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

_id	cdrf2023_526
id	cdrf2023_526
authors	Eric Peterson, Bhavleen Kaur
year	2023
title	Printing Compound-Curved Sandwich Structures with Robotic Multi-Bias Additive Manufacturing
doi	https://doi.org/https://doi.org/10.1007/978-981-99-8405-3_44
source	Proceedings of the 2023 DigitalFUTURES The 5st International Conference on Computational Design and Robotic Fabrication (CDRF 2023)
summary	A research team at Florida International University Robotics and Digital Fabrication Lab has developed a novel method for 3d-printing curved open grid core sandwich structures using a thermoplastic extruder mounted on a robotic arm. This print-on-print additive manufacturing (AM) method relies on the 3d modeling software Rhinoceros and its parametric software plugin Grasshopper with Kuka-Parametric Robotic Control (Kuka-PRC) to convert NURBS surfaces into multi-bias additive manufacturing (MBAM) toolpaths. While several high-profile projects including the University of Stuttgart ICD/ITKE Research Pavilions 2014–15 and 2016–17, ETH-Digital Building Technologies project Levis Ergon Chair 2018, and 3D printed chair using Robotic Hybrid Manufacturing at Institute of Advanced Architecture of Catalonia (IAAC) 2019, have previously demonstrated the feasibility of 3d printing with either MBAM or sandwich structures, this method for printing Compound-Curved Sandwich Structures with Robotic MBAM combines these methods offering the possibility to significantly reduce the weight of spanning or cantilevered surfaces by incorporating the structural logic of open grid-core sandwiches with MBAM toolpath printing. Often built with fiber reinforced plastics (FRP), sandwich structures are a common solution for thin wall construction of compound curved surfaces that require a high strength-to-weight ratio with applications including aerospace, wind energy, marine, automotive, transportation infrastructure, architecture, furniture, and sports equipment manufacturing. Typical practices for producing sandwich structures are labor intensive, involving a multi-stage process including (1) the design and fabrication of a mould, (2) the application of a surface substrate such as FRP, (3) the manual application of a light-weight grid-core material, and (4) application of a second surface substrate to complete the sandwich. There are several shortcomings to this moulded manufacturing method that affect both the formal outcome and the manufacturing process: moulds are often costly and labor intensive to build, formal geometric freedom is limited by the minimum draft angles required for successful removal from the mould, and customization and refinement of product lines can be limited by the need for moulds. While the most common material for this construction method is FRP, our proof-of-concept experiments relied on low-cost thermoplastic using a specially configured pellet extruder. While the method proved feasible for small representative examples there remain significant challenges to the successful deployment of this manufacturing method at larger scales that can only be addressed with additional research. The digital workflow includes the following steps: (1) Create a 3D digital model of the base surface in Rhino, (2) Generate toolpaths for laminar printing in Grasshopper by converting surfaces into lists of oriented points, (3) Generate the structural grid-core using the same process, (4) Orient the robot to align in the direction of the substructure geometric planes, (5) Print the grid core using MBAM toolpaths, (6) Repeat step 1 and 2 for printing the outer surface with appropriate adjustments to the extruder orientation. During the design and printing process, we encountered several challenges including selecting geometry suitable for testing, extruder orientation, calibration of the hot end and extrusion/movement speeds, and deviation between the computer model and the physical object on the build platen. Physical models varied from their digital counterparts by several millimeters due to material deformation in the extrusion and cooling process. Real-time deviation verification studies will likely improve the workflow in future studies.
series	cdrf
email
last changed	2024/05/29 14:04

_id	acadia23_v2_294
id	acadia23_v2_294
authors	Matharu, Sumer; Crawford, Joe; Ohakim, Ugonna
year	2023
title	Techno Relics: A Framework for Computation, Materiality, and Fabrication in the Anthropocene
source	ACADIA 2023: Habits of the Anthropocene: Scarcity and Abundance in a Post-Material Economy [Volume 2: Proceedings of the 43rd Annual Conference for the Association for Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9891764-0-3]. Denver. 26-28 October 2023. edited by A. Crawford, N. Diniz, R. Beckett, J. Vanucchi, M. Swackhamer 294-303.
summary	This paper explores the potential of material, computation, and fabrication methodologies broadly engaging a critical understanding of the human epoch, also known as the anthro- pocene era, and its impact on Earth’s geology. Man-made materials have arguably become ubiquitous and a massively distributed part of the environment, while also placing an involuntary burden on local ecologies. Nature has taken its course and swallowed these synthetic materials to create new compositions of complex conglomerations, thereby blur- ring the boundaries between the agency of man, nature, and technology (Corcoran et al. 2014). The discipline of architecture, too, must reconsider its own boundaries, and evolve to design and fabricate with these techno relics, defined here as a remnant of the techno- logical impact on our planet. In order to understand how these techno relics can be used by designers, this paper pres- ents a general framework for the research, discovery, and validation of computational and fabrication processes. This is done through the examination of the background research in using aluminum waste by leveraging pre-existing digital and physical processes. Furthermore, the paper situates the background work within the broader context of how these techno relics can be mined, or collected. This is done through the examination of a case study that follows plastic waste in the Pacific Northwest through an Indigenous lens, providing possible architectural solutions that are relevant to the building typology in the remote communities most affected.
series	ACADIA
type	paper
email
last changed	2024/12/20 09:12

_id	sigradi2014_075
id	sigradi2014_075
authors	Afsari, Kereshmeh; Chuck Eastman
year	2014
title	Categorization of building product models in BIM Content Library portals
source	SiGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay- Montevideo 12,13,14 November 2014, pp. 370-374
summary	BIM Content Libraries are performing as online sources for building product models. In order to effectively use the product models, it is important to organize them systematically within these databases. But currently there is no standard or guideline for this purpose. Products in these libraries are being categorized based on different criteria such as the object classes in the target platform, by referring to multiple classification systems or based on customized categories. This paper studies some of the BIM Content Libraries and investigates the structure that each library is using for product categorization. It indicates the need for a generic framework for the purpose of product categorization in BIM Content Libraries.
keywords	BIM objects; Product models; Building models; BIM Content Library; Product category
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ascaad2014_037
id	ascaad2014_037
authors	Al-Tuhafi, Assda A. and Nasma M. Thabit
year	2014
title	The Methodology of Teaching Computer-Aided Architectural Design in the Department of Architecture in Mosul University
source	Digital Crafting [7th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2014 / ISBN 978-603-90142-5-6], Jeddah (Kingdom of Saudi Arabia), 31 March - 3 April 2014, pp. 271; 457-469
summary	Several architectural studies tackled the methodologies of teaching the architectural design subject in general and their relation to the use of computer in particular. The trends varied in accordance with the research that is relevant to the subject due to its importance in generating new architectural models, but it didn’t crystallize a theoretical framework that identifies clear and specific vocabularies related to the methodology of teaching the computer-aided architectural design. The current study discusses the importance of this concept in an attempt to explore the particular problem represented by the non-clarity of this methodology in the department of architecture in Mosul University. Therefore, the problem of the research crystallized and its objective and its methodology were identified and this was represented by constructing a theoretical framework which includes several main items. Then the theoretical framework was applied to selected projects of architectural department students in order to manifest the particularity of teaching the computer-aided architectural design. Results showed the distinction of this department as this methodology led to the derivation of different architectural products in accordance with the particular effects using the computer technologies. The results also manifested the change in the architectural design trend that was caused due to the digital intervention in the way of the student's thinking from one hand and the components and the elements of the building from the other hand that the quality of the design can be improved by using the computer and the quantity will be more in shorter time.
series	ASCAAD
email
last changed	2016/02/15 13:09

_id	caadria2014_170
id	caadria2014_170
authors	Beirão, José Nuno; André Chaszar and Ljiljana _avi_
year	2014
title	Convex- and Solid-Void Models for Analysis and Classification of Public Spaces
doi	https://doi.org/10.52842/conf.caadria.2014.253
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 253–262
summary	In this paper a semiautomated morphological classification of urban space is addressed systematically by sorting through the volumetric shapes of public spaces represented as 3-dimensional convex and solid voids. The motivation of this approach comes from a frequent criticism of space syntax methods for lacking information on how buildings and terrain morphology influence the perception and use of public spaces in general and streets in particular. To solve this problem information on how façades relate with streets and especially information about the facades’ height should be considered essential to produce a richer and more accurate morphological analysis of street canyons and other open spaces. Parametric modelling of convex voids broadens the hitherto known concept of two-dimensional convex spaces considering surrounding facades’ height and topography as important inputs for volumetric representation of urban space. The method explores the analytic potentials of ‘convex voids’ and ‘solid voids’ in describing characteristics of open public spaces such as containment, openness, enclosure, and perceived enclosure, and using these metrics to analyse and classify urban open spaces.
keywords	Open public space; convex voids; solid voids; user-guided feature recognition
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	ecaade2023_000
id	ecaade2023_000
authors	Dokonal, Wolfgang, Hirschberg, Urs and Wurzer, Gabriel
year	2023
title	eCAADe 2023 Digital Design Reconsidered - Volume 1
doi	https://doi.org/10.52842/conf.ecaade.2023.1.001
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 1, Graz, 20-22 September 2023, 905 p.
summary	The conference logo is a bird’s eye view of spiral stairs that join and separate – an homage to the famous double spiral staircase in Graz, a tourist attraction of this city and a must-see for any architecturally minded visitor. Carved out of limestone, the medieval construction of the original is a daring feat of masonry as well as a symbolic gesture. The design speaks of separation and reconciliation: The paths of two people that climb the double spiral stairs separate and then meet again at each platform. The relationship between architectural design and the growing digital repertoire of tools and possibilities seems to undergo similar cycles of attraction and rejection: enthusiasm about digital innovations – whether in Virtual Reality, Augmented Reality, Energy Design, Robotic Fabrication, the many Dimensions of BIM or, as right now, in AI and Machine Learning – is typically followed by a certain disillusionment and a realization that the promises were somewhat overblown. But a turn away from these digital innovations can only be temporary. In our call for papers we refer to the first and second ‘digital turns’, a term Mario Carpo coined. Yes, it’s a bit of a pun, but you could indeed see these digital turns in our logo as well. Carpo would probably agree that design and the digital have become inseparably intertwined. While they may be circling in different directions, an innovative rejoinder is always just around the corner. The theme of the conference asked participants to re-consider the relationship between Design and the Digital. The notion of a cycle is already present in the syllable “re”. Indeed, 20 years earlier, in 2003, we held an ECAADE conference in Graz simply under the title “Digital Design” and our re-using – or is it re-cycling? – the theme can be seen as the completion of one of those cycles described above: One level up, we meet again, we’ve come full circle. The question of the relationship between Design and the Digital is still in flux, still worthy of renewed consideration. There is a historical notion implicit in the theme. To reconsider something, one needs to take a step back, to look into the past as well as into the future. Indeed, at this conference we wanted to take a longer view, something not done often enough in the fast-paced world of digital technology. Carefully considering one’s past can be a source of inspiration. In fact, the double spiral stair that inspired our conference logo also inspired many architects through the ages. Konrad Wachsmann, for example, is said to have come up with his famous Grapevine assembly system based on this double spiral stair and its intricate joinery. More recently, Rem Koolhaas deemed the double spiral staircase in Graz important enough to include a detailed model of it in his “elements of architecture” exhibition at the Venice Biennale in 2014. Our interpretation of the stair is a typically digital one, you might say. First of all: it’s a rendering of a virtual model; it only exists inside a computer. Secondly, this virtual model isn’t true to the original. Instead, it does what the digital has made so easy to do: it exaggerates. Where the original has just two spiral stairs that separate and join, our model consists of countless stairs that are joined in this way. We see only a part of the model, but the stairs appear to continue in all directions. The implication is of an endless field of spiral stairs. As the 3D model was generated with a parametric script, it would be very easy to change all parameters of it – including the number of stairs that make it up. Everyone at this conference is familiar with the concept of parametric design: it makes generating models of seemingly endless amounts of connected spiral stairs really easy. Although, of course, if we’re too literal about the term ‘endless’, generating our stair model will eventually crash even the most advanced computers. We know that, too. – That's another truth about the Digital: it makes a promise of infinity, which, in the end, it can’t keep. And even if it could: what’s the point of just adding more of the same: more variations, more options, more possible ways to get lost? Doesn’t the original double spiral staircase contain all those derivatives already? Don’t we know that ‘more’ isn’t necessarily better? In the original double spiral stair the happy end is guaranteed: the lovers’ paths meet at the top as well as when they exit the building. Therefore, the stair is also colloquially known as the Busserlstiege (the kissing stair) or the Versöhnungsstiege (reconciliation stair). In our digitally enhanced version, this outcome is no longer clear: we can choose between multiple directions at each level and we risk losing sight of the one we were with. This is also emblematic of our field of research. eCAADe was founded to promote “good practice and sharing information in relation to the use of computers in research and education in architecture and related professions” (see ecaade.org). That may have seemed a straightforward proposition forty years ago, when the association was founded. A look at the breadth and depth of research topics presented and discussed at this conference (and as a consequence in this book, for which you’re reading the editorial) shows how the field has developed over these forty years. There are sessions on Digital Design Education, on Digital Fabrication, on Virtual Reality, on Virtual Heritage, on Generative Design and Machine Learning, on Digital Cities, on Simulation and Digital Twins, on BIM, on Sustainability, on Circular Design, on Design Theory and on Digital Design Experimentations. We hope you will find what you’re looking for in this book and at the conference – and maybe even more than that: surprising turns and happy encounters between Design and the Digital.
series	eCAADe
email
last changed	2023/12/10 10:49

_id	ecaade2023_001
id	ecaade2023_001
authors	Dokonal, Wolfgang, Hirschberg, Urs and Wurzer, Gabriel
year	2023
title	eCAADe 2023 Digital Design Reconsidered - Volume 2
doi	https://doi.org/10.52842/conf.ecaade.2023.2.001
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, 899 p.
summary	The conference logo is a bird’s eye view of spiral stairs that join and separate – an homage to the famous double spiral staircase in Graz, a tourist attraction of this city and a must-see for any architecturally minded visitor. Carved out of limestone, the medieval construction of the original is a daring feat of masonry as well as a symbolic gesture. The design speaks of separation and reconciliation: The paths of two people that climb the double spiral stairs separate and then meet again at each platform. The relationship between architectural design and the growing digital repertoire of tools and possibilities seems to undergo similar cycles of attraction and rejection: enthusiasm about digital innovations – whether in Virtual Reality, Augmented Reality, Energy Design, Robotic Fabrication, the many Dimensions of BIM or, as right now, in AI and Machine Learning – is typically followed by a certain disillusionment and a realization that the promises were somewhat overblown. But a turn away from these digital innovations can only be temporary. In our call for papers we refer to the first and second ‘digital turns’, a term Mario Carpo coined. Yes, it’s a bit of a pun, but you could indeed see these digital turns in our logo as well. Carpo would probably agree that design and the digital have become inseparably intertwined. While they may be circling in different directions, an innovative rejoinder is always just around the corner. The theme of the conference asked participants to re-consider the relationship between Design and the Digital. The notion of a cycle is already present in the syllable “re”. Indeed, 20 years earlier, in 2003, we held an ECAADE conference in Graz simply under the title “Digital Design” and our re-using – or is it re-cycling? – the theme can be seen as the completion of one of those cycles described above: One level up, we meet again, we’ve come full circle. The question of the relationship between Design and the Digital is still in flux, still worthy of renewed consideration. There is a historical notion implicit in the theme. To reconsider something, one needs to take a step back, to look into the past as well as into the future. Indeed, at this conference we wanted to take a longer view, something not done often enough in the fast-paced world of digital technology. Carefully considering one’s past can be a source of inspiration. In fact, the double spiral stair that inspired our conference logo also inspired many architects through the ages. Konrad Wachsmann, for example, is said to have come up with his famous Grapevine assembly system based on this double spiral stair and its intricate joinery. More recently, Rem Koolhaas deemed the double spiral staircase in Graz important enough to include a detailed model of it in his “elements of architecture” exhibition at the Venice Biennale in 2014. Our interpretation of the stair is a typically digital one, you might say. First of all: it’s a rendering of a virtual model; it only exists inside a computer. Secondly, this virtual model isn’t true to the original. Instead, it does what the digital has made so easy to do: it exaggerates. Where the original has just two spiral stairs that separate and join, our model consists of countless stairs that are joined in this way. We see only a part of the model, but the stairs appear to continue in all directions. The implication is of an endless field of spiral stairs. As the 3D model was generated with a parametric script, it would be very easy to change all parameters of it – including the number of stairs that make it up. Everyone at this conference is familiar with the concept of parametric design: it makes generating models of seemingly endless amounts of connected spiral stairs really easy. Although, of course, if we’re too literal about the term ‘endless’, generating our stair model will eventually crash even the most advanced computers. We know that, too. – That's another truth about the Digital: it makes a promise of infinity, which, in the end, it can’t keep. And even if it could: what’s the point of just adding more of the same: more variations, more options, more possible ways to get lost? Doesn’t the original double spiral staircase contain all those derivatives already? Don’t we know that ‘more’ isn’t necessarily better? In the original double spiral stair the happy end is guaranteed: the lovers’ paths meet at the top as well as when they exit the building. Therefore, the stair is also colloquially known as the Busserlstiege (the kissing stair) or the Versöhnungsstiege (reconciliation stair). In our digitally enhanced version, this outcome is no longer clear: we can choose between multiple directions at each level and we risk losing sight of the one we were with. This is also emblematic of our field of research. eCAADe was founded to promote “good practice and sharing information in relation to the use of computers in research and education in architecture and related professions” (see ecaade.org). That may have seemed a straightforward proposition forty years ago, when the association was founded. A look at the breadth and depth of research topics presented and discussed at this conference (and as a consequence in this book, for which you’re reading the editorial) shows how the field has developed over these forty years. There are sessions on Digital Design Education, on Digital Fabrication, on Virtual Reality, on Virtual Heritage, on Generative Design and Machine Learning, on Digital Cities, on Simulation and Digital Twins, on BIM, on Sustainability, on Circular Design, on Design Theory and on Digital Design Experimentations. We hope you will find what you’re looking for in this book and at the conference – and maybe even more than that: surprising turns and happy encounters between Design and the Digital.
series	eCAADe
type	normal paper
email
last changed	2024/08/29 08:36

_id	caadria2014_161
id	caadria2014_161
authors	Heydarian, Arsalan; Joao P. Carneiro,David Gerber, Burcin Becerik-Gerber, Timothy Hayes and Wendy Wood
year	2014
title	Immersive Virtual Environments: Experiments on Impacting Design and Human Building Interaction
doi	https://doi.org/10.52842/conf.caadria.2014.729
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 729–738
summary	This research prefaces the need for engaging with endusers in early stages of design as means to achieve higher performing designs with an increased certainty for enduser satisfaction. While the architecture, engineering, and construction (AEC) community has previously used virtual reality, the primary use has been for coordination and visualization of Building Information Models (BIM). This work builds upon the value of use of virtual environments in AEC processes but asks the research question "how can we better test and measure design alternatives through the integration of immersive virtual reality into our digital and physical mock up workflows? " The work is predicated on the need for design exploration through associative parametric design models, as well as, testing and measuring design alternatives with human subjects. The paper focuses on immersive virtual environments (IVEs) and presents a literature review of the use of virtual environments for integrating enduser feedback during the design stage. In a controlled pilot experiment, the authors find that human participants perform similarly in IVE and the physical environment in everyday tasks. The participants indicated they felt a strong sense of "presence" in IVE. In the future, the authors plan on using IVE to explore the integration of multi agent systems to impact building design performance and occupant satisfaction.
keywords	Virtual Reality; Prototyping; Design Technology; Immersive Virtual Environments; Feedback
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	caadria2014_244
id	caadria2014_244
authors	Leblanc, François
year	2014
title	Anything, Anyone, Anywhere
doi	https://doi.org/10.52842/conf.caadria.2014.461
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 461–470
summary	According to Hod Lipson at Cornell University’s Creative Machines Lab, cloud manufacturing ‘consists of a network of smallscale, decentralized nodes of production.’ It is a novel production approach relative to centralized mass production and standardisation methods common to today’s industrial processes. To date, cloud manufacturing techniques have focused largely on the production of smallscale consumer goods that integrate digital fabrication techniques, the most popular being 3D-printing technology. With advances in network-based design platforms for 3D-printing services in combination with the global installation of fabrication laboratories (fab lab), the production of architectural building components using cloud manufacturing techniques is now possible. This paper will define how cloud manufacturing techniques can be expanded into the realm of architectural practice and, in particular, how such techniques can be applied to larger-scale building and construction components. The paper will further discuss how such novel additive manufacturing (AM) processes applied to construction can potentially revolutionize architectural design by generating a new collaborative design model that facilitates local production of customized and readily assembled building components on demand.
keywords	additive manufacturing; cloud manufacturing; peer-to-peer production; collaborative design; open-source design
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	ecaade2014_141
id	ecaade2014_141
authors	Martin Tamke, Morten Myrup Jensen, Jakob Beetz, Thomas Krijnen and Dag Fjeld Edvardsen
year	2014
title	Building Information Deduced - State and potentials for Information query in Building Information Modelling
doi	https://doi.org/10.52842/conf.ecaade.2014.2.375
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 375-384
summary	In recent years, Building Information Models have become commonplace in building profession. The extensive use and increasing experience with BIM models offers new perspectives and potentials for design and planning. A recent stakeholder study conducted by the authors of this paper show that in practice models are no longer solely observed as culmination of knowledge in a 3d representation of future built structures, but as a source of information in itself. Experienced users of BIM want to Find Information within a model or across a set of these and Compare models in order to evaluate states of a model, differences in separate models or models from different point of time. Current BIM tools support both modes only in a rudimentary form. This paper discusses current modes of information query within and across BIM models, shows beneficial scenarios for building and planning practice through customised queries and exemplifies these on the base of a scripted tool. This customized approach is used to test approaches for a machine-based assessment of Level of detail and BIM-readiness in BIM models.
wos	WOS:000361385100039
keywords	Building information modelling; bim; ifc; openbim; information query; data extraction
series	eCAADe
email
last changed	2022/06/07 07:59

_id	ecaade2014_224
id	ecaade2014_224
authors	Mohammad Rahmani Asl, Michael Bergin, Adam Menter and Wei Yan
year	2014
title	BIM-based Parametric Building Energy Performance Multi-Objective Optimization
doi	https://doi.org/10.52842/conf.ecaade.2014.2.455
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 455-464
summary	Building energy performance assessments are complex multi-criteria problems. Appropriate tools that can help designers explore design alternatives and assess the energy performance for choosing the most appropriate alternative are in high demand. In this paper, we present a newly developed integrated parametric Building Information Modeling (BIM)-based system to interact with cloud-based whole building energy performance simulation and daylighting tools to optimize building energy performance using a Multi-Objective Optimization (MOO) algorithm. This system enables designers to explore design alternatives using a visual programming interface, while assessing the energy performance of the design models to search for the most appropriate design. A case study of minimizing the energy use while maximizing the appropriate daylighting level of a residential building is provided to showcase the utility of the system and its workflow.
wos	WOS:000361385100048
keywords	Building energy performance analysis; building information model (bim); parametric modelling; parametric energy simulation; multi-objective optimization
series	eCAADe
email
last changed	2022/06/07 07:58

_id	ascaad2014_021
id	ascaad2014_021
authors	Sushant, Verma and Pradeep Devadass
year	2014
title	Adaptive [skins]: Adaptation through smart systems
source	Digital Crafting [7th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2014 / ISBN 978-603-90142-5-6], Jeddah (Kingdom of Saudi Arabia), 31 March - 3 April 2014, pp. 275-289
summary	The project investigates responsive building skin systems that adapt to the dynamic environmental conditions to regulate internal conditions in a habitable space over different periods of time by exhibiting a state of motion and dynamism. Passive and active building skins are developed using shape memory alloys and pneumatic actuators through investigations of smart systems that integrate smart materials and smart geometries. Nitinol springs are integrated in tensegrity systems to actuate the adaptive behaviour, which forms the passive roof system. Owing to the complexity of the multi-parametric system, genetic algorithms are developed for system optimization and calibrated with physical prototypes at varied scales. The developed systems are tested against two distinct climatic models- New Delhi and Barcelona, and evaluated for performance, based on heat and light, which are quantified as solar gain and illuminance as principles, and daylight factor for evaluation purpose. New tool-sets are developed in the process by combining various digital tools, to create a real-time feedback and memory loop system.
series	ASCAAD
email
last changed	2016/02/15 13:09

_id	ecaade2014_230
id	ecaade2014_230
authors	Tsung-Hsien Wang
year	2014
title	Reasoning Spatial Relationships in Building Information Models using Voxels
doi	https://doi.org/10.52842/conf.ecaade.2014.2.465
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 465-471
summary	This paper investigates a voxel-based approach to automate the space construction of an ill-defined building information model, namely, a building model without specific spatial definitions. The objective is to provide a simplified representation through clustering voxels to reconstruct spaces, with which a spatial topological algorithm is designed to infer the implicit connectivity. This approach is treated as the first step to automate building information exchange for building performance simulation and knowledge-intensive reasoning.
wos	WOS:000361385100049
keywords	Building information modelling; voxel; automatic building information exchange; topological spatial relationship
series	eCAADe
email
last changed	2022/06/07 07:57

_id	caadria2014_254
id	caadria2014_254
authors	Tuker, Cetin and Halil Erhan
year	2014
title	An Architectural Modeling Method for Game Environments and Visualization
doi	https://doi.org/10.52842/conf.caadria.2014.605
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 605–614
summary	Modeling 3D architectural environments for games and design visualization is different than modelling for other purposes, such as for construction. These models include only the outer surfaces as ‘skin’ structures of the facades for rendering for which existing tools are too complex. After interviewing fourteen domain experts and evaluating available modelling tools, we observed a need for new modelling methods for rapid visualizations that leaves redundant model parts out for efficiency. We have developed a surface modelling method and a formalism for modelling architectural environments by slicing a building into layers with strips of façade element sequences. In the first prototype, we focused on parametric structures using userdefined architectonic vocabulary such as voids and solids. We conducted an expert review study with four participants: two user-experience and two domain experts. All participants responded that the method is easy to learn even for non-experts. Based on the tasks completed, they agreed that the method can speed the process of modelling large continuous façades, single-mass single-storey geometries, and repetitive floor layers; they also made suggestions for improvement. The results from the initial evaluation show that the method presented has some merits to be used in practice.
keywords	3D modelling; facade reconstruction; game; visualization
series	CAADRIA
email
last changed	2022/06/07 07:57

_id	ascaad2014_004
id	ascaad2014_004
authors	Afsari, Kereshmeh; Matthew E. Swarts and T. Russell Gentry
year	2014
title	Integrated Generative Technique for Interactive Design of Brickworks
source	Digital Crafting [7th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2014 / ISBN 978-603-90142-5-6], Jeddah (Kingdom of Saudi Arabia), 31 March - 3 April 2014, pp. 49-64
summary	Bricks have been used in the construction industry as a building medium for millennia. Distinct patterns of bricks depict the unique aesthetic intentions found in Roman, Gothic and Islamic architecture. In contemporary practice, the use of digital tools in design has enabled methodologies for creating new forms in architecture. CAD and BIM systems provide new opportunities for designers to create parametric objects for building form generation. In masonry design, there exists an inherent contradiction between traditional patterns in brick design, which are formal and prescribed, and the potential for new patterns generated using design scripting. In addition, current tools do not provide interactive techniques for the design of brickwork patterns that can manage constant changes parametrically, to inform and influence design process, by providing design feedback on the constructive and structural aspects of the proposed brick pattern and geometry. This research looks into the parametric techniques that can be applied to create different kinds of patterns on brick walls. It discusses a methodology for an interactive brickwork design within generative techniques. By integrating data between two computational platforms – the first based on image analysis and the second on parametric modeling, we demonstrate a methodology and application that can generate interactive arbitrary patterns and map it to the brick wall in real-time.
series	ASCAAD
email
last changed	2016/02/15 13:09

_id	ecaade2014_055
id	ecaade2014_055
authors	Ahmet Emre Dincer, Gülen Cagdas and Hakan Tong
year	2014
title	A Digital Tool for Customized Mass Housing Design
doi	https://doi.org/10.52842/conf.ecaade.2014.1.201
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 1, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 201-211
summary	Innovative design approaches are needed for mass housing implementations. Especially increasing interaction between user and designer is major important in the design decisions of these buildings. For this, it is seriously necessary to benefit from technological advances in computational designs, because digital tools like shape grammar, cellular automata, genetic algorithm, l-systems and agent-based models in this field provide not only to save time and to manage the relationships but also to generate many different alternatives. Accordingly, a digital support tool for designers has been developed by using cellular automata approach and scripts of 3Ds Max software. It produces samples of housing design plans which is generated by cellular automata approach according to the data of users' preferences. In this paper the interface and contributions of the developed model are introduced and discussed.
wos	WOS:000361384700020
keywords	Computational design; mass customization; innovative housing design; plugin
series	eCAADe
email
last changed	2022/06/07 07:54

_id	caadria2014_042
id	caadria2014_042
authors	Alam, Jack and Jeremy J. Ham
year	2014
title	Towards a BIM-Based Energy Rating System
doi	https://doi.org/10.52842/conf.caadria.2014.285
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 285–294
summary	Governments in Australia are faced with policy implementation that mandates higher energy efficient housing (Foran, Lenzen & Dey 2005). To this effect, the National Construction Code (NCC) 2013 stipulates the minimum energy performance for residential buildings as 114MJ/m2 per annum or 6 stars on an energy rating scale. Compliance with this minimum is mandatory but there are several methods through which residential buildings can be rated to comply with the deemed to satisfy provisions outlined in the NCC. FirstRate5 is by far the most commonly used simulation software used in Victoria, Australia. Meanwhile, Building Information Modelling (BIM), using software such as ArchiCAD has gained a foothold in the industry. The energy simulation software within ArchiCAD, EcoDesigner, enables the reporting on the energy performance based on BIM elements that contain thermal information. This research is founded on a comparative study between FirstRate5 and EcoDesigner. Three building types were analysed and compared. The comparison finds significant differences between simulations, being, measured areas, thermal loads and potentially serious shortcomings within FirstRate5, that are discussed along with the future potential of a fully BIM-integrated model for energy rating certification in Victoria.
keywords	Building Information Modelling, energy rating, FirstRate 5, ArchiCAD EcoDesigner, Building Energy Model
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	ecaade2024_167
id	ecaade2024_167
authors	Alammar, Ammar; Alymani, Abdulrahman; Jabi, Wassim
year	2024
title	Building Energy Efficiency Estimations with Random Forest for Single and Multi-Zones
doi	https://doi.org/10.52842/conf.ecaade.2024.2.365
source	Kontovourkis, O, Phocas, MC and Wurzer, G (eds.), Data-Driven Intelligence - Proceedings of the 42nd Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2024), Nicosia, 11-13 September 2024, Volume 2, pp. 365–374
summary	Surrogate models (SM) present an opportunity for rapid assessment of a building's performance, surpassing the pace of simulation-based methods. Setting up a simulation for a single concept involves defining numerous parameters, disrupting the architect's creative flow due to extended simulation run times. Therefore, this research explores integrating building energy analysis with advanced machine learning techniques to predict heating and cooling loads (KWh/m2) for single and multi-zones in buildings. To generate the dataset, the study adopts a parametric generative workflow, building upon Chou and Bui's (2014) methodology. This dataset encompasses multiple building forms, each with unique topological connections and attributes, ensuring a thorough analysis across varied building scenarios. These scenarios undergo thermal simulation to generate data for machine learning analysis. The study primarily utilizes Random Forest (RF) as a new technique to estimate the heating and cooling loads in buildings, a critical factor in building energy efficiency. Following that, A random search approach is utilized to optimize the hyperparameters, enhancing the robustness and accuracy of the machine learning models employed later in the research. The RF algorithms demonstrate high performance in predicting heating and cooling loads (KWh/m2), contributing to enhanced building energy efficiency. The study underscores the potential of machine learning in optimizing building designs for energy efficiency.
keywords	Heating and Cooling loads, Topology, Machine learning, Random Forest
series	eCAADe
email
last changed	2024/11/17 22:05

_id	sigradi2014_271
id	sigradi2014_271
authors	Alvarez, Marcelo Paysse
year	2014
title	Relevamiento con drones; el caso Real de San Carlos [Drone mapping; case study: Real de San Carlos]
source	SiGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay - Montevideo 12 - 14 November 2014, pp. 649-652
summary	Cultural landscapes, although complex realities, give shape and meaning to the tangible and intangible components which form the foundations of human cultural background. The architecture of the city of Colonia del Sacramento fits within this context, and builds up a unique cultural landscape inserted in the logic of the historical heritage protection system. This concept, which implies wealth but also conflicts, demands a multidisciplinary approach grounded on a wide vision of this issue. Likewise, this comprehensive approach contributes to reverse and correct the lack of capacity and/or interest to save these examples of man-made landscape (prefabrication, mega-projects of the beginnings of the 20th Century, etc.), which are essential pieces of heritage conservation. Since 1943 the bullring is owned by the Municipality of Colonia. In the last decade the building was fenced to prevent breakdown risk. Still, illegal access occurs quite easily, increasing the risk and potential damage, in addition to the spoilage caused by more than one hundred years of inactivity and lack of maintenance. This paper proposes a method to survey and record the current status of the building, from photos taken by unmanned aerial vehicles (UAV, drones), allowing the registry without the need of direct access to the site. The survey will enable three types of results: series of mapped photographs, 3D models and an interactive platform for aerial view. The aim is to provide valuable and essential documentation for next stages of consolidation works, competitions and eventualy, new uses of the heritage building.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ecaade2014_050
id	ecaade2014_050
authors	Andreas Dieckmann and Peter Russell
year	2014
title	The Truth Is In The Model - Utilizing Model Checking to Rate Learning Success in BIM Software Courses
doi	https://doi.org/10.52842/conf.ecaade.2014.2.417
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 417-426
summary	Model checking is one of the core methodologies of Building Information Modelling (BIM). It allows us to quickly evaluate models based on custom criteria. While there are known examples of the integration of model checking into the course content of design studios, there is no literature on utilizing this methodology to help in the grading process of BIM software courses. This paper presents a project that applies model checking to the task of rating the learning success of students in such a course. The main project goals were increasing the objectivity of the ratings and reducing the time necessary to process a large number of submitted models. The paper describes a possible approach to categorizing and organizing model checks in an educational context and outlines a proven and tested workflow for automating the rating and feedback process.
wos	WOS:000361385100044
keywords	Bim education; grading; evaluation; model checking; automation
series	eCAADe
email
last changed	2022/06/07 07:54

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