Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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Hits 1 to 20 of 295

Reformat results as: short short into frame detailed detailed into frame

_id	ecaade2023_259
id	ecaade2023_259
authors	Sonne-Frederiksen, Povl Filip, Larsen, Niels Martin and Buthke, Jan
year	2023
title	Point Cloud Segmentation for Building Reuse - Construction of digital twins in early phase building reuse projects
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 327–336
doi	https://doi.org/10.52842/conf.ecaade.2023.2.327
summary	Point cloud processing has come a long way in the past years. Advances in computer vision (CV) and machine learning (ML) have enabled its automated recognition and processing. However, few of those developments have made it through to the Architecture, Engineering and Construction (AEC) industry. Here, optimizing those workflows can reduce time spent on early-phase projects, which otherwise could be spent on developing innovative design solutions. Simplifying the processing of building point cloud scans makes it more accessible and therefore, usable for design, planning and decision-making. Furthermore, automated processing can also ensure that point clouds are processed consistently and accurately, reducing the potential for human error. This work is part of a larger effort to optimize early-phase design processes to promote the reuse of vacant buildings. It focuses on technical solutions to automate the reconstruction of point clouds into a digital twin as a simplified solid 3D element model. In this paper, various ML approaches, among others KPConv Thomas et al. (2019), ShapeConv Cao et al. (2021) and Mask-RCNN He et al. (2017), are compared in their ability to apply semantic as well as instance segmentation to point clouds. Further it relies on the S3DIS Armeni et al. (2017), NYU v2 Silberman et al. (2012) and Matterport Ramakrishnan et al. (2021) data sets for training. Here, the authors aim to establish a workflow that reduces the effort for users to process their point clouds and obtain object-based models. The findings of this research show that although pure point cloud-based ML models enable a greater degree of flexibility, they incur a high computational cost. We found, that using RGB-D images for classifications and segmentation simplifies the complexity of the ML model but leads to additional requirements for the data set. These can be mitigated in the initial process of capturing the building or by extracting the depth data from the point cloud.
keywords	Point Clouds, Machine Learning, Segmentation, Reuse, Digital Twins
series	eCAADe
email
last changed	2023/12/10 10:49

_id	caadria2012_120
id	caadria2012_120
authors	Fukuda, Tomohiro; Tian Zhang, Ayako Shimizu, Masaharu Taguchi, Lei Sun and Nobuyoshi Yabuki
year	2012
title	SOAR: Sensor oriented mobile augmented reality for urban landscape assessment
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 387–396
doi	https://doi.org/10.52842/conf.caadria.2012.387
summary	This research presents the development of a sensor oriented mobile AR system which realises geometric consistency using GPS, a gyroscope and a video camera which are mounted in a smartphone for urban landscape assessment. A low cost AR system with high flexibility is realised. Consistency of the viewing angle of a video camera and a CG virtual camera, and geometric consistency between a video image and 3DCG are verified. In conclusion, the proposed system was evaluated as feasible and effective.
keywords	Landscape assessment; augmented reality; mobile device; geometric consistency; GPS
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	sigradi2012_167
id	sigradi2012_167
authors	Gutiérrez, Nicolás Sáez
year	2012
title	Ejercicio de arte fotográfico. Reconstrucción de una vivencia espacial a través de una percepción inmersiva de la imagen (Fotografía) - escena (Arquitectura) [A photographic art exercise. Reconstruction of a spatial experience through an immersive perception of image (photography) - scene (architecture)]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 373-377
summary	This work constitutes one of the main lines of visual exploration derived from the photographic work done by the author. As an architect that makes and investigates photography, his exercises of art study the translations from visual perception of architectonic space to its photographic simulation, work that so far has only been done and exhibited in large format. The work here presented is based on projects undertaken from 2007 to 2010 and mainly elaborates on a recent project to be soon exhibited in Concepción between January and March 2013.
keywords	Fotografía de autor; percepción visual; inmersión virtual; espacio de exhibición; realidad aumentada
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	caadria2012_058
id	caadria2012_058
authors	Matthews, Linda and Gavin Perin
year	2012
title	Materialising the pixel: A productive synergy
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 475–484
doi	https://doi.org/10.52842/conf.caadria.2012.475
summary	The composite photoreceptive field of the human eye receives photons emitted from a source and converts this energy into image information within the brain. The internal mechanisms of the contemporary camera imaging technologies represent yet another in a long history of attempts to technically replicate this procedure. The critical difference between the capacity of the human eye to receive quanta events or photons and that of a camera transmitting to a digital display device, rests in how much of the original signal can be recovered. This paper aims to show how the ‘information deficit’ associated with this technological conversion can be enhanced by the deliberate exploitation and re-arrangement of the camera’s image sensor mechanism. The paper will discuss how the mapping of pixel grid geometries and colour filter array patterns at the vastly increased scale of building façades, imparts a materiality to urban form that modifies the visibility and performance of the corresponding virtual screen image. The exploration of the material adaptation of pixel geometries leads to a new technique that extends the working gamut of pixel-based RGB colour space and both establishes an index to develop material performance criteria and modifies the limitations of traditional viewing technologies.
keywords	Pixels; sensor; CCTV; imaging; array; façades
series	CAADRIA
email
last changed	2022/06/07 07:58

_id	ecaade2012_298
id	ecaade2012_298
authors	Zarzycki, Andrzej
year	2012
title	Urban Games: Inhabiting Real and Virtual Cities
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 755-764.
doi	https://doi.org/10.52842/conf.ecaade.2012.1.755
wos	WOS:000330322400080
summary	Virtual environments, originally seen as less-than-perfect replicas of physical world, acquire their own identity with unique visual and spatial logic. Identity that now starts permeating back into everyday life and informing what is expected or acceptable within physical reality. The distinction between the actual and virtual fades when seen through the screen of a smartphone, experienced through a navigational system of the video game console, or manifested by media rich culture often confusing a product with an image. The paper considers massive multiplayer online role playing games (MMORPG) as the analogy to an urban ritual/happening and places AR in the broader context of the mobility-on-demand culture, location-based and ubiquitous technologies, and the authoring of the public realm. It also explores how we can take an advantage of the urban mobility for crowd sourcing, social networking, and multi-player gaming as well as non-normative use of public spaces.
keywords	Interactive environments: Video games: Electronic social networks: Massive Multiplayer Online (MMO) Games: Virtual Urbanism
series	eCAADe
email
last changed	2022/06/07 07:57

_id	ijac201210203
id	ijac201210203
authors	Abdelhameed, Wael A.
year	2012
title	Micro-Simulation Function to Display Textual Data in Virtual Reality
source	International Journal of Architectural Computing vol. 10 - no. 2, 205-218
summary	Virtual reality creates an effective communication platform with a high degree of perception and exploration, increasing the benefits of VR applied functions.This research paper reports a virtual reality function of using the micro-simulation editor-player with XML file in the virtual reality environment.The details of the function are presented.The function aiming at combining visual and textual data in VR model visualisation, was developed by the researcher, and was included in the micro-simulation plug-in of a virtual reality program,VR Studio version 6, previously known as UC-Win/Road, by the program developers.The research paper discusses the computer simulation techniques and uses in virtual reality in general.The research paper proceeds to introduce a case study of construction process visualization in the virtual reality environment, in which the newly developed function is utilized to simultaneously visualise data reports related to the stages of VR model visualisation.The concluding remarks accentuate this micro-simulation function with its potential uses in different fields.
keywords	Micro-Simulation, XML,Virtual Reality, Construction Process Visualisation
series	journal
last changed	2019/05/24 09:55

_id	ecaade2012_161
id	ecaade2012_161
authors	Araujo, Bruno; Jorge, Joaquim; Duarte, Jose
year	2012
title	Combining Virtual Environments and Direct Manipulation for Architectural Modeling
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 419-428
doi	https://doi.org/10.52842/conf.ecaade.2012.2.419
wos	WOS:000330320600044
summary	In this paper we present an environment for conceptual design which mimicsthe interaction of designers with physical mockups. We present novel three dimensional on-and-above-the-surface interactive techniques which combine asymmetric bimanual operations with multi-touch direct manipulation on a fl at surface and depth cameras. These take advantage of a continuous interaction space to create and edit 3D models in a stereoscopic environment. To allow modeling architectural shapes directly, we combine hand and finger tracking in the space above the table with multi-touch on its surface without the need to change modes. This provides an alternative design environment where users can seamlessly switch between interacting on the surface or in the space above it depending on the task, which makes it easier to model complex shapes using simple operations.
keywords	3D Modeling; 3D User Interfaces; Virtual Reality; Procedural Modeling
series	eCAADe
email
last changed	2022/06/07 07:55

_id	ecaade2012_243
id	ecaade2012_243
authors	Araya, Sergio; Zolotovsky, Ekaterina; Gidekel, Manuel
year	2012
title	Living Architecture: Micro Performances of Bio Fabrication
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 447-457
doi	https://doi.org/10.52842/conf.ecaade.2012.2.447
wos	WOS:000330320600047
summary	This ongoing research study explores novel modes of design and fabrication by combining digital tools and technologies with living biological systems within controlled environments in order to induce specifi c biological functions and material production processes. The main objective is to design and implement a biological fabrication technique, using bacteria, to produce physical components for architecture and product design.
keywords	Synthetic Biology; Architecture; Design; Biofabrication; Biomaterial
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2012_60
id	ecaade2012_60
authors	Dierichs, Karola; Menges Achim
year	2012
title	Material and Machine Computation of Designed Granular Matter: Rigid-Body Dynamics Simulations as a Design Tool for Robotically-Poured Aggregate Structures Consisting of Polygonal Concave Particles
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 711-719
doi	https://doi.org/10.52842/conf.ecaade.2012.2.711
wos	WOS:000330320600076
summary	Loose granulates are a relevant yet rarely deployed architectural material system. Their significance lies in their capacity to combine fluid-like amorphousness with solid-like rigidity, resulting in potential architectural structures capable of continuous reconfi guration. In addition aggregates allow for functional grading. Especially if custom designed concave particles are used, full-scale architectural structures can be poured using a six-axis industrial robot, combining the precise travel of the emitter-head with the self-organizational capacity of granular substances. In this context, the paper proposes Rigid-Body Dynamics (RBD) simulations as a design-tool for the robotic pouring of loose granular structures. The notions of material and machine computation are introduced and RBD is explained in greater detail. A set of small tests is conducted to investigate the advantages and disadvantages of a specifi c RBD software. Conclusively, further areas of research are outlined.
keywords	Material and machine computation; aggregate architectures; designed granulates; robotic pouring; Rigid-Body Dynamics
series	eCAADe
email
last changed	2022/06/07 07:55

_id	ecaade2012_147
id	ecaade2012_147
authors	Huang, Yinghsiu; Hsieh, Kai-Wei; Chen, Huan-Nian
year	2012
title	The Emotional Design by Combining Interactive Technologies and Imaginations
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 361-368
doi	https://doi.org/10.52842/conf.ecaade.2012.2.361
wos	WOS:000330320600037
summary	In product design domain, designers have to deal with not only the interface between human and hardware, but also the emotions while using products. However, imagination is an important ability in all design stages. How designers could combine interactive devices and emotions with their imaginations is the main problem of this research. At the end of this paper, the result will demonstrate an interactive and emotional design by combining some sensors to receive the usage from people, and some reactions to express products’ emotions. By wiring photosensitive resistor, pressure sensor, red LED, speakers, and programing in ARDUINO, this study assembled an emotional alarm, which can express his angry emotions by different levels of noise, lighting, and shocking. In this study, we conducted a workshop not only for combining interactive sensors into products, but also for expressing emotions in viewpoints from products. During this workshop, students have to trigger their imaginations for conceiving emotional products, which they have never seen and thought of.
keywords	Imagination; product design; emotional; interactive design; ARDUINO
series	eCAADe
email
last changed	2022/06/07 07:50

_id	caadria2017_142
id	caadria2017_142
authors	Kaijima, Sawako, Tan, Ying Yi and Lee, Tat Lin
year	2017
title	Functionally Graded Architectural Detailing using Multi-Material Additive Manufacturing
source	P. Janssen, P. Loh, A. Raonic, M. A. Schnabel (eds.), Protocols, Flows, and Glitches - Proceedings of the 22nd CAADRIA Conference, Xi'an Jiaotong-Liverpool University, Suzhou, China, 5-8 April 2017, pp. 427-436
doi	https://doi.org/10.52842/conf.caadria.2017.427
summary	The paper presents a future architectural detailing strategy enabled by the design of functionally graded materials (FGM). In specific, our proposal suggests the possibility of removing mechanical fasteners and adhesives from joint details. This is achieved by combining the principles of interlocking joineries found in traditional timber structures and current Multi-Material Additive Manufacturing (MMAM) technology to materialise FGMs. FGM belongs to a class of advanced materials characterised by variation in properties as the dimension varies by combining two or more materials at a microscopic scale (Mahamood et al. 2012). FGM is ubiquitous in nature and, when properly designed, can exhibit superior performance characteristics compared to objects comprised of homogeneous material properties. With the aim of developing interlocking details with improved performance, reliability, and design flexibility, we focus on controlling material stiffness, joint fitting, and geometry through the design of the microscopic material layout. A case study design will be presented to illustrate the process.
keywords	Functionality Graded Material; Multi-Material Additive Manufacturing ; Architectural Detailing; Interlocking Joints
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	ecaade2015_161
id	ecaade2015_161
authors	Papasarantou, Chrissa; Kalaouzis, Giorgos, Pentazou, Ioulia and Bourdakis, Vassilis
year	2015
title	A Spatio-Temporal 3D Representation of a Historic Dataset
source	Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 1, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 701-708
doi	https://doi.org/10.52842/conf.ecaade.2015.1.701
wos	WOS:000372317300076
summary	Previous research (Bourdakis et al, 2012; Papasarantou et al, 2013) dealt with the problem of creating information visualisation systems capable of combining historical data of MUCIV's database and developing strategies that embed the non-spatial data in spatial models. The database was primarily designed as an experimental flexible spatio-temporal configuration of dynamic visual structures generating a variety of narrations through interaction.The attempt of producing a legible configuration driven by a number of criteria, led to the proposition of two different arrangements, namely the linear and radial array. The aim of this paper is to present the next step on the visualization after redefining both the way that thematic axes and data are visualized and arranged/scattered. Alternate configurations are investigated, based also on theoretical analysis on the conceptualization and perception of information visualization systems (Card et al 1999, Ware, 2004).
series	eCAADe
email
more	https://mh-engage.ltcc.tuwien.ac.at/engage/ui/watch.html?id=74178dba-702a-11e5-aa5b-67bfe1e6502f
last changed	2022/06/07 08:00

_id	ecaade2012_025
id	ecaade2012_025
authors	Tonn, Christian ; Tatarin, René
year	2012
title	Volume Rendering in Architecture: Overlapping and combining 3d voxel volume data with 3d building models
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 719-726.
doi	https://doi.org/10.52842/conf.ecaade.2012.1.719
wos	WOS:000330322400076
summary	Volume rendering is an illustration technique for visualising different 3D measured data or 3D simulation data interactively on screen. This paper introduces a method that overlays several types of volume data on an architectural surface model. This complex calculation takes place on the graphics card using hardware-accelerated shaders. An implemented software prototype entitled “VolumeRendering” is introduced. In addition to interactive visualisation, the objective was to create a user-friendly interface. Synergies and new evaluation possibilities arise through the overlay, e.g. of different measuring techniques, with a surface model. Finally the use of the software prototype is illustrated using examples from our interdisciplinary research project.
keywords	Multiple Volume Rendering; Overlay; 3D Surface Models
series	eCAADe
email
last changed	2022/06/07 07:58

_id	sigradi2012_106
id	sigradi2012_106
authors	da Silva, Moisés Ribeiro; Spitz, Rejane
year	2012
title	Visualização de Informação e Retórica Visual no Jornalismo Digital [Information Visualization and Visual Rhetoric on Digital Journalism]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 200-203
summary	This paper investigates the Design domain especially on information visualization production to digital media through journalism, focusing on images’ visual rhetoric and aiming at contributing to an initial global debate in view of the contemporary technologic scenario characterized by multimediality and growing popularity of interactive, portable computational devices. For that, it presents the transition between old and new media, the impact on journalism and on information visualization production by new media. It proposes a conscious and organized use of visual rhetoric for designers, with a taxonomy based on earlier researches, and analyses some case studies of information visualization produced by Brazilian and international media companies.
keywords	Visualização de informação; jornalismo digital; retórica visual; design de informação; novas mídias
series	SIGRADI
email
last changed	2016/03/10 09:50

_id	acadia12_419
id	acadia12_419
authors	Hsiao, Chih-Pin ; Davis, Nicholas M. ; Do, Ellen Yi-Luen
year	2012
title	Dancing on the Desktop
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 419-428
doi	https://doi.org/10.52842/conf.acadia.2012.419
summary	Dancing on the Desktop is a gesture-based modeling system. In this prototype, two interactive display screens are projected on the top of a desk and the wall behind it to show the plan and perspective views of an architectural model, respectively. A depth camera detects gestural interactions between these two displays to create an immersive gestural interaction space to manipulate the model. Additionally, visual images and text are projected on the user’s hands to provide different types of feedback about gestural interactions. We argue that Dancing on the Desktop helps users develop an embodied understanding of the spatial and volumetric properties of virtual objects. In this paper, we will review related gestural prototypes and examine their shortcomings. Then, we will introduce distributed cognition and describe how it helped our system address the shortcomings of typical gestural prototypes. Next, we will describe the implementation details and explain each type of gestural interaction in detail. Finally, we will discuss our preliminary tests and conclusions.
keywords	Design Cognition , Architectural Modeling , Gestural Inputs , Immersive Environment , Augmented Reality
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:51

_id	sigradi2012_158
id	sigradi2012_158
authors	Tagliari, Ana; Florio, Wilson
year	2012
title	Fabricação digital de maquetes para análise de projetos não-construídos utilizando a cortadora a laser [Digital fabrication of models to analyze unbuilt projects using laser cutter]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 530-533
summary	In this article we present the analysis methodology of thirty-nine unbuilt projects of the architect João Batista Vilanova Artigas,using models derived from digital fabrication. This precious artifact extends the possibilities of research and understandingof architecture. We present images of the steps of creating physical models of the projects that are being studied. Further tomethodological and technical production of physical models, high light its importance for the understanding of unbuilt projects.
keywords	Cortadora a laser; Projeto não-construído; Maquete; Fabricação Digital; Vilanova Artigas
series	SIGRADI
email
last changed	2016/03/10 10:01

_id	ecaade2012_212
id	ecaade2012_212
authors	Aghaei Meibodi, Mania ; Aghaiemeybodi, Hamia
year	2012
title	The Synergy Between Structure and Ornament: A Reflection on the Practice of Tectonic in the Digital and Physical Worlds
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 245-254
doi	https://doi.org/10.52842/conf.ecaade.2012.2.245
wos	WOS:000330320600024
summary	The use of digital design and fabrication technologies in architecture has followed a paradigm shift, which has seen the topology, form and structure of architecture pushed to incorporate areas such as climate, construction, acoustic etc. While these digital technologies are intended to enhance the processes and performance, a discussion of aesthetics has been ignored. Surmising that the use of digital technology enhances the performability and effi ciency aspects of architecture as well as the aesthetics, this research questions what the new relationships and arrangements for structure and ornament are. What are the challenges when structure uses a process-based logic and is sensitive to materiality whereas the aesthetics has a representation-based logic and is not sensitive to materiality? The authors of this paper contribute to this debate by using the notion of tectonic as a platform for gaining and creating knowledge about this issue and examining the issues through the design and prototyping of a Multi-functional Pavilion.
keywords	Processes; ornament; digital technology; tectonic; architectural expression
series	eCAADe
type	normal paper
email
last changed	2022/06/07 07:54

_id	acadia12_47
id	acadia12_47
authors	Aish, Robert ; Fisher, Al ; Joyce, Sam ; Marsh, Andrew
year	2012
title	Progress Towards Multi-Criteria Design Optimisation Using Designscript With Smart Form, Robot Structural Analysis and Ecotect Building Performance Analysis"
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 47-56
doi	https://doi.org/10.52842/conf.acadia.2012.047
summary	Important progress towards the development of a system that enables multi-criteria design optimisation has recently been demonstrated during a research collaboration between Autodesk’s DesignScript development team, the University of Bath and the engineering consultancy Buro Happold. This involved integrating aspects of the Robot Structural Analysis application, aspects of the Ecotect building performance application and a specialist form finding solver called SMART Form (developed by Buro Happold) with DesignScript to create a single computation environment. This environment is intended for the generation and evaluation of building designs against both structural and building performance criteria, with the aim of expediently supporting computational optimisation and decision making processes that integrate across multiple design and engineering disciplines. A framework was developed to enable the integration of modeling environments with analysis and process control, based on the authors’ case studies and experience of applied performance driven design in practice. This more generalised approach (implemented in DesignScript) enables different designers and engineers to selectively configure geometry definition, form finding, analysis and simulation tools in an open-ended system without enforcing any predefined workflows or anticipating specific design strategies and allows for a full range of optimisation and decision making processes to be explored. This system has been demonstrated to practitioners during the Design Modeling Symposium, Berlin in 2011 and feedback from this has suggested further development.
keywords	Design Optimisation , Scripting , Form Finding , Structural Analysis , Building Performance
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:54

_id	acadia12_391
id	acadia12_391
authors	Ajlouni, Rima
year	2012
title	The Forbidden Symmetries
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 391-400
doi	https://doi.org/10.52842/conf.acadia.2012.391
summary	The emergence of quasi-periodic tiling theories in mathematics and material science is revealing a new class of symmetry, which had never been accessible before. Because of their astounding visual and structural properties, quasi-periodic symmetries can be ideally suited for many applications in art and architecture; providing a rich source of ideas for articulating form, pattern, surface and structure. However, since their discovery, the unique long-range order of quasi-periodic symmetries, is still posing a perplexing puzzle. As rule-based systems, the ability to algorithmically generate these complicated symmetries can be instrumental in understanding and manipulating their geometry. Recently, the discovery of quasi-periodic patterns in ancient Islamic architecture is providing a unique example of how ancient mathematics can inform our understanding of some basic theories in modern science. The recent investigation into these complex and chaotic formations is providing evidence to show that ancient designers, by using the most primitive tools (a compass and a straightedge) were able to resolve the complicated long-range principles of ten-fold quasi-periodic formations. Derived from these ancient principles, this paper presents a computational model for describing the long-range order of octagon-based quasi-periodic formations. The objective of the study is to design an algorithm for constructing large patches of octagon-based quasi-crystalline formations. The proposed algorithm is proven to be successful in producing an infinite and defect-free covering of the two-dimensional plane.
keywords	computational model , quasi-crystalline , symmetries , algorithms , complex geometry
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:54

_id	acadia12_199
id	acadia12_199
authors	Beorkrem, Chris ; Corte, Dan
year	2012
title	Zero-Waste, Flat-Packed, Tri-Chord Truss: Continued Investigations of Structural Expression in Parametric Design"
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 199-208
doi	https://doi.org/10.52842/conf.acadia.2012.199
summary	The direct and rapid connections between scripting, modeling and prototyping allow for investigations of computation in fabrication. The manipulation of planar materials with two-dimensional CNC cuts can easily create complex and varied forms, volumes, and surfaces. However, the bulk of research on folding using CNC fabrication tools is focused upon surfaces, self-supporting walls and shell structures, which do not integrate well into more conventional building construction models. This paper attempts to explain the potential for using folding methodologies to develop structural members through a design-build process. Conventional building practice consists of the assembly of off-the-shelf parts. Many times, the plinth, skeleton, and skin are independently designed and fabricated, integrating multiple industries. Using this method of construction as an operative status quo, this investigation focused on a single structural component: the truss. Using folding methodologies and sheet steel to create a truss, this design investigation employed a recyclable and prolific building material to redefine the fabrication of a conventional structural member. The potential for using digital design and two-dimensional CNC fabrication tools in the design of a foldable truss from sheet steel is viable in the creation of a flat-packed, minimal waste structural member that can adapt to a variety of aesthetic and structural conditions. Applying new methods to a component of the conventional ‘kit of parts’ allowed for a novel investigation that recombines zero waste goals, flat-packing potential, structural expression and computational processes. This paper will expand (greatly) upon previous research into bi-chord truss designs, developing a tri-chord truss, which is parametrically linked to its structural moment diagram. The cross section of each truss is formed based on the loading condition for each beam. This truss design has been developed through a thorough series of analytical models and tests performed digitally, to scale and in full scale. The tri-chord truss is capable of resisting rotational failures well beyond the capacity of the bi-chord designs previously developed. The results are complex, and elegant expressions of structural logics embodied in a tightly constrained functional design.
keywords	Parametric Design , Structural Expression , Material constraints
series	ACADIA
type	normal paper
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last changed	2022/06/07 07:54

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