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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_id	sigradi2008_103
id	sigradi2008_103
authors	Baltazar, Ana Paula; Maria Lucia Malard, Silke Kapp, Pedro Schultz
year	2008
title	From physical models to immersive collaborative environments: testing the best way for homeless people to visualise and negotiate spaces
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	This paper describes an experiment to investigate the best way for lay people to use representation to visualise and negotiate space. It was motivated by our observations in workshops for digital inclusion in the context of a housing project for a homeless association. Computers were used to make it easier for the community to understand and change the spaces in real time. The first workshops proved that our approach was efficient as an exercise but not certainly effective concerning the understanding of spatial qualities. So we have designed an experiment to compare the usability of different media in participatory design processes. For that we have adapted the ‘Usability’ methodology, which is fully described in the paper. We started with three main questions. The first concerned the effectiveness of different media to represent spatial quality; the second concerned the best way for novices to approach space, whether by refurbishing a pre-existing space or by starting from the scratch; and the third concerned the effectiveness of negotiation by means of discourse and by means of or action. We also had two main hypothesis: one coming from research on digital environments and stereo visualisation, indicating that the more people feel immersed in the represented environment the more they are able to correlate it with physical space; and the other coming from our own observations in the participatory design workshops, in which the collective decision-making was manipulated by those people with more advanced communication skills who use their ability in an authoritative way regardless of the relevance of what they have to say. This paper describes the whole experiment, which was an exercise of spatial negotiation in 5 versions. In the first version we provided fixed digital views of a room in plan and axonometry; for another two versions we provided a physical model of the room in 1:10 scale, with some pieces of the existing furniture in different scales. This was done to check if people were just playing with a puzzle or actually grasping the correspondence between representation and the object or the space represented. One version proposes refurbishment and the other starts from the scratch. And the last two versions repeated the same task made with the physical model, but this time using a 3D interactive digital model. People were required not only to organise the furniture in the space but also to build a full scale cardboard structure and organise the real furniture reproducing their proposed model. Their comments on the spaces they had built confronted with what they had imaged when working with the model has enabled us to compare the different models, as also the different ways of negotiating spaces. This paper describes this experiment in detail concluding that 3D digital interactive models are far more effective than physical models and 2D drawings; when negotiation happens by means of action it provides more creative results than when the discoursive practice prevails; people are more creative when they start something from scratch, though they spend more time. The results of this experiment led us to formulate a new hypothesis leading to the development of an immersive collaborative environment using stereoscopy.
keywords	Visualisation, negotiation, immersive environment, digital interfaces, homeless people
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ijac20076301
id	ijac20076301
authors	Barros, Diana Rodriguez; Castane, Dora; Stipech, Alfredo
year	2008
title	Hypermedia urban models in virtual environments: Case studies of central areas of Argentine cities
source	International Journal of Architectural Computing vol. 6 - no. 3, pp. 221-241
summary	The virtual models of urban fragments recreate environments of simulation and analysis with a great degree of realism. This paper addresses a review of case studies in which Argentine researchers from three different university centres have worked jointly. We examine spatial databases from a representational and communicational perspective as virtual 3D, walkthrough, and interconnected urban models. Our aim is to explore, recognise and analyse advances in this direction, and to apply them to the development of virtual models of central areas in the Argentine cities of Buenos Aires, Rosario, Santa Fe and Mar del Plata. We present the methodology used to analyse the design, production and management processes of the virtual model as well as the results of our research. We acknowledge that these models are consistent non-traditional instruments of analysis which complement the knowledge of the city and facilitate spatial comprehension. Finally, we review predominant tendencies.
series	journal
last changed	2008/10/14 14:00

_id	ecaade2008_083
id	ecaade2008_083
authors	Belcher, Daniel; Johnson, Brian R.
year	2008
title	ARchitectureView
doi	https://doi.org/10.52842/conf.ecaade.2008.561
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 561-568
summary	We present a system for viewing architectural building models – specifically Building Information Modeling (BIM) models – in 3D using an Augmented Reality Tangible User Interface (TUI) and a Magic Lens interaction metaphor. ARchitectureView is meant to facilitate communication and collaboration around a shared model. We present the system overview and a number of use scenarios in which the interface would serve to improve communication across disciplines and varied technical backgrounds, while supporting a rich and coherent common understanding.
keywords	Augmented Reality, Building Information Modeling, Magic Lens, Tangible User Interface
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2008_186
id	ecaade2008_186
authors	Bourdakis, Vassilis
year	2008
title	Low Tech Approach to 3D Urban Modeling
doi	https://doi.org/10.52842/conf.ecaade.2008.959
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 959-964
summary	Over the last decade various examples of urban 3D models have been created employing various techniques for data collection and model building. The problems faced are well documented, issues of accuracy, complexity and utility of the models has also been addressed. This paper presents a low tech approach to accurate city modeling focusing on engineering applications, browsing/experiencing applications as well as multi-layering time based analyses, historical info overlaying for use in interactive real time applications (museum exhibitions, research projects for behavioral patterns of users in 3D urban environments, marketing, tourism, etc). The pros and cons of the proposed methodology are analyzed and ways forward suggested.
keywords	Urban modeling, photogrammetric techniques, 3D modeling
series	eCAADe
email
last changed	2022/06/07 07:54

_id	caadria2008_81_session7b_662
id	caadria2008_81_session7b_662
authors	Champion, Erik; Andrew Dekker, Petra Thomas
year	2008
title	Lazy Panorama Monopoly Table: Take Your City for a Spin
doi	https://doi.org/10.52842/conf.caadria.2008.662x.u7o
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. 662-669
summary	While conventional information displays are still effective, a lack of integration between descriptive and contextual information means they cannot be used independently of additional external information. New digital systems such as Google Maps are increasing in popularity. Unfortunately these present some limitations in terms of understanding both route and survey information, and in particular navigation and orientation, such as intuitively understanding a plan view no matter which way one is facing, so visitors can quickly and intuitively learn how to get to specific buildings or to specific facilities. Digital systems may also alienate older and non computer literate users; and they display contextual information inside an interface which limits the possible range of interaction methods offered by physical interaction. Our solution was to create a 3D physical model that one could spin, which would in turn display digital panoramas that spun in rotational alignment with the physical city model. Further, the user could place category tokens in intersections of the city model, which would bring up digital panoramas on the screen and highlight facilities linked to the category chosen. Rotating the token would also rotate the digital panorama.
keywords	Urban visualization, panorama, tangible user interface, phidgets
series	CAADRIA
type	normal paper
email
last changed	2022/06/07 07:50

_id	caadria2008_59_session6a_487
id	caadria2008_59_session6a_487
authors	Chevrier, C.; J.P. Perrin
year	2008
title	Interactive parametric modelling: POG a tool the cultural heritage monument 3D reconstruction
doi	https://doi.org/10.52842/conf.caadria.2008.487
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. 487-493
summary	Historic monument and archaeological site 3D reconstruction is nowadays often required for many applications (scientific and architectural studies, virtual visits for a better understanding of the monument, etc). This task is very time-consuming. Automating the modelling of the most common components could ease this 3D work and produce accurate, consistent and re-usable models. Based upon compound rules of architectural elements but also upon various other data sources such as photographs and 3D laser scans, we have conceived and developed an interactive tool for virtual 3D reconstruction of heritage monuments. It allows a quick modelling and accurate adjustments to the measured data. This tool could be a great help for architects and archaeologists. Research first has began with the study of classical architecture, and has gone on with other architectural styles. Architectural elements are described with parametric data, then generated by our tool. Our main application context was the town of Nancy in France where there are lots of classical architecture buildings which allow us to test our tool. It will be further extended to be applied to other architectural styles and will be combined with photogrammetry methods.
keywords	parametric modelling, cultural heritage, 3D model
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	ecaade2008_049
id	ecaade2008_049
authors	Dokonal, Wolfgang
year	2008
title	Creating and Using 3D City Models
doi	https://doi.org/10.52842/conf.ecaade.2008.223
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 223-230
summary	City modelling is a topic which has been on the agenda for a long time. Today crucial questions concerning the creation of a city model are resolved. The vision of the automatic generation of the 3D geometry of a city out of high resolution digital aerial images is a reality now. These new developments decreased the cost for creating and maintaining a 3D city model of a complete city significantly. This paper wants to outline the ‘history’ of 3D city models and show recent developments in this field. An overview about current applications and uses in this field in Austria and the implementation into daily work is shown with examples (Graz and Vienna city models). Additionally the new developments like Street View in Google Earth or Bird’s Eye in Virtual earth are discussed in relation to their 3D ‘relatives’.
keywords	3Dcity Models, GIS, Google Earth, Virtual Earth
series	eCAADe
email
last changed	2022/06/07 07:55

_id	ijac20076106
id	ijac20076106
authors	Donath, Dirk; Bohme, Luis Felipe Gonzalez
year	2008
title	Constraint-Based Design in Participatory Housing Planning
source	International Journal of Architectural Computing vol. 6 - no. 1, pp. 97-117
summary	We introduce some novel ideas for a constraint-based design strategy to support participatory housing planning processes in Latin America. The following lines intend to open the discussion on the requirements and effect of the computer implementation of a constraint satisfaction approach to solve elementary design problems in architectural practice. The case study applies to the building massing design problem posed by the Chilean urban regulatory framework that addresses single-family affordable houses. Two different implementation criteria are being tested in an ongoing series of trials providing further considerations. One prototype uses MAXON's CINEMA4D XPRESSO® visual scripting environment to set up a semi-automated design environment which allows users to edit one feature-based 3D model of massing alternative at a time. The other prototype uses ILOG's OPL STUDIO® constraint programming environment to achieve fully automated search and 2D visualization of all possible solution alternatives to separate subdomains of the building massing design problem.
series	journal
last changed	2008/06/18 08:12

_id	ecaade2008_167
id	ecaade2008_167
authors	Gatermann, Harald
year	2008
title	Location-based 4D-Reconstruction
doi	https://doi.org/10.52842/conf.ecaade.2008.945
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 945-950
summary	Architects do not only need 3D-models for the planning process, but as well for the process of visualizing information. In this projects we as architects were asked to show the lifetime-process of an industrial complex (a colliery - now used as industrial museum) over a period of more than one hundred years: the growth of the complex, the demolition of certain buildings, the network between the collieries in the neighbourhood. Google Earth as software platform allows recipients from all over the world to get an insight in four dimensions: the location based context including the time axis. For showing the world under the surface interactive animations or films are included.
keywords	3d-model, 4d-model, city-model, timeline, location-based
series	eCAADe
email
last changed	2022/06/07 07:51

_id	ecaade2008_158
id	ecaade2008_158
authors	Kaga, Atsuko; Sugawara, Shihomi
year	2008
title	Research on the Visualization for Analyzing City Changes
doi	https://doi.org/10.52842/conf.ecaade.2008.939
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 939-944
summary	To perceive such changes of city space visually, a three-dimensional (3D) city space model is effective. The use of buildings in a city space is complex, reflecting the number of stories, and the number of stories in many cases. Furthermore, environmental parameters, such as opening a shop developed for conditions of the location, the existence of a building which is easy to divert to some other purpose, a managerial layer, and the whole country, is closely related to city change. A city change can be analyzed from various perspectives if such information can also be accumulated and displayed. If it is expressed in two dimensions, it will be restricted, but if expressed in 3D, the use situation of city space can be grasped quickly. Commercial 3D GIS software is useful for visualizing such a 3D city space model while referring to attribute information. However, such software is expensive and its use is restricted. For this study, highly extensible 3D modeling software is used to develop a technique for visualizing city spaces using its attribute information. Then the developed script is applied to an actual city model in Japan.
keywords	City Analysis, Urban design, 3D-model, City Visualization
series	eCAADe
email
last changed	2022/06/07 07:52

_id	sigradi2008_081
id	sigradi2008_081
authors	Kirschner, Ursula
year	2008
title	Study of digital morphing tools during the design process - Application of freeware software and of tools in commercial products as well as their integration in AutoCAD
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	This research work examines methods of experimental designing with CAAD in a CAD laboratory with architecture students as the testing persons. Thereby the main focus is on the early phase of finding forms, in which different techniques with digital media are tried out in the didactic architectural design lessons. In these work have been traced the influences of the media employed on the design processes and combined the approaches of current CAAD research with aspects from classic design theory. For mathematical rules of proportion, atmospheric influence factors and analogy concepts in architecture, I have developed design methods which have been applied and verified in several series of seminars. (Kirschner, U.: 2000, Thesis, a CAAD supported architectural design teaching, Hamburg, school of arts). Previous experimental exercises showed that morphological sequences of modeling are effective sources for playful designing processes. In the current work these approaches are enhanced and supplemented by different morphological architectural concepts for creating shapes. For this purpose 2D based software like Morphit, Winmorph and other freeware were used. Whereas in the further development of this design technique we used 3D freeware morphing programs like zhu3D or Blender. The resulting morphological shapes were imported in CAD and refined. Ideally the morphing tool is integrated in the modeling environment of the standard software AutoCAD. A digital city model is the starting basis of the design process to guarantee the reference to the reality. The applied design didactic is predicated on the theories of Bernhard Hoesli. The act of designing viewed as „waiting for a good idea“ is, according to him, unteachable; students should, in contrast, learn to judge the „the force of an idea“. On the subject of morphology a form-generating method in the pre-design phase has been tested. Starting from urban-planning lines on an area map, two simple geometric initial images were produced which were merged by means of morphing software. Selected images from this film sequence were extruded with CAAD to produce solid models as sectional drawings. The high motivation of the students and the quality of the design results produced with these simple morphing techniques were the reason for the integration of the artistic and scientific software into the creative shape modeling process with the computer. The students learned in addition to the „bottom up “and „ top down” new design methods. In the presentation the properties and benefits of the morphing tools are presented in tables and are analyzed with regard to the architectural shape generating in an urban context. A catalogue of criteria with the following topics was developed: user friendliness, the ability of integrating the tools or as the case may be the import of data into a CAD environment, the artistic aspects in terms of the flexibility of shape generating as well as the evaluation of the aesthetic consideration of shapes.
keywords	Architectural design, freeware morphing software, AutoCAD
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	ecaade2008_181
id	ecaade2008_181
authors	Koehler, Tanja; Dieckmann, Andreas; Russell , Peter
year	2008
title	An Evaluation of Contemporary Game Engines
doi	https://doi.org/10.52842/conf.ecaade.2008.743
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 743-750
summary	The paper deals with a close examination of several contemporary game engines regarding their usability for architectural visualisation that was conducted by third to fifth year students in a seminar context. The study examines the technology of these game engines with the main focus on graphic quality and adaptability to architectural purpose. The evaluation included not only the workflow of importing the 3D model into the engine but also general handling of the software and its user interface. The documentation of the test process and the evaluation of the various engines have been documented in a wiki compiled and written by the students. The information therein and the cost-benefit analyses provided for every engine should assist future users to quickly find the most suitable game engine for their specific purposes.
keywords	game engine, visualization, virtual reality, real-time graphic, 3d model
series	eCAADe
email
last changed	2022/06/07 07:51

_id	caadria2008_72_session7a_594
id	caadria2008_72_session7a_594
authors	Kosavinta, Satakhun
year	2008
title	Collaborative Financial Feasibility With CAAD For Residential Development
doi	https://doi.org/10.52842/conf.caadria.2008.594
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. 594-600
summary	Computer Aided Architectural Design software is a necessary tool for the architectural design of a visible object or model. In residential development, an estimation of time/cost corresponding to the design is needed in order to complete its successful project. But available feasibility supporting tools usually lacks ability to share their information. To solve this limitation, this research proposes a design of Graphic User Interface (GUI) for collaborative financial feasibility through an architectural design process in housing project. The development of the GUI starts from collecting some information and requirement from National Housing Authority of Thailand. A heuristic decision making approach based on financial analysis are then designed for both design processes and feasibility processes of the project. Finally, design of the GUI is an integration of CAAD engines, design standards and financial feasibility analysis. Proposed GUI for collaborative financial feasibility is also tested and verified with some information from sample past projects of the National Housing Authority. From the experimental results, This GUI allows designers to improve the design of the project in real-time by inspecting the result of their design via the part of the architectural design-oriented GUI called myMonitoring and Scratch Pad. Together with planning, collaborative financial feasibility is focusing on the four main financial parameters which illustrated the possible chance of the project: Net Present Value (NPV), Benefit-Cost Ratio (B/C), Internal Rate of Return (IRR), and Payback Period. The core system was developed on Java Technology such as JSP and Swing empowered by 3D game engine. In addition, “Virtools” as an authoring tool was applied to improve interactive 3D virtual environment and explore rapid online system prototyping.
keywords	Collaborative: Financial Feasibility; CAAD; Residential Development; Virtual Reality (VR)
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	caadria2012_046
id	caadria2012_046
authors	Lertsithichai, Surapong
year	2012
title	Building Thailand's tallest Ganesh: CAD/CAM integration in conventional metal fabrication
doi	https://doi.org/10.52842/conf.caadria.2012.337
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 337–346
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_137
id	ecaade2008_137
authors	Palmquist, Erik; Shaw, Jonathan
year	2008
title	Collaborative City Modeling
doi	https://doi.org/10.52842/conf.ecaade.2008.249
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 249-256
summary	This paper presents an approach to creating an online real time rendering environment, upon which a large-scale, urban 3D model can be produced as a collaborative effort between initial content creators and outside parties with an interest in simulation and visualization. In 2007, the City of Atlanta, Georgia organized a taskforce to provide recommendations on the future development and mobility along the city’s signature street, Peachtree Street. To aid in the visualization of this area, datasets were converted into low polygon textured 3D models for the entire study area. This content will serve as the foundation of a collaborative effort to complete a high quality real time environment. The process for this project will be described and the means to extend the boundaries, maintain, and collaborate with this content will be proposed.
keywords	3D model, collaborative design, real time, visualization, training
series	eCAADe
email
last changed	2022/06/07 07:58

_id	stellingwerff02_paper_eaea2007
id	stellingwerff02_paper_eaea2007
authors	Stellingwerff, Martijn
year	2008
title	Googlized Contextual Design
source	Proceedings of the 8th European Architectural Endoscopy Association Conference
summary	Over the past decade, the topic of city modelling has been extensively discussed in focus-groups during meetings of the EAEA and eCAADe conferences, amongst others. Many attempts have been made to specify what information should be included, how the relevant information should be represented and how the models should be viewed and considered. Digital and physical models for urban representation share particular, similar properties, but also have distinct advantages. Digital models qualify for adaptability and ability to be shared in both a-synchronous and synchronous ways. Physical scale models excel in tangibility, directness and the ways in which they can be shared in a ‘natural’ way. Recent studies have focused on mixing the advantages of both types of representational models. Digital models can be made ‘physical’ by means of a 3D colour printer or other Rapid Prototyping techniques. Physical models can be augmented by projecting different digital data and images on them. Furthermore all kinds of post-production media can be used to refine, represent and share the model image.
keywords	Contextual Design, Web 2.0, Geotagging, Virtual Context
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2008/04/29 20:46

_id	ecaade2008_065
id	ecaade2008_065
authors	Uddin, M. Saleh
year	2008
title	Simulation of Daylight in the Architecture of Louis I. Kahn: A Study of the Un-built Hurva Synagogue
doi	https://doi.org/10.52842/conf.ecaade.2008.727
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 727-734
summary	One of the most powerful aspects of Louis I. Kahn’s architectural space is his handling of natural light. Kahn believed that architecture began with the ‘making of a room’ and that ‘a room is not a room without natural light.’ Throughout his career, he explored bringing light into interiors in the most imaginative ways. Kahn used endless possibilities, from small devices to complex dome structures, to create a poetic and spiritual light inside buildings. The purpose of this paper is to present the theories and practices of natural light in architecture by Louis Kahn, who has deftly used it as a creative medium in his design of buildings. Starting from development of theories, this research focuses on how he implemented his theories into practice. As a case study, the Hurva Synagogue project is selected to analyze its unique lighting solutions. Many of Kahn’s previous concepts can be traced to the Hurva, making it an ideal project for lighting study. Since Hurva Synagogue is an un-built project, recent techniques of computer graphics is used to understand how daylight illuminates the interior in different times of the day and year in both still images and in 3D animations.
keywords	Louis I Kahn, Daylight Simulation, 3D Model, Animation
series	eCAADe
email
last changed	2022/06/07 07:57

_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	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
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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
doi	https://doi.org/10.52842/conf.caadria.2008.221
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
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

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