Vulnerability-Preventing Structures in Disaster Management: Polyurea Coating on Building Structural Elements

Year 2023, Volume: 12 Issue: 4, 1768 - 1781, 26.12.2023

Öznur Akduman , Yavuz Selim Aksüt , Afşin Ahmet Kaya

https://doi.org/10.37989/gumussagbil.1323932

Cited By: 1

Abstract

Numerous disasters occur due to the inability to manage risks arising from natural, technological, and human-induced hazards. As a result of these disasters, the magnification of incurred damages underscores the significance of the concept of risk management, an integral step in disaster management. Consequently, efforts to mitigate the adverse effects of earthquakes and other disasters are progressively increasing. However, endeavors aimed at reducing the damages inflicted by earthquakes and other disasters on structures, particularly earthquakes, are not yet at an adequate level. Presently, the importance of alternative solution models to counteract the forces exerted on structures during disasters like earthquakes is on the rise.In this study, unreinforced concrete blocks were coated with flexible polyurea, a state-of-the-art cladding material extensively used in various fields, at different thicknesses. Three-point bending tests were performed on the coated specimens. The data obtained from these tests were analyzed and evaluated. It was concluded that specimens coated with polyurea exhibited higher strengths compared to uncoated specimens. This study introduces the utilization of polyurea flexible composite material in structural elements as an alternative method within the spectrum of precautions taken to enhance the safety of structures against various disasters, primarily earthquakes.

Keywords

Disaster Risk Management, Earthquakes, Seismic Risk Evaluation, Building Safety, Polyurea Composites

Thanks

This study was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) 2209-A University Students Research Projects Support Program. Project application number: 1919b011901241.

Afet Yönetiminde Zarar Görebilirliği Önleyici Yapılar: Bina Yapısal Elemanlarında Poliüre Kaplama

Abstract

Doğal, teknolojik ve insan kaynaklı tehlikelerden ortaya çıkan risklerin yönetilememesi sonucunda birçok afet meydana gelmektedir. Yaşanan bu afetler sonucunda; oluşan zararların büyük boyutlara ulaşması, afet yönetiminin bir basamağı olan risk yönetimi kavramını önemli kılmaktadır. Bu nedenle depremler ve diğer afetlerin olumsuz etkilerini önlemeye yönelik çalışmaların sayısı her geçen gün artmaktadır. Depremler başta olmak üzere diğer afetlerin yapılara verdiği zararları azaltmak ve mümkünse bu zararları önlemeye yönelik çalışmalar henüz yeterli düzeyde değildir. Günümüzde deprem gibi afetlerde yapılara etkiyen kuvvetleri karşılamaya yönelik olarak alternatif çözüm modellerinin önemi giderek artmaktadır. Bu çalışmada donatısız beton bloklar, yeni nesil bir kaplama malzemesi olan ve birçok alanda sıkça kullanılan esnek poliüre kaplama malzemesi ile faklı kalınlıklarda kaplanmıştır. Kaplanmış olan numuneler üzerinde 3 noktalı eğilme testi gerçekleştirilmiştir. Bu testlerden elde edilen veriler analiz edilerek değerlendirilmiştir. Poliüre ile kaplı numunelerin, poliüre ile kaplanmamış numunelere göre mukavemetlerinin yüksek çıktığı sonucuna varılmıştır. Bu çalışma yapı elemanlarında poliüre esnek kompozit malzemesinin kullanılması ile deprem başta olmak üzere diğer pek çok afete karşı yapıların güvenliğini artırmaya yönelik olarak alınan önlemler içerisinde alternatif bir yöntem olarak sunulmuştur.

Keywords

Afet Risk Yönetimi, Depremler, Sismik Risk Değerlendirme, Yapı Güvenliği, Poliüre Kompozitler

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