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	2475
authors	Asimov, Isaac
year	1968
title	The Perfect Machine
source	Science Journal October, 1968. pp. 115-118 : ill.
summary	The author takes a semi-serious look at the world of computers, robots and androids in an attempt to find a recipe for the perfect machine. Described in this article are the possible attributes of the perfect machine and some of the problems it might raise
keywords	robotics, science fiction
series	CADline
last changed	1999/02/12 15:07

_id	5cf4
id	5cf4
authors	Barrionuevo, Luis F.
year	2004
title	LOS "SPIROSPACES"
source	Proceedings of the Fourth International Conference of Mathematics & Design, Special Edition of the Journal of Mathematics & Design, Volume 4, No.1, pp. 179-187.
summary	This paper deals with “Spirospaces”. These are a conversion to the third dimension of the two dimensional geometric entities called “Spirolaterals”. Abelson, Harold, diSessa and Andera (1968) gave the first rules concerning Spirolaterals. To obtain a Spirolateral from a set of straight lines, the first of them must be one unit long and the following must be incremented one unit at each step, at the same time that they turn in a constant direction. Odds (1973) establish the variation of the rotation direction, either to the left or the right. However, he did not give a mathematical relation able to calculate open Spirolaterals. Krawczyk (2001) developed a computer program that generates Spirolaterals following the method suggested by Abelson. These are Spirolaterals obtained by enumeration without a predictive mathematical formula. Krawczyc went farther proposing Spirolaterals based in curved lines. He pointed out that there are a variety of spirolateral forms that have architectural potentiality. Following this, the architectural potentiality of Spirolaterals is the basis of this paper. To take advantage of that potentiality a computer program was implemented to generate spatial configurations based in Spirolaterals. When a third dimension is given to the Spirolaterals they become Spirospaces. These new entities need spatial and design parameters to be useful for architectural purposes. Barrionuevo and Borsetti (2001) gave results about that work establishing the concept of Spirospaces. The aim of this paper is to describe a work directed to improve rules and procedures concerning Spirospaces. It is expected that these procedures governed by the proposed rules can be employed as tools during the early steps in the architectural design process. In this work some aspects concerning Spirospaces are considered. First, Spirolaterals are presented as the predecessors of Spirospaces. Second, Spirospaces are defined, together with their structural parameters. Architectural modeling is studied at the light of two special elements of the Spirospaces: Interstitial spaces and Object spaces. Next, a computer program is presented as the appropriate tool to model configurations having architectural potentiality. Finally, the results obtained running the computer program are analyzed to determine their possible use as architectural forms. Several graphic illustrations are presented showing steps going from the exploration of spatial alternatives to the selection of a specific configuration to be developed. It is expected that the described computer program could be employed as a design aid tool. As the operation of the program generates a variety of spaces able to dwell architectural objects, it eases the search of configurations suitable to specific functions. The results obtained have the possibility of being exported to computer graphic applications able to add materials, lights and cameras.
keywords	Spirolaterals, Spirospaces, architectural spaces, interstitial spaces, objectual spaces
series	other
type	normal paper
email
last changed	2005/04/07 15:34

_id	caadria2022_507
id	caadria2022_507
authors	Bolojan, Daniel, Vermisso, Emmanouil and Yousif, Shermeen
year	2022
title	Is Language All We Need? A Query Into Architectural Semantics Using a Multimodal Generative Workflow
doi	https://doi.org/10.52842/conf.caadria.2022.1.353
source	Jeroen van Ameijde, Nicole Gardner, Kyung Hoon Hyun, Dan Luo, Urvi Sheth (eds.), POST-CARBON - Proceedings of the 27th CAADRIA Conference, Sydney, 9-15 April 2022, pp. 353-362
summary	This project examines how interconnected artificial intelligence (AI)-assisted workflows can address the limitations of current language-based models and streamline machine-vision related tasks for architectural design. A precise relationship between text and visual feature representation is problematic and can lead to "ambiguity‚ in the interpretation of the morphological/tectonic complexity of a building. Textual representation of a design concept only addresses spatial complexity in a reductionist way, since the outcome of the design process is co-dependent on multiple interrelated systems, according to systems theory (Alexander 1968). We propose herewith a process of feature disentanglement (using low level features, i.e., composition) within an interconnected generative adversarial networks (GANs) workflow. The insertion of natural language models within the proposed workflow can help mitigate the semantic distance between different domains and guide the encoding of semantic information throughout a domain transfer process.
keywords	Neural Language Models, GAN, Domain Transfer, Design Agency, Semantic Encoding, SDG 9
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	82cd
authors	Comba, Paul G.
year	1968
title	A Procedure for Detecting Intersections of Three-Dimensional Objects
source	Journal of the Association for Computing Machinery. July, 1968. vol. 15: pp. 354-366 ; ill. includes bibliography
summary	As a step toward the solution of the placement problem in engineering design, a procedure has been developed for detecting intersections of convex regions in 3-space by means of a pseudocharacteristic function. The mathematical techniques underlying the procedure are discussed, and a system of programs embodying these techniques is described. As a special case a solution is given for the hidden-line problem in graphic display
keywords	intersection, interference, engineering, design, modeling, computer graphics, hidden lines, computational geometry, algorithms
series	CADline
last changed	2003/06/02 13:58

_id	273f
authors	Elcock, E.W.
year	1983
title	How Complete are Knowledge Representation Systems?
source	IEEE Computer. IEEE computer society, October, 1983. vol. 16: pp. 114-118. includes bibliography
summary	Prolog, the most feasible of the first-order logic systems, has intriguing analogies with Absys, short for Aberdeen System, an assertative programming system developed in 1968. In this article, the issue of incompleteness is explored by comparing aspects of the two systems, and the incompleteness resulting from any serious use of Prolog as a vehicle for a knowledge-based system is addressed
keywords	PROLOG, algorithms, knowledge, systems, languages
series	CADline
last changed	2003/06/02 13:58

_id	caadria2012_089
id	caadria2012_089
authors	Fernando, R.; R. Drogemuller and A. Burden
year	2012
title	Parametric and generative methods with building information modelling: Connecting BIM with explorative design modelling
doi	https://doi.org/10.52842/conf.caadria.2012.537
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 537–546
summary	Parametric and generative modelling methods are ways in which computer models are made more flexible, and of formalising domain-specific knowledge. At present, no open standard exists for the interchange of parametric and generative information. The Industry Foundation Classes (IFC) which are an open standard for interoperability in building information models is presented as the base for an open standard in parametric modelling. The advantage of allowing parametric and generative representations are that the early design process can allow for more iteration and changes can be implemented quicker than with traditional models. This paper begins with a formal definition of what constitutes to be parametric and generative modelling methods and then proceeds to describe an open standard in which the interchange of components could be implemented. As an illustrative example of generative design, Frazer’s ‘Reptiles’ project from 1968 is reinterpreted.
keywords	Building information model; parametric modelling; generative modelling
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	ga0202
id	ga0202
authors	Frazer, Jh., Frazer, J., Liu X., Tang M. and Janssen, P.
year	2002
title	Generative and Evolutionary Techniques for Building Envelope Design
source	International Conference on Generative Art
summary	The authors have been involved in the use of generative techniques for building envelope design since 1968 and the use of genetic algorithms since 1990. Recent work has focused on incorporating optimisation functions into form generating processes in order for new forms responding to varied design environments to be created and determined. This paper will summarise the authors’ previous work in this field and explain the theory behind this approach, and illustrate recent developments. While the initial implementation of a new building envelope design system is reported in more details in a related paper at this conference, this paper outlines its main features and points out the direction at which it is to be fully developed and further improved.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ascaad2023_032
id	ascaad2023_032
authors	Kalak, Dogan; Aydin, Serdar; Özer, Derya
year	2023
title	Use of Generative Systems to Create Semi-Public Spaces in Contemporary Neighborhood Texture
source	C+++: Computation, Culture, and Context – Proceedings of the 11th International Conference of the Arab Society for Computation in Architecture, Art and Design (ASCAAD), University of Petra, Amman, Jordan [Hybrid Conference] 7-9 November 2023, pp. 306-323.
summary	Cul-de-sacs are examined together with the urban reading in Siverek. Studying cul-de-sacs is instrumental to understand the morphology of Islamic cities. Cul-de-sacs provide a buffer zone between main roads and houses. For this reason, both the privacy phenomenon, which is one of the important issues for Islam, and the safe space need of the residents are important spatial elements. Until 1968, the city of Siverek developed organically within a compact texture of narrow and curvilinear streets, open courtyards, and a adjacent high-walled residences. In this texture, many semi-private cul-de-sacs have an organic form, which is one of the critical spatial elements of the city. Residential walls or courtyard walls form the natural line of traditional streets. In this study, typological analyses of cul-de-sacs were made, and form grammar, a productive method used to analyze architectural language, is included. It aims to examine the relationship between residential settlement and street using the data set created with shape grammars and to make urban propositions for neighbourhood structures in the context of a cul-de-sac using L-systems in the next step. Some parameters have been determined in forming cul-de-sacs that form the urban texture. These parameters were transferred to the model using digital tools. A method thought to be used in urban production has been put forward. The most important reference of this method is dead-end streets.
series	ASCAAD
email
last changed	2024/02/13 14:34

_id	caadria2009_026
id	caadria2009_026
authors	Ostwald, Michael J.; Josephine Vaughan
year	2009
title	Calculating Visual Complexity In Peter Eisenman’s Architecture
doi	https://doi.org/10.52842/conf.caadria.2009.075
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 75-84
summary	This paper describes the results of the first computational investigation of characteristic visual complexity in the architecture of Peter Eisenman. The research uses a variation of the “box-counting” approach to determining a quantitative value of the formal complexity present in five of Eisenman’s early domestic works (Houses I, II, III, IV and VI all of which were completed between 1968 and 1976). The boxcounting approach produces an approximate fractal dimension calculation for the visual complexity of an architectural elevation. This method has previously been used to analyse a range of historic and modern buildings including the works of Frank Lloyd Wright, Eileen Gray, Le Corbusier and Kazuyo Sejima. Peter Eisenman’s early house designs–important precursors to his later Deconstructivist works–are widely regarded as possessing a high degree of formal consistency and a reasonably high level of visual complexity. Through this analysis it is possible to quantify both the visual complexity and the degree of consistency present in this work for the first time.
keywords	Computational analysis; fractal dimension; box-counting; Peter Eisenman
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	2005_615
id	2005_615
authors	Serrato-Combe, Antonio
year	2005
title	Lindenmayer Systems – Experimenting with Software String Rewriting as an Assist to the Study and Generation of Architectural Form
doi	https://doi.org/10.52842/conf.ecaade.2005.615
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 615-621
summary	In 1968 Aristid Lindenmayer proposed a series of mathematical constructs as a foundation for an axiomatic theory of form development. Since that time, Lindenmayer Systems or L-systems have evolved and found many practical applications in the computer visualization area. Generation of fractal imagery, realistic modeling and high quality visualization of organic forms and even music generation are now possible with the assistance of L-systems. But, is it possible to use L-systems in architectural design? Why would anyone use L-systems in architectural design? How would one use them? What could one expect from their use? In addition to providing answers to the above questions this paper presents: 1. Concepts behind L-systems 2. The need to transform L-Systems so they can have creative architectural application possibilities 3. Examples on the architectural use of L-Systems 4. Conclusions
keywords	Form Generation, Lindenmayer, String rewriting, Visualization
series	eCAADe
email
last changed	2022/06/07 07:56

_id	sigradi2005_161
id	sigradi2005_161
authors	Serrato-Combe, Antonio
year	2005
title	Lindenmayer Systems – Experimenting with Software String Rewriting as an Assist to the Study and Generation of Architectural Form
source	SIGraDi 2005 - [Proceedings of the 9th Iberoamerican Congress of Digital Graphics] Lima - Peru 21-24 november 2005, vol. 1, pp. 161-166
summary	In 1968 Aristid Lindenmayer proposed a series of mathematical constructs as a foundation for an axiomatic theory of form development. Since that time, Lindenmayer Systems or L-systems have evolved and found many practical applications in the computer visualization area. Generation of fractal imagery, realistic modeling and high quality visualization of organic forms and even music generation are now possible with the assistance of L-systems. But, is it possible to use L-systems in architectural design? Why would anyone use L-systems in architectural design? How would one use them? What could one expect from their use?
series	SIGRADI
type	normal paper
email
last changed	2016/03/10 10:00

_id	8245
authors	Shaviv, Edna and Greenberg, Donald P.
year	1968
title	Funicular Surface Structures: a Computer Graphics Approach
source	Bulletin of the International Association for Shell Structures. Madrid, Spain: 1968. pp. 15-26 : ill. includes some bibliographical notes
summary	This paper describes the problem of finding the shape of the middle surface of a shell when the loading and the stress resultants distributions are known. Differential equations are set up and solved using the finite difference technique. Several solutions are presented by means of an electronic computer and a plotter
keywords	curved surfaces, structures, synthesis, architecture, computer graphics, algorithms
series	CADline
email
last changed	2003/06/02 13:58

_id	caadria2006_633
id	caadria2006_633
authors	WAN-YU LIU
year	2006
title	THE EMERGING DIGITAL STYLE: Attention shift in architectural style recognition
doi	https://doi.org/10.52842/conf.caadria.2006.x.g4f
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 633-635
summary	“Style” has long been an important index to observe the design thinking of designers in architecture. Gombrich (1968) defined style as a particular selection from the alternatives when doing things; Ackerman (1963) considered that a distiguishable ensemble of certain characteristics we call a style; Schapiro (1961) pointed out that style is constant forms, and sometimes the constant elements, qualities and expression; Kirsch (1998), Cha and Gero (1999) thought of style as a form element and shape pattern. As Simon and others referred to, style emerged from the process of problem solving, Chan (1994, 2001) ever devised a serious of experiments to set up the operational definitions of style, further five factors that relate to generating styles. Owing to that the greater part of sketches and drawings in the design process couldn’t be replaced by computer-aided design systems (Eisentraut, 1997), designers must shift between different problem-solving methods while facing different design problems. The purpose in this research is to discuss the influences of computer usage on style generation and style recognition: The employment of certain procedural factors that occurred in the design processes that using conventional media is different from the ones that using computer media? Do personal styles emerge while designers shifting between different media in the design processes? Does any unusual phenomenon emerge while accustomed CAD-systems designers recognizing a style?
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	architectural_intelligence2023_19
id	architectural_intelligence2023_19
authors	Caiyu Li, Zihui Lv, Yang Geng, Hao Tang, Xiaobin Gu, Borong Lin & Wenwen Zhou
year	2023
title	A data-driven method for the optimal control of centralized cooling station in an office park
doi	https://doi.org/https://doi.org/10.1007/s44223-023-00040-1
source	Architectural Intelligence Journal
summary	An effective way to reduce the energy consumption of a building is to optimize the control strategy for the HVAC system. Load prediction is suggested and used to match the supply and demand for air conditioning and achieve energy savings. However, the gap between load prediction models and real-time optimal control of HVAC systems still exists. Hence, this paper proposed an optimization method for dynamically determining the best setpoints of chillers and chilled water pumps under a specific load. The energy consumption model of each equipment in the centralized cooling station is established and validated using the operational data. Then an optimization problem is defined to find the optimal setpoints for each equipment under certain load, to realize the lowest energy consumption. To verify the validity of the proposed method, a period of real operational data in an office park is used. The proposed method is applied on one centralized cooling station in the office park and results in an 4% lower overall energy consumption than the existing intelligent control strategies in the park. This method provides feasible directions and reference for realizing overall optimal control of the whole HVAC system in the future.
series	Architectural Intelligence
email
last changed	2025/01/09 15:03

_id	ecaaderis2023_17
id	ecaaderis2023_17
authors	Migla, Lana, Lebedeva, Kristina, Bebre, Guna and Kaljusmaa, Liisa-Maria
year	2023
title	An Experimental Investigation of Latent Heat Storage for Solar cooling Systems using Paraffin Wax
source	De Luca, F, Lykouras, I and Wurzer, G (eds.), Proceedings of the 9th eCAADe Regional International Symposium, TalTech, 15 - 16 June 2023, pp. 55–60
summary	Latent heat thermal energy storage units employ phase change materials to store and release heat at a nearly constant temperature, ensure high heat transfer efficiency, as well as high charge and discharge capacity. Phase change materials (PCMs), allow a more compact, efficient, and therefore economical system to operate. Thermal Energy Storage (TES) systems are of growing importance within the energy awareness, because of TES can reduce the levelized cost of electricity of solar cooling systems. This paper proposes a comprehensive methodology where simulations were performed to demonstrate the phase change process of paraffin wax and to improve the effect of PCM modules on the heat transfer process. PCM modules were tested in the laboratory, then their impact on thermal energy storage were determinate. The rise of COP of solar absorption cooling system was calculated.
keywords	Solar energy, solar cooling, thermal energy storage, phase change material (PCM), latent heat
series	eCAADe
email
last changed	2024/02/05 14:28

_id	ddss9855
id	ddss9855
authors	Spinelli, Juçara and Krafta, Romulo
year	1998
title	Urban Land Value Distribution UnderConfigurational Scrutiny
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	In the present study were evaluated land parceling problems under aspects of spatial configuration related to land value (lv). Paradoxical cases occur in urban spaces, such as low spatial differentiation and high lv, or vice-versa. Determined urban areas are identified as having high centrality, with intense land use and occupation, and, therefore, high market value. Conversely, other urban areas are identified as having low centrality value, certain degradation, or lack of infrastructure and urban equipment, and, consequently, low lv. Empirical studies have proved satisfactory results interms of the correlation between measures of configuration and lv. These studies verify the convenience of the models used to describe significant aspects of spatial differentiation. The complementation of the methodological proposal is identified, and other components of urban space are calculated (plot dimension, infrastructure, normative aspects, etc.). These are determinant measures that characterize the local factor associated with measures that determine the morphological differentiation.This differentiation demonstrated that land value distribution, besides following centrality, depends, in greater or lesser extent, on the local factor. The results obtained, through a model that combines measures of centrality with local characteristics, approached reality because the model incorporated a greater number of variables which allowed the verification of correlated socioeconomic and spatial matters related to parceling, value, and configuration.
series	DDSS
email
last changed	2003/08/07 16:36

_id	caadria2022_474
id	caadria2022_474
authors	Wang, Xiang, Zhou, Ziqi, Lv, Xueyuan, Yuan, Philip F. and Chen, Lei
year	2022
title	DfD-based Design, Assembly, High-Accuracy Real-time Monitoring and Levelling Calibration for Large-scale Prefabricate Structure with Multiple Measuring Systems
doi	https://doi.org/10.52842/conf.caadria.2022.2.517
source	Jeroen van Ameijde, Nicole Gardner, Kyung Hoon Hyun, Dan Luo, Urvi Sheth (eds.), POST-CARBON - Proceedings of the 27th CAADRIA Conference, Sydney, 9-15 April 2022, pp. 517-526
summary	This article introduces a novel monitoring method for the construction of high-precision prefabricated structures based on multiple sensors and measurement technologies. The proposed method introduces the optical motion capture system and combines it with traditional construction measurement technology to achieve real-time dynamic monitoring of more than hundreds of points within a large construction area more than 1810m. Tolerance fitting algorithms and the correction methods are developed and testified to provide a global tolerance with ±1mm. Meanwhile a real-time visualization interface is developed to provide the feedback and analysis of the tolerance for each structure components. As demonstrator, such monitoring system is applied in the real construction of a DfD (Design for Disassembly)-based prefabricated steel structure in the "Water Cube‚ (Chinese National Aquatics Centre) in Beijing. With the demand to control the flatness tolerance within 6mm (within a 2550m area), a large area monitoring system was applied in the project and finally reduced the construction time within 20 days.
keywords	Design for Disassembly, Real-time Monitoring, Precise Levelling Calibration, Motion-capture System, Error Fitting Algorithm, SDG 9
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	cdrf2022_527
id	cdrf2022_527
authors	Xiang Wang, Yang Li, Ziqi Zhou, Xueyuan Lv, Philip F. Yuan, Lei Chen
year	2022
title	Levelling Calibration and Intelligent Real-Time Monitoring of the Assembly Process of a DfD-Based Prefabricated Structure Using a Motion Capture System
doi	https://doi.org/https://doi.org/10.1007/978-981-19-8637-6_45
source	Proceedings of the 2022 DigitalFUTURES The 4st International Conference on Computational Design and Robotic Fabrication (CDRF 2022)
summary	Conventional measuring techniques and equipment such as the level and total-station are commonly used in on-site construction to measure the position of building elements. However, a motion capture system can measure the dynamic 3D movements of markers attached to any target structure with high accuracy and high sampling rate. Considering the characteristics of prefabricated structures that is composed by lot of discrete building elements, advanced requirements for the on-site assembly monitoring is required. This paper introduces an innovative real-time monitoring technique for the DfD-based (Design for Disassembly) structure with the application of motion capture system and other hardware in an IoT-based BIM system. The design and construction method of the structure system, on-site setup of monitoring system and hardware, data acquisition and analysis method, calibration algorithm as well as the BIM system are further illustrated in the paper. The proposed method is finally applied in a real building project that is composed by thousand discrete building elements and covers a large area of 5025 m. As demonstrator, such monitoring system is applied in the real construction of a DfD-based prefabricated steel structure in the “Water Cube” (Chinese National Aquatics Centre) in Beijing. The building process is successfully recorded and displayed on-site with the digital twin model in the BIM system. The construction states of the building elements are gathered with different kind of IoT techniques such as the RfID chips and QR-Codes. With the demand to control the flatness tolerance within 6 mm (within a 2550 m area), a large area monitoring system was applied in the project and finally reduced the construction time within 20 days. The final tolerance is verified and further discussed2.
series	cdrf
email
last changed	2024/05/29 14:03

_id	architectural_intelligence2023_4
id	architectural_intelligence2023_4
authors	Xiang Wang, Ziqi Zhou, Xueyuan Lv, Li Yang, Philip F. Yuan & Lei Chen
year	2023
title	Intelligent renovation of existing Olympic venues: digital design and construction strategy of a DfD-based prefabricated structure system
doi	https://doi.org/https://doi.org/10.1007/s44223-022-00018-5
source	Architectural Intelligence Journal
summary	This article introduces introduces a new prefabricated and assembled steel structure system and its key construction technologies for repeated switching scenes in existing stadiums. This steel structure system follows the DfD design method, minimizing the volume of each group of structural member units and separating the connection interfaces between members. In order to improve the construction and assembly efficiency of all the structural components, this study establishes an assembly-oriented BIM model data system by adding customized attributes in the family library in Autodesk REVIT. By associating model attributes with on-site monitoring data of the construction process, this research realizes real-time acquisition and display of construction data of all components during the whole life cycle. At the same time, aiming at the requirements of high-precision positioning and digital dynamic monitoring in future on-site construction, this research proposes an innovative construction positioning monitoring method which combines motion capture system with traditional construction monitoring technology. By correcting the positioning data of motion capture system with traditional construction monitoring data, real-time dynamic monitoring of several monitoring points in a 12*15 m large site is realized and the measurement error is controlled within ±1 mm. This study takes the construction project of “ice-water conversion” from the main swimming pool of the National Swimming Center in the Summer Olympic Games to the curling venue of the Winter Olympic Games as an example to show the important role of relevant technology to improve the construction efficiency in the construction application for the renovation of existing Olympic venues.
series	Architectural Intelligence
email
last changed	2025/01/09 15:00

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