Simultaneous sizing, shape, and layout optimization and automatic member grouping of dome structures

Carvalho, José Pedro Gonçalves; Lemonge, Afonso C. C.; Hallak, Patrícia H.; Vargas, Dênis E. C.

doi:10.1016/j.istruc.2020.10.016

Cited by 18 publications

(5 citation statements)

References 56 publications

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“…Although dome structures are economical in terms of consumption of construction materials compared to the conventional forms of structures [ 27 ], a more lightweight design can be obtained using optimisation methods. The optimum solution of the geometry design was obtained by Saka [ 28 ], Kaveh and Talatahari [ 29 ], Carvalho et al [ 30 ], Saka and Carbas [ 31 ], Gholizadeh and Barati [ 32 ], Kaveh and Rezaei [ 33 , 34 ], Kaveh et al [ 35 ], and Ye and Lu [ 36 ]. Other structures were analysed from the economical aspect, e.g., bridge [ 37 , 38 ], but in these cases, the methods and reasons of optimisation were totally different.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Steel Geodesic Dome under Seismic Excitations

Pilarska

Maleska

2021

Materials

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The paper presents the response of two geodesic domes under seismic excitations. The structures subjected to seismic analysis were created by two different methods of subdividing spherical triangles (the original octahedron face), as proposed by Fuliński. These structures are characterised by the similar number of elements. The structures are made of steel, which is a material that undoubtedly gives lightness to structures and allows large spans. Designing steel domes is currently a challenge for constructors, as well as architects, who take into account their aesthetic considerations. The analysis was carried out using the finite element method of the numerical program. The two designed domes were analysed using four different seismic excitations. The analysis shows what influence particular earthquakes have on the geodesic dome structures by two different methods. The study analysed the maximum displacements, axial forces, velocities, and accelerations of the designed domes. In addition, the Time History method was used for the analysis, which enabled the analysis of the structure in the time domain. The study will be helpful in designing new structures in seismic areas and in assessing the strength of various geodesic dome structures under seismic excitation.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Steel Geodesic Dome under Seismic Excitations

Pilarska

Maleska

2021

Materials

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“…Several recent studies have calculated the optimal geometry for this type of singlelayer architecture and its algorithm [54], or have studied its optimisation in the face of earthquakes [64]. In the field of structures, this type of architecture has been extensively studied [65][66][67][68]. However, in the residential field, due to their thermal characteristics, domes have a great potential that has yet to be studied.…”

Section: Morphological Analysis Of the Geodesic Domementioning

confidence: 99%

Energy Benefits of Tourist Accommodation Using Geodesic Domes

González-Avilés,

Pérez-Carramiñana,

Galiano-Garrigós

et al. 2024

Buildings

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Over the last decade there has been a proliferation of glamping architecture. This study analyses the energy performance of geodesic domes for use in tourist glamping compared to more conventional prismatic architectural solutions. The energy analysis of geodesic domes applied to this type of singular construction project currently lacks detailed studies that provide conclusions about their relevance and suitability with respect to other types of architecture. The main objective of this research is to demonstrate the energy benefits of tourist accommodations that use geodesic structures compared to those with a simple geometry. A comparative study of a traditional and a geodesic geometry accommodation is carried out, considering that they share the same characteristics and they are built with the same construction solution. An energy simulation of both architectures is carried out by using DesignBuilder software. The most influential strategies, such as Direct Passive Solar Gain, Heating, Natural Ventilation Cooling, Fan-Forced Ventilation Cooling and Window Solar Shading are considered. After demonstrating the greater efficiency of geodesic domes, this study analyses the relevance of subdividing the accommodations into several geodesic dome spaces. The results quantify an energy benefit of 52% for cooling consumption using the geodesic dome solution compared to a traditional prismatic solution.

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“…Recently, the authors in [ 14 , 15 , 16 , 17 , 18 , 19 ] used different approaches to add a cardinality constraint to truss optimization models. Researchers in [ 14 ] considered static loading problems by applying buckling constraints to compressed bars for sizing optimization.…”

Section: Introductionmentioning

confidence: 99%

Effects of Limiting the Number of Different Cross-Sections Used in Statically Loaded Truss Sizing and Shape Optimization

Kostić,

Petrović,

Marjanović

et al. 2024

Materials

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This research aims to show the effects of adding cardinality constraints to limit the number of different cross-sections used in simultaneous sizing and shape optimization of truss structures. The optimal solutions for sizing and shape optimized trusses result in a generally high, and impractical, number of different cross-sections being used. This paper presents the influence of constraining the number of different cross-sections used on the optimal results to bring the scientific results closer to the applicable results. The savings achieved using the cardinality constraint are expected to manifest in more than just the minimization of weight but in all the other aspects of truss construction, such as labor, assembly time, total weld length, surface area to be treated, transport, logistics, and so on. It is expected that the optimal weight of the structures would be greater than when not using this constraint; however, it would still be below conventionally sized structures and have the added benefits derived from the simplicity and elegance of the solution. The results of standard test examples for each different cardinality constraint value are shown and compared to the same examples using only a single cross-section on all bars and the overall optimal solution, which does not have the cardinality constraint. An additional comparison is made with results of just the sizing optimization from previously published research where authors first used the same cardinality constraint.

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Simultaneous sizing, shape, and layout optimization and automatic member grouping of dome structures

Cited by 18 publications

References 56 publications

Numerical Analysis of Steel Geodesic Dome under Seismic Excitations

Numerical Analysis of Steel Geodesic Dome under Seismic Excitations

Energy Benefits of Tourist Accommodation Using Geodesic Domes

Effects of Limiting the Number of Different Cross-Sections Used in Statically Loaded Truss Sizing and Shape Optimization

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