TY - CHAP A1 - Ward, Michael A1 - Thorpe, Tony A1 - Price, Andrew T1 - The Re-use of Site Data to Inform Business Processes N2 - The increased implementation of site data capture technologies invariably results in an increase in data warehousing and database technologies to store captured data. However, restricted use of data beyond the initial application could potentially result in a loss of understanding of site processes. This could in turn lead to poor decision making at production, tactical and strategic levels. Concrete usage data have been collected from two piling processes. These data have been analysed and the results highlighted potential improvements that could be made to existing site management and estimating processes. A cost benefit analysis has been used to support decision making at the strategic level where the identified improvements require capital expenditure. KW - Bauwerk KW - Datenmanagement KW - Baustelle KW - Controlling Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1308 ER - TY - CHAP A1 - van Rooyen, G.C. A1 - Olivier, A. H. T1 - Notes on structural analysis in a distributed collaboratory N2 - The worldwide growth of communication networks and associated technologies provide the basic infrastructure for new ways of executing the engineering process. Collaboration amongst team members seperated in time and location is of particular importance. Two broad themes can be recognized in research pertaining to distributed collaboration. One theme focusses on the technical and technological aspects of distributed work, while the other emphasises human aspects thereof. The case of finite element structural analysis in a distributed collaboratory is examined in this paper. An approach is taken which has its roots in human aspects of the structural analysis task. Based on experience of how structural engineers currently approach and execute this task while utilising standard software designed for use on local workstations only, criteria are stated for a software architechture that could support collaborative structural analysis. Aspects of a pilot application and the results of qualitative performance measurements are discussed. KW - Ingenieurbau KW - Verteiltes System KW - Planungsprozess KW - Modellierung KW - Finite-Elemente-Methode Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1451 ER - TY - CHAP A1 - Tsutsumi, Kazutoshi A1 - Hashimoto, Hiromi T1 - A Development of the Building Kansei Information Retrieval System N2 - The purpose of this research is to develop the method to retrieve a building name from the impression of the building. First, the images of the building are registered as database by the questionnaire. Next, the images of the objective building are compared with the degree of matching in image databases, and the building with high synthetic matching degree is retrieved. This system could get a good retrieval result. Moreover, image processing was done, and image databases are trained by neural network from the amount of characteristics of the image, and the retrieval system by image processing was examined. KW - Mehragentensystem KW - Lernendes System KW - Informationssystem Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1884 ER - TY - CHAP A1 - Tsou, Jin-Yeu A1 - Lam, Selina A1 - Wong, Wing Kin Gary T1 - Design of Rapidly Assembled Isolation Patient Ward – IT-Supported Collaborative Design Process between Architects and Medical Officers N2 - An important feature of the 2003 SARS outbreak in Canada, Singapore, and Hong Kong was that many health care workers (HCWs) developed SARS after caring for patients with SARS. This has been ascribed to inadequate or ineffective patient isolation. However, it is difficult for dense cities to provide sufficient isolation facilities within a short period of time. This has raised concerns from the public for new strategies in the planning and design of isolation facilities. Considering that SARS or other infectious diseases could seriously damage our society’s development, isolation facilities that could be rapidly and economically constructed with appropriate environmental controls are essential. For this reason, the design team of the Department of Architecture collaborated with a special task force from the Faculty of Medicine, who are the frontline medical officers treating the SARS patients, to design Rapidly Assembled Isolation Patient Wards. Both architecture and medicine are well established disciplines, but they have little in common in terms of the mode of knowledge construction and practice. This induced much intellectual exploration and research interest in conducting this study. The process has provided an important reference for cross disciplinary studies between the architectural and medical domains. KW - Architektur KW - Verteiltes System KW - Krankenhaus KW - SARS Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1748 ER - TY - CHAP A1 - Tonn, Christian A1 - Wolkowicz, Christian A1 - Thurow, Torsten T1 - Plausibility in Architectural Design - DOMEdesign – Software Support for the formal shaping and architect-oriented design of shell structures N2 - Complex gridshell structures used in architecturally ambitious constructions remain as appealing as ever in the public realm. This paper describes the theory and approach behind the software realisation of a tool which helps in finding the affine self-weight geometry of gridshell structures. The software tool DOMEdesign supports the formal design process of lattice and grid shell structures based upon the laws of physics. The computer-aided simulation of suspension models is used to derive structurally favourable forms for domes and arches subject to compression load, based upon the input of simple architectonic parameters. Irregular plans, three-dimensional topography, a choice different kinds of shell lattice structures and the desired height of the dome are examples of design parameters which can be used to modify the architectural design. The provision of data export formats for structural dimensioning and visualisation software enables engineers and planners to use the data in future planning and to communicate the design to the client. KW - Architektur KW - Verteiltes System KW - Schale Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1812 ER - TY - CHAP A1 - Thurow, Torsten A1 - Donath, Dirk T1 - A vision of an adaptive geometry model for computer-assisted building surveying N2 - The paper describes a concept for the step-by-step computer-aided capture and representation of geometric building data in the context of planning-oriented building surveying. Selected aspects of the concept have been implemented and tested as prototypes. The process of step-by-step capture and representation is determined by the order in which the user experiences the building. Only the information that the user knows (can see) or can reasonably deduce is represented. In addition approaches to the flexible combination of different measuring techniques and geometric abstractions are described which are based upon geodetic computational adjustment. KW - Architektur KW - Verteiltes System KW - Bauaufnahme Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1722 ER - TY - CHAP A1 - Taha, M. M. Reda A1 - Sherif, Alaa A1 - Hegger, Josef T1 - A nouvelle approach for predicting the shear cracking angle in RC and PC beams using artificial neural networks N2 - The truss model for predicting shear resistance of reinforced concrete beams has usually been criticized because of its underestimation of the concrete shear strength especially for beams with low shear reinforcement. Two challengers are commonly encountered in any truss model and are responsible for its inaccurate shear strength prediction. First: the cracking angle is usually assumed empirically and second the shear contribution of the arching action is usually neglected. This research introduces a nouvelle approach, by using Artificial Neural Network (ANN) for accurately evaluating the shear cracking angle of reinforced and prestressed concrete beams. The model inputs include the beam geometry, concrete strength, the shear reinforcement ratio and the prestressing stress if any. ... KW - Neuronales Netz KW - Wasserbau KW - Scherung KW - Rissbildung Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1071 ER - TY - CHAP A1 - Swaddiwudhipong, Somsak A1 - Tho, Kee Kiat A1 - Liu, Zishun T1 - Material characterization using artificial neural network N2 - Indentation experiments have been carried out over the past century to determine hardness of materials. Modern indentation machines have the capability to continuously monitor load and displacement to high precision and accuracy. In recent years, research interests have focussed on methods to extract material properties from indentation load-displacement curves. Analytical methods to interpret the indentation load-displacement curves are difficult to formulate due to material and geometric nonlinearities as well as complex contact interactions. In the present study, an artificial neural network model was constructed for interpretation of indentation load-displacement curves. Large strain-large deformation finite element analyses were first carried out to simulate indentation experiments. The data from finite element analyses were then used to train the artificial neural network model. The artificial neural network model was able to accurately determine the material properties when presented with load-displacement curves which were not used in the training process. The proposed artificial neural network model is robust and directly relates the characteristics of the indentation loaddisplacement curve to the elasto-plastic material properties. KW - Neuronales Netz KW - Wasserbau KW - Werkstoffprüfung Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1550 ER - TY - CHAP A1 - Suzuki, Aketo T1 - Numerical Analysis for Prediction as to Influence of Digging a Tunnel on Groundwater N2 - This paper describes monitoring of the in-valley discharge and underground water level at the place where the tunnel will be constructed and also, the numerical analysis for prediction applying the Tank Model and Linear Filter Method to calculate the prediction. The application of these analyses has actually allowed the change of underground water level to be grasped and more effective information system to be established by comparing the real-time monitoring data with the real-time calculation of prediction. KW - Mobile Computing KW - Funknetz KW - Tunnelbau Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1133 ER - TY - CHAP A1 - Soibelman, Lucio A1 - O'Brien, William A1 - Elvin, George T1 - Collaborative Design Processes: A Class on Concurrent Collaboration in Multidisciplinary Design N2 - The rise of concurrent engineering in construction demands early team formation and constant communication throughout the project life cycle, but educational models in architecture, engineering and construction have been slow to adjust to this shift in project organization. Most students in these fields spend the majority of their college years working on individual projects that do not build teamwork or communication skills. Collaborative Design Processes (CDP) is a capstone design course where students from the University of Illinois at Urbana-Champaign and the University of Florida learn methods of collaborative design enhanced by the use of information technology. Students work in multidisciplinary teams to collaborate from remote locations via the Internet on the design of a facility. An innovation of this course compared to previous efforts is that students also develop process designs for the integration of technology into the work of multidisciplinary design teams. The course thus combines both active and reflective learning about collaborative design and methods. The course is designed to provide students the experience, tools, and methods needed to improve design processes and better integrate the use of technology into AEC industry work practices. This paper describes the goals, outcomes and significance of this new, interdisciplinary course for distributed AEC education. Differences from existing efforts and lessons learned to promote collaborative practices are discussed. Principal conclusions are that the course presents effective pedagogy to promote collaborative design methods, but faces challenges in both technology and in traditional intra-disciplinary training of students. KW - Hochschulbildung KW - Entscheidungsunterstützung KW - Computer Supported Cooperative Work Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1948 ER - TY - CHAP A1 - Schäffler, Michael T1 - Fachkunde des Generalunternehmers versus Fachkunde des Fachbetriebes – Praxisbericht zur Ausführung eines GU-Auftrages N2 - Möglichkeiten der Projektrealisierung: Einzelvergabe der Planungs- und Bauaufgaben, Vergabe aller Planungs- und Bauaufgaben an einen Generalunternehmer. Die frühzeitige Einbindung eines erfahrenen und fachkundigen Generalunternehmers gibt dem Auftraggeber die Möglichkeit, bei minimiertem Risiko zu einer wirtschaftlich und bautechnisch optimalen Lösung seiner Bauaufgabe zu kommen. KW - Baubetriebslehre KW - Ausschreibung KW - Öffentlicher Auftrag / Vergabe KW - Generalunternehmer Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-7195 ER - TY - CHAP A1 - Schneider, Mike T1 - Radio Frequency Identification (RFID) Technology and its Applications in the Commercial Construction Industry N2 - This paper is a report of Radio Frequency Identification (RFID) technology and its potential applications in the commercial construction industry. RFID technology offers wireless communication between RFID tags and readers with non line-of-sight readability. These fundamental properties eliminate manual data entry and introduce the potential for automated processes to increase project productivity, construction safety, and project cost efficiency. Construction contractors, owners, and material suppliers that believe technology can further develop methods and processes in construction should feel obligated to participate in RFID studies for the advancement of the construction industry as a whole. KW - RFID KW - Automatische Identifikation KW - Materialflusssteuerung KW - Bauindustrie Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1061 ER - TY - CHAP A1 - Schley, Frank A1 - Mejstrik, Marcus A1 - Holz, K.-Peter T1 - Network Based Co-operation Platform for Geotechnical Engineering N2 - This paper describes an approach to support co-operation of experts in heterogeneous geotechnical engineering project environments during both regular execution and handling of exceptional situations. A co-operation platform is introduced which is based on a generalized information model mapping key information about the construction project, the construction process as well as the organization structure. Several tools are provided to operate the information model in a network based environment. KW - Ingenieurbau KW - Verteiltes System KW - Planungsprozess KW - Modellierung KW - Geotechnik Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1431 ER - TY - CHAP A1 - Schink, Claus-Jürgen A1 - Koch, Volker T1 - Interdisciplinary Cooperation Modules in Mobile Networks N2 - The contribution describes the didactical integration of wireless access networks for the campus of the University of Karlsruhe in the education of architects and engineers. It focuses on the development of an interdisciplinary communication network to encourage and promote the communication and collaboration between students. The project assumes that significant learning progresses in net-based learning scenarios are based upon the synchronous and asynchronous cooperation between the students themselves. The remote cooperation across borders of disciplines makes high demands on capacity in communicating and cooperating of the involved persons as well as on the supporting tools. Therefore, the collective acquisition of knowledge and cooperation has to be trained intensively during the studies. Based on the design and project oriented cooperation platform netzentwurf.de the authors developed the tools “Jobadmin“ to administrate multidisciplinary workgroups, the “Swarm Knowledge Catalogue“ to collect and store knowledge and “LivingCampus“, an instrument providing basic services for dynamic communication. KW - Architektur KW - Verteiltes System KW - Mobile Computing KW - Rechnernetz Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1788 ER - TY - CHAP A1 - Scheer, Sergio A1 - Gama, Carmen Lúcia G. T1 - Learning objects for a teaching and learning network in structural engineering : Developing learning objects for a structural engineering educational network N2 - Information and Communication Technologies (ITC) in education have been extensively discussed nowadays. In this e-learning scenario, the construction and use of environments that support teaching and learning is a reality. Therefore, for time and general resource savings it is crucial the access to hypermedia contents with great interactivity and with high reusability. Substantial efforts have been centered in the search for a metadata proposal (metadata is a generic term used to describe data that can be used to identify and to describe common characteristics among different documents) that can be standardized and is system independent for the so called learning objects. KW - Bautechnik KW - Computerunterstütztes Lernen KW - Wissensverarbeitung KW - learning objects KW - repository KW - applets KW - reusability KW - structural engineering Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-856 ER - TY - CHAP A1 - Scheer, Sergio A1 - Dos Santos, Aguinaldo A1 - Hinks, John T1 - An approach for promoting knowledge exchange on production practices through the Internet N2 - Recent research shows that current learning strategies in construction industry have not been effective in implementing lean principles in construction. With that in mind the researchers set to investigate an alternative learning strategy in order to promote learning at the international level. A web-based environment, was developed for this project with the intent of promoting learning and knowledge exchange on the theory and practice of "process transparency" across different countries. KW - Bautechnik KW - Computerunterstütztes Lernen KW - Wissensverarbeitung KW - pull learning KW - transparency KW - knowledge exchange KW - web-based learning Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-821 ER - TY - CHAP A1 - Schapke, Sven-Eric A1 - Scherer, Raimar J. T1 - A Four Layer Bayesian Network for Product Model Based Information Mining N2 - Business and engineering knowledge in AEC/FM is captured mainly implicitly in project and corporate document repositories. Even with the increasing integration of model-based systems with project information spaces, a large percentage of the information exchange will further on rely on isolated and rather poorly structured text documents. In this paper we propose an approach enabling the use of product model data as a primary source of engineering knowledge to support information externalisation from relevant construction documents, to provide for domain-specific information retrieval, and to help in re-organising and re-contextualising documents in accordance to the user’s discipline-specific tasks and information needs. Suggested is a retrieval and mining framework combining methods for analysing text documents, filtering product models and reasoning on Bayesian networks to explicitly represent the content of text repositories in personalisable semantic content networks. We describe the proposed basic network that can be realised on short-term using minimal product model information as well as various extensions towards a full-fledged added value integration of document-based and model-based information. KW - Bauwerk KW - Datenmanagement KW - Produktmodell Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1207 ER - TY - CHAP A1 - Rueppel, Uwe A1 - Meißner, Udo F. A1 - Greb, Steffen T1 - A Petri Net based Method for Distributed Process Modelling in Structural Engineering N2 - The contribution introduces a method for the distributed process modelling in order to support the process orientation in Structural Engineering, i.e., the modelling, analysis and management of planning processes. The approach is based on the Petri Net theory for the modelling of planning processes and workflows in Structural Engineering. Firstly, a central and coarse process model serves as a pre-structuring system for the detailed modelling of the technical planning activities. Secondly, the involved planning participants generate distributed process models with detailed technical workflow information. Finally, these distributed process models will be combined in the central workflow net. The final net is of great importance for the process orientation in Structural Engineering, i.e., the identification, publication, analysis, optimization and finally the management of planning processes. KW - Ingenieurbau KW - Verteiltes System KW - Planungsprozess KW - Modellierung KW - Petri-Netz Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1338 ER - TY - CHAP A1 - Rueppel, Uwe A1 - Klauer, Thomas T1 - Internet-based Workflow-Management for Civil Engineering Projects N2 - The growing competition pressure in the building industry increases the demands on the design and construction processes in respect to economical, technical and time aspects. These demands require efficient improvements of the value-added chain, which can be realized mainly with the usage of innovative information- and communication-technologies. To support the collaboration of all participants involved in a certain building project the Workflow-Management-System “BauKom-Online” has been developed. In the focus of the system is to support the coordination of the participants and their information exchange. Such a software-method is well suited to ensure a high quality planning process. The modelling of business-processes enables a better self-comprehension of the participants work and helps to enhance the project performance. The system architecture of BauKom-Online contains two basic components: the processmodelling tool and the workflow-engine. The process-model contains of activities and states of the planning and construction processes and their relations. These connected processes compose the workflow. Such a process-model for engineering purposes has to satisfy several needs, e.g., the consideration of planning and building alternatives, dynamic changes of the model during execution of the project and the linkage to further technical objects like costs, building structure, specifications and documentmanagement. Furthermore, the scheduling of the project can be done within the process-model and can be visualized as a Gantt-diagram. ... KW - Baubetrieb KW - Computerunterstütztes Verfahren KW - Prozessmanagement KW - Internet Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1647 ER - TY - CHAP A1 - Rueppel, Uwe A1 - Gutzke, Thomas T1 - Groundwater-Monitoring based on dynamic co-operative eGovernment-Processes N2 - As a result of the pilot-project “Grundwasser-Online” the supervision and the active controlling of large monitoring- and catchment-areas are realised by a co-operative integration of all related institutions, a synchronisation-process to combine all distributed data into one central server database, and a high-level eGovernment-Service to provide evaluated information over the internet. Based on this software system the local authorities are able to supervise the groundwater-levels and to find adequate decisions, which finally result in official permissions for the usage of groundwater-reservoirs by the water supply companies. KW - Baubetrieb KW - Computerunterstütztes Verfahren KW - Grundwasser KW - Monitorüberwachung Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1611 ER -