Computer-Aided Panoramic Images Enriched by Shadow Construction on a Prism and Pyramid Polyhedral Surface

2019

Buildings

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The correlation of the architectural form and the structural system should be the basis for rational shaping. This paper presents algorithmic-aided shaping curvilinear steel bar structures for roofs, using modern digital tools, working in the environment of Rhinoceros 3D. The proposed method consists of placing the structural nodes of the shaped bar structure on the so-called base surface. As the base surface, the minimal surfaces with favorable mechanical properties were used. These surfaces were obtained in two optimization methods, due to both the structural and functional requirements. One of the methods used was the so-called form-finding method. It wasalso analyzed the amount of shadow produced by the roof and the adjacent building complex, during a certain research period, to find the roof’s optimal shape. The structure of the optimal shape was then subjected to structural analysis and its members were dimensioned. The dimensioning was carried out for two bar cross-sections, and as the optimization criterion, the smallest structure’s mass was used. The presented research aims to show how it is possible to use generative shaping tools, so as not to block the creative process, to obtain effective, responsive structural forms, that meet both architectural and structural requirements.

Section: Analysis Of the Shadow Created By A Set Of Connected Buildingsmentioning

confidence: 99%

Rationalized Algorithmic-Aided Shaping a Responsive Curvilinear Steel Bar Structure

2019

Buildings

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“…Our method is different and shows the possibility of reconstructing a building depicted by means of two-point perspective. It is a continuation of the authors' earlier deliberations on the development of a computer-aided direct method for the construction of perspective and the construction of panorama images on unfolded surfaces [22][23][24][25][26], as well as the possibility of reconstructing these mappings with computer aid [27][28][29]. However, the aim of the article is to present two completely different methods for the reconstruction of the same building, as well as their comparison and evaluation.…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of Historic Monuments—A Dual Approach

Prokop

2022

Sustainability

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The proper maintenance of historical monuments and their use is one of the pillars of sustainable development. Over the years, historic architectural buildings have undergone numerous changes resulting from reconstruction, expansion, or damage caused both by natural and other disasters. Therefore, their contemporary appearance is the result of these changes. Thanks to the documentation of their transformations, one has the opportunity to get to know their history. Currently, thanks to advanced technology, it is becoming easier and easier to document various historical monuments. However, the method of their documentation, especially the possibility of their reconstruction and the creation of 3D models depends mostly on the data resources at one’s disposal. This article compares two extreme methods of recreating an architectural object that has undergone some changes throughout history. One of the methods is to reconstruct the object on the basis of a photograph using geometrical rules and computer aid, while the other is based on laser scanning. Due to the fact that the same object is being reconstructed by means of both methods, it is possible to evaluate and compare the applied methods and estimate their accuracy, as well as to draw conclusions about the transformations of the reconstructed object over the years.

“…The method of shaping structures depends also on the design tools used, the applicability of which changes with the development of technology [ 29 ]. Commonly used CAD (computer-aided design) tools enable the generating of virtual models, their visualization, as well as the creation of their two-dimensional documentation [ 30 , 31 , 32 ]. However, the further development of other digital design tools, as well as the integration of various modeling methods, has facilitated and simplified cooperation in various design fields [ 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Shaping of Curvilinear Steel Bar Structures for Variable Environmental Conditions Using Genetic Algorithms—Moving towards Sustainability

2021

Materials

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The successful and effective shaping of curvilinear steel bar structures is becoming an increasingly complex and difficult task, due to the growing demands to satisfy both economic and environmental requirements. However, computer software for algorithmic-aided design makes it possible to take into account many aspects affecting structures, as early as the initial design stage. In this context, the paper presents an optimization method for shaping the curvilinear steel bar canopies of hyperbolic paraboloid and cylindroid shapes, in order to obtain effective structures adapted to external environmental conditions. The best structural solutions in terms of the structure’s shape, topology and support positions are obtained as the effects of multi-criteria optimizations with the application of genetic algorithms. The following are used as the optimization criteria: minimal structure mass and minimal deflections of the structure’s members, as well as their maximal utilization. Additionally, the best canopy locations in relation to the sides of the world are determined through analyzing their shadow casts for various locations, so the structures have the least impact on the surroundings. This research, with its interdisciplinary character, aims to present the possibility of applying generative shaping tools to obtain structurally effective and environment-adaptive curvilinear steel bar structures in the first phase of their design, which can support sustainable designing.