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Am 31. März 2008 veranstalteten die Professur Baubetrieb und Bauverfahren und die Juniorprofessur Theoretische Methoden des Projektmanagements der Bauhaus-Universität Weimar einen ganztägigen Workshop mit dem Titel: „Auf dem Weg zum digitalen (Bau-)haus-Bau“. Damit sollte die im Herbst 2007 an der Universität Kassel unter dem Titel „Simulation in der Bauwirtschaft“ begonnene Reihe von Workshops eine Fortsetzung finden. Der Schwerpunkt wurde dieses Mal auf die Simulation von Bauprozessen gesetzt – Simulation mit dem Ziel, Arbeitsvorbereitung, Bauausführung und Baustellencontrolling digital zu unterstützen.
The Bauhaus Summer School series provides an international forum for an exchange of methods and skills related to the interaction between different disciplines of modern engineering science.
The 2012 civil engineering course was held in August over two weeks at Bauhaus-Universität Weimar. The overall aim was the exchange
of research and modern scientific approaches in the field of model validation and simulation between well-known experts acting as lecturers
and active students. Besides these educational intentions the social and cultural component of the meeting has been in the focus. 48 graduate and doctoral students from 20 different countries and 22 lecturers from 12 countries attended this summer school. Among
other aspects, this activity can be considered successful as it raised the
sensitivity towards both the significance of research in civil engineering
and the role of intercultural exchange.
This volume summarizes and publishes some of the results: abstracts
of key note papers presented by the experts and selected student
research works. The overview reflects the quality of this summer school.
Furthermore the individual contributions confirm that for active students
this event has been a research forum and a special opportunity
to learn from the experiences of the researchers in terms of methodology
and strategies for research implementation in their current work.
The 19th International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering will be held at the Bauhaus University Weimar from 4th till 6th July 2012. Architects, computer scientists, mathematicians, and engineers from all over the world will meet in Weimar for an interdisciplinary exchange of experiences, to report on their results in research, development and practice and to discuss. The conference covers a broad range of research areas: numerical analysis, function theoretic methods, partial differential equations, continuum mechanics, engineering applications, coupled problems, computer sciences, and related topics. Several plenary lectures in aforementioned areas will take place during the conference.
We invite architects, engineers, designers, computer scientists, mathematicians, planners, project managers, and software developers from business, science and research to participate in the conference!
The 20th International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering will be held at the Bauhaus University Weimar from 20th till 22nd July 2015. Architects, computer scientists, mathematicians, and engineers from all over the world will meet in Weimar for an interdisciplinary exchange of experiences, to report on their results in research, development and practice and to discuss. The conference covers a broad range of research areas: numerical analysis, function theoretic methods, partial differential equations, continuum mechanics, engineering applications, coupled problems, computer sciences, and related topics. Several plenary lectures in aforementioned areas will take place during the conference.
We invite architects, engineers, designers, computer scientists, mathematicians, planners, project managers, and software developers from business, science and research to participate in the conference!
Beiträge zur 2. Fachtagung „Sicherheit auf Baustellen“ am Dienstag, dem 20. März 2001 in Weimar an der Fakultät Bauingenieurwesen, Professur Baubetrieb und Bauverfahren der Bauhaus-Universität Weimar. Der Tagungsband enthält einen Spezialteil „Qualität und Sicherheit auf Baustellen und im Schweißbetrieb“ anlässlich des Ausscheidens von Herrn Prof. Dr.-Ing. habil. Karl-Dieter Röbenack aus dem aktiven Berufsleben.
Hochschulwege 2015
(2017)
Die in diesem Tagungsband zusammengeführten Beiträge beschäftigen sich mit dem Spannungsfeld, das sich zwischen externen Förderprogrammen, Veränderungsprojekten und den Zielen, Strukturen und Bedingungen der jeweiligen Hochschule ergibt. In diesem Spannungsfeld kommt es unweigerlich zu Reibungen, da vorhandene Strukturen und Ziele in Konflikt mit neuen Vorhaben und Ideen geraten. Ein Teil der Projekte stellt allein durch ihr finanzielles Volumen und die daraus resultierende Wirkkraft die tradierten Verhältnisse zwischen Lehre, Forschung und den wissenschaftsstützenden Bereichen in Frage und teils auf den Kopf. Die leitenden Fragen der Tagung und der hier versammelten Beiträge waren daher: Wie bringen Hochschulen ihre individuellen Ziele mit denen der bundesweiten Programme oder länderspezfifischer Fördermaßnahmen überein? Wie gehen Hochschulen mit ihren Projekten um? Wie vollzieht sich Veränderung an den Hochschulen? Und schließlich: Was bleibt von den Impulsen, die Projekte setzen? Die in diesem Tagungsband versammelten Beiträge geben darauf erste, auf dem bisherigen Erfahrungswissen basierende Antworten. Sie setzen sich intensiv mit den Faktoren auseinander, die den Erfolg von Veränderungsprozessen und Projekten befördern oder behindern können und leiten daraus Empfehlungen für Gestaltungsprozesse an Hochschulen ab.
Long-span cable supported bridges are prone to aerodynamic instabilities caused by wind and this phenomenon is usually a major design criterion. If the wind speed exceeds the critical flutter speed of the bridge, this constitutes an Ultimate Limit State. The prediction of the flutter boundary therefore requires accurate and robust models. This paper aims at studying various combinations of models to predict the flutter phenomenon.
Since flutter is a coupling of aerodynamic forcing with a structural dynamics problem, different types and classes of models can be combined to study the interaction. Here, both numerical approaches and analytical models are utilised and coupled in different ways to assess the prediction quality of the hybrid model. Models for aerodynamic forces employed are the analytical Theodorsen expressions for the motion-enduced aerodynamic forces of a flat plate and Scanlan derivatives as a Meta model. Further, Computational Fluid Dynamics (CFD) simulations using the Vortex Particle Method (VPM) were used to cover numerical models.
The structural representations were dimensionally reduced to two degree of freedom section models calibrated from global models as well as a fully three-dimensional Finite Element (FE) model. A two degree of freedom system was analysed analytically as well as numerically.
Generally, all models were able to predict the flutter phenomenon and relatively close agreement was found for the particular bridge. In conclusion, the model choice for a given practical analysis scenario will be discussed in the context of the analysis findings.
The design of engineering structures takes place today and in the past on the basis of static calculations. The consideration of uncertainties in the model quality becomes more and more important with the development of new construction methods and design requirements. In addition to the traditional forced-based approaches, experiences and observations about the deformation behavior of components and the overall structure under different exposure conditions allow the introduction of novel detection and evaluation criteria.
The proceedings at hand are the result from the Bauhaus Summer School Course: Forecast Engineering held at the Bauhaus-Universität Weimar, 2017. It summarizes the results of the conducted project work, provides the abstracts of the contributions by the participants, as well as impressions from the accompanying programme and organized cultural activities.
The special character of this course is in the combination of basic disciplines of structural engineering with applied research projects in the areas of steel and reinforced concrete structures, earthquake and wind engineering as well as informatics and linking them to mathematical methods and modern tools of visualization. Its innovative character results from the ambitious engineering tasks and advanced
modeling demands.
Institute of Structural Engineering, Institute of Structural Mechanics, as well as Institute for Computing, Mathematics and Physics in Civil Engineering at the faculty of civil engineering at the Bauhaus-Universität Weimar presented special topics of structural engineering to highlight the broad spectrum of civil engineering in the field of modeling and simulation.
The summer course sought to impart knowledge and to combine research with a practical context, through a challenging and demanding series of lectures, seminars and project work. Participating students were enabled to deal with advanced methods and its practical application.
The extraordinary format of the interdisciplinary summer school offers the opportunity to study advanced developments of numerical methods and sophisticated modelling techniques in different disciplines of civil engineering for foreign and domestic students, which go far beyond traditional graduate courses.
The proceedings at hand are the result from the Bauhaus Summer School course: Forecast Engineering held at the Bauhaus-Universität Weimar, 2018. It summarizes the results of the conducted project work, provides the abstracts/papers of the contributions by the participants, as well as impressions from the accompanying programme and organized cultural activities.
In the superelliptic shell joined to a circular cylinder bending stresses are absent when it is subjected to uniform pressure.Some geometrical characteristics have been found. Expressions for determining stresses in the shell crest(in the singular point of plane type) are suggested. The problem of a theoretical critical buckling load of an elongated shell supported by frames is studied. A critical buckling load for two shells with different specifications was found experimentally.
A method of automatic maintenance of vibration amplitude of a number of mechanisms at given level, when exiting force amplitude is varied greatly is given. For this purpose a pendulum is attached to a mechanism through a viscoelastic hinge. Load of a pendulum can move along an arm and it is viscoelastic connected to it.
Fuzzy functions are suitable to deal with uncertainties and fuzziness in a closed form maintaining the informational content. This paper tries to understand, elaborate, and explain the problem of interpolating crisp and fuzzy data using continuous fuzzy valued functions. Two main issues are addressed here. The first covers how the fuzziness, induced by the reduction and deficit of information i.e. the discontinuity of the interpolated points, can be evaluated considering the used interpolation method and the density of the data. The second issue deals with the need to differentiate between impreciseness and hence fuzziness only in the interpolated quantity, impreciseness only in the location of the interpolated points and impreciseness in both the quantity and the location. In this paper, a brief background of the concept of fuzzy numbers and of fuzzy functions is presented. The numerical side of computing with fuzzy numbers is concisely demonstrated. The problem of fuzzy polynomial interpolation, the interpolation on meshes and mesh free fuzzy interpolation is investigated. The integration of the previously noted uncertainty into a coherent fuzzy valued function is discussed. Several sets of artificial and original measured data are used to examine the mentioned fuzzy interpolations.
This paper concerns schedule synchronization problems in public transit networks. In particular, it consists of three main parts. In the first the subject area is introduced, the terms are defined and framework for optimal synchronization in the form of problem representation and formulation is proposed. The second part is devoted to transfer synchronization problem when passengers changing transit lines at transfer points. The intergrated Tabu Search and Genetic solution method is developed with respect to this specific problem. The third part deals with headways harmonization problem i.e. synchronization of different transit lines schedules on a common segments of routes. For the solution of this problem a new bilevel optimization method is proposed with zones harmonization at the bottom level and co-ordination of zones, by time buffers assigned to timing points, at the upper level. Finally, the synchronization problems are numerically illustrated by real-life examples of the public transport lines in Cracow.