Yüksek Katlı Betonarme Binalarda Yanal Yük Dayanım Sistemleri

Öz

Verimli ve ekonomik bir yüksek bina, yapısal sistemin seçimini etkileyen önemli faktörler tam olarak anlaşılmadan ve bu sistemin mimari, mekanik ve diğer yönlerle nasıl bir ilişki içinde olacağı bilgisi olmadan tasarlanamaz. Bu çalışmada, farklı tipteki yanal yük dirençli sistemlerin (moment çerçeve sistem, perde duvarlı sistem, perdeli-çerçeveli sistem ve tüplü çerçeve sistemler) sismik yükler ve rüzgâr yükleri altında yapısal tepkilerini karşılaştırmak için bir yapısal analiz programı olan ETABS kullanılarak yapısal analizler yapılmıştır. Bina 625m² (25m x 25m) alana sahip 28 kattan oluşmaktadır. Tüm yanal yük dirençli sistemler için kat deplasmanları hesaplanmıştır. Yanal yük dirençli sistem tipleri arasında perdeli-çerçeveli sistem, bu yükseklik için çok uygun bir yapısal tepki göstermiş ve sınır değerlerini aşmamıştır.

Anahtar Kelimeler

• yanal yük dirençli sistem
• yüksek binalar
• deprem yükü
• rüzgâr yükü
• deplasmanlar

Lateral Load Resisting Systems in High-Rise Reinforced Concrete Buildings

Abstract

An efficient and economical tall building cannot be designed without a thorough understanding of the significant factors affecting the selection of the structural system and knowledge of how the structural system will interrelate with architectural, mechanical and other aspects. In this study, structural analyses were performed to compare the structural response of different types of lateral load resisting systems (moment-resisting frame system, shear wall system, dual system and framed tube system) under effect of seismic and wind loads using the structural program ETABS. The building consists of 28 stories with area of 625m² (25m x 25m). Storey displacements were evaluated for all lateral load resisting systems. Among the types of lateral load resisting systems, dual system showed a very suitable structural response for this height and did not exceed the limitation values.

Keywords

• lateral load resisting system
• high rise buildings
• earthquake load
• displacements
• wind load

References

1. Patil S.S., Konapure C.G., Ghadge S.A., (2013). Equivalent Static Analysis of High-Rise Building with Different Lateral Load Resisting Systems, International Journal of Engineering Research & Technology, 2(1), pp.1-9.
2. Kevadkar M.D., Kodag P.B. (2013). Lateral Load Analysis of R.C.C. Building, International Journal of Modern Engineering Research, 3(3), pp.1428-1434.
3. Halis M. Gunel, H. Emre Ilgin, (2007). A proposal for the classification of structural systems of tall buildings, ScienceDirect Building and Environment 42 (2007) 2667–267.
4. Suresh P, Panduranga Rao B, Kalyana Rama J.S, (2013). Influence of diagonal braces in RCC multi-storied frames under wind loads: A case study, international journal of civil and structural engineering, 3(1), 2012 pp.214-226.
5. Khan F R, "The Bearing Wall Comes of Age", Architectural and Engineering News, 10(10), 1968, pp.78-85.
6. Fitzsimmons, N., "History and Philosophy of Tall Buildings", Proceedings, International Conference on Planning and Design of Tall Buildings, Vol.1, Lehigh Univ., 1972, pp.41-52. Güneyisi E.M., Muhyaddin, G.F., “Comparative Response Assessment of Different Frames with Diagonal Bracings under Lateral Loading”, Arabian Journal for Science and Engineering, Vol. 39, pp. 3545–3558, 2014.
7. Güneyisi E.M., Ameen, N., “Structural Behavior of Conventional and Buckling Restrained Braced Frames Subjected to Near-Field Ground Motions”, Earthquakes and Structures, Vol. 7, pp. 553-570, 2014.
8. Lu Xinzheng , Lu Xiao , Guan H., Zhang W., Ye L., “Earthquake-induced collapse simulation of a super-tall mega-braced frame-core tube building”, Journal of Constructional Steel Research, 82, 2013, pp. 59–71.

9. Kamgar R , Saadatpour M.M., “A simple mathematical model for free vibration analysis of combined system consisting of framed tube, shear core, belt truss and outrigger system with geometrical discontinuities”, Applied Mathematical Modelling, 36(10), 2012, pp. 4918–4930.
10. Jinghai G., Xinhua L., (2007). Design method research into latticed shell tube– reinforced concrete (RC) core wall structures, ScienceDirect Journal of Constructional Steel Research 63 (2007) 949–960: www.elsevier.com/locate/jcsr.
11. Massumin A., Absalan M., (2012). Interaction between bracing system and moment resisting frame in braced RC frames , ScienceDirect: www.elsevier.com/locate/acme .
12. Sadjadia R., Kianousha M.R., Talebib S., (2006). Seismic performance of reinforced concrete moment resisting frames, ScienceDirect Engineering Structures 29 (2007) 2365–2380: www.elsevier.com/locate/engstruct.
13. ETABS: Static and Dynamic Finite Element Analysis of Structures, Version 15.0.0, Integrated building design software, Computers and Structures Inc., Berkeley (2015).
14. SEAOC (2009), Seismic design recommendations, Structural Engineers Association of California, Sacramento, California.
15. Khan; F.R. (1974). “New structural systems for tall buildings and their scale effects on cities”, Proceedings of Symposium held at Vanderbilt University, 67 Nashville, Tennessee, November 14-15, 99-129.
16. ASCE.7-05. Minimum Design Loads for Buildings and Other Structures. American Society of Civil Engineers, USA 2005.
17. Paulino M.R., (2010). “Preliminary Design of Tall Buildings”, M.Sc thesis, Worcester Polytchnic Institute, USA.
18. IBC. International building code. International Code Council, Inc. USA 2006.‏
19. FEMA (Federal Emergency Management Agency): NEHRP guidelines for seismic rehabilitation of buildings, FEMA-273.Washington, DC (1997).
20. FEMA (Federal Emergency Management Agency): Prestandard and commentary for the seismic rehabilitation of building, FEMA-356, Washington, DC (2000).