Çubuk Ağı Ahşap Kubbeler

Öz

Öz

Geniş açıklıklı yapı ihtiyacına yönelik tasarım anlayışının, 20. yy’ın başlarından itibaren kendini gösterdiği

söylenebilir. Bu anlayışta, malzeme, biçim ve taşıyıcı sistem bir bütün halinde değerlendirilir ve tasarıma katılır.

20.yy’ın ikinci yarısından itibaren gelişen lamine ahşap kompozit eleman (glulam) üretim teknolojileri, geniş

açıklıklı ahşap yapı tasarımını mümkün kılmıştır. Bu çalışmada çubuk ağı kabuk sistemler genelinde; önemli

bir uygulama alanı bulan tek tabakalı ahşap kubbeler incelenmektedir. Malzeme, form ve taşıyıcı sistemin

verimliliği, bilinen en geniş açıklıklı ahşap kubbe örnekleri üzerinden karşılaştırmalı olarak irdelenmektedir.

Kubbe maliyetine etki eden parametrelerden biri taşıyıcı sistemin tipi ve basıklığıdır, jeodezik sistem ekonomikliği

ile tercih edilmektedir. Birleşimlerin teşkil biçimi ve yükleri taşıma kapasitesinin yanısıra; kubbe yüklerinin

zemine aktarılma biçimi de önemlidir. İncelenen örneklerden, yüklerin payandadan çekme çemberine aktarım

biçiminin en uygun çözüm olduğu görülmektedir.

Anahtar Kelimeler

• Lamine ahşap kiriş,Geniş açıklık,Çubuk ağı kubbe,Ahşap,Düğüm noktası

Reticulated Timber Domes

Öz

Abstract

It can be said that the concept of design for the needs of the wide span structure has emerged from the

beginning of the 20th century. In this approach, the material, form and structural system are evaluated as

a whole and are included in the design. Since the second half of the 20th century, the production of glue

laminated members (glulam) has made possible to design wide span wooden structures. In this study, singlelayer

reticulated wooden domes which have an important position in application area are adressed. The

efficiency of the material, form and structural system is investigated on the well known largest-span timber

domes. One of the parameters affecting the cost of the dome is the type and aspect ratio of the structural

system, geodesic system is economically preferred. In addition to the load carrying capacity of nodes and

connections, transferring of the loads on domes to the ground is also important. The load transfer from

buttresses to the tension ring seems the most appropriate solution.

Anahtar Kelimeler

• Glulam,Large-span,Reticulated dome,Wood,Node

Kaynakça

1. Aondio, P. 2014. “Berechnung von Zylinderschalen aus Holz und Holzwerkstoffen unter Berücksichtigung der Spannungs Relaxation”, Technische Universtät München.
2. Bass, L.O. 1965. “Unusual Dome Awaits Baseball Season in Houston”, American Society of Civil Engineers (ASCE).
3. Chilton, J., Tang, G. 2017. Timber Gridshells: Architecture, Structure and Craft, Routledge, NY.
4. Fredriksson G., Herrström M. 2017. Stability Analysis of a Large Span Timber Dome, Division of Structural Engineering, Lund University, Sweden.
5. Jasieńko J., Nowak, T., Ostrycharczyk, A. 2011. “Hybrid Domes Made of Glulam and Steel - A Study of the Structure”, Conservation News, 30:81-93.
6. Jayminkumar, S.Y., Vahora, F. 2016. “A Parametric Study on Steel Dome Structures”, International Journal For Technological Research In Engineering, 4(2).
7. Jorissen, A. 1989. “Wooden Domes”. In Commission of the Eurepean Communities Industrial Processes. Building and Civil Engineering Timber Structures. Commision of the European Communities, V.4.
8. Kollmann, F.F.P, Kuenzi, E.W., Stamm, A.J. 1975. Principles of Wood Science and Technology: II Wood Based Materials, Springer-Verlag, Berlin, 691 p.

9. Kurrer, K. E. 2018. The History of the Theory of Structures: Searching for Equilibrium, Ernst & Sohn; 2nd Ed., Berlin, Germany, 1212 p.
10. Melaragno, M. 1991. An Introduction To Shell Structures: The Art And Science of Vaulting, Van Nostrand Reinhold, N.Y, 429 p.
11. Misztal, B. 2017. Wooden Domes: History and Modern Times, Springer; 1st Ed., Switzerland,249 p.
12. Miyazaki, T., Okazaki, N., Linuma, S., Ichikawa, A. 1996. Planning and Execution of Lift-Up Construction for Roof of Large-Scale Single-Layer Latticed Dome. Proc. 13th International Symposium on Automation and Robotics in Construction, 999-1008.
13. Mongelli, A. 2006. A New Wood Roofing System: Marac’s Barracks and Colonel Armand Rose Emy’s Innovative System, Proc. of the Second International Congress on Construction History, Vol.2.
14. NAU Report, 1977. NAU’s Spectacular New Dome: Monster of the Northwoods, Arizona Sports Digest, 6-10.
15. Nahar, A.N., Aleyas, B. 2017. “Buckling Analysis and Parametric Study of Hemispherical and Pointed Domes with Lamella and Diamatic Configuration” International Research Journal of Advanced Engineering and Science, 2(2): 131-134.
16. Nordström, L., Orstadius, A. 2014. “Design of Timber Structures in a Parametric Environment: Exploration of an Alternative Design Process” MSc Thesis, Programme Architecture and Engineering, Gothenburg, Sweden.
17. Segal, E. M., Adriaenssens, S. 2013. Norfolk Scope Arena: A US Dome with a Unique Configuration of Interior Ribs and Buttresses, Proc. International Association for Shell and Spatial Structures (IASS) Symposium,
18. Beyond the Limits of Man, 23-27 September, Wroclaw University of Technology, Poland.
19. Slavid, R. 2005. Wood Architecture, Laurence King Publication Ltd., London, U.K.
20. Verbout, T. 1991. “If It’s Built, They Will Come”, Southwest Builder, B8-B15.
21. Yan, J., Qin, F., Cao, Z., Fan, F., Mo, Y.L. 2016. “Mechanism of Coupled Instability of Single-Layer Reticulated Domes”, Engineering Structures, 114:158-170.
22. İNTERNET KAYNAĞI
23. 1. http://www.thearchitectureensemble.com/collaborations_gridshell_5.html
24. 2. http://cullinanstudio.com/project/downland-gridshell
25. 3. https://www.westernwoodstructures.com/index.php/timber-domes/
26. 4. https://www.architecturerevived.com/oguni-dome-kumamoto-japan/
27. 5. www.pinterest.com
28. 6. www.flickr.com
29. 7. https://momentum-magazin.de/de/150-jahre-schwedler-kuppel/31/
30. 8. https://roofstructures.tumblr.com/post/119917529529/history-of-the-lamella-roof
31. 9. https://www.alamy.de/stockfoto-astronomie-planetarium-zeiss-planetarium-jena-aussenansichtbauarbeiten- 19251926-additional-rights-spiel-na-24100852.html
32. 10. https://www.visit-jena.de/en/food-drink/restaurants-bistros/bauersfeld/
33. 11. https://www.pbase.com/image/103042498
34. 12. https://www.arkitektuel.com/biyosfer-montreal/
35. 13. https://www.houstonpublicmedia.org/articles/news/2018/03/20/274137/houston-astrodome-willhost- domecoming-before-undergoing-renovation/
36. 14. http://www.historic-structures.com/tx/houston/houston_astrodome4.php
37. 15. https://www.tacomadome.org/dome-info/venue-story
38. 16. www.wikipedia.org
39. 17. https://www.tacomadome.org/venue-story
40. 18. https://www.rubner.com/en/holzbau/references/reference/enel-coal-storage-brindisi-ita/
41. 19. https://www.emporis.com/buildings/258747/superior-dome-marquette-mi-usa
42. 20. http://www.spsplusarchitects.com/uploads/5/1/9/8/51987823/domes_combined.pdf
43. 21. https://www.trada.co.uk/publications/wide-span-wood-sports-structures/
44. 22.https://www.minneapolisfed.org/community/financial-and-economic-education/cpi-calculatorinformation/ consumer-price-index-1800