Abstract
Akustik Emisyon (AE), gerilme altındaki malzemelerin hızla enerji salarak geçici elastik dalgalar ürettiği olaylar ve bu şekilde oluşan geçici elastik dalgalar olarak tanımlanır. Bu çalışmada, betonarme mantolama yöntemiyle güçlendirilmiş kolonların analizi akustik emisyon tekniği ile deneysel olarak araştırılmıştır. Yük taşıyamaz halde bulunan 25x25x195 cm boyutlarındaki betonarme kolonlar mantolama yöntemiyle güçlendirilmiştir. Bu bağlamda, referans kolondan farklı olarak betonarme kolonlara iki farklı türde güçlendirme stratejisi uygulanmıştır. Birinci kolon (referans kolon); boyuna donatıları süreksiz ve ankrajsız olarak üretilmiştir. İkinci kolon, kayma donatılı (ankrajlı), boyuna donatıları süreksiz olacak şekilde imal edilmiştir. İkinci kolondan farklı olarak; üçüncü kolonda boyuna donatılar sürekli olacak şekilde donatılandırma yapılmıştır. Ardından numuneler tersinir tekrarlı yük altında göçmeye maruz bırakılmıştır. Bu deneysel çalışmanın sonucunda, deney elemanlarının akustik emisyon ile analizleri karşılaştırılmış, yorumlanmış ve bazı önerilerde bulunulmuştur.
References
- 1) ASTM E1316, “Standard Terminology for NDT”, (2002)
- 2) EN 1330-9, “Terms Used in AE Testing”, (2000).
- 3) Tuncel, S., “Tahribatsız Muayene Teknolojilerinde Son Gelişmeler: Akustik Emisyon”, 3rd International Non-Destructive Testing Symposium and Exhibition, İstanbul, (2008).
- 4) Aldahdooh, M.A.A., Bunnori, N.M. and Johari, M.A.M., “Damage Assessment of Reinforced Concrete Beams at Different Flexural Damage Levels Using Acoustic Emission Technique”, Malaysian Construction Research Journal, 2: 79-90, (2012).
- 5) Rossi, P., Tailhan, J.L., Maou, F.L., Gaillet, L. and Martin, E., “Basic Creep Behavior of Concretes Investigation of The Physical Mechanisms by Using Acoustic Emission”, Cement and Concrete Research, 42: 61–73, (2012).
- 6) Kaiser, V. J., “Knowledge and Research on Noise Measurements During The Tensile Stressing of Metals”, Archiv für das Eisenhüttenwesen, 24: 43-44p, (1953).
- 7) Ohtsu, M., “History and Fundamentals”, Acoustic Emission Testing: Part A, Springer-Verlag Berlin Heidelberg, (2008).
- 8) Grosse, C.U. and Ohtsu, M., “Acoustic Emission Testing Basics for Research-Applications in Civil Engineering”, Springer-Verlag Berlin Heidelberg, (2008).
- 9) Goszczynska, B., “Analysis of The Process of Crack Initiation and Evolution in Concrete with Acoustic Emission Testing”, Archives of Civil and Mechanical Engineering, 14: 134-143, (2014).
- 10) Özdemir, A., “Hasarlı Betonarme Kolonların Mantolama Yöntemiyle Güçlendirilmesi ve Akustik Emisyon Yöntemiyle Deneysel Analizi”, Yüksek Lisans Tezi, Ege Üniversitesi Fen Bilimleri Enstitüsü, (2015).
- 11) NDT Resource Center, Introduction to Acoustic Emission Testing, www.ndeed.org/index_flash.htm (Erişim tarihi: 17 Haziran 2015).
- 12) Shiotani T., “Parameter Analysis”, Acoustic Emission Testing: Part A, Springer-Verlag Berlin Heidelberg, (2008).
Abstract
Acoustic Emission (AE) is defined as a phenomenon, materials which are under stress, are emitting energy and producing temporary elastic waves. In this paper, analysis of the reinforced concrete columns jacketing method was experimentally investigated by acoustic emission technique. Non-load-bearing reinforced concrete columns with dimensions of 25x25x195 cm were reinforced with the jacketing method. With this regard, two different types of retrofitting strategies were applied to RC columns and were validated via the results of a reference column. The first column has impermanent vertical reinforcement and no anchors. Second column is designed as shear reinforcement (anchors), impermanent vertical reinforcement. As a differance from the second column in the third column vertical reinforcements are permanent. Then, the specimens under reversible cyclic loads have been subjected to failure. Result from this experimental work, the acoustic emission analysis of specimens are compared, commented and recommendations are made accordingly.
References
- 1) ASTM E1316, “Standard Terminology for NDT”, (2002)
- 2) EN 1330-9, “Terms Used in AE Testing”, (2000).
- 3) Tuncel, S., “Tahribatsız Muayene Teknolojilerinde Son Gelişmeler: Akustik Emisyon”, 3rd International Non-Destructive Testing Symposium and Exhibition, İstanbul, (2008).
- 4) Aldahdooh, M.A.A., Bunnori, N.M. and Johari, M.A.M., “Damage Assessment of Reinforced Concrete Beams at Different Flexural Damage Levels Using Acoustic Emission Technique”, Malaysian Construction Research Journal, 2: 79-90, (2012).
- 5) Rossi, P., Tailhan, J.L., Maou, F.L., Gaillet, L. and Martin, E., “Basic Creep Behavior of Concretes Investigation of The Physical Mechanisms by Using Acoustic Emission”, Cement and Concrete Research, 42: 61–73, (2012).
- 6) Kaiser, V. J., “Knowledge and Research on Noise Measurements During The Tensile Stressing of Metals”, Archiv für das Eisenhüttenwesen, 24: 43-44p, (1953).
- 7) Ohtsu, M., “History and Fundamentals”, Acoustic Emission Testing: Part A, Springer-Verlag Berlin Heidelberg, (2008).
- 8) Grosse, C.U. and Ohtsu, M., “Acoustic Emission Testing Basics for Research-Applications in Civil Engineering”, Springer-Verlag Berlin Heidelberg, (2008).
- 9) Goszczynska, B., “Analysis of The Process of Crack Initiation and Evolution in Concrete with Acoustic Emission Testing”, Archives of Civil and Mechanical Engineering, 14: 134-143, (2014).
- 10) Özdemir, A., “Hasarlı Betonarme Kolonların Mantolama Yöntemiyle Güçlendirilmesi ve Akustik Emisyon Yöntemiyle Deneysel Analizi”, Yüksek Lisans Tezi, Ege Üniversitesi Fen Bilimleri Enstitüsü, (2015).
- 11) NDT Resource Center, Introduction to Acoustic Emission Testing, www.ndeed.org/index_flash.htm (Erişim tarihi: 17 Haziran 2015).
- 12) Shiotani T., “Parameter Analysis”, Acoustic Emission Testing: Part A, Springer-Verlag Berlin Heidelberg, (2008).
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Engineering |
| Journal Section | Research Article |
| Authors | |
| Publication Date | March 1, 2017 |
| Submission Date | September 22, 2016 |
| Published in Issue | Year 2017 Volume: 20 Issue: 1 |
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