CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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Hits 1 to 20 of 10022

_id eaea2015_t3_paper20
id eaea2015_t3_paper20
authors Wroblewski, Wiktor
year 2015
title Urban Voids as Communication Gaps
source ENVISIONING ARCHITECTURE: IMAGE, PERCEPTION AND COMMUNICATION OF HERITAGE [ISBN 978-83-7283-681-6],Lodz University of Technology, 23-26 September 2015, pp.466-474
summary The paper deals with the problem of urban voids and their influence on the recognition of Lodz 19th-centry architectural heritage. Lodz is a post-industrial city with scores of wasteland in the very centre due to urban sprawl, downfall of the industry, and depopulation. Semiotic apparatus is used to analyse the role of urban voids in neglecting the national heritage of the cityscape by the inhabitants. It seems that urban voids may be treated as communication gaps. The paper proposes to restore legible articulation of the streetscape by adopting the disused and presently oversupplied urban areas for temporary land use and interim landscape, so that the urban continuum and national heritage become readable and appreciated.
keywords urban voids; cityscape; temporary land use
series EAEA
email
last changed 2016/04/22 11:52

_id c38c
authors Wrona, S., Kowal, S. and Rzadkiewicz, R.
year 1993
title The Basic Principles of CAAD Education: Warsaw School of Architecture Case
doi https://doi.org/10.52842/conf.ecaade.1993.x.e2u
source [eCAADe Conference Proceedings] Eindhoven (The Netherlands) 11-13 November 1993
summary Department of Architecture at Warsaw University of Technology is 78 years old. Its long tradition was built mainly around functionalists movements in architecture and till now has meaningful influence on approaches and methods in design teaching. Till now, the basic method of design teaching is individual work in small master's design classes in which students are designing by hand drawing, drafting and building models, which are in the same time creative methods ("designing by drawing or modelling") and communication media (mainly to communicate with the master or its assistant). Students are learning from the knowledge and design experience of a master, often following or imitating his workshop and aesthetic concepts. This traditional method was expensive but efficient in preparation of architects to their professional activities. Therefore, when we started with CAAD classes in mid 80-ties, the "design learning by computer modelling" was the basic issue.
series eCAADe
email
last changed 2022/06/07 07:50

_id 2a63
authors Wrona, S., Miller, D. and Klos, J.
year 1997
title The Systematization of Information in the Computer Aided Architectural Design
doi https://doi.org/10.52842/conf.ecaade.1997.x.e8l
source Challenges of the Future [15th eCAADe Conference Proceedings / ISBN 0-9523687-3-0] Vienna (Austria) 17-20 September 1997
summary Since the CAD methods were invented, the systematization of information in CAD has been strongly connected to the computerization of architect’s workshop. Nowadays, in 90., this systematization has to the great extent negative consequences. A designer understands the systematization of information through abilities and disabilities of the one, particular graphical aided documentation development system, which he deploys himself. The traditional method of design is clearly opposed to the computerized method. Data bases are seen by architects as a set of information describing particular and unique architectural project and some selected aspects correlated with narrow specialization of designer. Collaboration between participants of design process is still very challenging due to the usage of different tools and different systematization of information. It is necessary to define modern part of information in architectural design. The systematization of information should be a foundation for development of computer systems and not contrary, in this way it will be possible to overcome opposition between traditional and computerized techniques. Architect’s workshop, from the point of view of the informational structure of ongoing information exchange processes, should in greater part relay on the experience of structural analysis used for development of information systems in business. Effective utilization of computer methods requires the extension of collaboration between all the participants of design process, search for active access to distributed data bases (i.e. Internet) and increase of methodological consciousness (the ability to form own design strategies, methods and structures) indispensable for development of modern CAD systems which wouldn’t be limited to a computer graphics.
keywords CAAD, Collaboration, Databases, Information, Systematization, Workshop
series eCAADe
email
more http://info.tuwien.ac.at/ecaade/proc/wrona/wrona.htm
last changed 2022/06/07 07:50

_id 82ab
authors Wrona, Stefan K.
year 1986
title The Profits of CAAD Can Be Increased by an Integrated Participatory Design Approach
source Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 53-57
summary Computer-aided Architectural Design is understood in Poland as comprising all computer applications in an architectural design office. In Polish architectural practice (with a few exceptions) it is still under theoretical consideration and in an experimental phase. Therefore if we are talking about the future of CAAD in Poland we are thinking about a much more long-term future than for Western countries. However, if new economic and organizational changes initiated in Poland in the early 1980s continue, future problems and solutions in CAAD will, for us, become similar to those in Western countries.
series CAAD Futures
email
last changed 2003/05/16 20:58

_id 0237
authors Wrona, Stefan
year 1995
title VDS Virtual Design Studio
source CAD Space [Proceedings of the III International Conference Computer in Architectural Design] Bialystock 27-29 April 1995, pp. 227-232
summary The Department of Architecture Warsaw University of Technology was the first in Poland to take part in the third edition of the international student workshop -Virtual Design Studio. This year’s subject is a competition organized by ACSA 2A Center for Cultural and Religious Studies". The design is located on Miyajima Island in the Inland Sea of Japan near Hiroshima. VDS workshops are a proposal to create a new approach to architectural designing - working in joint groups, where the participants are separated by long distances. This idea wouldn't possible without an important tool - the InterNet. The information is sent mainly by E-mail through News Servers made by groups in each country. The News Server works as electronic pinup board where every student can locate his work. The multimedia tool -HyperDoc- permits students to easily and quickly look at other students' work. VDS'95 participants are divided into international groups of 5-7 people, They use almost every method of computer presentation: photorendering, animation, scanned freehand drawings and photos. The basic tool is CAD. Students also use traditional methods of representation like models, sketches, drawings. The Virtual Design Studio is an important experience. It shows a new concept of designing: Computer Mediated Design. The necessary contact between architect and client can be realized by the computer network. The problem of distance is eliminated. Conclusions from VDS activity will permit the creation in the future of a special net of design studios, where all discussions will be accomplished by computer. All over the world the network of Infoways will bring people together.
series plCAD
email
last changed 2003/05/17 10:01

_id cf2015_383
id cf2015_383
authors Wu, Chengde; Zarrinmehr, Saied; Asl, Mohammad Rahmani and Clayton, Mark J.
year 2015
title Facilitating fire and smoke simulation using Building Information Modeling
source The next city - New technologies and the future of the built environment [16th International Conference CAAD Futures 2015. Sao Paulo, July 8-10, 2015. Electronic Proceedings/ ISBN 978-85-85783-53-2] Sao Paulo, Brazil, July 8-10, 2015, pp. 383.
summary CFAST is a two-zone model which simulates fire growth and smoke transport. Manually modeling a building using CFAST user interface is a time consuming and error-prone process. In addition, the limitations in CFAST structure impede data transfer between CFAST and BIM (Building Information Modeling). In this research, we identified major limitations of CFAST, proposed solutions to the limitations, and developed a system for data interchange between BIM and CFAST. This greatly facilitated fire and smoke simulation. We further developed a visualization module to visualize the simulation results to overcome the problems when using SmokeView, an application developed by NIST (National Institute of Standards and Technology). A pilot test is conducted using this system. The simulation process was done in just a few minutes. This is expected to help architects to design buildings safer from building fires, and help students in learning building safety and fire related building codes.
keywords Fire simulation, building information modeling (BIM), CFAST, building fire evacuation
series CAAD Futures
email
last changed 2015/06/29 07:55

_id caadria2023_312
id caadria2023_312
authors Wu, Fangning
year 2023
title Assessing Spatial Accessibility to Public Facilities for Vulnerable People towards 15-Minute City in Hong Kong
doi https://doi.org/10.52842/conf.caadria.2023.1.535
source Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 535–544
summary Due to the COVID-19 pandemic, people started to rely more on their communities and attach great importance to the accessibility of public facilities at a hyperlocal level. The 15-Minute City concept, first put forth by Carlos Moreno in 2016, gradually gained popularity worldwide during the age of pandemics. This human-centric concept aims to build complete neighbourhoods that meet the daily needs of residents within 15 minutes by using non-motorized transport. However, few studies focus on vulnerable groups such as children and the elderly for the assessment of 15-Minute City. Therefore, this paper provides an assessment framework for spatial accessibility to public facilities for vulnerable people from the perspective of 15-Minute City. It is measured in three aspects: spatial distribution characteristics, service population ratio and number of facilities through the comparison between Sham Shui Po and Tin Shui Wai in Hong Kong. The result shows that the accessibility to public facilities needed in daily life for children in Sham Shui Po and Tin Shui Wai is relatively reasonable, while the accessibility for the elderly needs to be improved. The research can provide references for evaluating and optimizing spatial planning to promote health and well-being in Hong Kong and other cities.
keywords 15-Minute City, Vulnerable people, Spatial accessibility, Network analysis, Human-centric, New town
series CAADRIA
email
last changed 2023/06/15 23:14

_id caadria2023_311
id caadria2023_311
authors Wu, Hao, Gu, Sijia, Gao, Xiaofan, Luo, Jiaxiang and F. Yuan*, Philip
year 2023
title Extrusion-to-Masoning: Robotic 3D Concrete Printing of Concrete Shells As Building Floor System
doi https://doi.org/10.52842/conf.caadria.2023.2.139
source Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 139–148
summary Efficient floor systems can reduce the carbon footprint of building industry by reducing material, thereby responding to the UN Sustainable Development Goals (SDGs). Tile vault, a kind of masonry shell structure in history, can provide inspiration for extrusion-based 3D concrete printing. In this research, an “Extrusion-to-Masoning” perspective is proposed to evaluate, analysis, and simulate 3DCP. The variable-width filaments of 3DCP can be interpreted as variable-width bricks. The staggering pattern between different layers is studied. Three concrete shells with different layer-staggering patterns are printed and quantitative structural testing experiments are carried out. Then a totally printed floor slab prototype is designed and fabricated at the basis of one of the shells.
keywords 3d concrete printing, tile vault, concrete shell, efficient floor slab, extrusion-to-masoning
series CAADRIA
email
last changed 2023/06/15 23:14

_id caadria2022_406
id caadria2022_406
authors Wu, Hao, Li, Ziyan, Zhou, Xinjie, Wu, Xinyu, Bao, Dingwen and Yuan, Philip F.
year 2022
title Digital Design and Fabrication of a 3D Concrete Printed Funicular Spatial Structure
doi https://doi.org/10.52842/conf.caadria.2022.2.071
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. 71-80
summary In recent years, additive manufacturing (AM) and 3D concrete printing technologies have been increasingly used in the field of construction engineering. Several 3D concrete printing bridges were built with post-tensioning technology. However, the current post-tensioned 3D concrete printing projects are mostly in a single direction of force. There are fewer cases of concrete printing funicular spatial structures, and most funicular spatial structures are currently manufactured by casting-in-place in formwork. This paper presents a case of manufacturing spatial 3D concrete printed structure using post-tensioned technology with multiple force direction. The design of the non-parallel printing path, the joints between single units, and the post-tensioned steel cable system in the design and research process are discussed. A funicular spatial structure is built, and a method of manufacturing 3DCP funicular spatial structure is proposed.
keywords 3D concrete printing, Robotic fabrication, Prestressed concrete, Funicular spatial structure, Structural optimization, SDG 9, SDG 11, SDG 13
series CAADRIA
email
last changed 2022/07/22 07:34

_id 91fd
authors Wu, Jie and Gu, Jingwen
year 1999
title The Computer Media Method of Analysis of Architecture Works
doi https://doi.org/10.52842/conf.caadria.1999.097
source CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 97-103
summary The analysis of architecture works is through the design of architecture. It is closely related to the review of architecture and also is the most important method to research into and study architecture. But it hasnÌt been paid enough attention, because of the limitations of the traditional methods. Now with the development of the computer media technology and its wide use, there appears a new methodÛthe computer media analysis method, which has many advantages that the traditional methods havenÌt. In this paper, we discuss the frame, the process and the feature of the new method. And through the analysis of examples we explore the working of this method under the current condition. We hope through the research and the study of this new method, the analysis of architecture works can be used consciously by students, educators, and practitioners to think deeply about, research into, study architecture, and at the same time to creating better designs.
series CAADRIA
email
last changed 2022/06/07 07:57

_id acadia18_342
id acadia18_342
authors Wu, Kaicong; Kilian, Axel
year 2018
title Robotic Equilibrium: Scaffold Free Arch Assemblies
doi https://doi.org/10.52842/conf.acadia.2018.342
source ACADIA // 2018: Recalibration. On imprecisionand infidelity. [Proceedings of the 38th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-17729-7] Mexico City, Mexico 18-20 October, 2018, pp. 342-349
summary Compression only arch structures are structurally highly efficient in force equilibrium. However, the material efficiency is offset by the traditional use of scaffolds to position materials and counter the out of equilibrium forces during assembly. We introduce a method of sequentially assembling compression only structures without a scaffold by robotically maintaining the compression equilibrium in every step. A two-arm collaborative robotic setup was used to maintain force equilibrium throughout arch assembly with the arms taking turns first hot wire cutting and placing blocks and providing a temporary scaffold to support the arch end point.

To test the approach, a single catenary arch was generated using form-finding techniques and sequentially built from foam blocks. Moving forward we show the relationship between the joint valence (largest number of joined branches) of a multi-branched structure and the minimum number of robotic arms required for assembly using our initial technique. With only two robotic arms available, the technique was further developed to reduce the required number of arms per arch branch from two to one by attaching caterpillar tracks at the block supporting end effector. This allows a human to load the next block and the arm to move forward along the arch while maintaining equilibrium. Results show that robotic equilibrium scaffold free arch assembly is possible and can reduce scaffold waste and maintain the material efficiency of compression only structures. Future work will explore further applications of assistive robotics in construction replacing static construction aids with dynamic sensory feedback of equilibrium forces.

keywords work in progress, collaborative sequential assembly, robotic equilibrium, compression only structures, form finding
series ACADIA
type paper
email
last changed 2022/06/07 07:57

_id acadia23_v2_582
id acadia23_v2_582
authors Wu, Kaicong; Li, Chenming; Su, Wenjun
year 2023
title The Chair Game Experiment: Transforming Multiplayer Design Processes with Text-to-Image Generation and 2D-to-3D Modelling
source ACADIA 2023: Habits of the Anthropocene: Scarcity and Abundance in a Post-Material Economy [Volume 2: Proceedings of the 43rd Annual Conference for the Association for Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9891764-0-3]. Denver. 26-28 October 2023. edited by A. Crawford, N. Diniz, R. Beckett, J. Vanucchi, M. Swackhamer 582-595.
summary The urgency for an inclusive architectural design process in conceptualizing the built environment stems from the need to establish effective communication between under- represented groups and design professionals. However, various challenges hinder the development of an inclusive design process that accommodates diverse stakeholders. Individual designers or selective design teams are frequently limited by their own visions, causing them to potentially overlook alternative solutions. Moreover, stakeholders who lack professional training might struggle to articulate their expectations. The emergence of generative AI (artificial intelligence) technologies has significantly reduced the tech- nical barriers in design, and has empowered non-professionals to vividly express their ideas regarding forms and spaces. This has presented a valuable opportunity to better understand the perspectives of underrepresented groups through visual representations. Therefore, this research aims to explore the impact of image generation on the democ- ratization of the design process. Using chair design as a testing ground, we propose an evolutionary computing framework that simulates interactions among designers and participants empowered by emerging AI technologies. To investigate the potential impact of image generation, we have implemented a multiplayer design game to allow computing agents to compete in exploring 3D chair forms. Through this approach, we aim to gain insights into how image generation influences design decisions, whether it generates more diversified solutions, and what values could be introduced into the built environment.
series ACADIA
type paper
email
last changed 2024/12/20 09:13

_id ecaade2008_125
id ecaade2008_125
authors Wu, Kuan-Ying
year 2008
title Elastic Room
doi https://doi.org/10.52842/conf.ecaade.2008.905
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 905-912
summary This paper proposes a physical toolkit and a flexible software framework to simplify the design and exploration of interactive systems for multiple users, devices, and applications in a smart environment. The toolkit, called Elastic-Room, was designed as an infrastructure for interaction design, in which each device is a component that works collaboratively in the smart environment. The supporting software framework includes a dynamically reconfigurable intermediary which simplify the mapping of each device and also use simple protocol to broadcast information to each device. Finally, we demonstrate the Elastic-Room architecture by providing some implemented examples, which are organized in a prototype space of ubiquitous computing full of interactive components.
keywords Ubiquitous computing, tangible user interfaces, smart environments, interactive design
series eCAADe
email
last changed 2022/06/07 07:57

_id df53
authors Wu, M.-C., Tung, P.-C. and Hsieh, T.-Y.
year 2002
title Improvement of the horizontal directional drilling method by using an autonomous land vehicle with a radio direction finding system
source Automation in Construction 11 (1) (2002) pp. 75-88
summary This article discusses the improvement in the horizontal directional drilling method (HDD) by using an autonomous land vehicle (ALV) with a radio directional finding (RDF) system. The ALV with an RDF system carrying a receiver can locate a moving or static underground drill head and track it. Not limited to a pre-determined track or path, the ALV system utilizes its on board RDF system instantaneously to seek and to track a moving or static drill head. Compared to conventional systems, the system reduces the number of operators, minimizes labor costs, prevents accidents, and enhances the degree of automation. The design of the RDF system and how to locate a target are considered in this article. To overcome the difficulty in obtaining the precise dynamic model of the ALV with the RDF system, a "fuzzy logic controller" is designed to control such a system and make the system capable of tracking a target. Experimental results verify that such an RDF ALV system can track a moving or static target.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:23

_id caadria2016_311
id caadria2016_311
authors Wu, Ming-Ying; Kuan-Lin Chen and Yu-Chun Huang
year 2016
title A smart bracelet: An alternative interfaces between performer and audience
doi https://doi.org/10.52842/conf.caadria.2016.311
source Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 311-319
summary Performing arts has been one of the main recreational activ- ities in people’s life. However, most performing arts, performers usu- ally used one direction to express performing contents to the audienc- es. It means there is no real-time communication channel between the performers and audience in most performance. Hence the challenge of this research is how to provide a better relationship between the per- formers and audience without disturbing the show? This research we implemented a bio-sensor embedded smart bracelet which is able to transmit the feelings from user’s to stage by monitoring biological signal (ex: Galvanic skin response) immediately. When most audienc- es have the same physiological reaction to a certain level, the stage scene would be changed the colour and pattern to let performers know how the audiences’ feeling now. Performers would enhance self- confidence and then incorporate the audiences’ feedback to create their future performance. By applying this interactive interface to per- forming arts, we explored a new vision of performance that can not only enhance the diversity of performance but also provide a comfort- able communication channel between performers and audiences, and improve the confidence of the performers.
keywords Performing arts; computational technology; interactive interface
series CAADRIA
email
last changed 2022/06/07 07:57

_id ecaadesigradi2019_538
id ecaadesigradi2019_538
authors Wu, Ngai Hang, Dimopoulou, Marina, Hsieh, Han Hsun and Chatzakis, Christos
year 2019
title Rawbot - A digital system for AR fabrication of bamboo structures through the discrete digitization of bamboo
doi https://doi.org/10.52842/conf.ecaade.2019.2.161
source Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 2, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 161-170
summary This paper presents the developments of a method to assemble bamboo poles through mobile algorithmic instructions, based on material analysis, machine learning procedures and applied augmented reality. The methods were evaluated in a series of tests where the trained system was successfully used to propose structurally sound aggregations, according to the given resources. The results suggest potential benefits for completion of house-scale assemblies by untrained users through automated tools.
keywords Machine Learning; Object Recognition; Augmented Reality; Digital Fabrication; Discrete Digitization; Bamboo
series eCAADeSIGraDi
email
last changed 2022/06/07 07:57

_id acadia03_019
id acadia03_019
authors Wu, Pei-Ling
year 2003
title Exploring Playful and Effective Digital Design Process with Games: A Framework for Digital Design Studio Teaching and Learning
doi https://doi.org/10.52842/conf.acadia.2003.143
source Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 143-149
summary The idea of developing a framework, to integrate design studios and computer graphics, is derived from the nature of architectural design, which has always combined creativity and technology. Furthermore, as computers are being increasingly used in design studios, a systematic digital pedagogy, which can take advantage of the strengths of computers in all stages of design, should be developed simultaneously to facilitate learning. This paper attempts to propose a playful and effective digital design process that can be flexibly applied to computer-based design studios and design-based computer graphics courses. The pedagogical framework is based on a set of digital design games that follows a general design process presented by the author. First, the components of digital design games will be defined and the relations of those game components will be clearly depicted. Then, a framework will be proposed, followed by the use of an example demonstrating applications of the framework. Continual advancements in digital technology have created generation gaps among teachers at architectural schools. A structured digital design process can help teachers, with varying levels of computer-capabilities know what, when, and how, adjustments should be made to achieve the goal of digital design education.
keywords Digital design process, Playful and Effective, Digital Design Games
series ACADIA
email
last changed 2022/06/07 07:57

_id acadia23_v2_270
id acadia23_v2_270
authors Wu, Renhu; Moriuchi, Shunta; Li, Sihan; Chen, Yinglei; S. Anderson, Jeffrey; King, Nathan; Stuart-Smith, Robert
year 2023
title Dynamic Slip Casting: An Efficient Robotic Approach to Geometrically Variable Ceramic Part Production
source ACADIA 2023: Habits of the Anthropocene: Scarcity and Abundance in a Post-Material Economy [Volume 2: Proceedings of the 43rd Annual Conference for the Association for Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9891764-0-3]. Denver. 26-28 October 2023. edited by A. Crawford, N. Diniz, R. Beckett, J. Vanucchi, M. Swackhamer 270-280.
summary Clay slip is renowned for its versatility, enabling seamless molding, casting, and firing processes that facilitate the production of precisely-shaped and diverse products with varied sizes. However, its limitation in producing variable components without new molds presents challenges for integration into architectural practices where variability is often advantageous. This paper introduces an innovative slip casting approach that allows for the production of diverse clay forms using a single mold by employing a 6-axis articulated robot to rotate the mold during the solidification process. A simulation program predicts the solidified slip's shape in realtime, and a customized end effector attaches the mold to a robotic arm and periodically injects additional slip for precise edge control. The proposed method combines traditional slip casting with industrial robotics, offering greater control over geometric qualities without increasing mold demands. This study offers a potential solution for advancing ceramic manufacturing by overcoming conventional limitations, which could offer opportunities for increased innovation and creativity in architecture and beyond.
series ACADIA
type paper
email
last changed 2024/12/20 09:12

_id 1083
authors Wu, Rui
year 2002
title Computer Aided Dimensional Control in Building Construction
source Eindhoven University of Technology
summary Dimensional control in the building industry can be defined as the operational techniques and activities that are necessary, during the construction process of a building, for the assurance of the defined dimension quality of a building (Hoof, 1986). Efficient and precise dimensional control of buildings under construction is becoming ever more important because of changes in the construction industry. More prefabricated components are used; more regulations appear; newly designed buildings have more complex shapes, and building construction is speeding up. To ensure the predefined dimensional quality, a plan of dimensional control must be designed, on the basis of building drawings and specifications delivered by architects, before the building is constructed. The dimensional control plan must provide site personnel with adequate information on, among others, setting out and assembling building components, which can often be done by means of Total Stations. The essence of designing a dimensional control plan is to find out which points should be used as positioning points, which points should be set out in advance or controlled afterwards, and not to forget why. In an effort to contribute to the improvement of the dimensional control of on-site construction projects, this research tries to capture the knowledge required to design an adequate dimensional control plan and make that knowledge more generally available, and build a digital connection between CAD systems and Total Stations, focusing on prefabricated concrete building structural elements. The instrument developed in this research for capturing of essential dimensional control information and knowledge makes use of Product Data Technology (PDT) and Knowledge Technology (KT). The chosen solution supports the stochastic analysis of optimal positioning points taking account of various sorts of deviations and their mutual relationships. The resulting information model has been written in a standardized information modelling language called UML (Unified Modelling Language). The model has been implemented in a Dimensional Control System (DCS) and applied in the “La Tour” construction project in Apeldoorn, the Netherlands. The DCS provides a digital way to bridge the floor plan design with dimensional control, predict dimensional deviation limits and output the data needed for a Total Station. The case study of “La Tour” tests the UML model and prototype of the DCS. The results prove that direct positioning of objects (by putting reflectors on the objects and using a Total Station and by inputting coordinates extracted and calculated from the AutoCAD drawings) provides higher speed, accuracy and reliability. It also shows a way to (pre)position free form objects in 3D where traditional methods cannot. In conclusion: (1) it seems to be justified to expect that the application of the DCS will contribute to increased confidence in dimensional control and the reduction of costs of failure, which potentially could support the increased use of cheaper construction methods, and will also contribute to the improvement of building design and construction process. (2) the scientific contribution of this research is a first step towards providing dimensional quality in a construction process covered by stochastic dimensional uncertainty, even for positioning of free form objects.
keywords Construction Management; Constructional Engineering; Computer Applications
series thesis:PhD
last changed 2003/02/12 22:37

_id caadria2021_044
id caadria2021_044
authors Wu, Shaoji
year 2021
title 3D Space Resilience Analysis of Commercial Complex - Beijing APM as an Example
doi https://doi.org/10.52842/conf.caadria.2021.2.457
source A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 2, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 457-466
summary Commercial complexes have played an increasingly important role in contemporary cities. Due to the occurrence of crowded people or equipment overhauls, some paths in a commercial complex may become impassable, which can be seen as disruptions to its spatial system. This paper provides a practical method to quantify the spatial resilience of a commercial complex taking Beijing APM as an example. This study can be divided into the following three steps. First, transforming the realistic spatial path system to a directed network model. Second, using topological, metric, and angular distance as edge weight to calculate the centrality and present its distribution. Third, using two disruption processes, randomized and attractor-guided strategy, evaluates the spatial networks resilience. There are three conclusions from this study. The first one is the process of disruption is non-linear, and there is a phase transition process when it reaches the critical threshold. The second one is the most efficient disruption method is the topological BC attractor-guided strategy. The last one is the resilience of a commercial complex, whose 3D spatial networks resilience is lower than the 2D spatial networks resilience by comparison with Duan and Lus (2013) study.
keywords Resilience; Robustness; Network Secience; Commercial Complex
series CAADRIA
email
last changed 2022/06/07 07:57

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