walls. Journal of Structural Engineering, 2013. 139(11): p. 1938-1950.
• 11. Uniform Building Code, International Council of Building Officials, Whittier, California, 1997.
• 12. Park, R., and T. Paulay, Reinforced concrete structures, Wiley, New York, 1975.
• 13. Foroughi, S., and S. B. Yuksel, Investigation of Displacement Behavior of Reinforced Concrete Shear Walls with Different Plastic Hinge Relationships, International Journal of Eastern Anatolia Science Engineering and Design, 2019. 1(2): p. 196-211.
• 14. SAP2000, Structural Software for Analysis and Design, Computers and Structures, Inc, USA.
• 15. Mander, J. B., M. J. N. Priestley, and R. Park, Theoretical stress-strain model for confined concrete, Journal of Structural Engineering, 1988. 114(8): p. 1804-1826.
• 16. Foroughi, S., and S. B. Yuksel, Analytical Investigation of Curvature Ductility of Reinforced Concrete Columns, Uludağ University Journal of the Faculty of Engineering, 2020. 25(1): p. 27-38.