EXPERIMENTAL AND NUMERICAL INVESTIGATION ON THE EFFECT OF INFILL WALLS ON DYNAMIC BEHAVIOR IN RC STRUCTURES: SHAKE TABLE TESTS

Year 2025, Volume: 13 Issue: 1, 277 - 293, 01.03.2025

Abdulhamit Nakipoğlu , Mahmud Sami Döndüren

https://doi.org/10.36306/konjes.1599894

Abstract

Infill walls have many positive and negative effects on reinforced concrete (RC) buildings under the effect of earthquakes, but these are often not taken into consideration sufficiently. The contribution of walls to stability and stiffness in particular is considerable. In the negative sense, due to various reasons, incorrect/incomplete use of infill walls can cause extremely fatal irregularities such as short columns and soft stories. In this study, the effect of infill walls on the dynamic behavior of reinforced concrete buildings was examined. The study was conducted on a dynamic basis in order to approach the behavior under the effect of earthquakes in a more realistic way. For this purpose, a 1/3 scale 2-storey single-span reinforced concrete frame was produced for the experiments. Forced vibration tests were carried out on the shake table in the reference state (bare frame) and in the infill-walled state. The sample was subjected to an artificial ground motion with a peak ground acceleration (PGA) value of 0.54 g in both states. Experimental modal analysis, load-displacement analysis, and numerical analysis on ETABS structural analysis software were done. As a result, it was observed that the infill walls significantly enhanced the stiffness, leading to a considerable reduction in displacement values. Calculations showed that the natural frequencies increased by approximately 5-10%, while the global damping ratio decreased by about 20%.

Keywords

Dynamic Behavior, Dynamic Characteristics, ETABS, Experimental Modal Analysis, Infill Wall, Shake Table

Ethical Statement

The authors declare that they followed all ethical guidelines including authorship, citation, data reporting, and publishing original research.

Supporting Institution

KTUN Graduate Education Institute

Thanks

This study is part of the doctoral dissertation of the first author, which was accepted by the KTUN Graduate Education Institute in 2024. The dissertation was funded by the KTUN Coordinatorship of the Instructor Training Programme (2018-ÖYP-42). The authors wish to express their gratitude to the KTUN Coordinatorship of the Instructor Training Programme for their collaboration.

References

• Republic of Türkiye Ministry of Interior Disaster and Emergency Management Presidency, TBEC 2018 – Turkish Building Earthquake Code 2018. Ankara, Türkiye, 2018.
• A. S. Aljawadi, M. Vafaei, S. C. Alih, “Seismic strengthening of deficient ground soft-story RC frames with inadequate lap splice using chevron brace,” Structures, vol. 61, pp. 106029, 2024. https://doi.org/10.1016/j.istruc.2024.106029.
• S. Yang, S. Zheng, L. Dong, L. Liu, Y. Xiao, W. Zhao, “Seismic performance of corroded reinforced concrete short columns: Experiment and theoretical analysis,” Structures, vol. 70, pp. 107665, 2024. https://doi.org/10.1016/j.istruc.2024.107665.
• Z. Celep, Structural dynamics, 4th ed., İstanbul: Beta Printing and Publishing, 2011. (in Turkish)
• X. Zhang, Y. Zhou, X. Liu, C. Wang, Z. Sun, “Study on failure mechanism and seismic performance of RC Frame-Infilled walls structures reinforced by CFRP,” Eng Fail Anal, vol. 168, pp. 109114, 2025. https://doi.org/10.1016/j.engfailanal.2024.109114.
• Y. C. Ou, N. V. B. Nguyen, L. Hoang, “Cyclic behavior and pushover analysis of large scale two-bay, two-story reinforced concrete frames infilled with walls with openings,” Eng Struct, vol. 317, pp. 118663, 2024. https://doi.org/10.1016/j.engstruct.2024.118663.
• W. Jin, C. Zhai, M. Zhang, W. Liu, Y. Wei, L. Xie, “Experimental investigation on the in-plane and out-of-plane interaction of isolated infills in RC frames,” Eng Struct, vol. 293, pp. 116569, 2023. https://doi.org/10.1016/j.engstruct.2023.116569.
• S. Pradhan, Y. Sanada, Y. Rokhyun, H. Choi, K. Jin, “Effects of passive confinement on out-of-plane robustness of unreinforced masonry infill walls,” Structures, vol. 65, pp. 106676, 2024. https://doi.org/10.1016/j.istruc.2024.106676.
• J. Monical, S. Pujol, “A study of the response of reinforced concrete frames with and without masonry infill walls to earthquake motions,” Structures, vol. 63, pp. 106345, 2024. https://doi.org/10.1016/j.istruc.2024.106345.
• J. K. Bhaskar, D. Bhunia, L. Koutas, “In-plane behaviour of masonry infill walls with openings strengthened using textile reinforced mortar,” Structures, vol. 63, pp. 106439, 2024. https://doi.org/10.1016/j.istruc.2024.106439.
• H. Wang, S. Li, C. Zhai, “Experimental and numerical investigation on progressive collapse of self-centering precast concrete frame with infill walls,” J Build Eng, vol. 78, pp. 107472, 2023. https://doi.org/10.1016/j.jobe.2023.107472.
• H. Wang, S. Li, C. Zhai, “Effect of infill walls on progressive collapse behavior of self-centering precast concrete frame,” Structures, vol. 59, pp. 105729, 2024. https://doi.org/10.1016/j.istruc.2023.105729.
• S. Li, H. Wang, H. Liu, S. Shan, C. Zhai, “Experimental study on progressive collapse of self-centering precast concrete frame with infill walls,” Eng Struct, vol. 294, pp. 116746, 2023. https://doi.org/10.1016/j.engstruct.2023.116746.
• N. Ning, Z. J. Ma, P. Zhang, D. Yu, J. Wang, “Influence of masonry infills on seismic response of RC frames under low frequency cyclic load,” Eng Struct, vol. 183, pp. 70-82, 2019. https://doi.org/10.1016/j.engstruct.2018.12.083.
• R. Luo, X. Guo, B. Wang, X. Dong, Q. Zhang, Z. Quyang, “The impact of infill wall distribution on the mechanical behavior and failure patterns of multi-story RC frame structures: An acceleration strain coupled testing approach,” Structures, vol. 59, pp. 105737, 2024. https://doi.org/10.1016/j.istruc.2023.105737.
• Y. Li, Z. Ning, H. L. Shan, C. M. Gao, S. Huang, “Seismic behavior of steel frame infilled with wall-panels connected by sliding joint,” J Constr Steel Res, vol. 212, pp. 108253, 2024. https://doi.org/10.1016/j.jcsr.2023.108253.
• C. Zhang, Z. Yang, T. Yu, W. Huang, X. Deng, Z. Lin, S. Wu, “Experimental and numerical studies of improving cyclic behavior of infilled reinforced concrete frame by prefabricated wall panels with sliding joints,” J Build Eng, vol. 77, pp. 107524, 2023. https://doi.org/10.1016/j.jobe.2023.107524.
• F. S. Balık, F. Bahadır, M. Kamanlı, “Seismic behavior of lap splice reinforced concrete frames with light-steel-framed walls and different anchorage details,” Struct Eng Int, vol. 33, no. 3, pp. 488-497, 2023. https://doi.org/10.1080/10168664.2022.2073941.
• G. B. Nie, Y. J. Shi, C. X. Zheng, Z. Y. Wang, W. Wang, Q. S. Yang, “Shaking table test on progressive collapse of the double-layer cylindrical reticulated shell with infilled wall,” Structures, vol. 67, pp. 106946, 2024. https://doi.org/10.1016/j.istruc.2024.106946.
• V. Nicoletti, L. Tentella, S. Carbonari, F. Gara, “Stiffness contribution and damage index of infills in steel frames considering moderate earthquake-induced damage,” Structures, vol. 69, pp. 107581, 2024. https://doi.org/10.1016/j.istruc.2024.107581.
• Q. Q. Yu, J. Y. Wu, X. L. Gu, L. Wang, “Seismic behavior of hinged steel frames with masonry infill walls,” J Build Eng, vol. 77, pp. 107536, 2023. https://doi.org/10.1016/j.jobe.2023.107536.
• F. Bahadir, “Experimental study on three-dimensional reinforced concrete frames subjected to dynamic loading,” Structures, vol. 24, pp. 835-850, 2020. https://doi.org/10.1016/j.istruc.2020.01.045.
• S. Yousefianmoghadam, M. Song, A. Stavridis, B. Moaveni, “System identification of a two-story infilled RC building in different damage states,” Improving the Seismic Performance of Existing Buildings and Other Structures, pp. 607-618, 2015. https://doi.org/10.1061/9780784479728.050.
• M. Inel, S. M. Senel, H. Un, “Experimental evaluation of concrete strength in existing buildings,” Magazine of Concrete Research, vol. 60, pp. 279-289, 2008. https://doi.org/10.1680/macr.2007.00091.
• I. Khan, K. Shahzada, T. Bibi, A. Ahmed, H. Ullah, “Seismic performance evaluation of crumb rubber concrete frame structure using shake table test,” Structures, vol. 30, pp. 41-49, 2021. https://doi.org/10.1016/j.istruc.2021.01.003.
• S. Gavridou, J. W. Wallace, T. Nagae, T. Matsumori, K. Tahara, K. Fukuyama, “Shake-table test of a full-scale 4-story precast concrete building. I: Overview and experimental results,” J Struct Eng, vol. 143, no. 6, pp. 04017034, 2017. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001755.
• A. G. El-Attar, R. N. White, P. Gergely, “Shake table test of a 1/8 scale three-story lightly reinforced concrete building,” National Center for Earthquake Engineering Research, Cornell University, USA, Tech. Report. 1991:NCEER-91-0018.
• SeismoSignal v4.3.0. Seismosoft Ltd., 2011.
• OriginPro, Northampton, Massachusetts: OriginLab Corporation, 2021.
• Microsoft Office 365, Microsoft Excel, Redmond, Washington: Microsoft Corporation.
• EasyTest Experimental Modal v2.1.5, Ankara: Teknik Destek Grubu Ltd., 2023.
• ETABS Ultimate v19.1.0, Berkeley, California: Computers and Structures Inc., 2021.
• A. K. Chopra, Dynamics of structures: Theory and applications to earthquake engineering, 4th ed., London: Pearson Education Ltd., 2012.