Refine
Document Type
- Conference Proceeding (83) (remove)
Institute
Keywords
- 1999 (19)
- Bauhaus-Kolloquium (19)
- Weimar (19)
- Architektur (13)
- Globalisierung (11)
- Finite-Elemente-Methode (8)
- Baubetriebslehre (7)
- Modellierung (7)
- CAD (6)
- Baustelle (5)
- Planung (4)
- Tragwerk (4)
- Bauaufnahme (3)
- Bauwesen (3)
- Dynamische Belastung (3)
- Informationsmanagement (3)
- Management (3)
- Algorithmus (2)
- Architekturtheorie (2)
- Bauplanung (2)
- Bedarfsermittlung (2)
- Bruchmechanik (2)
- Datenaustausch (2)
- Dünnwandiges Bauelement (2)
- Elastoplastizität (2)
- Freizeitindustrie (2)
- Grenzzustand (2)
- Informationstechnik (2)
- Internet (2)
- Kontinuum (2)
- Landschaftsgebundenes Bauen (2)
- Mathematisches Modell (2)
- Optimierung (2)
- Petri-Netz (2)
- Prognose (2)
- Prozessfähigkeit <Qualitätsmanagement> (2)
- Prozessoptimierung (2)
- Qualität (2)
- Schale (2)
- Stadt (2)
- Stahlbeton (2)
- Stahlkonstruktion (2)
- Transportables Gerät (2)
- Wahrscheinlichkeitsrechnung (2)
- ANSYS (1)
- Ablaufplanung (1)
- Amplitude (1)
- Apartheid (1)
- Arbeitsschutz (1)
- Aussteifung (1)
- Automatisiertes System (1)
- Bauablauf (1)
- Bauablauf / Ablaufplanung (1)
- Baubetrieb (1)
- Baudenkmal (1)
- Baugrund (1)
- Bauphysik (1)
- Bauschaden (1)
- Baustatik (1)
- Baustelleneinrichtung (1)
- Baustoff (1)
- Bautechnik (1)
- Bauwerk (1)
- Begrüßung (1)
- Berechnung (1)
- Berlin (1)
- Berührungslose Messung (1)
- Beton (1)
- Betonbrücke (1)
- Bewertung (1)
- Bildverarbeitung (1)
- Boden-Bauwerk-Wechselwirkung (1)
- Brückenbau (1)
- CAD / Architektur (1)
- CAE (1)
- Controlling (1)
- Dateneingabegerät (1)
- Datenerfassung (1)
- Datenverwaltung (1)
- Deutschland / Baustellenverordnung (1)
- Dialogprogrammierung (1)
- Dienstleistung (1)
- Diskrete Fourier-Transformation (1)
- Dreidimensionales Modell (1)
- Eigenwert (1)
- Eigenwertproblem (1)
- Einfamilienhaus (1)
- Eisenbahnbau (1)
- Eisenbahnbrücke (1)
- Elastizitätstheorie (1)
- Energiemanagement (1)
- Entscheidung bei mehrfacher Zielsetzung (1)
- Entscheidungstheorie (1)
- Erdbebenbelastung (1)
- Erdbebenschutz (1)
- Erlebnis (1)
- Europa (1)
- Finite-Streifen-Methode (1)
- Flüssigkeit-Bauwerk-Wechselwirkung (1)
- Freivorbau (1)
- Fuzzy-Optimierung (1)
- Gebäude (1)
- Gefängnisbau (1)
- Genetischer Algorithmus (1)
- Geographic Information System (1)
- Gesamtbauwerk (1)
- Gleichgewicht (1)
- Großtafelbau (1)
- Himmelslichtquotient (1)
- Informatik (1)
- Informationssystem (1)
- Ingenieurbüro (1)
- Iteration (1)
- Klein- und mittelstädtisches Unternehmen (1)
- Kommunikationstechnik (1)
- Kraftmethode (1)
- Kultur (1)
- Kulturindustrie (1)
- Kulturwirtschaft (1)
- Lehrter Bahnhof (1)
- Marketing (1)
- Markoffsche Kette (1)
- Matrizenrechnung (1)
- Mauerwerk (1)
- Mechanische Eigenschaft (1)
- Mensch-Maschine-Kommunikation (1)
- Metall verarbeitende Industrie (1)
- Neue Medien (1)
- Nichtlineare Mechanik (1)
- Nichtlineares System (1)
- Niederlande (1)
- Numerisches Verfahren (1)
- Objektmodell (1)
- Plastische Deformation (1)
- Plastizitätstheorie (1)
- Platte (1)
- Produktionsplanung (1)
- Projektierungsbetrieb (1)
- Prozesssimulation (1)
- Prozesssteuerung (1)
- Rahmentragwerk (1)
- Randelemente-Methode (1)
- Randspannung (1)
- Raumordnung (1)
- Raumtragwerk (1)
- Rechteck (1)
- Regenwasser (1)
- Reparatur (1)
- Revitalisierung (1)
- SDOF (1)
- Sandwichbauteil (1)
- Schalung (1)
- Schwingung (1)
- Schwingungsdämpfer (1)
- Sicherheit (1)
- Softwareengineering (1)
- Sonnenscheindauer (1)
- Sonnenstrahlung (1)
- Spannungsintensitätsfaktor (1)
- Stabilisierung (1)
- Stadtentwässerung (1)
- Stadtplanung (1)
- Stadtsoziologie (1)
- Stahlbau (1)
- Stahlbetonbauteil (1)
- Statische Last (1)
- Stochastisches Modell (1)
- Supply Chain Management (1)
- Südafrika <Staat> (1)
- Tragverhalten (1)
- Transportproblem (1)
- Tunnelbau (1)
- Variantenvergleich (1)
- Verkehr (1)
- Verkehrsleitsystem (1)
- Verkehrsnetz (1)
- Verkehrsplanung (1)
- Vernetztes System (1)
- Versagen (1)
- Viskoelastisches Gelenk (1)
- Visualisierung (1)
- Volkskunst (1)
- Weimar / Bauhaus-Universität / Professur Baubetrieb und Bauverfahren (1)
- Windlast (1)
- Wohnungsbau (1)
- Zusammengesetzte Fließbedingung (1)
- Öffentlicher Raum (1)
- Überwachung (1)
Year of publication
- 2000 (83) (remove)
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.
Bauschäden im Wohn- und Gewerbebau – eine Thüringer Bestandsaufnahme und Ansätze zur Problemlösung
(2000)
Der Verfasser gibt einen Überblick über die aktuelle Bauschadensforschung an Wohn-, Gewerbe- und Industriebauten (Schadensanfälligkeit, zeitliche Verteilung von Bauschäden, Verteiliung der Verursachung und des Verschuldens, Schadensintensität in Abhängigkeit von den Vertragsstrukturen, Mängel- und Schadensbeseitigungskosten). Es werden Schlussfolgerungen auf notwendige Maßnahmen zur Reduzierung der Schadensintensität gezogen.
In Erstanwendung des Fernstraßenbauprivatfinanzierungsgesetzes wurde der Konzessionär in einer frühen Projektphase noch vor der Planfeststellung beauftragt. Nur hierdurch war es möglich, ein umfassendes, speziell auf die Technologie eines Ausführungsbetriebes zugeschnittenes Baustellenmanagement-Konzept als Basis für die Planfeststellung zu erarbeiten. Vorstellung des Vorhabens, Baumanagement-Konzept: Grobbauablaufplanung, Baustelleneinrichtung, Arbeitskräfteeinsatz, Bodenmanagement, Hauptbaustoffversorgung und Erdstofftransporte im öffentlichen Bauraum, Verkehrsumleitungskonzeption für den öffentlichen Verkehr entsprechend den Bauphasen.
Rectangular steel frames are considered and subjected to strong ground motion. Their behavior factor is numerically evaluated using nonlinear time history analysis and different ground acceleration records. The behavior factor is determined assuming severe collapse mechanism occurs throughout the time history. The system of equations is transformed into single equation end then the energy balance concept is applied. The expression for the behavior factor is derived and its application to four story two bays steel frame is illustrated and the corresponding results are discussed.
Big soft orange
(2000)
Wissenschaftliches Kolloquium vom 14. bis 16. Oktober 1999 in Weimar an der Bauhaus-Universität zum Thema: ‚global village - Perspektiven der Architektur'
COMPARISON OF SOME VARIANTS OF THE FINITE STRIP METHOD FOR ANALYSIS OF COMPLEX SHELL STRUCTURES
(2000)
The subject of this paper is to explore and evaluate the semi-analytical, analytical and numerical versions of the finite strip method (FSM) for static, dynamic and stability analyses of complex thin-walled structures. Many of bridge superstructures, some roof and floor structures, reservoirs, channels, tunnels, subways, layered shells and plates etc. can be analysed by this method. In both semi-analytical and analytical variants beam eigenvalue vibration or stability functions, orthogonal polynomials, products of these functions are used as longitudinal functions of the unknowns. In the numerical FSM spline longitudinal displacement functions are implemented. In the semi-analytical and numerical FSM conventional transverse shape functions for displacements are used. In the analytical FSM the accurate function of the strip normal displacement and the plane stress function are applied. These three basic variants of the FSM are compared in quality and quantity in view to the following: basic ideas, modelling, unknowns, DOF, a kind and order of the strips, longitudinal and transverse displacement and stress functions, compatibility requirements, boundary conditions, ways for obtaining of the strip stiffness and load matrices, a kind and size of the structure stiffness matrix and its band width, mesh density, necessary number of terms in length, accuracy and convergence of the stresses and displacements, approaches for refining results, input and output data, computer resources used, application area, closeness to other methods, options for future development. Numerical example is presented. Advantages and shortcomings are pointed. Conclusions are given.
DETERMINATION OF THE DYNAMIC STRESS INTENSITY FACTOR USING ADVANCED ENERGY RELEASE EVALUATION
(2000)
In this study a simple effective procedure practically based upon the FEM for determination of the dynamic stress intensity factor (DSIF) depending on the input frequency and using an advanced strain energy release evaluation by the simultaneous release of a set of fictitious nodal spring links near the crack tip is developed and applied. The DSIF is expressed in terms of the released energy per unit crack length. The formulations of the linear fracture mechanics are accepted. This technique is theoretically based upon the eigenvalue problem for assessment of the spring stiffnesses and on the modal decomposition of the crack shape. The inertial effects are included into the released energy. A linear elastic material, time-dependent loading of sine type and steady state response of the structure are assumed. The procedure allows the opening, sliding and mixed modes of the structure fracture to be studied. This rational and powerful technique requires a mesh refinement near the crack tip. A numerical test example of a square notched steel plate under tension is given. Opening mode of fracture is studied only. The DSIF is calculated using a coarse mesh and a single node release for the released energy computation as well a fine mesh and simultaneous release of four links for more accurate values. The results are analyzed. Comparisons with the known exact results from a static loading are presented. Conclusions are derived. The values of the DSIF are significantly larger than the values of the corresponding static SIF. Significant peaks of the DSIF are observed near the natural frequences. This approach is general, practicable, reliable and versatile.
Seismic insulation is one of the most progressive types of seismic protection. Seismic insulation is understood as applying special devices for reducing of inertial seismic loads acting on a building. The constructions, shown in article, significantly more effectively solve problems of seismic protection, comparing to the existing seismic insulation systems (SIS). The Special Mechanical Engineering Design Office has developed, manufactured and tested a shock-absorber unit (SAU) of large load capacity. The SAU represents a block of number of pneumatic shock-absorbers (PSA), concentrically mounted round the guiding cylinder. The protected object rests upon the upper movable part of the guiding cylinder of the SAU. In its turn, the lower part of the SAU is rested on the foundation plate, mounted on the ground. A set of the SAU is a constructive realization of the SIS. Efficiency of such SIS has been proved as theoretically, so experimentally An effective SIS can also be created on the base of the elasto-plastic shock-absorbers developed by the KBSM. New designing and constructional solutions are based on the use of the original SIS elements, performed on the base of long time existing (in the other field of technical equipment)units, safety and durability of which have been proved by long term service (more than 20 years).