Refine
Document Type
- Conference Proceeding (51)
- Article (41)
- Doctoral Thesis (23)
- Master's Thesis (3)
- Bachelor Thesis (2)
- Periodical (2)
- Report (2)
- Book (1)
Institute
- Institut für Strukturmechanik (ISM) (40)
- In Zusammenarbeit mit der Bauhaus-Universität Weimar (18)
- Professur Angewandte Mathematik (9)
- Bauhaus-Institut für Geschichte und Theorie der Architektur und Planung (8)
- Professur Stochastik und Optimierung (7)
- F. A. Finger-Institut für Baustoffkunde (FIB) (6)
- Junior-Professur Computational Architecture (6)
- Institut für Europäische Urbanistik (5)
- Graduiertenkolleg 1462 (4)
- Professur Informatik im Bauwesen (4)
- Institut für Konstruktiven Ingenieurbau (IKI) (3)
- Professur Baubetrieb und Bauverfahren (3)
- Professur Denkmalpflege und Baugeschichte (3)
- An-Institute (2)
- Juniorprofessur Urban Energy Systems (2)
- Produktdesign (2)
- Professur Computer Vision in Engineering (2)
- Freie Kunst (1)
- Geschichte und Theorie des Design (1)
- Professur Baustatik und Bauteilfestigkeit (1)
- Professur Betriebswirtschaftslehre im Bauwesen (1)
- Professur Geschichte und Theorie der Kulturtechniken (1)
- Professur Holz- und Mauerwerksbau (1)
- Professur Mediensicherheit (1)
- Professur Modellierung und Simulation - Konstruktion (1)
- Professur Raumplanung und Raumforschung (1)
- Professur Sozialwissenschaftliche Stadtforschung (1)
- Professur Systeme der Virtuellen Realität (1)
- Visuelle Kommunikation (1)
- Weiterbildender Studiengang Wasser und Umwelt (1)
- bauhaus.institut für experimentelle Architektur (1)
Keywords
- Angewandte Mathematik (65)
- Building Information Modeling (36)
- Angewandte Informatik (35)
- Computerunterstütztes Verfahren (35)
- Data, information and knowledge modeling in civil engineering; Function theoretic methods and PDE in engineering sciences; Mathematical methods for (robotics and) computer vision; Numerical modeling in engineering; Optimization in engineering applications (34)
- Strukturmechanik (31)
- Architektur (9)
- Städtebau (7)
- Stochastik (5)
- Architecture (2)
- Beton (2)
- Cement (2)
- Finite-Elemente-Methode (2)
- Informatik (2)
- Kulturwissenschaft (2)
- Luci (2)
- Manifest (2)
- Manifesto (2)
- Medienwissenschaft (2)
- Rezeption (2)
- Rezeptionssteuerung (2)
- Stadtplanung (2)
- Zement (2)
- architecture (2)
- distributed computing (2)
- middleware (2)
- Abwasserleitung (1)
- Actor-Network-Theory (1)
- Aerodynamic (1)
- Agrarprodukt (1)
- Akteur-Netzwerk-Theorie (1)
- Alkali silica reaction (1)
- Alkali-Kieselsäure-Reaktion (1)
- Alkalisilikat (1)
- Alkalislikat (1)
- Anthropologie (1)
- António de Oliveira Salazar (1)
- Apparatgeist-Theorie (1)
- Arbeitsrecht (1)
- Architectual lighting (1)
- Architektur der Moderne (1)
- Architekturgeschichte (1)
- Ausstellung (1)
- Ausstellungstheorie (1)
- BIM; Building Information Modeling; site management; construction site. (1)
- Bauphysik (1)
- Baustelle (1)
- Bauteil (1)
- Beleuchtung (1)
- Beschichtung (1)
- Betonstraße (1)
- Bindemittel (1)
- Bodengestaltung (1)
- Bornitrid (1)
- Brasilia (1)
- Brasilien (1)
- Brazil; collective; residences; families; neighbourhoods; new middle class; private; self-production; space; urban (1)
- CAAD (1)
- CAD (1)
- CFRP (1)
- Complexation (1)
- Computer (1)
- Conservation (1)
- DLVO-Theorie (1)
- Data, information and knowledge modeling in civil engineering (1)
- Dauerhaftigkeit (1)
- Design synthesis (1)
- Designgeschichte (1)
- Dictatorship (1)
- Duarte Pacheco (1)
- Eigenform (1)
- Encosta Da Ajuda/Restelo (1)
- Energieeinsparung (1)
- Europe (1)
- Evolutionary algorithm (1)
- Facility Management (1)
- Faltung (1)
- Faria Da Costa (1)
- Fascism (1)
- Fly ash (1)
- Fläche (1)
- Flächenallokation (1)
- Flächenmanagement (1)
- Flächenoptimierung (1)
- Flächensteuerung (1)
- Flächensteuerungsmodell (1)
- Flächenverteilung (1)
- Function theoretic methods and PDE in engineering sciences (1)
- GaBi Software (1)
- Gasverteilungsnetz (1)
- Gebäude (1)
- Gemeinschaftsgarten (1)
- Geographie (1)
- Gustavo Giovannoni (1)
- Hochschule (1)
- Holzbau (1)
- Homogenization (1)
- Hydration and microstructure (1)
- Individual Sociology (1)
- Information Visualization (1)
- Instandsetzung (1)
- Internal pozzolanic reactivity (1)
- Istanbul (1)
- Italy, Rome (1)
- Joseph Stübben (1)
- Kohlenstoff (1)
- Kohlenstofffaserverstärkter Kunststoff (1)
- Konservierung (1)
- Konstruktion (1)
- Kryptologie (1)
- Kultur (1)
- Kulturaustausch (1)
- Kulturerbe (1)
- Laser Scanner (1)
- Leichtbau (1)
- Leiharbeit (1)
- Limestone powder (1)
- Macro-mesoporous structure (1)
- Marcello Piacentini (1)
- Massendaten (1)
- Material (1)
- Materialität (1)
- Materialversagen (1)
- Mathematical methods for (robotics and) computer vision (1)
- Mathematik (1)
- Medien (1)
- Mittelstand (1)
- Mix design method (1)
- Multi-criteria (1)
- Multi-objective Evolutionary Optimization, Elitist Non- Dominated Sorting Evolution Strategy (ENSES), Sandwich Structure, Pareto-Optimal Solutions, Evolutionary Algorithm (1)
- Multiscale modeling (1)
- Nanocomposite materials (1)
- Nanoverbundstruktur (1)
- Nanowissenschaften (1)
- Numerical modeling in engineering (1)
- Nutzungsgrad (1)
- Optimierung (1)
- Optimization (1)
- Optimization in engineering applications (1)
- Outsourcing (1)
- Papierware (1)
- Particle size distribution (1)
- Perkolationstheorie (1)
- Plagiarism Visualization (1)
- Platte (1)
- Polymere (1)
- Preferential Choice (1)
- Product Search (1)
- Produktgestaltung (1)
- Radioastronomie (1)
- ReCiPe (1)
- Reception (1)
- Reparatur (1)
- Retardation (1)
- Rheological property (1)
- Rice husk ash (1)
- Rohrleitungsbau (1)
- Rohrnetz (1)
- Ruine (1)
- Sandwichbauteil (1)
- Sanierung (1)
- Schall (1)
- School Institution (1)
- Schwingung (1)
- Second World War (1)
- Seidenstraße (1)
- Self-compacting high performance concrete (1)
- Sensitivitätsanalyse (1)
- Setting agent (1)
- Silikat (1)
- Silikatbeschichtung (1)
- Simulation (1)
- Slag (1)
- Smartphone (1)
- Socio-spatiality (1)
- Socio-urban Exclusion (1)
- Spaziergang (1)
- Sprayed concrete (1)
- Spritzbeton (1)
- Spritzzement (1)
- Stadtgestaltung (1)
- Stadtsoziologie (1)
- Stahlbau (1)
- Stochastic analysis (1)
- Sulfatträger (1)
- Superplasticizer (1)
- Supplementary cementitious materials (1)
- Text-based Visualization (1)
- Tragendes Teil (1)
- Tricalcium silicate (1)
- Umbau (1)
- Umwandlung (1)
- Umweltbelastungspunkte (1)
- Umweltbilanz (1)
- Universität (1)
- Urban Heritage (1)
- Urban Social Movements (1)
- Urban Sociology (1)
- Urbanism (1)
- Urbanität (1)
- Verbund (1)
- Verbundwerkstoff (1)
- Versorgungsleitung (1)
- Vibrometer (1)
- Virtuelle Realität (1)
- Visualisierung (1)
- Vorspannung (1)
- Wasserglas (1)
- Wasserrohrnetz (1)
- Wellpappe (1)
- Werkstoffkunde (1)
- Wohnen (1)
- Wohnsitz (1)
- Wohnung (1)
- Wärmeleitfähigkeit (1)
- Xiyü-Kultur (1)
- Zementart (1)
- aerodynamic (1)
- affordance (1)
- alternative spaces (1)
- architecture, urbanism, dictatorship, Lisbon, Faria da Costa (1)
- asiatische Kultur (1)
- associative space (1)
- authenticated encryption (1)
- bridge (1)
- city extension (1)
- civic center (1)
- civic design (1)
- communal space (1)
- community gardens (1)
- composite (1)
- cplan (1)
- development (1)
- dictatorial design (1)
- dictatorship (1)
- discourse analysis (1)
- economic houses program (1)
- elasticity (1)
- external pozzolanic reactivity (1)
- facility management (1)
- gated community (1)
- geometry (1)
- harmonic (1)
- hash functions (1)
- higher education (1)
- housing typologies (1)
- human touch (1)
- inclusive design (1)
- industrialization (1)
- isogeometric methods (1)
- living heritage site (1)
- material (1)
- material failure (1)
- mathematics (1)
- media anthropology, anthropomediality, anthropological knowledge, museum exhibitions, diorama, relationality (1)
- multiscale (1)
- nanocomposite (1)
- password scrambler (1)
- pavement (1)
- policy objectives (1)
- political intention (1)
- politische Repräsentation (1)
- preservation (1)
- prestress (1)
- provable security (1)
- quaternion (1)
- reception (1)
- regional planning (1)
- reinforcement (1)
- rural (1)
- school of architecture (1)
- scientific visualization, virtual environments, Big Data, radio astronomy (1)
- social housing (1)
- social network analysis (1)
- space (1)
- space allocation (1)
- space management (1)
- space management model (1)
- space optimization (1)
- stochastic (1)
- structure (1)
- symbolische Bildwelt (1)
- symmetric crypto (1)
- territorial policies (1)
- the bottom-up approach to urban planning (1)
- timber structure (1)
- town planning (1)
- transition (1)
- tuned mass damper (1)
- university (1)
- urban agriculture (1)
- urban beekeeping (1)
- urban design (1)
- urban history, urban design, fascist period, sport city, Rome, Enrico Del Debbio (1)
- urban sociology (1)
- urban studies (1)
- westliche Kultur (1)
- wind (1)
- Étienne de Groër (1)
- Ökobilanz (1)
- Überhitzung (1)
Year of publication
- 2015 (125) (remove)
The aim of this study was to investigate the optimization of the strength development of quaternary cements with 50 % clinker by a variation of the particle size distribution of the components GGBFS, fly ash and limestone powder.
By balancing the overall PSD of the cement by using unprocessed fly ash and coarse limestone powder in combination with a very fine GGBFS, the water demand of the resulting quaternary cements remained unaltered, while the compressive strength of the cements was increased significantly after 7d, 28 and 56d. As can be expected, the quaternary cement with 30 wt.% of the fine slag exhibited a stronger strength increase (about 18 % after 28 d) than the cements with only 20 wt.% slag (about 10% after 28d).
The polymeric clay nanocomposites are a new class of materials of which recently have become the centre of attention due to their superior mechanical and physical properties. Several studies have been performed on the mechanical characterisation of these nanocomposites; however most of those studies have neglected the effect of the interfacial region between the clays and the matrix despite of its significant influence on the mechanical performance of the nanocomposites.
There are different analytical methods to calculate the overall elastic material properties of the composites. In this study we use the Mori-Tanaka method to determine the overall stiffness of the composites for simple inclusion geometries of cylinder and sphere. Furthermore, the effect of interphase layer on the overall properties of composites is calculated. Here, we intend to get ounds for the effective mechanical properties to compare with the analytical results. Hence, we use linear displacement boundary conditions (LD) and uniform traction boundary conditions (UT) accordingly. Finally, the analytical results are compared with numerical results and they are in a good agreement.
The next focus of this dissertation is a computational approach with a hierarchical multiscale method on the mesoscopic level. In other words, in this study we use the stochastic analysis and computational homogenization method to analyse the effect of thickness and stiffness of the interfacial region on the overall elastic properties of the clay/epoxy nanocomposites. The results show that the increase in interphase thickness, reduces the stiffness of the clay/epoxy naocomposites and this decrease becomes significant in higher clay contents. The results of the sensitivity analysis prove that the stiffness of the interphase layer has more significant effect on the final stiffness of nanocomposites. We also validate the results with the available experimental results from the literature which show good agreement.
Im Rahmen der Forschung an Bauteil- und Fügestellendämpfung wurden die Schwingungen der Bauteile bisher mit 1D-Laser-Vibrometern gemessen. Nun steht ein 3D-Laser-Scanner zur Verfügung. Diese Arbeit beschäftigt sich mit der Frage, ob mit dem 3D-Laser-Scanner bessere und weitere relevante Daten bei der Schwingungsmessung gewonnen werden können.
Aerodynamic Analysis of Slender Vertical Structure and Response Control with Tuned Mass Damper
(2015)
Analysis of vortex induced vibration has gained more interest in practical held of civil engineering. The phenomenon often occurs in long and slender vertical structure like high rise building, tower, chimney or bridge pylon, which resulting in unfavorable responses and might lead to the collapse of the structures. The phenomenon appears when frequency of vortex shedding produced in the wake area of body meet the natural frequency of the structure. Even though this phenomenon does not necessarily generate a divergent amplitude response, the structure still may fail due to fatigue damage.
To reduce the effect of vortex induced vibration, engineers widely use passive vibration response control system. In this case, the thesis studies the effect of tuned mass damper. The objective of this thesis is to simulate the effect of tuned mass damper in reducing unfavorable responses due to vortex induced vibration and initiated by numerical model validation with respect to wind tunnel test report. The reference structure that being used inside the thesis is Stonecutter Bridge, Hongkong.
A numerical solver for computational uid dynamics named VX ow which developed by Morgenthal [6] is utilized for wind and structure simulation. The comparison between numerical model and wind tunnel result shows 10% maximum tip displacement diference in the model of full erection freestanding tower. The tuned mass damper (TMD) model itself built separately in finite element software SOFiSTiK, and the efective damping obtained from this model then applied inside input modal data of VX ow simulation. A single TMD with mass ratio of TMD 0.5% to the mass of first bending frequency, the maximum tip displacement is measured to be average 67% reduced.
Considering construction limitation and robustness of TMD, the effects of multiple TMD inside a structure are also studied. An uncoupled procedure of applying aeroelastic loads obtained from VX
ow inside finite element software SOFiSTiK is also done to observe the optimum distribution and optimum mass ratio of multiple tuned mass damper. The rest of the properties of TMD are calculated with Den Hartog's formula. The results are as follows: peak displacement in the case of multiple TMD that distributed with polynomial spacing achieve 7.8% more reduction performance than
the one that distributed with equal spacing. Optimum mass of tuned mass damper achieved with ratio 1.25% mass of first bending frequency corresponds to across wind direction.