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 72

_id ijac20086405
id ijac20086405
authors Ahlquist, Sean; Fleischmann, Moritz
year 2008
title Elemental Methods for Integrated Architectures: Experimentation with Design Processes for Cable Net Structures
source International Journal of Architectural Computing vol. 6 - no. 4, 453-475
summary Tension active systems are compelling architectural structures having an intimate connection between structural performance and the arrangement of material. The direct flow of structural forces through the material makes these systems attractive and unique from an aesthetic point of view, but they are a challenge to develop from a design and an engineering perspective. Traditional methods for solving such structural systems rely on both analog modeling techniques and the use of highly advanced engineering software. The complexity and laborious nature of both processes presents a challenge for iterating through design variations. To experiment with the spacemaking capabilities of tension active systems, it is necessary to design methods that can actively couple the digital simulation with the analog methods for building the physical structure. What we propose is a designer-authored process that digitally simulates the behaviors of tension active systems using simple geometric components related to material and structural performance, activated and varied through elemental techniques of scripting. The logics for manufacturing and assembly are to be embedded in the digital generation of form. The intention is to transform what is a highly engineered system into an architectural system where investigation is as much about the determination of space and environment as it is about the arrangement of structure and material.
series journal
last changed 2009/03/03 07:48

_id ecaade2015_265
id ecaade2015_265
authors Hosey, Shannon; Beorkrem, Christopher, Damiano, Ashley, Lopez, Rafael and McCall, Marlena
year 2015
title Digital Design for Disassembly
source Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 2, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 371-382
doi https://doi.org/10.52842/conf.ecaade.2015.2.371
wos WOS:000372316000043
summary The construction and building sector is now widely known to be one of the biggest energy consumers, carbon emitters, and creators of waste. Some architectural agendas for sustainability focus on energy efficiency of buildings that minimize their energy intake during their lifetime - through the use of more efficient mechanical systems or more insulative wall systems. One issue with these sustainability models is that they often ignore the hierarchy of energy within architectural design. The focus on the efficiency is but one aspect or system of the building assembly, when compared to the effectiveness of the whole, which often leads to ad-hoc ecology and results in the all too familiar “law of unintended consequences” (Merton, 1936). As soon as adhesive is used to connect two materials, a piece of trash is created. If designers treat material as energy, and want to use energy responsibly, they can prolong the lifetime of building material by designing for disassembly. By changing the nature of the physical relationship between materials, buildings can be reconfigured and repurposed all the while keeping materials out of a landfill. The use of smart joinery to create building assemblies which can be disassembled, has a milieu of new possibilities created through the use of digital manufacturing equipment. These tools afford designers and manufacturers the ability to create individual joints of a variety of types, which perform as well or better than conventional systems. The concept of design for disassembly is a recognizable goal of industrial design and manufacturing, but for Architecture it remains a novel approach. A classic example is Kieran Timberlake's Loblolly House, which employed material assemblies “that are detailed for on-site assembly as well as future disassembly and redeployment” (Flat, Inc, 2008). The use of nearly ubiquitous digital manufacturing tools helps designers create highly functional, precise and effective methods of connection which afford a building to be taken apart and reused or reassembled into alternative configurations or for alternative uses. This paper will survey alternative energy strategies made available through joinery using digital manufacturing and design methods, and will evaluate these strategies in their ability to create diassemblable materials which therefore use less energy - or minimize the entropy of energy over the life-cycle of the material.
series eCAADe
email
more https://mh-engage.ltcc.tuwien.ac.at/engage/ui/watch.html?id=4075520a-6fe7-11e5-bcc8-f7d564ea25ed
last changed 2022/06/07 07:50

_id sigradi2008_175
id sigradi2008_175
authors Knight, Terry; Larry Sass, Kenfield Griffith, Ayodh Vasant Kamath
year 2008
title Visual-Physical Grammars
source SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary This paper introduces new visual-physical design grammars for the design and manufacture of building assembly systems that provide visually rich, culturally resonant design variations for housing. The building systems are intended to be tailored for particular cultures and communities by incorporating vernacular, decorative design into the assembly design. Two complementary areas of computational design research are brought together in this work: shape grammars and digital fabrication. The visual or graphic aspects of the research are explored through shape grammars. The physical design and manufacturing aspects are explored through advanced digital design and fabrication technologies and, in particular, build on recent work on mono-material assemblies with interlocking components that can be fabricated with CNC machines and assembled easily by hand on-site (Sass, 2007). This paper describes the initial, proof-of-concept stage of this work: the development of an automated, visual-physical grammar for an assembly system based on a vernacular language of Greek meander designs. A shape grammar for the two-dimensional Greek meander language (Knight, 1986) was translated into a three-dimensional assembly system. The components of the system are uniquely designed, concrete “meander bricks” (Figure 1). The components have integrated alignment features so that they can be easily fitted and locked together manually without binding materials. Components interlock horizontally to form courses, and courses interlock vertically in different ways to produce a visual variety of meander walls. The assembly components were prototyped at desktop scale with a layered manufacturing machine to test their appearance after assembly and their potential for design variations (Figure 2). Components were then evaluated as full-scale concrete objects for satisfaction of physical constraints related to concrete forming and component strength. The automated grammar (computer program) for this system generates assembly design variations with complete CAD/CAM data for fabrication of components formed from layered, CNC cut molds. Using the grammar, a full-scale mockup of a corner wall section was constructed to assess the structural, material, and aesthetic feasibility of the system, as well as ease of assembly. The results of this study demonstrate clearly the potentials for embedding visual properties in structural systems. They provide the foundations for further work on assembly systems for complete houses and other small-scale structures, and grammars to generate them. In the long-term, this research will lead to new solutions for economical, easily manufactured housing which is especially critical in developing countries and for post-disaster environments. These new housing solutions will not only provide shelter but will also support important cultural values through the integration of familiar visual design features. The use of inexpensive, portable digital design and fabrication technologies will allow local communities to be active, cooperative participants in the design and construction of their homes. Beyond the specific context of housing, visual-physical grammars have the potential to positively impact design and manufacture of designed artifacts at many scales, and in many domains, particularly for artifacts where visual aesthetics need to be considered jointly with physical or material requirements and design customization or variation is important.
keywords Shape grammar, digital fabrication, building assembly, mass customization, housing
series SIGRADI
email
last changed 2016/03/10 09:54

_id acadia11_152
id acadia11_152
authors Rael, Ronald; San Fratello, Virginia
year 2011
title Developing Concrete Polymer Building Components for 3D Printing
source ACADIA 11: Integration through Computation [Proceedings of the 31st Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)] [ISBN 978-1-6136-4595-6] Banff (Alberta) 13-16 October, 2011, pp. 152-157
doi https://doi.org/10.52842/conf.acadia.2011.152
summary The creation of building components that can be seen as sustainable, inexpensive, stronger, recyclable, customizable and perhaps even reparable to the environment is an urgent, and critical focus of architectural research. In the U.S. alone, the construction industry produced 143.5 million tons of building-related construction and demolition debris in 2008, and buildings, in their consumption of energy produce more greenhouse gasses than automobiles or industry.Because the inherent nature of 3D printing opens new possibilities for shaping materials, the process will reshape the way we think about architectural building components. Digital materiality, a term coined by Italian and Swiss architects Fabio Gramazio and Matthias Kohler, describes materiality increasingly enriched with digital characteristics where data, material, programming and construction are interwoven (Gramazio and Kohler, 2008). The research aspires towards this classification through the use of parametric modeling tools, analytic software and quantitative and qualitative analysis. Rapid prototyping, which is the automatic construction of physical objects using additive manufacturing technology, typically employs materials intended for the immediate analysis of form, scale, and tactility. Rarely do the materials used in this process have any long-term value, nor does the process - except in rare cases with expensive metal prototyping - have the ability to create actual and sustainable working products. This research intends to alter this state of affairs by developing methods for 3D printing using concrete for the production of long-lasting performance-based components.
series ACADIA
type work in progress
email
last changed 2022/06/07 08:00

_id acadia08_182
id acadia08_182
authors Gibson, Michael; Kevin R. Klinger; Joshua Vermillion
year 2008
title Constructing Information: Towards a Feedback Ecology in Digital Design and Fabrication
source Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 182-191
doi https://doi.org/10.52842/conf.acadia.2008.182
summary As strategies evolve using digital means to navigate design in architecture, critical process-based approaches are essential to the discourse. The often complex integration of design, analysis, and fabrication through digital technologies is wholly reliant upon a process-basis necessitating the use of a design feedback loop, which reinforces critical decision-making and challenges the notions of how we produce, visualize, and analyze information in the service of production and assembly. Central to this process-based approach is the effective and innovative integration of information and the interrogation of material based explorations in the making of architecture. This fabrication ‘ecology’ forces designers to engage complexity and accept the unpredictability of emergent systems. It also exposes the process of working to critique and refine feedback loops in light of complex tools, methods, materials, site, and performance considerations. In total, strategies for engaging this ‘ecology’ are essential to accentuate our present understanding of environmental design and theory in relation to digital processes for design and fabrication. ¶ This paper recounts a design/fabrication seminar entitled “Constructing Information” in which architecture students examined an environmental design problem by way of the design feedback loop, where their efforts in applying digital design and fabrication methods were driven explicitly by material and site realities and where their work was executed, installed, and critically explored in situ. These projections raise important questions about how information, complexity, and context overlay and merge, and underscore the critical potential of visual, spatial, and material effects as part of a fabrication-oriented design process.
keywords Digital Fabrication; Ecology; Environment; Feedback; Performance
series ACADIA
last changed 2022/06/07 07:51

_id bbc9
id bbc9
authors Aeck, Richard
year 2008
title Turnstijl Houses & Cannoli Framing
source VDM Verlag Dr. Muller Aktiengesellschaft Co. KG, Germany

ISBN: 3639078470 ISBN-13: 9783639078473

summary This work presumes that integrating modeling tools and digital fabrication technology into architectural practice will transform how we build the detached house. Single-family houses come in all shapes and sizes, and in doing so, imply variation as well in certain materials, methods, and lighter classes of structure. Ultimately, houses are extensions, if not expressions, of those dwelling within, yet our attempts to produce appealing manufactured houses have prioritized standardization over variation and fall short of this ideal. Rather than considering new offerings born of the flexibility and precision afforded by digital production, sadly, today’s homebuilders are busy using our advancing fabrication technology to hasten the production of yesterday’s home. In response to such observations, and drawing upon meta-themes (i.e., blending and transition) present in contemporary design, this study proposes a hybrid SIP/Lam framing system and a corresponding family of houses. The development of the Cannoli Framing System (CFS) through 3D and physical models culminates in the machining and testing of full-scale prototypes. Three demonstrations, branded the Turnstijl Houses, are generated via a phased process where their schema, structure, and system geometry are personalized at their conception. This work pursues the variation of type and explores the connection between type and production methodology. Additional questions are also raised and addressed, such as how is a categorical notion like type defined, affected, and even “bred”?
keywords Digital Manufacturing, Type, Typology, CNC, SIP, SIPs, Foam, PreFab, Prefabrication, Framing, Manufactured House, Modular, Packaged House, Digital, Plywood, Methodology
series thesis:MSc
type normal paper
email
more http://branchoff.net
last changed 2010/11/16 08:29

_id caadria2008_27_session3b_221
id caadria2008_27_session3b_221
authors Al-Haddad, Tristan
year 2008
title Parametric modulations in Masonry
source CAADRIA 2008 [Proceedings of the 13th International Conference on Computer Aided Architectural Design Research in Asia] Chiang Mai (Thailand) 9-12 April 2008, pp. 221-228
doi https://doi.org/10.52842/conf.caadria.2008.221
summary The focus of the research presented in this paper asks how a designer can create a flexible system of physical making which can accommodate multiple programmatic functions within a smooth whole, rather than creating an a priori singular formal object. This adaptable system of construction works through the development of an intelligent CAD model that can be mapped to a flexible manufacturing mechanism, i.e. a reconfigurable mold. This system of manufacturing can be used to cast totally unique solid modules without creating a unique mold for each part by manipulating the topological structure of the system. This approach takes the notion of mass-customization beyond the expensive and unsustainable one-offs that the design world has seen recently, and into a new paradigm of a sustainable, economically viable world of mass-customizable form and space.
keywords Parametrics, Variability, Reconfigurability, UHPC, Topology, Molding, Casting
series CAADRIA
email
last changed 2022/06/07 07:54

_id acadia11_242
id acadia11_242
authors Braumann, Johannes; Brell-Cokcan, Sigrid
year 2011
title Parametric Robot Control: Integrated CAD/CAM for Architectural Design
source ACADIA 11: Integration through Computation [Proceedings of the 31st Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)] [ISBN 978-1-6136-4595-6] Banff (Alberta) 13-16 October, 2011, pp. 242-251
doi https://doi.org/10.52842/conf.acadia.2011.242
summary Robots are gaining popularity in architecture. Snøhetta has recently purchased their own industrial robot, becoming one of the first architectural offices to adopt robot technology. As more and more architects are exposed to robotic fabrication, the need for easy interoperability, integration into architectural design tools and general accessibility will increase. Architects are discovering that industrial robots are much more than kinematic machines for stacking bricks, welding or milling - they are highly multifunctional and can be used for a huge variety of tasks. However, industry standard software does not provide easy solutions for allowing direct robot control right from CAAD (Computer Aided Architectural Design) systems. In this paper we will discuss existing methods of programming industrial robots, published architectural results (Gramazio and Kohler 2008) and the design of a new user interface that allows intuitive control of parametric designs and customized robotic mass production, by integrating CAM (Computer Aided Manufacturing) functions into CAAD.
keywords robot programming; parametric design; mass customization; grasshopper component design; fabrication; robot milling; digital architecture
series ACADIA
type normal paper
email
last changed 2022/06/07 07:54

_id ecaade2008_005
id ecaade2008_005
authors Breen, Jack; Stellingwerff, Martijn
year 2008
title Capital A to Z
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 759-766
doi https://doi.org/10.52842/conf.ecaade.2008.759
summary Throughout the history of architecture, the Capital – the intermediate between a column and the beam or surface it supports – has been a recurring feature in architectural composition and articulation. In this paper we describe results and findings from the Capital A to Z exercise within the Ornamatics Course from the TU-Delft MSc curriculum. We will show how this exercise combines various digital and physical processes for form finding and how further insights can come from the actual production of models and prototypes. Conclusions will be drawn regarding the integrated educational setup and regarding the influence of different methods and tools on the design process and the design results.
keywords Computer aided manufacturing and modelling, composition, prototyping, ornamatics, education-based research
series eCAADe
email
last changed 2022/06/07 07:54

_id acadia08_458
id acadia08_458
authors Hemsath, Timothy; Robert Williams; Ronald Bonnstetter; Leen-Kiat Soh
year 2008
title Digital CADCAM Pedagogy Model: Intelligent Inquiry Education
source Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 458-463
doi https://doi.org/10.52842/conf.acadia.2008.458
summary Prototype manufacturing as an educational tool has been very successful at the college level in architecture and engineering design. This paper discusses an innovative inquiry-based learning approach rather than the problem-based learning models commonly utilized by other similar programs. For example, several research-funded technology projects (e.g., Cappelleri et al. 2007) look at involving students in problem-based learning exercises (e.g., building robots); however, these exercises (while providing valuable experiences) have predetermined outcomes ingrained by the teachers, the project structure, and the components used to construct the devices. Therefore, inquisitive and creative problem solving is limited to the “kit-of-parts” in their approach to solving the problem. The inquiry-based CADCAM pedagogy model is more concerned with the process of solving a problem through the vehicle of prototyping than with the specificity of the design project itself. This approach has great potential. First, the need to solve the problem drives learning on multiple levels, integrating interdisciplinary ideas into the problem and solution. Second, the problem interlocks disciplines through inquiry knowledge building in team exercises. Finally, it encourages diversity and flexibility by allowing students to look at problems from multiples perspectives and points of view.
keywords CAD; Education; Evaluation; Pedagogy; Rapid Prototyping
series ACADIA
last changed 2022/06/07 07:49

_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 ecaade2008_009
id ecaade2008_009
authors Lyon , Eduardo R.
year 2008
title Knowledge Based Design and Digital Manufacturing:
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 625-632
doi https://doi.org/10.52842/conf.ecaade.2008.625
summary This research explores new ways to integrate manufacturing knowledge in to design phases. Through the use of design for manufacturing (DfM) concept, and looking at relations between its potential application in component design and its implementation using digital manufacturing technologies, the author implemented a DfM model that varies from previous models by incorporated learning in the process. This process was based on the incremental development and refinement of design heuristics and metrics. The DfM model developed in this research is a process model to be implemented as a framework within educational settings. The final purpose is to provide better foundational constructs for design education and to improve teaching approaches that integrate design and manufacturing.
keywords Design Computing, Design for manufacturing, Knowledge Based Design, Digital Manufacturing
series eCAADe
email
last changed 2022/06/07 07:51

_id acadia08_382
id acadia08_382
authors Peters, Brady; Xavier De Kestelier
year 2008
title Rapid Prototyping and Rapid Manufacturing at Foster + Partners
source Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 382-389
doi https://doi.org/10.52842/conf.acadia.2008.382
summary Over the last 15 years, rapid prototyping has been an integral part of the design process in the car and aerospace industry (Brad Fox 2006). Recently the architecture profession has started to use these techniques in its design process (Greg Corke 2006), and some architecture schools have begun experimenting with these technologies. ¶ Foster + Partners have been one of the first architecture practices to fully integrate rapid prototyping within its design process. The technology was initially seen as a sketch model making tool in the early stages of the design, in particular for projects with complicated geometries. It surpassed this purpose within a year and it is now seen an essential design tool for many projects and in for many project stages. The office’s rapid prototyping department now produces about 3500 models a year. ¶ Besides, or perhaps because of, rapid prototyping, Foster + Partners have started to experiment with rapid manufacturing. This first was done through the design and manufacture of a Christmas tree for the charity organisation Save the Children.
keywords Complex Geometry; Design; Generative; Process; Rapid Prototyping
series ACADIA
last changed 2022/06/07 08:00

_id ecaade2008_045
id ecaade2008_045
authors Pinochet, Diego; Labarca, Claudio; Burdiles, Macarena
year 2008
title Dichotomy between Digital Project and Real Project Execution
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 587-592
doi https://doi.org/10.52842/conf.ecaade.2008.587
summary This paper relates the experience of the author in finding digital tools to generate diversity of results in the design process of one project, aiming to generate base tools developed in the form of script codes, that may operate in diverse fields of action reacting to the diverse variables characteristics of each place, The development of the script is what allows this to happen.
keywords Digital Design: Manufacturing, Scripting, Programming, CAD + CAM
series eCAADe
email
last changed 2022/06/07 08:00

_id ecaade2008_010
id ecaade2008_010
authors R. Lyon , Eduardo
year 2008
title CAD and CAM Systems Integration:
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 837-844
doi https://doi.org/10.52842/conf.ecaade.2008.837
summary CAM systems traduce design information from CAD systems in to different manufacturing routines in order to produce NC code for CNC machinery. The output from the CAM software is usually a simple text file of G and M code, usually containing thousand of lines of code. Later this code is transferred to a machine tool using a direct numerical control (DNC) program. This translation process becomes extremely important in developing a digital design and fabrication approach. Consequently the aim in this research is; to investigate CAD-CAM workflow; to analyze final product deviation from design intent; and to determine where in the workflow, and how design strategies and design decisions correlates to manufacturing results.
keywords Design Computing, CAD and CAM integration, Digital fabrication
series eCAADe
email
last changed 2022/06/07 08:00

_id caadria2008_64_session6b_529
id caadria2008_64_session6b_529
authors Rügemer, Jörg
year 2008
title Form Follows Tool: How the mere existence of a 2D laser cutter does influences architectural design in education?
source CAADRIA 2008 [Proceedings of the 13th International Conference on Computer Aided Architectural Design Research in Asia] Chiang Mai (Thailand) 9-12 April 2008, pp. 529-535
doi https://doi.org/10.52842/conf.caadria.2008.529
summary The paper is aimed to examine the influence of a digital laser cutter on the design process within the College of Architecture and Planning, University of Utah, Salt Lake City. The tool functions as a peripheral output device within a simple “CAD-CAM” model manufacturing process in the area of architectural model making. It is a 2D laser cutter, accessible to the students since four years. The paper has a critical look at how the machine’s availability, its possibilities, as well as its promising time saving potential has changed the way students develop their design and process their projects. Rapid prototyping is becoming more and more an integral and important part of our design studios. With the adoption of the laser cutter, the model making procedure has changed from a relatively time-consuming, but immediately controllable process, to a procedure where one has to spatially re-think the elements that need to be produced, in order to adapt to the necessary digital workflow or process.
keywords 2D Laser Cutter, Digital Design Development, Digital Model Manufacturing Process, Analogue Model Assemblage
series CAADRIA
email
last changed 2022/06/07 07:56

_id cf2011_p109
id cf2011_p109
authors Abdelmohsen, Sherif; Lee Jinkook, Eastman Chuck
year 2011
title Automated Cost Analysis of Concept Design BIM Models
source Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 403-418.
summary AUTOMATED COST ANALYSIS OF CONCEPT DESIGN BIM MODELS Interoperability: BIM models and cost models This paper introduces the automated cost analysis developed for the General Services Administration (GSA) and the analysis results of a case study involving a concept design courthouse BIM model. The purpose of this study is to investigate interoperability issues related to integrating design and analysis tools; specifically BIM models and cost models. Previous efforts to generate cost estimates from BIM models have focused on developing two necessary but disjoint processes: 1) extracting accurate quantity take off data from BIM models, and 2) manipulating cost analysis results to provide informative feedback. Some recent efforts involve developing detailed definitions, enhanced IFC-based formats and in-house standards for assemblies that encompass building models (e.g. US Corps of Engineers). Some commercial applications enhance the level of detail associated to BIM objects with assembly descriptions to produce lightweight BIM models that can be used by different applications for various purposes (e.g. Autodesk for design review, Navisworks for scheduling, Innovaya for visual estimating, etc.). This study suggests the integration of design and analysis tools by means of managing all building data in one shared repository accessible to multiple domains in the AEC industry (Eastman, 1999; Eastman et al., 2008; authors, 2010). Our approach aims at providing an integrated platform that incorporates a quantity take off extraction method from IFC models, a cost analysis model, and a comprehensive cost reporting scheme, using the Solibri Model Checker (SMC) development environment. Approach As part of the effort to improve the performance of federal buildings, GSA evaluates concept design alternatives based on their compliance with specific requirements, including cost analysis. Two basic challenges emerge in the process of automating cost analysis for BIM models: 1) At this early concept design stage, only minimal information is available to produce a reliable analysis, such as space names and areas, and building gross area, 2) design alternatives share a lot of programmatic requirements such as location, functional spaces and other data. It is thus crucial to integrate other factors that contribute to substantial cost differences such as perimeter, and exterior wall and roof areas. These are extracted from BIM models using IFC data and input through XML into the Parametric Cost Engineering System (PACES, 2010) software to generate cost analysis reports. PACES uses this limited dataset at a conceptual stage and RSMeans (2010) data to infer cost assemblies at different levels of detail. Functionalities Cost model import module The cost model import module has three main functionalities: generating the input dataset necessary for the cost model, performing a semantic mapping between building type specific names and name aggregation structures in PACES known as functional space areas (FSAs), and managing cost data external to the BIM model, such as location and construction duration. The module computes building data such as footprint, gross area, perimeter, external wall and roof area and building space areas. This data is generated through SMC in the form of an XML file and imported into PACES. Reporting module The reporting module uses the cost report generated by PACES to develop a comprehensive report in the form of an excel spreadsheet. This report consists of a systems-elemental estimate that shows the main systems of the building in terms of UniFormat categories, escalation, markups, overhead and conditions, a UniFormat Level III report, and a cost breakdown that provides a summary of material, equipment, labor and total costs. Building parameters are integrated in the report to provide insight on the variations among design alternatives.
keywords building information modeling, interoperability, cost analysis, IFC
series CAAD Futures
email
last changed 2012/02/11 19:21

_id 5d77
id 5d77
authors Adriane Borda; Neusa Félix; Janice de Freitas Pires; Noélia de Moraes Aguirre.
year 2008
title MODELAGEM GEOMÉTRICA NOS ESTÁGIOS INICIAIS DE APRENDIZAGEM DA PRÁTICA PROJETUAL EM ARQUITETURA. GEOMETRIC MODELING IN THE EARLY STAGES OF LEARNING PRACTICE ARCHITECTURAL DESIGN.
source 12th Iberoamerican Congress of Digital Graphics, SIGRADI, 2008, Havana. SIGRADI, Proceedings of the 12th Iberoamerican Congress of Digital Graphics.. Havana : Ministerio de Educacion Superior, 2008. p. 434-438.
summary This work invests on delimitation of a Geometric Modeling study program directed to students at the initial stages of Architecture. It is considered that the studies promote a qualified control of the form based on recognition of parameters which define it, moreover it also allows the enlargement of the students geometric vocabulary, important to the architectural design activities. In this way, the program advances on the appropriation of new concepts which surround the investigations on architectural design processes, such as the concept of shape grammar. Observing analysis and architectural composition practices based on such concept, contents of geometric modeling which are already being used in the context of post-graduation are identified to be transposed to the graduation context, along with the initial teaching practices of architectural design. The results refer to making the didactic material available, these materials have the objective of building references for the development of design practice which explore the reflection about the processes of creation and composition of architectural form in their geometric aspects.
keywords Architecture, Geometric Modeling, Shape grammar, Teaching/Learning
series SIGRADI
type normal paper
email
last changed 2016/03/10 09:47

_id acadia08_066
id acadia08_066
authors Ahlquist, Sean; Moritz Fleischmann
year 2008
title Material & Space: Synthesis Strategies based on Evolutionary Developmental Biology
source Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 66-71
doi https://doi.org/10.52842/conf.acadia.2008.066
summary A material system can be defined as a set of self-organized materials, defining a certain spatial arrangement. In architecture, this material arrangement acts as a threshold for space, though space often only appears as a by-product of the material organization. Treating space as a resulting, therefore secondary, independent product minimizes the capacity to generate architecture that is astutely aware of concerns of functionality, environment and energy. An effective arrangement of material can only be determined in relation to the spaces that it defines. When proposing a more critical approach, a material system can be seen as an intimate inter-connection and reciprocal exchange between the material construct and the spatial conditions. It is necessary to re-define material system as a system that coevolves spatial and material configurations through analysis of the resultant whole, in a process of integration and evaluation. ¶ With this understanding of material system comes an expansion in the number of criteria that are simultaneously engaged in the evolution of the design. The material characteristics, as well as the spatial components and forces (external and internal), are pressures onto the arrangement of material and space. ¶ This brings a high degree of complexity to the process. Biological systems are built on methods that resolve complex interactions through sets of simple yet extensible rules. Evolutionary Developmental Biology explains how growth is an interconnected process of external forces registering fitness into a fixed catalogue of morphological genetic tools. Translating the specific framework for biological growth into computational processes, allows the pursuit of an architecture that is fully informed by the interaction of space and material.
keywords Biology; Computation; Material; Parametric; System
series ACADIA
last changed 2022/06/07 07:54

_id cdc2008_329
id cdc2008_329
authors Araya, Sergio
year 2008
title Algorithmic Transparency
source First International Conference on Critical Digital: What Matters(s)? - 18-19 April 2008, Harvard University Graduate School of Design, Cambridge (USA), pp. 329-340
summary This paper describes the procedures developed in the creation of an innovative technique to design and manufacture composite materials with transparency and translucency properties. The long term objective of this research is to develop a method to design and fabricate architectural elements. The immediate objective is to develop the methodology and procedural techniques to design and manufacture a composite material with controlled non homogeneous transparency properties. A secondary objective is to explore different levels of “embedded behavior” or responsiveness by using these techniques to combine different physical material properties on new designed “smarter” and “responsive” composite materials.
email
last changed 2009/01/07 08:05

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