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Most retaining walls and box culverts built for arterial road construction are simple, and the design process of these structures is often repetitive and labor-intensive because they are so similar in structural configuration. Although some integrated design automation systems developed for retaining walls and box culverts have expedited the design process of these structures, the process of collecting and distributing the resultant engineering documents has not been fully integrated with the computer applications. We have been developing a Web-based design automation system to manage the resultant documents as well as to speed up the repetitive design process. Manipulation of engineering drawings in the Web page is one of the critical functions needed for Web-based design automation. eXtensible Markup Language (XML) and XML-based vector graphics are expected to facilitate the representation of engineering drawings in the Web page. In this paper, we present how we used XML and Scalable Vector Graphics (SVG) to compose engineering drawings and represent them in the Web page. XML Data Island we designed to define drawing components turned out effective in manipulating the engineering drawings in the Web page.
Many structures in different engineering applications suffer from cracking. In order to make reliable prognosis about the serviceability of those structures it is of utmost importance to identify cracks as precisely as possible by non-destructive testing. A novel approach (XIGA), which combines the Isogeometric Analysis (IGA) and the Extended Finite Element Method (XFEM) is used for the forward problem, namely the analysis of a cracked material, see [1]. Applying the NURBS (Non-Uniform Rational B-Spline) based approach from IGA together with the XFEM allows to describe effectively arbitrarily shaped cracks and avoids the necessity of remeshing during the crack identification problem. We want to exploit these advantages for the inverse problem of detecting existing cracks by non-destructive testing, see e.g. [2]. The quality of the reconstructed cracks however depends on two major issues, namely the quality of the measured data (measurement error) and the discretization of the crack model. The first one will be taken into account by applying regularizing methods with a posteriori stopping criteria. The second one is critical in the sense that too few degrees of freedom, i.e. the number of control points of the NURBS, do not allow for a precise description of the crack. An increased number of control points, however, increases the number of unknowns in the inverse analysis and intensifies the ill-posedness. The trade-off between accuracy and stability is aimed to be found by applying an inverse multilevel algorithm [3, 4] where the identification is started with short knot vectors which successively will be enlarged during the identification process.
The availability of the WWW technology and the introduction of the Internet as basic resource like water, electricity or gas changes dramatically normal live, business and of course civil engineering. New technologies enable innovative technical solutions and offer new potential for improvements towards support of humans nature appropriate ways of working. This demands a new culture of work and collaboration. To contribute to theses challenges is a matter the discipline 'Bauinformatik' by supporting related research, development, education and training in civil engineering. This contribution to the IKM Conference 2000 in Weimar sketches selected research and education activities of the institutes of the authors on the topics of WWW based simulation systems (example WEASEL) and of WWW based project platforms (projects MorWin and TaiGer as well as an European education experiment). Both topics supports the collaboration by new ways of tele cooperation in international, heterogeneous and interdisciplinary engineering. Demonstration from this developments and projects will be used to illustrate the dimension of changes in civil engineering in due to modern ICT.
Martin Peschken studied History of Art and Literature in Berlin and Madrid. In 2005 he completed his doctoral studies in comparative literature at Freie Universität Berlin. He worked then as a curator of the gallery “Laden V-17” in Berlin. In 2005 he joined the project-team of International Building Exhibition “Stadtumbau 2010” in Saxony-Anhalt based at Stiftung Bauhaus Dessau, where he curated several exhibitions and urban projects. He currently works as Scientific Assistant at Technische Universität Braunschweig in the department of “History and Theory of Architecture and Urbanism”.
Am 4. Oktober 2007 fand im Rahmen des Forschungsprojektes „Lebenszyklusorientiertes Management öffentlicher Liegenschaften am Beispiel von Hochschulen und Wissenschaftseinrichtungen“ in Weimar der Workshop „PPP-Eignung und Vorgehensweise bei Hochschulprojekten“ mit über 60 Vertretern von Hochschulen, Studentenwerken, Ministerien, PPP Task Forces und Liegenschaftsbetrieben der Länder statt. Im Beitrag erfolgt die Zusammenstellung der Präsentationen der Referenten.
Yolanda Ortega Sanz is an architect and associate professor at Polytechnic School, Universitat de Girona, Catalonia, Spain; where she teaches architectural design. Ortega was educated at School of architecture in Barcelona and Arkitektskolen i Aarhus, Denmark. Later on, she received a grant to be a young researcher at Danmarks Kunstbibliotek, Copenhagen. Currently, she is PhD Candidate in the research group FORM where she develops her thesis entitled “Nordic assembly” focus on Modern Architecture in Nordic countries. Her research has been published and presented in several conferences as: 1st International Conference on contemporary architects: Jørn Utzon, Sevilla, Spain; 1st Conference on architectural competition, Nordic Symposium, KTH, Stockholm, Sweden; or Responsibilities and Opportunities in Architectural Conservation, CSAAR, Amman, Jordan.
WECHSELNDE ZUSCHREIBUNGEN
(2011)
Steffen de Rudder, Dr.-Ing., ist Architekt und wissenschaftlicher Mitarbeiter an der Bauhaus-Universität Weimar. Er lehrt städtebauliches Entwerfen und forscht zu Themen der Architektur- und Stadtbaugeschichte. 1996 Lehrbeauftragter am Kunsthistorischen Institut der Humboldt-Universität zu Berlin, 1990 bis 2001 selbstständiger Architekt in Potsdam und Berlin (Neubau, Sanierung, Denkmalpflege). Veröffentlichungen zur Bauhaus-Rezeption, zur amerikanischen Architekturgeschichte der Moderne und zur Stadtentwicklung in Berlin und in Thüringen. 2007 erschien: „Der Architekt Hugh Stubbins. Amerikanische Moderne der Fünfziger Jahre in Berlin“.
This study aims at constructing the simulation system of distribution patterns of solar irradiance, sunshine duration and sky factor with the user-friendly interface and sharing this system with users on the Internet. The characteristics of this simulation system are as follows: (1) Web-based user interface, (2) Accessible system through the Internet and (3) Sunlight and skylight simulation based on physically accurate equations with considering various sky conditions and the reflection from the surface of objects. As a case study, impact of the development plans are analyzed and evaluated using this system. Solar irradiance, sunshine duration and sky factor are calculated at the surface of the buildings and open spaces every 10 minutes from 8 to 16 on the winter solstice. The values of these indices are expressed as the ratio to those calculated under the condition with no buildings. In conclusion, this web-based simulation system can be useful for visualizing the sunlight and skylight conditions on outdoor open spaces and the surface of the buildings to evaluate development plans objectively. Users can make access to the system from almost all of the computers connected with the Internet and modify parameters by themselves to get desirable results. Further improvement of the user interface is necessary using more advanced technology of CGI, Java and JavaScript.