Investigating the effect of different materials in improving the structural performance of active bending shells by analyzing a selected sample of grid shells
Subject Areas : City architect
sahar
sadeghi
1
()
morteza
rahbar
2
(faculty of architecture, university of science and technology, tehran, iran.)
katayoun
Taghizadeh Azari
3
(گروه تکنولوژی معماری، دانشکده معماری، دانشگاه تهران، تهران، ایران)
حسین
ذبیحی
4
(مدیر گروه رشته شهرسازی دانشگاه علوم و تحقیقات تهران.)
Keywords: material, structural performance, grid shell, force analysis, algorithmic modeling,
Abstract :
Grid shell structures are one of the types of active bending structures, which consist of a network of continuous elements with double curved shells. Therefore, the purpose of this article is the effect of different materials by selecting a sample of mesh shells in improving their structural performance, for this purpose, the geometry of the selected shell was first modeled with the help of Grasshopper program and then using Kangaroo and Karamba physics modeling software in a The repetitive step at the same time, the mechanical and geometric considerations have been analyzed. In the selected sample, with the help of quantitative analytical method in Karamba software, the stresses are calculated, and then, considering the variables of materials with the same thickness and dimensions, which have a rectangular cross-section, to check the amount of displacement in bearing internal forces and stresses that The reason for the change in the weight of the structure has come about, and according to that, the Young's modulus has reached its minimum average, and the steps have been taken. In this way, it can be concluded that among the six different families of materials such as: steel, wood, concrete, steel, composite and polymers depending on the type of access and facilities in each country, polymer structures reinforced with glass fibers and structures Wood has the best structural performance for making grid shells.
[1]. Chilton, John. 2000. The Engineer’s Contribution to Contemporary, Architecture: Heinz Isler. London: Thomas Telford. Otto, Frei. 2005. Frei Otto: Complete Works: Lightweight Construction, Natural Design, edited by Winfried Nerdinger. Basel: Birkhäuser.
[2]. Pillwein S, Leimer K, Birsak M & Musialski P, "On elastic geodesic grids and their planar to spatial deployment".2020, preprint arXiv:2007.00201.
[3]. Hillersøy Dyvik S, Manum B & Rønnquist A, “Gridshells in Recent Research—A Systematic Mapping Study ".2021, Appl. Sci. 2021, 11(24)
[4]. Liddell I, "Frei Otto and the development of gridshells. Case Studies in Structural Engineering" ,2015, 4, 39-49.
[5]. JIANG, YANG, 2015. FREE Form finding of grid shell structure, Master of Science in Civil Engineering in the Graduate College of the University of Illinois at Urbana-Champaign.
[6]. Moore F, "Understanding the behavior of structures", (M. Golabchi, translator) Tehran: Tehran University Press, 2007, 213.
[7]. Du Peloux L, Baverel O, Caron J.-F & Tayeb F, "From shape to shell: a design tool to materialize freeform shapes using gridshell structures, 2013, 84.
[8]. Du Peloux L, Tayeb F, Baverel O, Caron J, 2016, Construction of a Large Composite Gridshell Structure: A Lightweight Structure Made with Pultruded Glass Fibre Reinforced Polymer Tubes, Structural Engineering International 26(2):160-167
[9]. Kookalani S, Aung HT,2023, GFRP Elastic Gridshell Structures: A Review ofMethods, Research, Applications, Opportunities, and Challenges, Journal of Civil Engineering and Materials Application, 7(2): 71-94
[10]. Golabchi M & Taghizadeh K, "Skins and folded sheet structures". Tehran: First edition, Tehran University Press, 2011, 78-80. (in Persian)
[11]. Douthe C, Baverel O, Caron J. "Form-finding of a grid shell in composite materials", Journal-International association for shell and Spatial Structures. 2006; 150:53
[12]. Gengnagel C, Lafuente E,"Active Bending in Hybrid Structures", Conference Paper Conference Proceedings IABSE - IASS Symposium Departement of Structural Design and Technology [KET] Faculty of Architecture, University of the Arts Berlin, Taller Longer, Lighter, London 2014.
[13]. Kinappers J & Shepherd P, "Structural form finding using zero-length springs with dynamic mass". 2011.
[14]. Lionhard J, Alpermann H, Gengnagel C, Knippers J, Active bending, a review on structures where bending is used as a self-formation process. International Journal of Space Structures. 2013;28(3-4):187-96.
[15]. Lienhard J, Alpermann H, Gengnagel C and Knippers J, "Active Bending, a Review on structures where bending is used as a self formation process", IASS-APCS Symposium 2012, From Spatial Structures to Space Structures, Seoul 2012.
[16] Schleicher, Simon. 2015. “Bio-Inspired Compliant Mechanisms for Architectural Design: Transferring Bending and Folding Principles of Plant Leaves to Flexible Kinetic Structures.” PhD Dissertation, University of Stuttgart.
[17]. Collins M, Cosgrove T, "A Review of the State of the Art of Timber Gridshell Design and Construction", Department of Civil Engineering and Materials Science, University of Limerick, 2016, 261.
[18]. Taghizadeh K, "Criticism and introduction of deconstruction architecture (with a review of the works of Zaha Hadid, Peter Eisenman and Frank Gehry)", Tehran University Press, Tehran, 2012, 98-100. (in Persian)
[19]. Adriaenssens S, Block P, Veenendaal D, Williams C, Shell Structures for Architecture: Form Finding and Optimization: Taylor & Francis; 2014,174-175.
[20]. Bendsoe M.P, Ben-Tal A & Zowe J, "Optimization methods for truss geometry and topology design". Structural optimization,1994, 7(3): 141-159.
[21]. Bendsoe M. P & Sigmund O,"Topology optimization: theory, methods, and applications", Springer Science & Business Media, 2013, 258.
[22]. Block Ph & Veenendaal D, "Shell Structures for Architecture", Sigrid Adriaenssens & Chris Williams, London 2014
[23]. Bulenda T & Knippers J, "Stability of grid shells. Computers & Structures", 2001,79(12): p. 1161-1174.
[24]. Celina P, "Past and Future of Grid Shell Structures", Massachusetts: Massachusetts institute of technology, 2007.
[25]. Chilton J, "Spatial Mesh Structures", translated by Mahmoud Golabchi, Tehran University Press, 2016, 165-168. (in Persian)
[26]. Eshghi K, Karimi Nasab M, "Analysis of Algorithms and Design of Metaheuristic Methods", Sharif University Publications; 2015, 24-26. (in Persian)
[27]. Fazel A, "structural design and optimization of grid shell structures based on evolutionary genetic algorithm", University of Tehran, 2012, 192-194. (in Persian)
