7.2 Ingenieurbau
Filtern
Dokumenttyp
- Vortrag (170)
- Beitrag zu einem Tagungsband (83)
- Zeitschriftenartikel (68)
- Posterpräsentation (10)
- Buchkapitel (4)
- Dissertation (4)
- Beitrag zu einem Sammelband (3)
- Sonstiges (2)
- Tagungsband (Herausgeberschaft für den kompletten Band) (1)
Sprache
- Englisch (260)
- Deutsch (84)
- Mehrsprachig (1)
Schlagworte
- Structural Health Monitoring (26)
- Ground vibration (20)
- Structural health monitoring (15)
- Fatigue (14)
- Brücken (11)
- Monitoring (11)
- Offshore (11)
- Offshore wind energy (11)
- Hammer impact (9)
- Impact (9)
- Train passage (9)
- Damage characterization (8)
- Model interpolation (8)
- Planar tomography (8)
- SHM (8)
- Structural systems (8)
- Vibration measurements (8)
- Building vibration (7)
- Damage detection (7)
- Deterioration (7)
- Layered soil (7)
- Reliability (7)
- Slab track (7)
- Soil-structure interaction (7)
- Train-induced ground vibration (7)
- Bahnerschütterungen (6)
- Compressive strength (6)
- Design methods (6)
- Grout (6)
- Inspection (6)
- Numerical modelling (6)
- Offshore wind turbines (6)
- Physical phenomenology (6)
- Pile foundations (6)
- Reinforced concrete structure (6)
- Datenmanagement (5)
- Environmental effects (5)
- Interface (5)
- Layered soils (5)
- Modalanalyse (5)
- Numeric simulation (5)
- Repair (5)
- Temperature rejection (5)
- Ultrasonic testing (5)
- Vibration (5)
- Windenergie (5)
- Bayesian updating (4)
- Container loading (4)
- Crack detection (4)
- Damage localization (4)
- Drop test (4)
- Erosion (4)
- Erschütterungen (4)
- Erschütterungsminderung (4)
- Excitation forces (4)
- Fault detection (4)
- Foundation load (4)
- Foundations (4)
- Gründungsstrukturen (4)
- High-strength concrete (4)
- Inspection planning (4)
- Mitigation (4)
- Offshore geomechanics (4)
- Probabilistic (4)
- Shell Buckling (4)
- Statistical tests (4)
- Steel structures (4)
- Subspace methods (4)
- Subspace-based method (4)
- Tunnel (4)
- Vehicle-track-soil interaction (4)
- Vibration measurement (4)
- Wind (4)
- Wind Energy (4)
- Ansys Autodyn (3)
- Attenuation (3)
- Axle impulses (3)
- BIM (3)
- Bauwerksüberwachung (3)
- Belastungsversuch (3)
- Box-Behnken (3)
- Bridge (3)
- Bridges (3)
- Brücke (3)
- Buckling (3)
- Compaction Grouting (3)
- Cracks (3)
- DUCON® (3)
- Deep foundations (3)
- Dispersionsmessung (3)
- Drucker-Prager (3)
- Ductility (3)
- E-modulus (3)
- Earth masonry (3)
- Elastische Gleiselemente (3)
- Emission (3)
- Erschütterungsprognose (3)
- Filter effects (3)
- Fly ash (3)
- Grouted connection (3)
- Grouting (3)
- Großer Fallturm Horstwalde (3)
- Irregular soil (3)
- Leichtbau (3)
- Linear parameter varying systems (3)
- Load vector (3)
- Maintenance (3)
- Material moisture (3)
- Metakaolin (3)
- Micro-reinforcement (3)
- Micromechanical modelling (3)
- Mobile elements (3)
- Model updating (3)
- Monopiles (3)
- Numerical modeling (3)
- Offshore Pile Foundation (3)
- Offshore Windenergieanlagen (3)
- Offshore foundations (3)
- Offshore wind turbine (3)
- Physical testing (3)
- Post-impact evaluation (3)
- Quasi-static and dynamic tests (3)
- Railway (3)
- Railway bridge (3)
- Randomly heterogeneous soil (3)
- Rehabilitation (3)
- Reinforced concrete (3)
- Risk (3)
- Scattering (3)
- Schwingungsdynamik (3)
- Soil erosion (3)
- Soil properties (3)
- Statistical evaluation (3)
- Statistical method (3)
- Stereo photogrammetry (3)
- Subspace-based residual (3)
- Temperature effects (3)
- Train speed (3)
- UHPC (3)
- Umwelteinflüsse (3)
- Vehicle-track interaction (3)
- Vibrations (3)
- Wellenausbreitung (3)
- Wellengeschwindigkeit (3)
- Zivile Sicherheit (3)
- 2-span bridge (2)
- AISTEC (2)
- Acceleration sensors (2)
- Achsfolgespektren (2)
- Acoustic emission testing (2)
- Amplitude-charge weight laws (2)
- Amplitude-distance laws (2)
- Analysis of variance (2)
- Apartment building (2)
- Artificial Intelligence (2)
- Artificial intelligence (2)
- Automatisierte schweißtechnische Fertigung (2)
- Axle sequence (2)
- Axle-sequence spectrum (2)
- Ballast track (2)
- Bauteile (2)
- Bauwerke (2)
- Bauwerksmonitoring (2)
- Bayes'sche Analyse (2)
- Bayesian System Identification (2)
- Bayesian analysis (2)
- Bayesian methods (2)
- Bayesian system identification (2)
- Bemessung (2)
- Big Data (2)
- Bitumen (2)
- Bodenübertragungsfunktion (2)
- Cable failure (2)
- Cable-stayed bridge (2)
- Changing process noise (2)
- Chemisoprtion (2)
- Climate chamber (2)
- Compressive Cyclic loading (2)
- Compressive cyclic loading (2)
- Computer Vision (2)
- Concrete (2)
- Coupled fluid-particle simulation (2)
- Coupler systems (2)
- Crack Luminescence (2)
- Crack formation (2)
- Crack pattern (2)
- Cyclic load (2)
- DEM (2)
- Damage identification (2)
- Design (2)
- Digital twin (2)
- Digitalisierung (2)
- Displacements (2)
- Drone (2)
- Earth block masonry (2)
- Elastische Elemente (2)
- Elastische Gebäudelagerung (2)
- Energy (2)
- Erschütterungsausbreitung (2)
- Evaluation (2)
- Explosion-induced ground vibrations (2)
- Faseroptik (2)
- Feuchte (2)
- Finite Elemente Simulation (2)
- Finite element models (2)
- Freight train (2)
- GPU parallel computation (2)
- Gaussian Process (2)
- Geotechnical site-characterization (2)
- Gleiströge (2)
- Ground vibration measurements (2)
- Grouted Connection (2)
- Halbraum (2)
- High-performance computing (2)
- High-speed (2)
- High-speed train (2)
- Immission (2)
- Injection Sequence (2)
- Irregular ballast (2)
- Irregularities (2)
- Jacket support structure (2)
- Jet erosion test (2)
- Klimakammer (2)
- Knudsen effect (2)
- LBM-DEM (2)
- Laboratory beam structure (2)
- Lehm (2)
- Long-term shrinkage (2)
- Luminescence (2)
- Macromechanical Sample Strength (2)
- Material tests (2)
- Mauerwerk (2)
- Measurement (2)
- Measurements (2)
- Messen im Bauwesen (2)
- Micro silica (2)
- Micromechanical Tensile Failure (2)
- Mix design (2)
- Modal Analysis (2)
- Moisture (2)
- Moisture content (2)
- Molecular diffusion (2)
- Non destructive testing (2)
- Non-Destructive Evaluation (2)
- Non-destructive testing (2)
- Numerical model (2)
- Office tower (2)
- Offshore Wind (2)
- Offshore Wind Energy (2)
- Offshore Windenergy Pile Buckling (2)
- Offshore geotechnics (2)
- Offshore wind (2)
- Offshore-Windenergieanlagen (2)
- Optimal Sensor Placement (2)
- Passenger train (2)
- Physisorption (2)
- Pile Foundation (2)
- Pile Tip Buckling (2)
- Prediction (2)
- Prediction of explosion induced ground and building vibration (2)
- Probability of Detection (2)
- Prädiktive Instandhaltung (2)
- Radar (2)
- Railway tunnel (2)
- Railways (2)
- Rechenmodelle (2)
- Reinforcement (2)
- Relative humidity (2)
- Repowering (2)
- Research data management (2)
- Residual evaluation (2)
- Resonance (2)
- Risslumineszenz (2)
- SDDLV (2)
- Safety (2)
- Scattered axle impulses (2)
- Schadensdetektion (2)
- Schwingungsbasierte Verfahren (2)
- Size effect (2)
- Slenderness effect (2)
- Soil-Structure-Interaction (2)
- Soil-pile interaction (2)
- Soil-wall-floor model (2)
- Static axle loads (2)
- Static load (2)
- Strength (2)
- Strukturmonitoring (2)
- Suction bucket (2)
- Supplementary cementitious materials (2)
- Surface-tunnel reduction (2)
- System Identification (2)
- System identification (2)
- Tensile Capacity (2)
- Time-variant reliability (2)
- Tomographic damage evaluation (2)
- Track damage (2)
- Track-soil interaction (2)
- Train excitation (2)
- Transmission (2)
- Uncertainty (2)
- Uncertainty in reference (2)
- Uncertainty quantification (2)
- Unterraummethoden (2)
- Value of Information (2)
- Vehicle–track interaction (2)
- Verkehrsinfrastukturen (2)
- Vollraum (2)
- Wellenausbreitung in der Tiefe (2)
- Wind Turbines (2)
- Wind energy (2)
- Wind turbine tower (2)
- Windenergieanlagen (2)
- Windenergy (2)
- Zuggeschwindigkeit (2)
- Zuverlässigkeit (2)
- 3D imaging (1)
- Achsimpulse (1)
- Acoustic emission (1)
- Acoustic emission analysis (1)
- Ambient excitation (1)
- Amplituden-Abstands-Gesetze (1)
- Analytical Design Methods (1)
- Asphalt (1)
- Assessment (1)
- Asymptotic local approach (1)
- Automated Modal Analysis for Tracking Structural Change during Construction and Operation Phases (1)
- Automated operational modal analysis (1)
- Automatic modal parameters identification (1)
- Automatisierte Fertigung (1)
- Automatisierte schweißtechniche Fertigung (1)
- Autonomous underwater vehicles (1)
- Axial load bearing (1)
- Axle loads (1)
- Axle pulses (1)
- BAM Windenergie Fügetechnik (1)
- Bahngleis (1)
- Base isolation (1)
- Baugrunddynamik (1)
- Bauwerk-Boden-Wechselwirkung (1)
- Bauwerksdiagnostik (1)
- Beanspruchungszustand (1)
- Belastungsfahrt (1)
- Belastungstest (1)
- Belastungszug (1)
- Benchmark (1)
- Beschleunigungssensoren (1)
- Beton (1)
- Betonautobahn (1)
- Betonautobahnen (1)
- Beulen (1)
- Bewertung (1)
- Bionik (1)
- Blast (1)
- Blast tests (1)
- Bodenschlitz (1)
- Bodenvariabilität (1)
- Boreholes (1)
- Boundary element (1)
- Boundary element method (1)
- Bridge monitoring (1)
- Bridge resonance (1)
- Bridge vibration (1)
- Bruchlastwechselzahlen (1)
- Brückensicherheit (1)
- Buckling piles circular shells (1)
- Buckling soil-structure-interaction offshore piles track (1)
- Building Information Modeling (1)
- Building and Construction (1)
- Building information modelling (1)
- Building response (1)
- Bulging (1)
- CFD (1)
- CPT (1)
- Cancellation (1)
- Cars (1)
- Cement-based composites (1)
- Cemented soil (1)
- Centerline solidification cracking (1)
- Chemisorption (1)
- Civil and Structural Engineering (1)
- Civil structures (1)
- Climate Chamber (1)
- Coating (1)
- Cohesive granular materials (1)
- Cohesive soils (1)
- Column/wall resonance (1)
- Combined finite-element boundary-element method (1)
- Compaction grouting (1)
- Compliance function (1)
- Components of excitation (1)
- Compression tests (1)
- Computational (1)
- Condensed Matter Physics (1)
- Conductor (1)
- Continuous soil (1)
- Continuously inhomogeneous geological media (1)
- Continuously inhomogeneous soils (1)
- Crack (1)
- Crack damage detection (1)
- Crack growth (1)
- Crack repair (1)
- Cyber security (1)
- Cyclic axial shearing (1)
- Cyclic degradation (1)
- DEM-LBM simulation (1)
- Damage Detection (1)
- Damage Identification (1)
- Damage evolution (1)
- Decision matrix analysis (1)
- Deckeneigenfrequenzen (1)
- Deckenschwingungen (1)
- Design models (1)
- Design practice (1)
- Detection (1)
- DiMoWind RDS-PP Maintenance Digital Twin Offshore Wind Energy (1)
- Digital Image Correlation (1)
- Digital Image Correlation (DIC) (1)
- Digital Models (1)
- Digital Twin (1)
- Digitale Zwillinge (1)
- Discrete Element Method (1)
- Discrete element method (1)
- Drop Test (1)
- Drop Tests (1)
- Drop tower (1)
- Druckfestigkeit (1)
- Druckschwellenversuch (1)
- Dynamic axle loads (1)
- Dynamic excitation (1)
- Dynamic loads (1)
- Dynamic soil properties (1)
- Dynamische Bodenkennwerte (1)
- Dynamische Bodensteifigkeit (1)
- Dämpfung (1)
- EERA Joint Program (1)
- Earth (1)
- Earth blocks (1)
- Earth material (1)
- Earthen hydraulic constructions (1)
- Earthen hydraulic infrastructures (1)
- Einflusslinie (1)
- Einflusslinien (1)
- Einfügungsdämmung (1)
- End-of-life decision making (1)
- Entscheidungsfindung (1)
- Environmental (1)
- Environmental Effects (1)
- Environmental and Operational Variability (1)
- Environmental changes (1)
- Environmental influence (1)
- Erhaltungsmanagement (1)
- Ermüdung (1)
- Ermüdungsprüfung (1)
- Ermüdungsschäden (1)
- Ermüdungsverhalten (1)
- Erneuerbare Energien (1)
- Erosion of cohesive soils (1)
- Erschütterungen im Fernfeld (1)
- Estimation (1)
- FEM (1)
- FEM analysis (1)
- Fahrzeug-Fahrweg-Boden-Wechselwirkung (1)
- Fallturm (1)
- Fatigue damage (1)
- Fatigue deterioration (1)
- Fatigue strength (1)
- Fault detectionchanging (1)
- Features (1)
- Fequency domain (1)
- Fiber optic sensing (1)
- Fibre optic sensors (1)
- Finite element (1)
- Finite element analysis (1)
- Finite element method (1)
- Finite element model updating (1)
- Finite elements (1)
- Finite-Elemente-Modellkalibrierung (1)
- Finite-element boundary-element method (1)
- Flexibility (1)
- Flexible car body (1)
- Flexible wheelset (1)
- Floor resonance (1)
- Floors (1)
- Fluid Dynamics (1)
- Fluid-structure interaction (1)
- Fluidized beds (1)
- Footbridge (1)
- Force reconstruction (1)
- Foundation Pile (1)
- Foundation reliability analysis (1)
- Freileitung (1)
- Frequency response function (1)
- GMNIA (1)
- GNSS (1)
- GPA (1)
- GPU Parallel computing (1)
- GPU parallelisation (1)
- Gebäudelagerung (1)
- Gebäudemodelle (1)
- Gebäudeschwingungen (1)
- Gekoppelte Fluid-Partikel Simulationen (1)
- General Materials Science (1)
- Geology (1)
- Geomechanics (1)
- Geomechanics of offshore foundations (1)
- Geometric vehicle and track irregularities (1)
- Geometrie (1)
- Global ambient vibrations (1)
- Granular Cohesive Materials (1)
- Granular Cohesive Materials, (1)
- Granular cohesion (1)
- Granular materials (1)
- Ground (1)
- Grout Injection (1)
- HAZID (1)
- HTLS (1)
- Hard impact (1)
- Harter Anprall an Stahlbetonstrukturen (1)
- High-Rise Building (1)
- High-rise building (1)
- High-rise buildings (1)
- Horizontal stress (1)
- Horizontal wind turbine (1)
- Hydraulic jet erosion (1)
- IEPE (1)
- Impact damage of reinforced concrete (1)
- Impact damage on reinforced concrete (1)
- Impact loading (1)
- Impakt (1)
- Impedanzmethode (1)
- Imperfektion (1)
- Impinging jet (1)
- Inclination angle (1)
- Inertial Interaction (1)
- Inertial interaction (1)
- Inhomogeneous soils (1)
- Innovative Messtechnik (1)
- Inspeciton (1)
- Inspektion (1)
- Instandhaltung (1)
- Interface model (1)
- Jet impingement (1)
- Kalibrierung (1)
- Kinematic Interaction (1)
- Kinematic interaction (1)
- Kraft auf den Boden (1)
- LBM-DEM coupling (1)
- LBM-DEM simulation (1)
- Laminar flow (1)
- Laminography (1)
- Large components (1)
- Laser beam welding (1)
- Lateral dynamic displacement (1)
- Lateral load bearing (1)
- Lattice Boltzmann Method (1)
- Lattice Boltzmann method (1)
- Leichtbauprinzipien (1)
- Lifetime Extension (1)
- Load Test (1)
- Load bearing behaviour (1)
- Load identification (1)
- Load tests (1)
- Load-bearing (1)
- Load-bearing behaviour (1)
- Local approaches (1)
- Long-span bridge (1)
- Low-frequency shaker (1)
- MEMS (1)
- Maintal Bridge Gemuenden (1)
- Maintalbrücke Gemünden (1)
- Maintenance Digital Twin Offshore Wind Energy (1)
- Marine geomechanics (1)
- Marine geotechnics (1)
- Maschinenbetrieb (1)
- Maschinenfundament (1)
- Material Point Method (1)
- Material Point Method (MPM) (1)
- Material model (1)
- Measurement campaigns (1)
- Mechanical challenges (1)
- Merkblatt (1)
- Messfahrt (1)
- Microfine Cement (1)
- Microfine cement (1)
- Micromechanical LBM-DEM simulation (1)
- Micromechanical analysis (1)
- Micromechanical simulation (1)
- Microsilica (1)
- Minderungsmaßnahmen (1)
- Mixed formulation (1)
- Modal analysis (1)
- Modal force spectrum (1)
- Modal load spectrum (1)
- Modal system identification (1)
- Model Building (1)
- Model Update (1)
- Model Updating (1)
- Model update (1)
- Modell-Update (1)
- Modellierung (1)
- Modes (1)
- Modes and waves (1)
- Modulus of elasticity (1)
- Monitoring-informed inspection and maintenance planning (1)
- Monopile (1)
- Monopile Buckling (1)
- Monopile installation risks (1)
- Movin load test (1)
- Multi-beam method (1)
- Multi-beam track model (1)
- Multiple impact (1)
- NDT (1)
- Nachgiebigkeiten (1)
- Nelson’s method (1)
- Normung (1)
- Numerical analysis (1)
- Numerical damage simulation (1)
- Numerical simulation (1)
- Numerical simulation of impact damage (1)
- Numerical simulations (1)
- Numerische Analysen (1)
- Obstacles (1)
- Offhore (1)
- Office building (1)
- Offshore Structures (1)
- Offshore Wind Energy Converter (1)
- Offshore Windenergie (1)
- Offshore pile foundation (1)
- Offshore pile foundations (1)
- Offshore steel structures (1)
- Offshore wind energy foundations (1)
- Offshore wind farm (1)
- Offshore wind farms (1)
- Offshore wind-turbine foundations (1)
- Offshore-Wind (1)
- Offshore-Windenergie (1)
- Offshore-Windkraftanlagen (1)
- Operational modal analysis (1)
- Optimal sensor placement (1)
- Optimierungsmethoden (1)
- Optimization techniques (1)
- Perfectly Matched Layer (PML) (1)
- Pfahlfußbeulen (1)
- Pfahlnachgiebigkeiten (1)
- Physisoprtion (1)
- Piaui state (1)
- Pile Buckling (1)
- Pile Capacity (1)
- Pile ageing (1)
- Pile bending stiffness (1)
- Pile foundation (1)
- Pile groups (1)
- Pile retrofit system (1)
- Pile-Tip-Buckling (1)
- Point Cloud (1)
- Predictive maintenance (1)
- Pressure (1)
- Probabilistic modelling (1)
- Probabilitische Ingenieurmodelle (1)
- Probability of detection (1)
- Probekörpergeometrien (1)
- Process noise (1)
- Prognose (1)
- Propagation from a tunnel (1)
- Quasi-static response; (1)
- Rail roughness (1)
- Railbridge (1)
- Railway induced vibration (1)
- Railway track (1)
- Railway tracks (1)
- Railway trafiic (1)
- Randelementmethode (1)
- Random dynamics and vibrations (1)
- Random stiffness variation (1)
- Rayleighwellendispersion (1)
- Rechenverfahren (1)
- Recovery experiments (1)
- Referenzbeispiel (1)
- Referenzkennzeichnungssystem (1)
- Remote sensing vibrometer (1)
- Residential building (1)
- Richtige Fahrzeugmasse (1)
- Richtlinie (1)
- Rigid vehicle model (1)
- Risiko (1)
- Risikoanalyse (1)
- Risk-based design (1)
- Risk-based maintenance planning (1)
- Rissprozes (1)
- Rissprozess (1)
- SHCC (1)
- SHM Environmental (1)
- SHM environmental bridges (1)
- Sandstone (1)
- Santa-marta (1)
- Scaling (1)
- Schadensüberwachung (1)
- Schallemission (1)
- Scherwellengeschwindigkeit (1)
- Schienenfahrweg (1)
- Schienenfahrwege (1)
- Schrauben (1)
- Schubmodul (1)
- Schwingungsmessungen (1)
- Schwingungsmonitoring (1)
- Schädigungsprozesse (1)
- Sensitivity vectors (1)
- Serra da cangalha (1)
- Shearing (1)
- Shell buckling (1)
- Shrinkage (1)
- Shrinkage Reducing Admixture (1)
- Sicherheit (1)
- Simple and fast prediction (1)
- Simple prediction (1)
- Simulation and experiment (1)
- Site-characterization (1)
- Soft impact (1)
- Soft track elements (1)
- Soil Struture Interaction (1)
- Soil classification (1)
- Soil forces (1)
- Soil stiffness (1)
- Soil-building interaction (1)
- Soil-building resonance (1)
- Soil-wall floor model (1)
- Soil-water-structure interaction (1)
- Sorption isotherm (1)
- Spannbeton (1)
- Spannstahlbruch (1)
- Spatially varying ground conditions (1)
- Spektralanalyse (1)
- Stability Buckling soil-structure-interaction piles offshore (1)
- Stabilität (1)
- State of stress (1)
- Static loading (1)
- Statistical correlations (1)
- Statistical pattern recognition (1)
- Statistische Auswertung (1)
- Statistische Korrelationen (1)
- Stiffness variation (1)
- Stochastic Subspace Damage Detection (1)
- Strain (1)
- Stress stiffening (1)
- Stress-strain relation (1)
- Stress–strain-relation (1)
- Structural Systems (1)
- Structural integrity (1)
- Structural integrity maintenance (1)
- Structural integrity management (1)
- Structural system identification (1)
- Störgrößen (1)
- Substructures (1)
- Suction Bucket (1)
- Superplasticizer (1)
- Supplementary Cementitious Materials (1)
- Support structures (1)
- Surface Foundation (1)
- Surface line (1)
- Sustainable binders (1)
- Switch (1)
- Systemidentifikation (1)
- TOP (1)
- TRC (1)
- Tagung (1)
- Temperature effect (1)
- Temperature effect rejection (1)
- Temperature modeling (1)
- Temperatureinflüsse (1)
- Tensile test (1)
- Test specification (1)
- Tip Buckling (1)
- Track and vehicle irregularities (1)
- Track beam (1)
- Track damage monitoring (1)
- Track damage quantification (1)
- Track deflection (1)
- Track displacements (1)
- Track filter (1)
- Track filtering (1)
- Track vibration (1)
- Tragfähigkeit (1)
- Tragstrukturen (1)
- Train configuration (1)
- Train passages (1)
- Train-induced vibration (1)
- Tran speed (1)
- Transfer fuction (1)
- Transfer function (1)
- Transverse butt weld (1)
- Trench (1)
- Truss structures (1)
- Tunnel line (1)
- Tunnel-pile transfer (1)
- Tunnel-to-surface reduction (1)
- Tunnelstrecke (1)
- Turnout (1)
- UAS (1)
- Un- certainty (1)
- Unbounded domain (1)
- Under-sleeper pads (1)
- Value of information (1)
- Variational Bayesian statistics (1)
- Varying soil stiffness (1)
- Varying stiffness (1)
- Varying track stiffness (1)
- Vibration analysis (1)
- Vibration excitation (1)
- Vibration monitoring (1)
- Viscosity (1)
- Vorspannung (1)
- Wahrscheinlichkeit (1)
- Water Science and Technology (1)
- Water-structure interaction (1)
- Wave propagation (1)
- Wave-Tower interaction (1)
- Wavenumber domain (1)
- Wavenumber integrals (1)
- Wavenumber method (1)
- Waves (1)
- Weld imperfections (1)
- Welded (1)
- Wellenfeldberechnung (1)
- Wheelset (1)
- Wheelset accelerations (1)
- Wind Energy Structures (1)
- Wind energy tower (1)
- Wind turbines (1)
- Wind-farm aerodynamics (1)
- Windenergieanlage (1)
- Windfarm wake analysis (1)
- Workability (1)
- Zerstreute Achsimpulse (1)
- acceleration sensors (1)
- building information modelling (1)
- calibration (1)
- elastische Gebäudelagerungen (1)
- environmental influences (1)
- fachwerkartige Stahltragwerken (1)
- layered soil (1)
- risk, reliability, inspection planning, offshore wind turbines (1)
- structural health monitoring (1)
- structural integrity management (1)
- support structures (1)
- temperature (1)
- transmission behavior (1)
- zerstreute Achslastimpulse (1)
- Übertragungsmatrizen (1)
- Übertragungsverhalten (1)
- Überwachung (1)
Organisationseinheit der BAM
- 7 Bauwerkssicherheit (345)
- 7.2 Ingenieurbau (345)
- 8 Zerstörungsfreie Prüfung (25)
- 7.4 Baustofftechnologie (23)
- 7.1 Baustoffe (13)
- 8.5 Röntgenbildgebung (8)
- 7.0 Abteilungsleitung und andere (6)
- 9 Komponentensicherheit (6)
- 3 Gefahrgutumschließungen; Energiespeicher (5)
- 3.3 Sicherheit von Transportbehältern (5)
Paper des Monats
- ja (5)
Classic non-destructive fatigue crack detection methods reveal the state of the fatigue damage evolution at the moment of application, generally not under operational conditions. The here introduced crack luminescence method realizes a clear visibility of the occurred and growing crack in loaded components during operation. Different established experiments show that due to the sensitive coating a crack Formation can be detected even in early stage under the premise the crack reached the surface. The coating consists of two layers with different properties and functions. The bottom layer emits light as fluorescence under UV radiation. The top layer covers the fluorescing one and prevents the emitting of light in case of no damage at the surface. In case of surface crack occurrence, the luminescent light is clearly noticeable by visual observations and also by standard camera equipment which makes automated crack detection possible as well. It is expected that crack luminescence can increase structural safety as well as reduce costs and time for inspections and preventive maintenance.
Kontinuierliche sensorbasierte Bauwerksmessungen leisten einen wichtigen Beitrag zur Sicherheit von Verkehrsbauwerken. Hierzu werden im Vorhaben AISTEC Referenzbauwerke und Referenzverfahren untersucht mit Schwerpunkt auf den Einfluss klimatischer Bedingungen. Der Vortrag stellt den aktuellen Projektstand des FB 7.2 vor.
Die gesamte Prognose wurde rechnerisch erfasst. Die Rechenverfahren sind einfach und schnell. Die Emission und die Immission verwendet Übertragungsmatrizen. Die Transmissionsrechnung beruht auf der Dispersion der Rayleighwelle. Die Verknüpfung erfolgt über die Anregungskraft auf den Boden und über die Freifeldamplitude am Gebäude.
Es sind viele Eingabemöglichkeiten für Messdaten vorgesehen. Messungen können von einem Ort auf einen anderen Ort übertragen werden.
This paper proposes a novel method to estimate the lateral displacement of high-rise structures under wind loads. The coefficient β(x) is firstly derived, reflecting the relation between the structural lateral dynamic displacement and the inclination angle at the height x of a structure. If the angle is small, it is the ratio between the structural fundamental mode shape and its first-order derivative without influence of external loads. Several dynamic experiments of structures are performed based on a laser remote sensing vibrometer and an inclinometer, which shows that the fundamental mode is dominated in the structural displacement response under different types of excitations. Once the coefficient β(x) is curve-fitted by measuring both the structural lateral dynamic displacement and the inclination angle synchronously, the real-time structural lateral displacement under operational conditions is estimated by multiplying the coefficient β(x) with the inclination angle. The advantage of the proposed method is that the coefficient β(x) can be identified by lateral dynamic displacement measured in high resolution by the remote sensing vibrometer, which is useful to reconstruct the displacement accurately by the inclination angle under operational conditions
The erosion of natural sediments by a superficial fluid flow is a generic situation in many usual geological or industrial contexts. However, there is still a lack of fundamental knowledge about erosional processes, especially concerning the role of internal cohesion and adhesive stresses on issues such as the critical flow conditions for the erosion onset or the kinetics of soil mass loss. This contribution investigates the influence of cohesion on the surface erosion by an impinging jet flow based on laboratory tests with artificially bonded granular materials. The model samples are made of spherical glass beads bonded either by solid bridges made of resin or by liquid bridges made of a highly viscous oil. To quantify the intergranular cohesion, the capillary forces of the liquid bridges are here estimated by measuring their main geometrical parameters with image-processing techniques and using well-known analytical expressions. For the solid bonds, the adhesive strength of the materials is estimated by direct measurement of the yield tensile forces and stresses at the particle and sample scales, respectively, with specific traction tests developed for this purpose. The proper erosion tests are then carried out in an optically adapted device that permits a direct visualization of the scouring process at the jet apex by means of the refractive index matching technique. On this basis, the article examines qualitatively the kinetics of the scour crater excavation for both scenarios, namely, for an intergranular cohesion induced by either liquid or solid bonds. From a quantitative perspective, the critical condition for the erosion onset is discussed specifically for the case of the solid bond cohesion. In this respect, we propose here a generalized form of the Shields criterion based on a common definition of a cohesion number from yield tensile values, derived at both micro- and macroscales. The article finally shows that the proposed form manages to reconcile the experimental data for cohesive and cohesionless materials, the latter in the form of the so-called Shields curve along with some previous results of the authors which have been appropriately revisited.
A strain-based automated operational modal analysis algorithm is proposed to track the long-term dynamic behavior of a horizontal wind turbine under operational conditions.
This algorithm is firstly validated by a scaled wind turbine model, and then it is applied to the dynamic strain responses recorded from a 5 MW wind turbine system. We observed variations in the fundamental frequency and 1f, 3f excitation frequencies due to the mass imbalance of the blades and aerodynamic excitation by the tower dam or tower wake. Inspection of the Campbell diagram revealed that the adverse resonance phenomenon and Sommerfeld effect causing excessive vibrations of the wind tower.
Eindimensionale Modelle des Gleises aus einem Schienenstützpunkt, zweidimensionale Modelle enthalten die Kraftverteilung der Schiene. Eindimensionale Modelle machen einen Fehler, weil sie eine zu große Fahrzeugmasse berücksichtigen. Man kann jedoch bei der Berechnung der Minderungswirkung von Gleiselementen eindimensionale Gleismodelle verwenden, um die Kraftübertragung des Gleises bzw. die Minderungswirkung des Gleises zu berechnen. Die Wechselwirkung mit dem Fahrzeug kann einfach mit der dynamischen Stützpunktsteifigkeit berechnet werden. Dabei muss die Stützpunktsteifigkeit mit einer charakteristischen Gleislänge multipliziert werden, die frequenz- und systemabhängig ist.
The train passages over intact or damaged slab tracks on different soils have been calculated by the finite-element boundary-element or the wavenumber-domain method. The influence of track and soil parameters on the distribution of the track displacements and the soil forces has been analysed. The measured and calculated displacement time histories of train passages could be used to identify track damages such as lose sleepers or a lose track plate. The time histories and spectra of the soil forces can explain the measured ground vibration reduction of slab tracks. The calculated displacement and force distributions of slab tracks on continuous soils do not fulfil the Winkler hypothesis and Winkler models should not be used for track analysis.
This article deals with the relevance and practical feasibility of micromechanical simulations for their application to general geomechanical problems involving fluid-saturated granular assemblies, whether frictional or cohesive. A set of conceptual and numerical tools is here presented, advocating for a parallel computation using graphical processing units (GPUs) to treat large numbers of degrees of freedom with conventional Desktop computers. The fluid phase is here simulated with a particle-resolved approach in the frame of the Lattice Botzmann Method (LBM) while the granular solid phase is modelled as a collection of discrete particles from a Molecular Dynamics DEM perspective. The range of possible material behaviours for the solid granular phase is intended here to cover a broad spectrum from purely frictional to viscous cohesive materials with either brittle or transient debonding features. Specific details of the implementation and some validation cases are put forward.
Finally, some exemplary applications in the fields of soil erosion and geotechnical profile installation are provided along with a discussion on the parallel performance of the presented models. The results show that a micromechanical approach can be feasible and useful in practice, providing meaningful insights into complex engineering problems like the erosion kinetics of a soil under an impinging jet or the penetration resistance of a deep foundation in a layered soil profile.