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

PDF papers
References

Hits 1 to 20 of 551

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	acadia12_491
id	acadia12_491
authors	Feringa, Jelle ; Søndergaard, Asbjørn
year	2012
title	An Integral Approach to Structural Optimization and Fabrication
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. 491-497
doi	https://doi.org/10.52842/conf.acadia.2012.491
summary	Abstract Integral structural optimization and fabrication seeks the synthesis of two original approaches; that of topological optimization (TO) and robotic hotwire cutting (HWC). TO allows for the reduction of up to 70% of the volume of concrete to support a given structure. A strength of the method is that it allows to come up with structural designs that lie beyond the grasp of traditional means of design. A design space is a discretized volume, delimiting where the optimization will take place. The number of cells used to discretize the design space thus sets the resolution of the TO. While the approach of the application of TO as a constitutive design tool centers on structural aspects in the design phase, the outcome of this process are structures that cannot be realized within a conventional budget. As such the ensuing design is optimal in a narrow sense; whilst optimal structurally though, construction can be prove to be prohibitively expensive. This paper reports ongoing research efforts on the development of a cost effective methodology for the realization of TO concrete structures using HWC.
keywords	Topology optimization , robotics , hotwire cutting , ruled surfaces , advanced concrete structures , formwork , EPS
series	ACADIA
type	panel paper
email
last changed	2022/06/07 07:50

_id	caadria2012_102
id	caadria2012_102
authors	Manahl, Markus; Heimo Schimek, Emmanuel Ruffo Calderon Dominguez and Albert Wiltsche
year	2012
title	Ornamental discretisation of free-form surfaces: Developing digital tools to integrate design rationalisation with the form finding process
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 347–356
doi	https://doi.org/10.52842/conf.caadria.2012.347
summary	The adoption of digital planning methods has given rise to an unprecedented formal freedom in architectural design. Free-form shapes enjoy considerable popularity in architectural production today. However, these shapes prove to be notoriously hard to fabricate. This paper reports on an ongoing research project investigating the approximation of continuous double-curved surfaces by discrete meshes consisting solely of planar facets, which can be constructed efficiently by using standardised, mass-produced building materials. We introduce our geometrical approach, which is based on the intersection of tangent planes to the surface, and present the digital tools we conceived to integrate the processes of design rationalisation and form-finding.
keywords	Digital tool-making; parametric design; free-form surfaces; design rationalisation; planar discretisation
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	ijac201210408
id	ijac201210408
authors	Manahl, Markus; Milena Stavric, Albert Wiltsche
year	2012
title	Ornamental Discretisation of Free-form Surfaces
source	International Journal of Architectural Computing vol. 10 - no. 4, 595-612
summary	The adoption of digital planning methods has given rise to an unprecedented formal freedom in architectural design. Free-form shapes enjoy considerable popularity in architectural production today. However, these shapes prove to be notoriously hard to fabricate. In the course of a funded research project we investigated the approximation of continuous double-curved surfaces by discrete meshes consisting solely of planar facets, which can be fabricated efficiently using standardised, mass-produced building materials.We introduce our geometrical approach, which is based on the intersection of tangent planes to the surface, and present the digital tools we conceived to integrate the processes of design rationalisation and form-finding.
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_317
id	ecaade2012_317
authors	Boeykens, Stefan ; Himpe, Caroline ; Martens, Bob
year	2012
title	A Case Study of Using BIM in Historical Reconstruction: The Vinohrady synagogue in Prague
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. 729-737.
doi	https://doi.org/10.52842/conf.ecaade.2012.1.729
wos	WOS:000330322400077
summary	This article refl ects on the digital reconstruction of the Vinohrady Synagogue in Prague, which was demolished in 1951. Based on an international collaboration through the Erasmus program, expertise derived from other Viennese synagogue reconstructions at TU Vienna was combined with a resource organization methodology developed at KU Leuven. The reconstruction process is carried out using BIM software, which poses some particular attention on the software methodology and model structure, but at the same time illustrates the added value of a BIM approach, when comparing with more traditional CAD modelling systematics. Of particular interest is the approach for modelling complex geometry, integrating with more traditional 2D documents and for visualizing reconstruction assumptions within the 3D model representation.
keywords	Virtual reconstruction; destroyed synagogue; 3D-modeling; BIM; urban context
series	eCAADe
email
last changed	2022/06/07 07:52

_id	caadria2012_032
id	caadria2012_032
authors	Chok, Kermin
year	2012
title	Automation at scale: Geometry, analysis and post processing
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 17–26
doi	https://doi.org/10.52842/conf.caadria.2012.017
summary	Our team is currently engaged in the peer review of a large steel stadium dome roof. The roof has a diameter of approximately 300m and rises to over 70m in elevation. In addition to its size, the roof also contains a moveable component which can be deployed during inclement weather. The roof structure comprises of approximately 32,000 beams with 10,000 nodes. This paper overviews our efforts in scaling digital design techniques with regards to automation and parametric geometry to expedite the verification of structural members and geometrically complicated connection nodes. The paper will discuss two realms where automation was deployed. The first realm is the verification of Type 1 node connections where less than eight members intersect at a single work point and is relatively geometrically simple. Type 1 nodes were checked against published code requirements. Type 2 connections consisted of nodes where more than eight members intersected or bracing angles did not meet code guidelines. Type 2 nodes were verified using the finite element method and large scale automation of node geometry creation to structural analysis post processing was employed.
keywords	Automation; Rhino 3D; scripting; structural; database
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	ecaade2012_113
id	ecaade2012_113
authors	Jutraz, Anja ; Zupancic, Tadeja
year	2012
title	Digital system of tools for public participation and education in urban design: Exploring 3D ICC
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. 383-392
doi	https://doi.org/10.52842/conf.ecaade.2012.1.383
wos	WOS:000330322400039
summary	This article is a starting point for the development of experiential urban co-design interfaces to enhance public participation in local urban projects and to be also used as a communication and collaboration tool in urban design. It is based on the previous research involving 3D city models utilized as understandable design interfaces for the non-technical public (Jutraz, Zupancic, 2011), where we have already explored different views (pedestrian, intermediate and bird’s-eye view), as well as the means by which the information obtained from these different views may be combined by shifting between viewpoints. Previous work was conducted in the “street lab” as well as the Urban Experimental Lab, which was developed specifi cally for the public’s participation in urban planning (Voigt, Kieferle, Wössner, 2009). Presented in this article is the next step that explores the immersive collaboration environment 3D ICC [1], formerly known as Teleplace. The environment was developed for effi cient collaboration and remote communication and shifts the research focus towards questions regarding how to employ both labs as interfaces between the non-technical public and design professionals. As we are facing the lack of digital systems for public participation and education in urban design, different digital tools for communication and collaboration should be combined into a new holistic platform for design. A digital system of tools needs to be developed that supports the urban design decision-making process and focuses on improved final solutions and increased satisfaction amongst all participants. In this article the system of digital tools for public participation, which include communication, collaboration and education, will be also defi ned, with its basic characteristics and its elements.
keywords	Digital system of tools; collaboration; 3D model; public participation; urban design
series	eCAADe
email
last changed	2022/06/07 07:52

_id	caadria2012_046
id	caadria2012_046
authors	Lertsithichai, Surapong
year	2012
title	Building Thailand's tallest Ganesh: CAD/CAM integration in conventional metal fabrication
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 337–346
doi	https://doi.org/10.52842/conf.caadria.2012.337
summary	Ganesh (Ganesa or Ganesha) is a Hindi god well known for his distinguishable elephant head and widely revered as the god of success or remover of obstacles. Patrons in Thailand have worshipped Ganesh and respected him by means of erecting statues of Ganesh in various poses and sizes throughout the country. In late 2008, the people of Chacheongsao, a province located East of Bangkok, decided to create Thailand’s tallest standing Ganesh statue made with bronze reaching heights up to 39 meters and situated on the Bangpakong river bank overseeing the city and its people. The author and design team was approached by representatives from Chacheongsao and commissioned to advise the process from conception to construction. The challenge started with seeking appropriate computer-aided design and manufacturing technologies and innovative processes to guide the design team throughout the production. The 0.60-meter bronze cast sculpture of the Ganesh was scanned using a 3D optical scanner to generate a solid model of the statue. A surface model was then extracted from the 3D model to firstly determine the most efficient structural support within the statue and secondly to generate surface strips for the foundry to create actual bronze casts. The construction of the project began early 2009 and the statue has since been erected from its base to currently its head. During construction, the author and design team has encountered several problems translating pixels to parts. Several errors have occurred during the mould and cast production process as well as construction errors on site causing mismatches of the structure and surface, misalignments, and protruding structural supports and joints. The lessons learned from this project is documented and analysed with hopes to create a more effective process for future projects with similar requirements.
keywords	CAD/CAM; 3D scanner; CNC milling; metal fabrication
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	sigradi2012_59
id	sigradi2012_59
authors	Pinheiro, Mauro; Spitz, Rejane
year	2012
title	Mecanismos atencionais como parâmetros para o design de sistemas de informação ambiente [Attentional mechanisms as parameters for the design of ambient information systems]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 175-178
summary	We present an evaluation model to analyze ambient information systems, based on attentional mechanisms. Taking Weiser and Brown (1996) concepts of Ubiquitous Computing and Calm Technology as a starting point, we delimit ambient information systems as those that can be monitored without requiring the focus of our attention. Using the theoretical framework from Cognitive Psychology, we propose an evaluation model to analyze ambient information systems, considering the attentional mechanisms involved in their use. As a conclusion, we outline a set of parameters to be considered during the design of ambient information systems.
keywords	sistemas de informação; atenção; ambiente; computação ubíqua; tecnologia calma
series	SIGRADI
email
last changed	2016/03/10 09:57

_id	ecaade2012_209
id	ecaade2012_209
authors	Prousalidou, Elena
year	2012
title	A Digital Model for Fabric Formwork Panels: Using Physical Data to Train the Digital Model
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. 159-167
doi	https://doi.org/10.52842/conf.ecaade.2012.2.159
wos	WOS:000330320600016
summary	In the context of a wider inquiry on the integration of material properties and construction processes in computational models, this paper proposes a digital model for fabric formwork panels. Plaster cast in different types of fabric can produce a significant variation of resulting forms. The aim is to investigate whether data retrieved from physical models with 3D scanning techniques can improve the accuracy and efficiency of a simulation based on geometric principles, and better predict the behaviour of cast material in relation to the type of fabric. Setting up the computational model and choosing its parameters and constraints is based on the physical construction process, highlighting the relationship between material and form. As part of the cyclical exchange, evaluation of the digital model with physical testing demonstrates that the simulation can actually be trained by reducing the physical/ digital discrepancies.
keywords	Fabric formwork; simulation; dynamic relaxation; 3d scanning; kinect
series	eCAADe
email
last changed	2022/06/07 08:00

_id	acadia12_409
id	acadia12_409
authors	Schubert, Gerhard ; Artinger, Eva ; Yanev, Violin ; Klinker, Gudrun ; Petzold, Frank
year	2012
title	3d Virtuality Sketching: Interactive 3d Sketching Based on Real Models in a Virtual Scene
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. 409-418
doi	https://doi.org/10.52842/conf.acadia.2012.409
summary	Sketches and working models are without doubt one of the most widely used tools in the architect’s repertoire. In the early phases of the design process in particular, they represent an essential part of the exploration process. For the most part, however, sketching and model building are separate and sequential steps. This paper examines how both media can be linked to each other more effectively so that the design process is more continuous and the transition between the two media more fluid. Using a multi-touch table with additional 3D real-time object recognition, a prototypical system was developed and realised as part of a research project in which an interactive 3D sketching tool was linked with a real 3D working model.
keywords	design support , design tool , early design stages , HCI , urban design , interaction , collaboration
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:57

_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	ecaade2012_124
id	ecaade2012_124
authors	Wierzbicki-Neagu, Madalina ; Silva, Clarence Wilfred de
year	2012
title	Application of Fuzzy Logic for Optimizing Foldable Freeform Geometries: An example of a practical application – a foldable window shade
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. 709-717.
doi	https://doi.org/10.52842/conf.ecaade.2012.1.709
wos	WOS:000330322400075
summary	This paper concerns the current discourse on computer-aided design tools for architectural design. There are drawbacks of purely analytic design tools which hinder a system-level, end-effect oriented ideation. For instance, most freeform quadrilateral meshes are fully constrained and therefore not capable of folding. They can only fold under special circumstances – when their geometry satisfi es the conditions of over-constrained kinematics. However, such intent of folding cannot be captured using simple modeling based on parameters and constraints. Furthermore, algorithmization of mesh kinematics using formulas is infl exible, it cannot handle topological variations, and it inhibits the interactive control of the model. In this paper, a fuzzy logic algorithm which uses a goal-oriented, human-like reasoning to control the parametric model is proposed. The algorithm applies easily observable behaviors of the geometry to adjust the selected patches until the entire shell can be folded. The algorithm relies on designer-observable characteristics of motion rather than on formulaic representations. Such approach directs the designers’ focus on the desired outcome while avoiding the drawbacks of analytic modeling of complex kinematics.
keywords	Folding structures; fuzzy logic; intent-driven design; freeform quadrilateral mesh
series	eCAADe
email
last changed	2022/06/07 07:57

_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
email
last changed	2022/06/07 07:54

_id	ecaade2012_303
id	ecaade2012_303
authors	Cheng, Nancy Yen-wen
year	2012
title	Shading With Folded Surfaces: Designing With Material, Visual and Digital Considerations
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. 613-620
doi	https://doi.org/10.52842/conf.ecaade.2012.2.613
wos	WOS:000330320600066
summary	This paper analyses a hybrid design approach; how physical and digital processes can inform each other in a multivalent design cycle. It describes the design of origami-inspired window shades, part of the Shaping Light project that explores how adjustable surface structures can modulate light levels and heat gain in response to the changing seasons. The screen uses sloped surfaces to diffuse light and create apertures that close when the screen is stretched and open when the screen is folded. The project complements digital methods for pattern proportioning and kinetic simulation with manual manipulation to generate 3D folding motifs and refi ne assemblies. Physical prototypes can shape digital refi nement by revealing visual and structural characteristics of materials, along with joint and production considerations. Physical models for simulating sunny and cloudy daylighting conditions provide a direct connection between spatial confi guration and visual effects. The paper concludes with guidelines for material-based digital-analog creation.
keywords	Architectural design process; digital fabrication; shading devices; origami
series	eCAADe
email
last changed	2022/06/07 07:55

_id	sigradi2012_72
id	sigradi2012_72
authors	Cote, Eduardo; Pinzón, Andrés Augusto
year	2012
title	Reverberación sonora: parámetros en modelación digital y física [Sound Reverberation: Parameters in Digital and Physical Modeling]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 444-448
summary	This is a study of the reverberation phenomena into a space. Digital and physical methods are employed as a way to understand the parameters that determine the reverberation time in an indoor space. The comparison of the results between digital and physical modeling permit to establish actions of acoustic control. The surfaces of the space are modified using sounds diffusers.
keywords	Tiempo de reverberación (RT60), Parámetros sonoros, Ecotect, Prototipado rápido.
series	SIGRADI
email
last changed	2016/03/10 09:49

_id	caadria2012_029
id	caadria2012_029
authors	Dutt, Florina and Subhajit Dasd
year	2012
title	Responsive achitectural surface design from nonlinear systems biology: Responsive architectural design by computational methods
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 465–474
doi	https://doi.org/10.52842/conf.caadria.2012.465
summary	The fundamental processes in living systems can be a potential resource to derive nonlinear relationships that could find application in the design of responsive surface from an architectural standpoint. This research focuses on deriving a parametric relationship from a phenomenon in cell biology to generate an architectural expression of responsive surface/ façade. It further delineates the dynamic feedback mechanism from the environment and user as control factors. Through extensive investigation of cell-to-cell connections in the mammary epithelial cells and review of evident relay of communication across the entire system of cells, we could unfold the logical parameters of the biological system. Parametric modelling indicating the causality of the surface condition, changes with the change in extracellular matrix. This gives an opportunity to manoeuvre the surface parameters, contrary to the involuntary cell environment where the behaviours are under the control of a physiological process. Architecturally, the dynamic relationship of surface in a hybridised model, explains that interactivity is not a mere one to one response to a stimulus. Evidently, this interactive process can be a sophisticated loop of feedback through different materiality and componentry that play their effects (and are played back) by “active” surfaces.
keywords	Computational design; responsive architecture; sustainable façade design; bio-inspired design; bio-mimicry
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	acadia12_269
id	acadia12_269
authors	Lally, Sean
year	2012
title	Architecture of an Active Context
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. 269-276
doi	https://doi.org/10.52842/conf.acadia.2012.269
summary	As we stand with our feet on earth’s outermost surface we build an architecture today that is much like it was several thousand years earlier, in an attempt to extend that outer shell with one of our own making. Artificial masses are built from a refinement of this existing geologic layer into materials of stone, steel, concrete, and glass that assemble to produce new pockets of space through the buildings they create. However, the sixth century BC writer Thales of Miletus put a different perspective on this: he insisted that we live, in reality, not on the summit of a solid earth but at the bottom of an ocean of air (Holmyard 1931). And so, as architecture continues to build up the outermost layer of earth’s surface through a mimicking, embellishing, and enhancing of the materials which it comes from, it raises the question of why we have not brought a similar relationship to the materialities at the bottom of this “ocean” of air to create the spaces we call architecture. If you were looking to level a complaint with the architectural profession, stating that it has not been ambitious enough in scope would not be one. Architects have never shied away from the opportunity to design everything from the building’s shell to the teaspoon used to stir your sugar in its matching cup. But it would seem that the profession has developed a rather large blind spot in terms of what it sees as a malleable material with which to engage. Architects have made assumptions as to what is beyond our scope of action, refraining from engaging a range of material variables due to a belief that the task would be too great or simply beyond our physical control. So even though we are enveloped by them continuously, both on the exterior as well as the interior of our buildings, it must be assumed that the particles, waves, and frequencies of energy that move around us are thought by architects to be too faint and shaky to unload upon them any heavy obligations, that they are too unwieldy for us to control to create the physical boundaries of separation, security, and movement required of architecture. This has resulted in a cultivated set of blinders that essentially defines architecture as a set of mediation devices (surfaces, walls, and inert masses) for tempering the environmental context it is situated in from the individuals and activities within. The spaces we inhabit are defined by their ability to decide what gets in and what stays out (sunlight, precipitation, winds). We place our organizational demands and aesthetic opinions on the surfaces that mediate these variables rather than seeing them as available for manipulation as a building material on their own. The intention here is to recalibrate the materialities that make up that environmental context to build architecture. The starting point is a rather naive question: can we design the energy systems that course in and around us daily as an architectural material so as to take on the needs of activities, securities, and lifestyles associated with architecture? Can the variables that we would normally mediate against instead be heightened and amplified so as to become the architecture itself? That which many would incorrectly dismiss as simply “air” today—thought to be homogeneous, scale-less, and vacant due in part to the limits of our human sensory system to perceive more fully otherwise—might tomorrow be further articulated, populated, and layered so as to become a materiality that will build spatial boundaries, define activities of individuals and movement, and act as architectural space. Our environmental context consists of a diverse range of materials (particles and waves of energy, spectrum of light, sound waves, and chemical particles) that can be manipulated and formed to meet our needs. The opportunity before us today is to embrace the needs of organizational structures and aesthetics by designing the active context that surrounds us through the material energies that define it.
keywords	Material energies
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:52

_id	caadria2012_008
id	caadria2012_008
authors	Schimek, Heimo; Emmanuel Ruffo Calderon Dominguez, Albert Wiltsche and Markus Manahl
year	2012
title	Sewing timber panels: An innovative digitally supported joint system for self-supported timber plate structures
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 213–222
doi	https://doi.org/10.52842/conf.caadria.2012.213
summary	This paper focuses on the joint system of flat panels as parts of a freeform building. This topic is a key area of the ongoing founded research project, in which we investigate nonstandard shapes, realized with standard building materials, namely cross-laminated timber (CLT). We use different discretization algorithms to overlay arbitrary freeform surfaces with ornaments consisting of polygonal flat panels. We investigate a series of ornaments and their discretization results on different surfaces. In this paper, we will present and discuss a new timber-to-timber joint system that we developed exclusively for this project. We discuss the results of the load tests that we performed recently and we take a look at the construction dependent requirements of the joint system concerning the tolerances and the geometry and also, how these constraints inform the digital process. As we will discuss throughout the paper, in earlier publications we described the form finding process and the geometrical guidelines for the discretization of a desired freeform building using ornamental flat patterns. This paper moves one step further as the digital becomes physical and it is closely related to building construction and the computational design outset.
keywords	Digital fabrication technology; computational algorithmic design; building construction; freeform optimisation; CLT joint system
series	CAADRIA
email
last changed	2022/06/07 07:57

For more results click below: