Uzay kafes yapılarının sismik performansının doğrusal olmayan statik ve zaman-tarih analizleri ile değerlendirilmesi

Year 2025, Volume: 14 Issue: 2, 659 - 667, 15.04.2025

Fooad Karimi Ghaleh Jough , Sasan Babaei

Abstract

Uzay kafes yapıları, yüksek taşıma verimliliği, hafif yapısı ve geniş açıklıklı uygulamalara uygunluğu nedeniyle modern mimari ve mühendislikte yaygın olarak kullanılmaktadır. Bu çalışmanın amacı, bir sonlu elemanlar yazılımı olan ABAQUS programı kullanılarak, doğrusal olmayan statik ve zaman-tanım alanında analizler ile modellenen uzay kafes yapıların sismik tepkisini değerlendirmektedir. Farklı açıklıklı, yükseklikte ve kolon düzenlemelerine sahip yapılar sismik yükler altında analiz edilmiştir. Yapısal sistem davranış katsayısı (R), süneklik temelli azalma, aşırı dayanım ve izin verilen gerilme faktörleri açısından değerlendirilmiş olup, 2.6 ile 3.8 arasında değiştiği belirlenmiştir. Sonuçlar, yapısal sünekliğin zaman tanım alanında değişen tepkileri ile davranış faktörünü belirlemede kritik bir rol oynadığını ve farklı yapısal değişiklikler altında önemli farklılıklar gösterdiğini ortaya koymaktadır. Kolon sayısının artırılması bu faktörü iyileştirirken, düşük katlı modellerin süneklik davranışında azalma gözlemlenmiştir. Zaman-tanım alanında analizler, taban kesme kuvvetlerinin benzer aralıklarda kaldığını fakat frekans içeriğine duyarlı olduğunu göstermektedir. Ayrıca, kat yüksekliğinin artması, maksimum çatı katı yer değiştirmesinde önemli bir artışa neden olarak yüksekliğin sismik performans ve dinamik koşullardaki yapısal stabilite üzerindeki etkisini önemli ölçüde değiştirdiği vurgulanmıştır.

Keywords

Uzay kafes yapıları, tepki değişim faktörü, ABAQUS, zaman-tarih analizi, sonlu elemanlar modellemes

Seismic performance evaluation of space-frame structures using nonlinear static and time-history analyses

Abstract

Space-frame structures are extensively used in modern architecture and engineering due to their high load-bearing efficiency, lightweight nature, and suitability for large-span applications. This study assesses their seismic response through nonlinear static and time-history analyses using finite element modeling in ABAQUS. Various configurations with different spans, heights, and column arrangements were analyzed under seismic loads. The response modification factor (R) was evaluated concerning ductility-based reduction, overstrength, and allowable stress factors, ranging from 2.6 to 3.8. Results indicate that structural ductility plays a crucial role in determining the Response modification factor, with notable variations across different configurations. Increasing the number of columns improves this factor, whereas low-story models exhibit reduced ductile behavior. Time-history analysis reveals that base shear values remain within a similar range but are sensitive to frequency content. Additionally, increasing the story height leads to a significant rise in maximum roof displacement, highlighting the influence of height on seismic performance and structural stability in dynamic conditions.

Keywords

Space-frame structures, response modification factor, ABAQUS, time-history analysis, finite element modeling

References

• T. Takeuchi, H. Nakayama, and T. Ogawa, Buckling and seismic response of grid shell with cylindrical joints. Proceedings of IASS Symposium, 2011.
• K. J. Hwang, Advanced investigations of grid spatial structures considering various connection systems. University of Stuttgart, 2010.
• T. Bulenda and J. Knippers, Stability of grid shells. Computers & Structures, 79(12), 1161-1174, 2001. https://doi.org/10.1016/S0045-7949(01)00011-6.
• Wikipedia.https://en.wikipedia.org/wiki/File:Ctesiphon-ruin_1864.jpg/, Accessed. 5 January 2025.
• B. Pentcheva, Eternal victory: Byzantine territorial expansion and Constantinopolitan liturgical splendour at Hosios Loukas (Steiris, Greece). Journal of the International Society for Orthodox Music, 6(1), 1-70, 2022. https://doi.org/10.57050/jisocm.113301
• Cermex. https://www.cerm-ex.com/sabiha-gokcen-terminal/ Accessed, 4 January 2025.
• J. Sharma, J. Eppler, J. Busler, Urban Infrastructure monitoring with a spatially adaptive multi-looking InSAR technique. 113, 2015. http://www.doi.org/10.5270/Fringe2015.pp113
• Tekfen Holding. https://www.tekfenmuhendislik.com/ istanbul-ataturk-stadium/, Accessed. 5 January 2025.
• K. Gidófalvy, Effect of connection rigidity on the behaviour of single-layer steel grid shells. presented at the Conference: Proceedings of the Conference of Junior Researchers in Civil Engineering, Budapest, Hungary, 2012.
• Y. Liu, T.-U. Lee, A. Koronaki, N. Pietroni, and Y. M. Xie, Reducing the number of different nodes in space frame structures through clustering and optimization. Engineering Structures, 284, 116016, 2023: https://doi.org/10.1016/j.engstruct.2023.116016.
• M. Sattar, N. U. Rehman, and N. Ahmad, Design, kinematics and dynamic analysis of a novel double – scissors link deployable mechanism for space antenna truss, Results in Engineering, 22, 102251, 2024. https://doi.org/10.1016/j.rineng.2024.102251.
• R. Hou, J. L. Beck, X. Zhou, and Y. Xia, Structural damage detection of space frame structures with semi-rigid connections. Engineering Structures, 235, 112029, 2021. https://doi.org/10.1016/j.engstruct.2021.112029.
• S. Babaei, P. Zarfam, A. Sarvghad Moghadam, and S. M. Zahrai, Assessment of a dual isolation system with base and vertical isolation of the upper portion. (in Korean), Structural Engineering and Mechanics, 88(3), 263-271, 2023. https://doi.org/10.12989/ sem.2023.88.3.263.
• R. Mesnil, C. Douthe, O. Baverel, and B. Léger, Linear buckling of quadrangular and kagome gridshells: A comparative assessment. Engineering Structures, 132, 337-348, 2017, https://doi.org/10.1016/ j.engstruct.2016.11.039.
• F. Ruo-qiang, Y. Bin, and Y. Jihong, Stability of lamella cylinder cable-braced grid shells. Journal of Constructional Steel Research, 88, 220-230, 2013: https://doi.org/10.1016/j.jcsr.2013.05.019.
• D. Naicu, R. Harris, and C. Williams, Timber Gridshells: Design methods and their application to a temporary pavilion. presented at the World Conference on Timber Engineering (WCTE), Canada, 2014.
• B. Etaati et al., Shape and sizing optimization of space truss structures using a new cooperative coevolutionary-based algorithm. Results in Engineering, 21, 101859, 2024, https://doi.org/10.1016/j.rineng.2024.101859.
• D. Zhu, X. Yan, J. Sun, F. Liu, and D. Cao, An improved equivalent beam model of large periodic beam-like space truss structures. Chinese Journal of Aeronautics, 36(12), 297-308, 2023. https://doi.org/10.1016/j.cja.2023.06.034.
• S. Babaei and F. Karimi Ghaleh Jough, Parametric Study of Vertically Isolated Steel Braced Frames Controlled by Shape Memory Alloys. Journal of Applied Engineering Sciences, 14(2), 194-201, 2024. https://doi.org/10.2478/jaes-2024-0024
• S. Babaei and F. Karimi Ghaleh Jough, A comprehensive evaluation of tuned vertical isolation system for seismic risk mitigation. Journal of Applied Engineering Sciences, 14(1), 27-34, 2024. https://doi.org/10.2478/jaes-2024-0004.
• F. Karimi Ghaleh Jough and S. B. Beheshti Aval, Uncertainty analysis through development of seismic fragility curve for an SMRF structure using an adaptive neuro-fuzzy inference system based on fuzzy C-means algorithm. Scientia Iranica, 25(6), 2938-2953, 2018. https://doi.org/10.24200/sci.2017.4232.
• F. K. G. Jough and S. Şensoy, Prediction of seismic collapse risk of steel moment frame mid-rise structures by meta-heuristic algorithms. Earthquake Engineering and Engineering Vibration, 15(4), 743-757, 2016. https://doi.org/10.1007/s11803-016-0362-9.
• Building and Housing Research Center. Derivation of response modification factors for concrete moment resisting frames. Tasnimi A., Masoumi A., Publication No. 4361st edition.; 2006.
• S. Babaei and P. Zarfam, Optimization of shape memory alloy braces for concentrically braced steel braced frames. 9(1), 697-708, 2019. https://doi.org/10.1515/eng-2019-0084.
• F. K. G. Jough, M. Veghar, and S. B. Beheshti-Aval, Epistemic uncertainty treatment using group method of data handling algorithm in seismic collapse fragility. Latin American Journal of Solids and Structures, 18, 2021.
• F. Karımı Ghaleh Jough and B. Ghasemzadeh, Reliability prediction of SMRF based on the combination of neural network and incremental dynamic analysis. Journal of Innovations in Civil Engineering and Technology, 5(2), 91-105, December 2023. https://doi.org/10.60093/jiciviltech.1317804.
• N. Mert and A. Nzapfakumunsi, Seismic design evaluation of t shaped irregular RC building plans by using pushover analysis. Sakarya University Journal of Science, 23(2), 259-268, 2019. https://doi.org/ 10.16984/saufenbilder.471209.
• F. Kıpçak and B. Erdil, Yığma yapıların düzlem dışı davranışlarına yan duvarın ve yan duvar boşluğunun etkisi. Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 12(3), 853-860, 2023. https://doi.org/10.28948/ngumuh.1268912.
• S. Babaei, A. Habib, M. Hosseini, and U. Yildirim, Investigating the inelastic performance of a seismic code-compliant reinforced concrete hospital under long sequence of ground motions records. Sustainable Civil Engineering at the Beginning of Third Millennium, Singapore, U. Türker, Ö. Eren, and E. Uygar, Eds., Springer Nature Singapore, 364-373, 2024.
• B. Sivri and B. Temel, Değişken kesitli Timoshenko kolonlarının tamamlayıcı fonksiyonlar yöntemiyle burkulma analizi. Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 11(1), 122-128, J 2022. https://doi.org/10.28948/ngumuh.994891.
• F. Aliakbari and H. Shariatmadar, Seismic response modification factor for steel slit panel-frames. Engineering Structures, 181, 427-436, 2019. https://doi.org/10.1016/j.engstruct.2018.12.027.
• M. Jamshidi Avanaki, Response modification factors for seismic design of steel fiber reinforced concrete segmental tunnels. Construction and Building Materials, 211, 1042-1049, 2019, doi: https://doi.org/10.1016/j.conbuildmat.2019.03.275.
• V. Mohsenian, N. Gharaei-Moghaddam, and I. Hajirasouliha, Response modification factors for dual moment-resisting frames with vertical links: Multilevel approach. Advances in Structural Engineering, 24(14), 3299-3314, 2021. https://doi.org/ 10.1177/13694332211026220.
• F. Karimi Ghaleh Jough and B. Ghasemzadeh, Uncertainty interval analysis of steel moment frame by development of 3D-Fragility curves towards optimized fuzzy method. Arabian Journal for Science and Engineering, 49(4), 4813-4830, 2024. https://doi.org/10.1007/s13369-023-08223-8.