New Approaches to Shape Memory Alloys in Adaptıve Facade Systems

Yıl 2019, Cilt: 3 Sayı: 2, 169 - 181, 11.02.2020

Özge Ergin , Zehra Canan Girgin

Öz

Today; its is confronted with global warming and the reduction of fossil fuel use, and the efficient use of
energy. In this respect, the development of sensitive façade systems, which adapt to environmental conditions,
has gained importance. Dynamic behavior of a building can optimize the energy performance so innovative
concepts such as Adaptive Building Facades will play a very important role in the near future. One of the most
important factors contributing to the performance of adaptive façade systems is the smart and multifunctional
materials. Some smart materials may adapt to environmental conditions with their distinctive behaviors. They
are classified under more than twenty groups, and their utilization in architecture is still under research except
for a few material groups. This research consists of addressing the possible applications of “Shape Memory Alloys
(SMA)” in adaptive façade systems in the group of smart materials changing shape and form. In this study, the
original behavior of SMA, integration to façade system, prototype examples in facade adaptation are focused.

Anahtar Kelimeler

Smart, Innovative, Shape Memory Alloys, Adaptive Façade

Uyarlanabilir Cephe Sistemlerinde Şekil Hafızalı Alaşımlar ve Uygulamaları

Öz

Günümüzde; küresel ısınmanın ve fosil yakıt kullanımının azaltılması, enerjinin etkin kullanımı gibi zorlu
hedeflerle yüzleşilmektedir. Bu bakımdan çevre koşullarına uyum sağlayan, duyarlı cephe sistemlerinin
geliştirilmesi de önem kazanmıştır. Dinamik bina tasarımı ile enerji performansı optimize edilebildiğinden,
“Uyarlanabilir Bina Cepheleri” gibi yenilikçi kavramlar yakın gelecekte çok önemli rol oynayacaktır. Uyarlanabilir
cephe sistemleri performansına katkı sağlayan en önemli faktörlerden biri de akıllı ve çok fonksiyonlu malzeme
etkisidir. Sözkonusu malzemeler, çevre koşullarına karşı özgün davranış biçimleri ile adaptasyona katkı sağlarlar.
Akıllı malzemeler günümüzde yirmiden fazla grup altında sınıflandırılmaktadır, mimarlık alanında kullanımı
ise birkaç malzeme grubu dışında hala araştırma aşamasındadır. Bu araştırma, şekil ve form değiştiren akıllı
malzeme grubunda yer alan Şekil Hafızalı Alaşımların (ŞHA), uyarlanabilir cephe sistemlerine yönelik muhtemel
uygulamaları üzerine odaklanmıştır. Çalışma kapsamında ŞHA’nın özgün davranışı; yapıya entegrasyon, cephe
uyarlamalı güncel araştırmalar ve öncü uygulama örnekleri ile desteklenerek irdelenmiştir.

Anahtar Kelimeler

Akıllı, Yenilikçi, Şekil Hafıza Alaşımları, Uyarlanabilir cephe

Kaynakça

• Abdelmohsen, S., Massoud, P., Elshafei, A. 2016. "Using Tensegrity and Folding to Generate Soft Responsive Architectural Skins", 34th eCAADe International Conference, Finland, Vol 1. 530-535.
• Addington, M., Schodek, D. 2005. "Smart Materials and Technologies for Architecture and Design Professions", Elsevier Ltd., Amsterdam, 241p.
• Chamilothori, K., Oungrinis, K. A., Kampitaki, A.M. 2013. "Climate-Responsive Shading Systems with Integrated Shape Memory Alloys (SMA)", 8th Energy Forum on Solar Building Skins Conference, Italy.
• Chang, W.S., Araki, Y. 2016. "Use of Shape -Memory Alloys in Construction: A Critical Review", ICE Proc. Civil Engineering, 87-92.
• Decker, M., Yeadon, P. 2008. "SmartScreen: Controlling Solar Heat Gain with Shape Memory Systems", Boston Society of Architects Design Research Grants.
• Fiorito, F., Sauchelli, M., Arroyo, D., Pesenti, M., Imperadori, M., Masera, G., Ranzi, G. 2006. "Shape Morphing Solar Shadings" Renewable and Sustainable Energy Reviews 55, 870-872.
• Gamal, Y., Mowafy, O. 2018. "Shape Memory Alloy Shading Systems: An Optimization Model", 4th Building Simulation and Optimization Conference, Cambridge, UK, 488-499.
• Heil, N.C., Laracuente, N.M. 2018. "Bio-inspired Passive Kinetic Solar Shading Device for a Responsive Architectural Envelope", Advanced Building Skin Conference, Bern, Switzerland.
• Huang, W. 1998. "Shape Memory Alloys and their Application to Actuators for Deployable Structures", University of Cambridge Department of Engineering, 2-20.
• Juaristi, M., Barrio, A.M., Knaack, U., Acebo, T.G. 2018. "Smart and Multifunctional Materials and their possible application in façade systems", Journal of Facade Design and Engineering, Vol 6. No 3. (FAÇADE 2018-Adaptive) 19-24.
• Jun, H.Y. 2004. "Development Of a Fuel-Powered Compact SMA" Actuator System.
• Khoo, C.K., Burry, J.R., Burry, M. 2011. "Soft Responsive Kinetic System: An Elastic Transformable Architectural Skin for Climatic and Visual Control", Acadia 2011_Proceedings, 335-337.
• Kumar, P.K., Lagoudas, D.C. 2008. "Shape Memory Alloys", Springer Science+Business Media,4-9.
• Loonen, R.C.G.M., Rico-Martinez, J.M., Favoino, F, Brzezicki, M., Menezo, C., La Ferla, G., Aelenei, L. 2015. "Design for Façade Adaptability- Towards a Unified and Systematic Characterization." In Proc. 10th Energy Forum- Advanced Building Skins, Bern, Switzerland, 1274-1284.
• Toptaş, E., Akkuş, N., Genç, G. 2008, “Şekil Hafızalı Alaşımlı Telin Elektrik Akımı Altındaki davranışının deneysel incelemesi” Proc. 12th International Materials Symposium (IMSP’2008), October 15--17, 2008, Denizli, Turkey.
• Seo, J., Kim, C.Y., Hu, J.W. 2015. "Pilot Study for Investigating the Cyclic Behavior of Slit Damper Systems with Recentering Shape Memory Alloy (SMA) Bending Bars Used for Seismic Restrainers." Applied Sciences, 187-208.
• [1] https://www.fzu.cz/en/novinky/scientists-from-the-czech-academy-of-sciences-explore-the-nature-of-the-localized
• [2] http://transmaterial.net/pixelskin02/
• [3] http://beyond.iaac.net/?page_id=1790
• [4] https://www.youtube.com/watch?v=rWlKe5GWhq8
• [5] http://www.liftarchitects.com/air-flower/
• [6] http://tactile-architecture.com/make-material-city-shading-device/
• [7] https://integrativedesign.org/2012/07/01/skin-soft-kinetic-network/
• [8] https://inhabitat.com/carbon-dioxide-sensing-living-glass/
• [9] http://www.iaacblog.com/programs/self-adaptive-membrane-_-a-passive-kinetic-system/
• [10] http://materiability.com/portfolio/self-adaptive-membrane/
• Omori, T., Ando, K., Okano, M., Xu, X., Tanaka, Y., Ohnuma, I., Kainuma, R., Ishida, K. 2011. “Superelastic effect in polycrystalline ferrous alloys”, Science 333(6038), 68-71.