Structural performance of flexible freeform panels subjected to wind loads

Abstract

An increased number of hurricanes and tornadoes have been recorded worldwide in the last decade, while research efforts to reduce wind-related damage to structures become essential. Freeform architecture, which focuses on generating complex curved shapes including streamlined shapes, has recently gained interest. This study focuses on investigating the potential of kerf panels, which have unique flexibility depending on the cut patterns and densities, to generate complex shapes for façades and their performance under wind loads. To investigate the kerf panel’s potential capacity against wind loads, static and dynamic analyses were conducted for two kerf panel types with different cut densities and pre-deformed shapes. It was observed that although solid panels result in smaller displacement amplitudes, stresses, and strains in some cases, the kerf panels allow for global and local cell deformations resulting in stress reduction in various locations with the potential to reduce damage due to overstress in structures. For the pre-deformed kerf panels, it was observed that both the overall stress and strain responses in kerf cut arrangements were lower than those of the flat-shaped panels. This study shows the promise of the use of kerf panels in achieving both design flexibility and performance demands when exposed to service loadings. Considering that this newly proposed architectural configuration (design paradigm) for facades could revolutionize structural engineering by pushing complex freeform shapes to a standard practice that intertwines aesthetic arguments, building performance requirements, and material design considerations has the potential for significant practical applications.

Graphical abstract

Keywords

freeform structure / kerfing method / wind load analysis / cladding component

References

[1] Boustan L P, Kahn M E, Rhode P W, Yanguas M L. The effect of natural disasters on economic activity in US counties: A century of data. Journal of Urban Economics, 2020, 118: 103257

[2] Koliou M, van de Lindt J W. Development of building restoration functions for use in community recovery planning to tornadoes. Natural Hazards Review, 2020, 21(2): 04020004

[3] Raker E J. Natural hazards, disasters, and demographic change: The case of severe tornadoes in the United States, 1980–2010. Demography, 2020, 57(2): 653–674

[4] ReevesR. Economic losses and extreme tornado events. Thesis for the Master’s Degree. Columbia, SC: University of South Carolina, 2015

[5] Simmons K M, Sutter D, Pielke R. Normalized tornado damage in the United States: 1950–2011. Environmental Hazards, 2013, 12(2): 132–147

[6] NOAA. State of the Climate: Hurricanes and Tropical Storms for Annual 2019. 2020. Available at the website of NOAA

[7] NOAA. State of the Climate: Tornadoes for Annual 2019. 2020. Available at the website of NOAA

[8] EPA. Climate Change Indicators: Tropical Cyclone Activity. 2016. Available at the website of EPA

[9] BlakeE SRappaport E NJarrellJ DLandseaC. The Deadliest, Costliest, and Most Intense United States Tropical Cyclones from 1851 to 2004 (and Other Frequently Requested Hurricane Facts). NOAA Technical Memorandum NWS TPC-4. 2005

[10] NOAA. Billion-Dollar Weather and Climate Disasters. 2020. Available at the website of NOAA

[11] NOAA. The 25 Deadliest U.S. Tornadoes. 2022. Available at the website of NOAA

[12] Standohar-Alfano C D, van de Lindt J W. Tornado risk analysis for residential wood-frame roof damage across the United States. Journal of Structural Engineering, 2016, 142(1): 04015099

[13] Simmons K M, Kovacs P, Kopp G A. Tornado damage mitigation: Benefit-cost analysis of enhanced building codes in Oklahoma. Weather, Climate, and Society, 2015, 7(2): 169–178

[14] Simmons K M, Kovacs P, Smith A B. State-by-state analysis of benefits to cost from wind-enhanced building codes. Natural Hazards Review, 2020, 21(2): 04020007

[15] Amini M O, van de Lindt J W. Quantitative insight into rational tornado design wind speeds for residential wood-frame structures using fragility approach. Journal of Structural Engineering, 2014, 140(7): 04014033

[16] Ta D T, Tran V K. Static bending analysis of symmetrical three-layer FGM beam with shear connectors under static load. Journal of Science and Technology, 2020, 15(3): 213

[17] Doan T L, Nguyen T G. Dynamic analysis of the laminated composite plate resting on two-parameter elastic foundation subjected to moving mass using finite element method. Journal of Science and Technology, 2019, 14(1): 467

[18] Dung N T, Minh P V, Hung H M, Tien D M. The third-order shear deformation theory for modeling the static bending and dynamic responses of piezoelectric bidirectional functionally graded plates. Advances in Materials Science and Engineering, 2021, 2021: 1–15

[19] Phung M V, Nguyen D T, Doan L T, Nguyen D V, Duong T V. Numerical investigation on static bending and free vibration responses of two-layer variable thickness plates with shear connectors. Iranian Journal of Science and Technology. Transaction of Mechanical Engineering, 2022, 46(4): 1047–1065

[20] Chan C M, Huang M, Kwok K C. Integrated wind load analysis and stiffness optimization of tall buildings with 3D modes. Engineering Structures, 2010, 32(5): 1252–1261

[21] AnG. Integrated wind load combination and stiffness design optimization of irregular tall buildings. Thesis for the Master’s Degree. Hong Kong, China: Hong Kong University of Science and Technology, 2016

[22] Chen Z, Chui Y H. Lateral load-resisting system using mass timber panel for high-rise buildings. Frontiers in Built Environment, 2017, 3: 40

[23] Saaed T E, Nikolakopoulos G, Jonasson J E, Hedlund H. A state-of-the-art review of structural control systems. Journal of Vibration and Control, 2015, 21(5): 919–937

[24] Jafari M, Alipour A. Methodologies to mitigate wind-induced vibration of tall buildings: A state-of-the-art review. Journal of Building Engineering, 2020, 33: 101582

[25] Ha J, Jung S, Baek H, Lee H, Nguyen K T. Analysis of form and space changes in design process of freeform architecture of culture-related facilities in South Korea. Architectural research, 2014, 16(4): 157–166

[26] Andrade D, Harada M, Shimada K. Framework for automatic generation of facades on free-form surfaces. Frontiers of Architectural Research, 2017, 6(3): 273–289

[27] EekhoutM. Free Form Technology from Delft. Amsterdam: IOS Press, 2016

[28] PottmannHWallner J. Geometry and freeform architecture. Mathematics and Society, 2016: 131–151

[29] PottmannHLiu YWallnerJBobenkoAWangW. Geometry of multi-layer freeform structures for architecture. In: Proceedings of SIGGRAPH07: Special Interest Group on Computer Graphics and Interactive Techniques Conference. New York: Association for Computing Machinery, 2007

[30] SonSFitrianiH KimJ TGo SKimS. Mathematical algorithms of patterns for free-form panels. In: Proceedings of the 2nd World Congress on Civil, Structural, and Environmental Engineering (CSEE’17), Orléans: AVESTIA, , 1–8 2017

[31] EigensatzMKilian MSchiftnerAMitraN JPottmannH PaulyM. Paneling architectural freeform surfaces. In: Proceedings of SIGGRAPH10: Special Interest Group on Computer Graphics and Interactive Techniques Conference. New York: Association for Computing Machinery, 2010, 1–10

[32] Mooneghi M A, Kargarmoakhar R. Aerodynamic mitigation and shape optimization of buildings. Journal of Building Engineering, 2016, 6: 225–235

[33] Sharma A, Mittal H, Gairola A. Mitigation of wind load on tall buildings through aerodynamic modifications. Journal of Building Engineering, 2018, 18: 180–194

[34] Kim K, Son K, Kim E D, Kim S. Current trends and future directions of free-form building technology. Architectural Science Review, 2015, 58(3): 230–243

[35] ChenR. Attaining desired deformations of flexible structures through mechanical and non-mechanical stimuli. Thesis for the Master’s Degree. College Station, TX: Texas A&M University, 2018, 88

[36] Zarrinmehr S, Ettehad M, Kalantar N, Borhani A, Sueda S, Akleman E. Interlocked archimedean spirals for conversion of planar rigid panels into locally flexible panels with stiffness control. Computers & Graphics, 2017, 66: 93–102

[37] Chen R, Turman C, Jiang M, Kalantar N, Moreno M, Muliana A. Mechanics of kerf patterns for creating freeform structures. Acta Mechanica, 2020, 231(9): 3499–3524

[38] KalantarNBorhani AAklemanE. Nip and tuck: A simple approach to fabricate double curved surfaces with 2D cutting. CAAD Education Fabrication, 2016, 344–337

[39] HoltermanA. Pattern kerfing for responsive wooden surfaces: A formal approach to produce flexible panels with acoustic performance. Thesis for the Master’s Degree. Delft: Delft University of Technology, 2018

[40] Guzelci O Z, Alaçam S, Bacınoğlu S Z. Three-step experimentation on embedding curvature to rigid planar materials through cut patterns. Gestão & Tecnologia de Projetos, 2017, 12(3): 93–107

[41] Shahid Z, Hubbard J E, Kalantar N, Muliana A. An investigation of the dynamic response of architectural kerf structures. Acta Mechanica, 2022, 233(1): 157–181

[42] ShahidZJohnson M SBondC GHubbardJKalantarN MulianaA. Dynamic responses of architectural kerf structures. In: Proceedings of the American Society for Composites—Thirty-Sixth Technical Conference on Composite Materials. College Station, TX: Texas A&M University, 2021

[43] ShahidZBond C GJohnsonM SHubbardJ EKalantarN MulianaA. Dynamic response of flexible viscoelastic kerf structures of freeform shapes. International Journal of Solids and Structures, 2022, 254–255: 111895

[44] DarnalAShahid ZHanJMorenoMMulianaA. Viscoelastic responses of MDF kerf structures. In: Proceedings of the American Society for Composites—Thirty-Sixth Technical Conference on Composite Materials. College Station, TX: Texas A&M University, 2021

[45] BlakeE SRappaport E NJarrellJ DLandseaC. The Deadliest, Costliest, and Most Intense United States Tropical Cyclones from 1851 to 2010 (and Other Frequently Requested Hurricane Facts). NOAA Technical Memorandum NWS NHC-6. 2011

[46] SIMULIA. ABAQUS/Standard Version 6.18 Analysis User’s Manual, 2018

[47] ASCE. Minimum Design Loads for Buildings and Other Structures, ASCE 7-16. Reston, VA: ASCE, 2016

[48] He J, Pan F, Cai C, Chowdhury A, Habte F. Progressive failure analysis of low-rise timber buildings under extreme wind events using a DAD approach. Journal of Wind Engineering and Industrial Aerodynamics, 2018, 182: 101–114

[49] CLFMI. Chain Link Fence Manufacturers Institute Product Manual, 2017

[50] CLFMI. Chain Link Fence Wind Load Guide for the Selection of Line Post and Line Post Spacing, 2018

[51] Zhu Y, Wang Y, Luo Z, Han Q, Wang D. Similitude design for the vibration problems of plates and shells: A review. Frontiers of Mechanical Engineering, 2017, 12(2): 253–264

[52] Casaburo A, Petrone G, Franco F, de Rosa S. A review of similitude methods for structural engineering. Applied Mechanics Reviews, 2019, 71(3): 030802

[53] HarrisH GSabnis G. Structural Modeling and Experimental Techniques. Boca Raton, FL: CRC Press, 1999

[54] HeJ. System nonlinear performance of low-rise buildings under database-assisted hurricane loads. Dissertation for the Doctoral Degree. Baton Rouge, LA: Louisiana State University, 2018

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