Abstract
Betonarme kolonlar binalardaki ana düşey elemanlardır. Üst yapı yükleri, boyuna ve enine donatılarla birlikte yeterli kesit boyutlarına sahip olarak tasarlanan kolonlar tarafından temele aktarılır. Ancak beton kalitesinin düşük olduğu ve donatı eksikliğinin belirtildiği durumlarda betonarme kolonlar güçlendirilmesi gerekmektedir. Betonarme kolonlar için en yaygın güçlendirme tekniği mantolamadır. Bu yöntemde, mevcut kolonun dayanımı, beton dökülerek ve mantolama donatıları kullanılarak artırılmaktadır. Kolonlar çeşitli düşey ve yanal yük kombinasyonlarına göre tasarlanmasına rağmen, etkileri kısa sürede çok yüksek değerlere ulaşabilen çarpma yükleri dikkate alınmamaktadır. Bu çalışma kapsamında, mevcut ve güçlendirilmiş betonarme kolonların çarpma davranışları nümerik olarak incelenmiştir. Bu amaçla, mühendisler tarafından bu tür çözümler için yaygın olarak kullanılan Abaqus yazılımı ile doğrusal olmayan artımlı dinamik analizler gerçekleştirilmiştir. İvme, yer değiştirme ve çarpma yükü değerleri ile çatlak dağılımları nümerik analizden sonra elde edilmiştir. Sonuçlar, mevcut ve güçlendirilmiş kolonlar için karşılaştırmalı olarak sunulmuştur. Analiz çıktıları, önerilen sonlu eleman modellerinin betonarme kolonların çarpma tepkileri hakkında bir fikir verdiğini ortaya koymaktadır. Sonuç olarak, bu çalışmanın araştırmacıların laboratuvar koşullarında yüksek maliyet ve ağır iş yükü gerektiren çarpma deneylerini yapmak zorunda kalmadan doğrusal olmayan analizler yapmalarına katkı sağlayabileceği değerlendirilmektedir.
References
- Abaqus Version 6.12 (2015). User’s Manual. Simulia, Dassault Systèmes Simulia Corp.
- E23-00, A. (2002). Standard test methods for notched bar impact testing of metallic materials. ASTM International.
- Erdem, R. T. (2014). Prediction of acceleration and impact force values of a reinforced concrete slab. Computers and Concrete, 14(5), 563–575.
- Wang, X., Zhang, Y., Su, Y. & Feng, Y. (2011). Experimental investigation on the effect of reinforcement ratio to capacity of RC column to resist lateral impact loading. Systems Engineering Procedia, 1, 35–41.
- Anil, Ö., Erdem, R. T. & Tokgöz, M. (2018). Investigation of lateral impact behavior of RC columns. Computers and Concrete. 22(1), 123–132.
- Li, H., Chen,W., Huang, Z., Hao,H., Ngo, T. T. & Pham, T. M. (2022). Influence of various impact scenarios on the dynamic performance of concrete beam-column joints. International Journal of Impact Engineering, 167, 104284.
- Zhang, X., Hao, H. & Li, C. (2016). Experimental investigation of the response of precast segmental columns subjected to impact loading. International Journal of Impact Engineering, 95, 105–124.
- Do, T. V., Pham, T. M. & Hao, H. (2018). Numerical investigation of the behavior of precast concrete segmental columns subjected to vehicle collision. Engineering Structures, 156, 375–393.
- Jiang, H., Wang, X. & He, S. (2012). Numerical simulation of impact tests on reinforced concrete beams. Materials & Design, 39, 111–120.
- Zhao, D. B., Yi, W. J. & Kunnath, S. K. (2018). Numerical simulation and shear resistance of reinforced concrete beams under impact. Engineering Structures, 166, 387–401.
- Othman, H. & Marzouk, H. (2017). Finite-element analysis of reinforced concrete plates subjected to repeated impact loads. Journal of Structural Engineering, 143(9), 1–16.
- Genikomsou, A. S. & Polak, M. A. (2015). Finite element analysis of punching shear of concrete slabs using damaged plasticity model in abaqus. Engineering Structures, 98, 38–48.
- Li, J., Hao, H. & Wu, C. (2017). Numerical study of precast segmental column under blast loads. Engineering Structures, 134, 127–137.
- Anil, Ö., Erdem, R. T. & Tokgöz, M. N. (2018). Investigation of lateral impact behavior of rc columns. Computers and Concrete, 22(1), 123–132.
- Erdem, R. T. & Gücüyen, E. (2017). Non-linear analysis of reinforced concrete slabs under impact effect. Gradevinar, 69(6), 479–487.
- Yılmaz, T., Kıraç, N., Anil, Ö., Erdem, R. T. & Kaçaran, G. (2020). Experimental investigation of impact behaviour of rc slab with different reinforcement ratios. KSCE Journal of Civil Engineering, 24(1), 241–254.
- Anil, Ö., Durucan, C., Erdem, R. T. & Yorgancular, M. A. (2016). Experimental and numerical investigation of reinforced concrete beams with variable material properties under impact loading. Construction and Building Materials, 125, 94–104.
- Erdem, R. T. & Karal, K. (2022). Performance evaluation and strengthening of reinforced concrete buildings. Revista de La Construcción, 21(1), 53–68.
- Sayed, A. M., Rashwan, M. M. & Helmy, E. H. (2020). Experimental behavior of cracked reinforcedconcrete columns strengthened with reinforced concrete jacketing. Materials, 13(12), 2832.
Abstract
Reinforced concrete (RC) columns are the main vertical elements in the buildings. Superstructure loads are transferred to the foundation by the columns whose design involves sufficient section sizes with longitudinal and transverse reinforcements. However, RC columns are required to be strengthened when low concrete quality and lack of reinforcement is stated. The most common strengthening technique for the RC columns is jacketing. In this method, strength of the existing column is improved by concreting and installing jacketing reinforcements. Although columns are designed according to several vertical and lateral load combinations, impact loads whose effects may reach very high values at short notice are not regarded. In the scope of this study, impact behavior of the existing and strengthened RC columns is numerically investigated. For this purpose, non-linear incremental dynamic analysis is carried out by Abaqus software that is widely utilized by engineers for such solutions. Acceleration, displacement and impact load values as well as crack patterns are obtained after numerical analysis. The results are comparatively presented for the existing and the strengthened columns. Analysis outputs reveal that proposed finite element models give an opinion about the impact responses of the RC columns. Consequently, it is evaluated that this study may make contribution to the researchers generating non-linear analysis without having to perform impact experiments that require high costs and heavy workloads in the laboratory conditions.
References
- Abaqus Version 6.12 (2015). User’s Manual. Simulia, Dassault Systèmes Simulia Corp.
- E23-00, A. (2002). Standard test methods for notched bar impact testing of metallic materials. ASTM International.
- Erdem, R. T. (2014). Prediction of acceleration and impact force values of a reinforced concrete slab. Computers and Concrete, 14(5), 563–575.
- Wang, X., Zhang, Y., Su, Y. & Feng, Y. (2011). Experimental investigation on the effect of reinforcement ratio to capacity of RC column to resist lateral impact loading. Systems Engineering Procedia, 1, 35–41.
- Anil, Ö., Erdem, R. T. & Tokgöz, M. (2018). Investigation of lateral impact behavior of RC columns. Computers and Concrete. 22(1), 123–132.
- Li, H., Chen,W., Huang, Z., Hao,H., Ngo, T. T. & Pham, T. M. (2022). Influence of various impact scenarios on the dynamic performance of concrete beam-column joints. International Journal of Impact Engineering, 167, 104284.
- Zhang, X., Hao, H. & Li, C. (2016). Experimental investigation of the response of precast segmental columns subjected to impact loading. International Journal of Impact Engineering, 95, 105–124.
- Do, T. V., Pham, T. M. & Hao, H. (2018). Numerical investigation of the behavior of precast concrete segmental columns subjected to vehicle collision. Engineering Structures, 156, 375–393.
- Jiang, H., Wang, X. & He, S. (2012). Numerical simulation of impact tests on reinforced concrete beams. Materials & Design, 39, 111–120.
- Zhao, D. B., Yi, W. J. & Kunnath, S. K. (2018). Numerical simulation and shear resistance of reinforced concrete beams under impact. Engineering Structures, 166, 387–401.
- Othman, H. & Marzouk, H. (2017). Finite-element analysis of reinforced concrete plates subjected to repeated impact loads. Journal of Structural Engineering, 143(9), 1–16.
- Genikomsou, A. S. & Polak, M. A. (2015). Finite element analysis of punching shear of concrete slabs using damaged plasticity model in abaqus. Engineering Structures, 98, 38–48.
- Li, J., Hao, H. & Wu, C. (2017). Numerical study of precast segmental column under blast loads. Engineering Structures, 134, 127–137.
- Anil, Ö., Erdem, R. T. & Tokgöz, M. N. (2018). Investigation of lateral impact behavior of rc columns. Computers and Concrete, 22(1), 123–132.
- Erdem, R. T. & Gücüyen, E. (2017). Non-linear analysis of reinforced concrete slabs under impact effect. Gradevinar, 69(6), 479–487.
- Yılmaz, T., Kıraç, N., Anil, Ö., Erdem, R. T. & Kaçaran, G. (2020). Experimental investigation of impact behaviour of rc slab with different reinforcement ratios. KSCE Journal of Civil Engineering, 24(1), 241–254.
- Anil, Ö., Durucan, C., Erdem, R. T. & Yorgancular, M. A. (2016). Experimental and numerical investigation of reinforced concrete beams with variable material properties under impact loading. Construction and Building Materials, 125, 94–104.
- Erdem, R. T. & Karal, K. (2022). Performance evaluation and strengthening of reinforced concrete buildings. Revista de La Construcción, 21(1), 53–68.
- Sayed, A. M., Rashwan, M. M. & Helmy, E. H. (2020). Experimental behavior of cracked reinforcedconcrete columns strengthened with reinforced concrete jacketing. Materials, 13(12), 2832.
Details
| Primary Language | English |
|---|---|
| Subjects | Civil Engineering |
| Journal Section | Research Articles |
| Authors | |
| Publication Date | December 28, 2023 |
| Submission Date | April 17, 2023 |
| Published in Issue | Year 2023 Volume: 3 Issue: 2 |
