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	d7d2
id	d7d2
authors	Verdy Kwee, Anthony Radford, Dean Bruton, Ian Roberts
year	2006
title	Architecture \| Media \| Representations Survey- (Exigencies at a Media Crossroad)
source	Challenges for Architectural Science in Changing Climates: Proceedings of the 40th Annual Conference of the Architectural Science Association ANZAScA Adelaide, Australia \| 22- 25 November 2006
summary	Architectural information has been presented in a myriad of ways through various media for the purpose of public education. Rapid technological change tremendously affects the modes and techniques of communication media necessitating a reassessment of these vehicles. This paper suggests that if the medium should continue to be the ‘massage’ (McLuhan, 1967), it is imperative that we should understand the implications our choice and use of various media for communication of specific data, especially in relation to a targeted audience. The paper presents the results and analyses of an online user survey (please refer to http://cumincad.scix.net/data/works/att/8d88.content.09055.pdf) which considers the use of currently available media, their roles and performance in the delivery of information of architectural works. It proposes suggestions for the manner and reasons these factors fashion users’ preferences. It also highlights several aspects of architectural data (e.g. forms, lighting, materials, etc) as well as those of the respective media used to represent them while indicating how significant end-users perceive these aspects in the process of understanding architecture. The interpretations of the results outlined in this paper may suggest some answers to the questions relating to current media use, but they may also pose more questions about the types of and the manner in which information should be delivered to architecture enthusiasts/readers. This reassessment is intended to help anticipate future directions in the application of these media in presenting architectural information. Special attention is particularly paid to the opportunities afforded by the digital platform.
keywords	architecture, media, representation, survey, architectural information
series	other
type	normal paper
email
more	contact conference committee at http://www.adelaide.edu.au/anzasca2006/
last changed	2006/12/07 05:43

_id	3ac5
id	3ac5
authors	Verdy Kwee, Antony Radford, Dean Bruton and Ian Roberts
year	2006
title	Architecture \| Media \| Representations Survey- (Exigencies at a Media Crossroad)
source	Adeliade, Australia
summary	Architectural information has been presented in a myriad of ways through various media for the purpose of public education. Rapid technological change tremendously affects the modes and techniques of communication media necessitating a reassessment of these vehicles. This paper suggests that if the medium should continue to be the ‘massage’ (McLuhan, 1967), it is imperative that we should understand the implications our choice and use of various media for communication of specific data, especially in relation to a targeted audience. The paper presents the results and analyses of an online user survey which considers the use of currently available media, their roles and performance in the delivery of information of architectural works. It proposes suggestions for the manner and reasons these factors fashion users’ preferences. It also highlights several aspects of architectural data (e.g. forms, lighting, materials, etc) as well as those of the respective media used to represent them while indicating how significant end-users perceive these aspects in the process of understanding architecture. The interpretations of the results outlined in this paper may suggest some answers to the questions relating to current media use, but they may also pose more questions about the types of and the manner in which information should be delivered to architecture enthusiasts/readers. This reassessment is intended to help anticipate future directions in the application of these media in presenting architectural information. Special attention is particularly paid to the opportunities afforded by the digital platform.
keywords	publications, user survey, perception, online, print content, education, understanding, information delivery, presentation
series	other
type	normal paper
email
last changed	2009/02/05 04:36

_id	8c66
authors	Brooks, Frederick P. Jr., Ouh-Young,Ming and Batter, James J. (et al)
year	1990
title	Project GROPE - Haptic Displays for Scientific Visualization
source	SIGGRAPH '90 Conference Proceedings August, 1990. vol. 24 ; no. 4: pp. 177-185 : ill. (some col.). includes bibliography.
summary	A project to develop a haptic and display for 6-D force fields of interacting protein molecules was began in 1967. The authors approached it in four stages: a 2-D system, a 3-D system tested with a simple task, a 6-D system tested with a simple task, and a full 6-D molecular docking system, which was the initial goal. This paper summarize the entire project, the four systems, the evaluation experiments, the results, and the authors observations
keywords	user interface, computer graphics, visualization, virtual reality
series	CADline
last changed	2003/06/02 10:24

_id	ascaad2010_279
id	ascaad2010_279
authors	Celani, G.; L. Medrano; J. Spinelli
year	2010
title	Unicamp 2030: A plan for increasing a university campus in a sustainable way and an example of integrated use of CAAD simulation and computational design strategies
source	CAAD - Cities - Sustainability [5th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2010 / ISBN 978-1-907349-02-7], Fez (Morocco), 19-21 October 2010, pp. 279-286
summary	The state university of Campinas, Unicamp, is a public university in upstate São Paulo, Brazil, ranked the second best in the country. It was founded in 1966, and its main campus started to be built in 1967, in the suburbs of Campinas, nowadays a two-million people city. The area of the campus is almost 3 million square meters (300 hectares), with a total built area of 522.000 m2 and a population of 40 thousand people - 30 thousand students, 2 thousand faculty members and almost 8 thousand staff members. The campus’ gross population density is 133 people per hectare. Less than 6% of the total campus area is presently occupied. The design of Unicamp's campus is based on concepts that were typical of the modern movement, with reminiscences of corbusian urbanism, in which preference is given to cars and buildings are spread apart on the territory, with little concern to the circulation of pedestrians. The standard building type that has been built on campus since the 1970's is based on non-recyclable materials, and has a poor thermal performance. Unicamp is expected to double its number of students by the year 2030. The campus density is thus expected to grow from 600 people per hectare to almost 1,000 people per hectare. The need to construct new buildings is seen as an opportunity to correct certain characteristics of the campus that are now seen as mistakes, according to sustainability principles. This paper describes a set of proposals targeting the increase of the campus' density in a sustainable way. The plan also aims at increasing the quality of life on campus and diminishing its impact on the environment. The main targets are: - Reducing the average temperature by 2oC; - Reducing the average displacement time by 15 minutes; - Increasing the campus' density by 100%; - Reducing the CO2 emissions by 50%. // In order to achieve these goals, the following actions have been proposed: Developing a new standard building for the university, incorporating sustainability issues, such as the use of renewable and/or recyclable materials, the installation of rainwater storage tanks, the use of natural ventilation for cooling, sitting the buildings in such a way to decrease thermal gain, and other issues that are required for sustainable buildings' international certifications. To assess the performance of the new standard building, different simulation software were used, such as CFD for checking ventilation, light simulation software to assess energy consumption, and so on. 1. Filling up under-utilized urban areas in the campus with new buildings, to make better use of unused infrastructure and decrease the distance between buildings. 2. Proposing new bicycle paths in and outside campus, and proposing changes in the existing bicycle path to improve its safety. 3. Developing a landscape design plan that aims at creating shaded pedestrian and bicycle passageways.
series	ASCAAD
type	normal paper
email
last changed	2021/07/16 10:37

_id	e3d1
authors	Dodge, Richard
year	1998
title	What a Difference a Tool Makes:The Evolution of a Computer Design Studio
doi	https://doi.org/10.52842/conf.ecaade.1998.x.t4u
source	Computerised Craftsmanship [eCAADe Conference Proceedings] Paris (France) 24-26 September 1998
summary	What a Difference a Tool Makes : discoveries made during the evolution of the Advanced Design Studio (a.k.a. 'working drawings') at the University of Texas at Austin since the time this core course was switched to computers, when student design teams were provided with computers and required to use them for design and presentation. Covers the period from the course?s inception in 1991 to the present, during which the course has been under the continuing aegis of Professor Richard Dodge, who has taught design since 1967. Contrapuntal presentation by Professor Dodge and co-instructor and former student Marla Smith: what was done, what worked, and what went wrong. Discusses students, faculty, hardware, software, design problems assigned, and the most educational computer-related catastrophes.
series	eCAADe
more	http://www.paris-valdemarne.archi.fr/archive/ecaade98/html/04dodge/index.htm
last changed	2022/06/07 07:50

_id	ca47
authors	Lee, Shu Wan
year	1996
title	A Cognitive Approach to Architectural Style Several Characteristics of Design Thinking in Architecture
doi	https://doi.org/10.52842/conf.caadria.1996.223
source	CAADRIA ‘96 [Proceedings of The First Conference on Computer Aided Architectural Design Research in Asia / ISBN 9627-75-703-9] Hong Kong (Hong Kong) 25-27 April 1996, pp. 223-226
summary	Designing is a complicated human behaviour and method, and is often treated as a mysterious "black box” operation in human mind. In the early period as for theory-studying of design thinking, the way of thinking that the researchers took were mostly descriptive discussions. Therefore, they lacked direct and empirical evidence although those studies provided significant exploration of design thinking (Wang, 1995). In recent years as for the study of cognitive science, they have tried to make design "glass box”. That is to try to make the thinking processes embedded in designers publicized. That is also to externalize the design procedure which provided the design studies another theoretical basis of more accurate and deeply researched procedure (Jones, 1992). Hence the studying of design thinking has become more important and the method of designing has also progressed a lot. For example, the classification of the nature of design problem such as ill-defined and well-defined (Newell, Shaw, and Simon, 1967), and different theoretical procedure modes for different disciplines, such as viewing architectural models as conjecture-analysis models and viewing engineering models as analysis-synthesis (Cross, 1991).
series	CAADRIA
last changed	2022/06/07 07:52

_id	ecaade2013_013
id	ecaade2013_013
authors	Lorenz, Wolfgang E.
year	2013
title	Combining Complexity and Harmony by the Box-Counting Method
doi	https://doi.org/10.52842/conf.ecaade.2013.2.667
source	Stouffs, Rudi and Sariyildiz, Sevil (eds.), Computation and Performance – Proceedings of the 31st eCAADe Conference – Volume 2, Faculty of Architecture, Delft University of Technology, Delft, The Netherlands, 18-20 September 2013, pp. 667-676
summary	When Benoît Mandelbrot raised the question about the length of Britain’s coastline in 1967, this was a major step towards formulating the theory of fractals, which also led to a new understanding of irregularity in nature. Since then it has become obvious that fractal geometry is more appropriate for describing complex forms than traditional Euclidean geometry (not only with regard to natural systems but also in architecture). This paper provides another view on architectural composition, following the utilization of fractal analysis. The procedure concerning the exploration of a façade design is demonstrated step by step on the Roman temple front of the Pantheon by Appolodorus and its re-interpretation – in the particular case the entrance front of Il Redentore, a Renaissance church by Palladio. Their level of complexity and range of scales that offer coherence are visualized by the specific measurement method of box-counting.
wos	WOS:000340643600069
keywords	Fractal analysis; box-counting method; Pantheon; Il Redentore; Palladio.
series	eCAADe
email
last changed	2022/06/07 07:59

_id	20ab
authors	Yakeley, Megan
year	2000
title	Digitally Mediated Design: Using Computer Programming to Develop a Personal Design Process
source	Massachusetts Institute of Technology, Department of Architecture
summary	This thesis is based on the proposal that the current system of architectural design education confuses product and process. Students are assessed through, and therefore concentrate on, the former whilst the latter is left in many cases to chance. This thesis describes a new course taught by the author at MIT for the last three years whose aim is to teach the design process away from the complexities inherent in the studio system. This course draws a parallel between the design process and the Constructionist view of learning, and asserts that the design process is a constant learning activity. Therefore, learning about the design process necessarily involves learning the cognitive skills of this theoretical approach to education. These include concrete thinking and the creation of external artifacts to develop of ideas through iterative, experimental, incremental exploration. The course mimics the Constructionist model of using the computer programming environment LOGO to teach mathematics. It uses computer programming in a CAD environment, and specifically the development of a generative system, to teach the design process. The efficacy of such an approach to architectural design education has been studied using methodologies from educational research. The research design used an emergent qualitative model, employing Maykut and Morehouses interpretive descriptive approach (Maykut & Morehouse, 1994) and Glaser and Strausss Constant Comparative Method of data analysis (Glaser & Strauss, 1967). Six students joined the course in the Spring 1999 semester. The experience of these students, what and how they learned, and whether this understanding was transferred to other areas of their educational process, were studied. The findings demonstrated that computer programming in a particular pedagogical framework, can help transform the way in which students understand the process of designing. The following changes were observed in the students during the course of the year: Development of understanding of a personalized design process; move from using computer programming to solve quantifiable problems to using it to support qualitative design decisions; change in understanding of the paradigm for computers in the design process; awareness of the importance of intrapersonal and interpersonal communication skills; change in expectations of, their sense of control over, and appropriation of, the computer in the design process; evidence of transference of cognitive skills; change from a Behaviourist to a Constructionist model of learning Thesis Supervisor: William J. Mitchell Title: Professor of Architecture and Media Arts and Sciences, School of Architecture and Planning
series	thesis:PhD
last changed	2003/02/12 22:37

_id	16fe
id	16fe
authors	Abdelmohsen, Sherif; Do, Ellen Yi-Luen
year	2007
title	Tracking Design Development through Decomposing Sketching Processes
source	Digital proceedings of the International Association of Societies of Design Research (IASDR 2007), Emerging Trends in Design Research, Hong Kong Polytechnic University School of Design, Hong Kong.
summary	We conducted a protocol study of the architectural sketching process. We decompose the process into process flows to explore the extent to which it expresses concept development in schematic and refined design phases. We track the development of design concepts in these phases by following the process flows of individual sketched strokes. We argue that each stroke drawn by the designer reveals a probability of an embedded concept, and that this concept is either promoted and propagated throughout the design phases, or blocked while designing. We expand the notion of lateral and vertical transformation in design by introducing a set of processes described as cross propagation, lateral promotion and vertical promotion.
series	other
type	normal paper
email
last changed	2010/01/30 07:19

_id	9609
id	9609
authors	Abdelmohsen, Sherif; Do, Ellen Yi-Luen
year	2008
title	Energy Puppet: An Ambient Awareness Interface for Home Energy Consumption
source	Digital proceedings of the 7th International Workshop on Social Intelligence Design (SID 2008), School of Architecture, Universidad de Puerto Rico, San Juan, Puerto Rico.
summary	The Energy Puppet is an ambient display device that provides peripheral awareness of energy consumption for individual home appliances. The display produces different “pet-like” behavioral reactions according to energy use patterns of the appliances to give homeowners an indication of their energy consumption status. The puppet would raise its “arms” in victory to display normal consumption rate, or its “eyes” would change color to red and “roar” to warn the homeowners when the specific appliance reaches dangerously high consumption rates. The assumption is that the awareness of energy consumption could affect how people consume and control energy use in their households. This paper describes the usage scenarios and the design and implementation of Energy Puppet and discusses future research directions.
keywords	Ambient Intelligence, Peripheral Awareness, Energy Consumption
series	other
type	normal paper
email
last changed	2010/01/30 07:22

_id	ee30
id	ee30
authors	Abdelmohsen, Sherif; El-Khouly, Tamer
year	2009
title	Representing Reflective Practice in a Remote Design Collaboration Process
source	Digital proceedings of the 3rd Conference of International Association of Societies of Design Research (IASDR 2009), COEX, Seoul, Korea, pp. 1317 – 1326.
summary	This paper addresses a new method to describe the remote collaborative design process from the perspective of reflective practice. We aim at understanding the mutual effect between internal and external structures in remote collaborative design. According to the cognitive coding scheme of Suwa et al., we encoded the process into a set of indices—new, continual and revisited—that describe each primitive design move. In a case study which involved the authors as design collaborators, we identified the degree of dependency among these moves and developed a 3D graphical representation to account for reflective practice between us as collaborators. In this representation, we re-interpreted our collaborative process through three main axes: axis of idea exchange as lateral component, axis of idea development as vertical component, and axis of dependency as depth component. We believe this representation can be used to re-interpret the collaboration process among geographically dispersed design team members.
keywords	Collaborative design, reflective practice, collective reflection-in-action, cognitive actions, design moves, dependency relationships, remote collaboration
series	other
type	normal paper
email
last changed	2010/01/30 07:26

_id	ecaade2023_54
id	ecaade2023_54
authors	Abdulmajeed, Abdulwahab, Agkathidis, Asterios, Dounas, Theo and Lombardi, Davide
year	2023
title	Mass-customisation of dwellings in the Middle East:developing a design-to-fabrication framework to resolve the housing crisis in Saudi Arabia
doi	https://doi.org/10.52842/conf.ecaade.2023.2.157
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 157–164
summary	The Saudi government is taking the initiative to modernise the country and address critical challenges. One of its primary goals is to relieve the housing deficit. One of the challenges in supplying the houses is that potential inhabitants have denied and refused to accept them due to their design failing to meet their demands. Furthermore, the government suffers from providing high-quality housing in line with people’s needs because only a few enterprises can meet the client’s needs, but only at the price of lengthy planning and building times, in addition to increased construction expenses. This research aims to propose a mass customisation design-to-fabrication workflow, which targets environmental optimisation, reduction of construction time and reduced cost and incorporates client involvement. Our research method includes conducting a survey with Saudi Arabian architecture firms to collect data about contemporary clients’ needs, analysing and reviewing mass-customisation tools & techniques, developing a bespoke algorithm capable of mass-customising housing and evaluating the algorithm through design experiments. Our findings present the advantages and challenges of our tool as well as a shape grammar of mass customised floor plan solutions.
keywords	Mass Customisation, Parametric Design, Housing Design
series	eCAADe
email
last changed	2023/12/10 10:49

_id	caadria2017_131
id	caadria2017_131
authors	Abe, U-ichi, Hotta, Kensuke, Hotta, Akito, Takami, Yosuke, Ikeda, Hikaru and Ikeda, Yasushi
year	2017
title	Digital Construction - Demonstration of Interactive Assembly Using Smart Discrete Papers with RFID and AR codes
doi	https://doi.org/10.52842/conf.caadria.2017.075
source	P. Janssen, P. Loh, A. Raonic, M. A. Schnabel (eds.), Protocols, Flows, and Glitches - Proceedings of the 22nd CAADRIA Conference, Xi'an Jiaotong-Liverpool University, Suzhou, China, 5-8 April 2017, pp. 75-84
summary	This paper proposes and examines a new way of cooperation between human workers and machine intelligence in architectural scale construction. For the transfer of construction information between the physical and digital world, mature technologies such as Radio Frequency IDentifier (RFID), and emerging technologies like Augmented Reality (AR) are used in parallel to supplement each other. Dynamic data flow is implemented to synchronize digital and physical models by following the ID signatures of individual building parts. The contributions of this paper includes the demonstration of current technological limitations, and the proposal of a hybrid system between human and computer, which is tested in order to explore the possibilities of digitally enhanced construction methods.
keywords	Digital Construction; Augmented Reality; Human-Machine interaction
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	41e5
authors	Abendroth, M., Decock, J. and Mestaoui, N.
year	2000
title	O_1:// the hypertextu(r)al matrix
source	SIGraDi’2000 - Construindo (n)o espacio digital (constructing the digital Space) [4th SIGRADI Conference Proceedings / ISBN 85-88027-02-X] Rio de Janeiro (Brazil) 25-28 september 2000, pp. 75-76
summary	Founded in 1995 LAB[au], laboratory for architecture and urbanism, links theoretic research LAB[a+u] to concrete works of conception and realisations LA.BAU. LAB[au] elaborates a “hyperdesign” investigating the implications of new technologies of communication and computation in spatiotemporal and social processes and their forms of representation as architecture and urbanism. The transposition of the hypertext model to architectural and urban concepts question the mutation of the spatial and semantic construct of space. The definition of architecture as a code is based on “glocal” systems according to the processes of computation and communication.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	fa3e
id	fa3e
authors	Achten, H., de Vries, B. and van Leeuwen, J.
year	2001
title	THE VR-DIS RESEARCH PROGRAMME
source	Achten, H.H., de Vries, B. and Hennessey, J. (eds). Design Research in the Netherlands 2000, 155-163
series	book
type	normal paper
email
more	http://www.designresearch.nl/PDF/DRN2000_AchtenDeVriesVanLeeuwen.pdf
last changed	2005/10/12 15:41

_id	1dfa
id	1dfa
authors	Achten, H.H., de Vries, B. and Hennessey, J. (eds.)
year	2001
title	DESIGN RESEARCH IN THE NETHERLANDS 2000 - PROCEEDINGS OF THE SYMPOSIUM, EINDHOVEN MAY 25-26 2000
source	Eindhoven: Eindhoven University of Technology
series	book
type	symposium
email
more	http://www.designresearch.nl/PDF/DRN2000_AchtenDeVriesHennessey_Proceedings.pdf
last changed	2005/10/12 15:28

_id	f3a9
id	f3a9
authors	Achten, H.H., de Vries, B. and Hennessey, J.
year	2001
title	DESIGN RESEARCH IN THE NETHERLANDS 2000
source	Achten, H.H., de Vries, B. and Hennessey, J. (eds). Design Research in the Netherlands 2000, i-vi
series	book
type	normal paper
email
more	http://www.designresearch.nl/PDF/DRN2000_AchtenDeVriesHennessey_Introduction.pdf
last changed	2005/10/12 15:42

_id	e322
id	e322
authors	Achten, H.H., Dorst, K., Stappers, P.J. and de Vries, B.
year	2005
title	A DECADE OF DESIGN RESEARCH IN THE NETHERLANDS
source	Achten, H.H., Dorst, K. Stappers, P.J. and de Vries, B. (eds.) Design Research in the Netherlands 2005, i-vii
series	book
type	normal paper
email
more	http://www.designresearch.nl/PDF/DRN2005_AchtenDorstStapperDeVries_Introduction.pdf
last changed	2005/10/12 15:52

_id	ecaade2023_426
id	ecaade2023_426
authors	Adelzadeh, Amin, Karimian-Aliabadi, Hamed and Robeller, Christopher
year	2023
title	Wave-edge Modeling Method for Segmented Timber Plate Shell Structures: A computational tool for optimizing the bonding area of CLT joints
doi	https://doi.org/10.52842/conf.ecaade.2023.1.301
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, pp. 301–310
summary	The paper presents an algorithmic modeling tool for segmented timber shell structures made of glued wave-edge CLT plates. The goal is to provide a larger bonding area and thereby higher adhesive strength between plates, especially where a higher tension-resistant capacity is required. In addition to a number of contemporary research for exploring stereotomic modules, the inspiration is taken from the long history of the traditional glued finger joints in carpentry where they are used for providing higher interlocking capacity and adhesive strength. The structural performance of regular and glued finger joints is directly proportional to the bonding area between adjoining elements where they are interlocked and glued. Hence, expanding the shared faces would intrinsically magnify the structural performance of the glued finger joints. The paper presents the modeling method of a material-efficient, grain-informed, and structurally-optimized wedge edge joint system for the multi-shaped shell structures where the wave pattern is chosen for generating smoother fabrication toolpaths compared to any sharp-cornered pattern. The algorithm developed by the authors can efficiently maximize the glue bond by optimizing the wave-edge properties dynamically with respect to the geometric design, material system, and structural analysis within a feedback loop. The wave-edge properties directly affect the material waste and fabrication time and cost; therefore, the production parameters could be directly considered and controlled within the design process. The algorithm is able to produce the structural data model for the direct RFEM structural analysis, and fabrication data for automated production of multitude elements. The paper argues the application possibilities and limitations of the joint system for multi-shaped timber plate shells made of a multitude of geometrically-differentiated timber plates.
keywords	Algorithmic Design, Wave-edge Joint System, CLT, Shell Structure, Timber Prefabrication
series	eCAADe
email
last changed	2023/12/10 10:49

_id	ecaade2023_439
id	ecaade2023_439
authors	Adelzadeh, Amin, Karimian-Aliabadi, Hamed, Ahlund, Karl and Robeller, Christopher
year	2023
title	ReciprocalShell: A hybrid timber system for robotically-fabricated lightweight shell structures
doi	https://doi.org/10.52842/conf.ecaade.2023.1.651
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, pp. 651–660
summary	Reciprocal timber systems have been widely studied, however they have never been directly applied to the segmented timber shell structures as cross bracing of the polygonal topologies. For the first time, this paper presents an innovative hybrid timber system developed for design and construction of the robotically-fabricated lightweight timber shell structures. The paper integrates two configurations of wood beams: polygonal framing and reciprocal bracing. While, the polygonal topology of facets enables a constant distance offset for the thickness of the shell, the reciprocal configuration allows for cross bracing of polygonal frames where diagonals within the polygons cannot directly connect corners due to geometric constraints resulted by the free-form surface structure of shell shapes. Joining the cross-bracing elements in the center of the polygons with a reciprocal node reduces the complexity of the connection system at nodes while demonstrating the high load-bearing capacity of joints to withstand structural loads throughout the structure, compared to connecting 5, 6 or 7 beams in a single point. The article discusses the application and limitations of the timber system while presenting the design-to-assembly process of a case study of the small-scale shell demonstrator with the maximum span of 7.5 meters made of 144 wood elements for each polygonal and reciprocal configurations. The results show that the timber system has a great capacity for the rapid and precise assembly and disassembly of prefabricated timber structures. Generation of similar but different solid elements, allowed for the development of a custom CAD data interface for the automated production of numerous pieces, where simple joint details are applied for both alignment and attachment of beams, reducing the design complexity and facilitate the construction phase. As the result, the fabrication process was completely carried out with only a saw blade in a multi-axis robotic fabrication set up that enables the rapid, precise, and accurate cuts and grooves. Both timber configurations generate a uniform distribution of beam size, meaning that the production process created only a minimal amount of offcuts that allows for the use of simple and cost-efficient, short solid wood pieces.
keywords	Hybrid Timber System, Reciprocal Shell, Robotic Fabrication, Timber Shell, Lightweight Structures
series	eCAADe
email
last changed	2023/12/10 10:49

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