Filtern
Dokumenttyp
- Vortrag (37)
- Beitrag zu einem Tagungsband (24)
- Zeitschriftenartikel (16)
- Beitrag zu einem Sammelband (3)
- Buchkapitel (1)
- Posterpräsentation (1)
Schlagworte
- Ground vibration (20)
- Hammer impact (8)
- Train passage (8)
- Building vibration (7)
- Layered soil (7)
- Train-induced ground vibration (7)
- Bahnerschütterungen (6)
- Slab track (6)
- Vibration measurements (6)
- Layered soils (5)
- Container loading (4)
- Drop test (4)
- Erschütterungsminderung (4)
- Excitation forces (4)
- Foundation load (4)
- Mitigation (4)
- Tunnel (4)
- Vehicle-track-soil interaction (4)
- Attenuation (3)
- Axle impulses (3)
- Dispersionsmessung (3)
- Elastische Gleiselemente (3)
- Emission (3)
- Erschütterungen (3)
- Erschütterungsprognose (3)
- Filter effects (3)
- Irregular soil (3)
- Railway bridge (3)
- Randomly heterogeneous soil (3)
- Scattering (3)
- Train speed (3)
- Vehicle-track interaction (3)
- Wellengeschwindigkeit (3)
- 2-span bridge (2)
- Achsfolgespektren (2)
- Apartment building (2)
- Axle sequence (2)
- Axle-sequence spectrum (2)
- Ballast track (2)
- Bauteile (2)
- Bauwerke (2)
- Bodenübertragungsfunktion (2)
- Brücken (2)
- Displacements (2)
- Elastische Elemente (2)
- Elastische Gebäudelagerung (2)
- Erschütterungsausbreitung (2)
- Evaluation (2)
- Finite element models (2)
- Freight train (2)
- Gleiströge (2)
- Ground vibration measurements (2)
- Halbraum (2)
- High-speed train (2)
- Immission (2)
- Irregular ballast (2)
- Irregularities (2)
- Measurement (2)
- Measurements (2)
- Modalanalyse (2)
- Office tower (2)
- Passenger train (2)
- Prediction (2)
- Railway (2)
- Railway tunnel (2)
- Railways (2)
- Rechenmodelle (2)
- Scattered axle impulses (2)
- Soil-wall-floor model (2)
- Static axle loads (2)
- Surface-tunnel reduction (2)
- Track-soil interaction (2)
- Train excitation (2)
- Transmission (2)
- Vehicle–track interaction (2)
- Vibration measurement (2)
- Vollraum (2)
- Wellenausbreitung in der Tiefe (2)
- Zuggeschwindigkeit (2)
- Achsimpulse (1)
- Amplitude-charge weight laws (1)
- Amplitude-distance laws (1)
- Amplituden-Abstands-Gesetze (1)
- Axle loads (1)
- Axle pulses (1)
- Bahngleis (1)
- Base isolation (1)
- Bauwerk-Boden-Wechselwirkung (1)
- Bodenschlitz (1)
- Boundary element (1)
- Bridge (1)
- Bridge resonance (1)
- Bridge vibration (1)
- Building response (1)
- Cancellation (1)
- Cars (1)
- Column/wall resonance (1)
- Combined finite-element boundary-element method (1)
- Compliance function (1)
- Components of excitation (1)
- Continuous soil (1)
- Continuously inhomogeneous soils (1)
- Damage detection (1)
- Deckeneigenfrequenzen (1)
- Deckenschwingungen (1)
- Dynamic axle loads (1)
- Dynamic loads (1)
- Dämpfung (1)
- Einfügungsdämmung (1)
- Erschütterungen im Fernfeld (1)
- Explosion-induced ground vibrations (1)
- Fahrzeug-Fahrweg-Boden-Wechselwirkung (1)
- Fequency domain (1)
- Finite element (1)
- Finite element method (1)
- Finite-element boundary-element method (1)
- Flexibility (1)
- Flexible car body (1)
- Flexible wheelset (1)
- Floor resonance (1)
- Floors (1)
- Footbridge (1)
- Foundations (1)
- Frequency response function (1)
- Gebäudelagerung (1)
- Gebäudemodelle (1)
- Gebäudeschwingungen (1)
- Geometric vehicle and track irregularities (1)
- Geometrie (1)
- High-Rise Building (1)
- High-rise buildings (1)
- Impedanzmethode (1)
- Inertial Interaction (1)
- Inertial interaction (1)
- Inhomogeneous soils (1)
- Kinematic Interaction (1)
- Kinematic interaction (1)
- Kraft auf den Boden (1)
- Long-span bridge (1)
- Measurement campaigns (1)
- Modal analysis (1)
- Modal force spectrum (1)
- Modal load spectrum (1)
- Modes (1)
- Modes and waves (1)
- Movin load test (1)
- Multi-beam method (1)
- Multi-beam track model (1)
- Nachgiebigkeiten (1)
- Normung (1)
- Obstacles (1)
- Office building (1)
- Pfahlnachgiebigkeiten (1)
- Pile Foundation (1)
- Pile bending stiffness (1)
- Pile foundation (1)
- Pile groups (1)
- Prediction of explosion induced ground and building vibration (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)
- Residential building (1)
- Resonance (1)
- Richtige Fahrzeugmasse (1)
- Rigid vehicle model (1)
- Schienenfahrweg (1)
- Schienenfahrwege (1)
- Simple and fast prediction (1)
- Simple prediction (1)
- Soft track elements (1)
- Soil forces (1)
- Soil properties (1)
- Soil stiffness (1)
- Soil-building interaction (1)
- Soil-building resonance (1)
- Soil-pile interaction (1)
- Soil-wall floor model (1)
- Spektralanalyse (1)
- Stiffness variation (1)
- Störgrößen (1)
- Surface Foundation (1)
- Surface line (1)
- Switch (1)
- Track and vehicle irregularities (1)
- Track beam (1)
- Track damage (1)
- Track damage monitoring (1)
- Track damage quantification (1)
- Track deflection (1)
- Track displacements (1)
- Track filter (1)
- Track filtering (1)
- Track vibration (1)
- Train configuration (1)
- Train passages (1)
- Train-induced vibration (1)
- Tran speed (1)
- Transfer fuction (1)
- Transfer function (1)
- Trench (1)
- Tunnel line (1)
- Tunnel-pile transfer (1)
- Tunnel-to-surface reduction (1)
- Tunnelstrecke (1)
- Turnout (1)
- Under-sleeper pads (1)
- Varying soil stiffness (1)
- Varying stiffness (1)
- Varying track stiffness (1)
- Vibration excitation (1)
- Wavenumber domain (1)
- Wavenumber integrals (1)
- Wavenumber method (1)
- Waves (1)
- Wellenausbreitung (1)
- Wellenfeldberechnung (1)
- Wheelset (1)
- Wheelset accelerations (1)
- Wind energy tower (1)
- Windenergieanlagen (1)
- Zerstreute Achsimpulse (1)
- elastische Gebäudelagerungen (1)
- layered soil (1)
- zerstreute Achslastimpulse (1)
- Übertragungsmatrizen (1)
Organisationseinheit der BAM
- 7 Bauwerkssicherheit (82) (entfernen)
Eingeladener Vortrag
- nein (37)
The Federal Institute of Material Research and Testing has performed many impact tests from very small laboratory tests to very big “free-field” tests with heavy containers on stiff foundations. The first measurements have been done on a big foundation where it should be guaranteed that the foundation is rigid and the container is tested properly. Later on, a smaller drop test facility has been built on the ground inside an existing building. It had to be controlled by prediction and measurements that the drop test will not damage the building. Tests from different heights on soft, medium, and stiff targets have been done to find out rules which allow to identify acceptable and unacceptable drop tests. Later on, the biggest drop test facility has been built for masses up to 200 t. It was necessary for the design of the foundation to estimate the forces which oc-cur during the drop tests. In addititon, the acceptable tests should be selected and controlled by measurements where the impact duration is important. Dif-ferent sensors, accelerometers, accelerometers with mechanical filters, geo-phones (velocity transducers), strain gauges, and pressure cells have been ap-plied for these tasks. Signal transformations and model calculations have been used to check and understand the dynamic measurements. The simplest law is the conservation of the momentum which is a good approximation if the impact is short. If the soil under the foundation has an influence on the deceleration of the container, the maximum foundation velocity is lower than the simple esti-mation.
The Federal Institute of Material Research and Testing has performed many impact tests from very small laboratory tests to very big “free-field” tests with heavy containers on stiff foundations. The first measurements have been done on a big foundation where it should be guaranteed that the foundation is rigid and the container is tested properly. Later on, a smaller drop test facility has been built on the ground inside an existing building. It had to be controlled by prediction and measurements that the drop test will not damage the building. Tests from different heights on soft, medium, and stiff targets have been done to find out rules which allow to identify acceptable and unacceptable drop tests. Later on, the biggest drop test facility has been built for masses up to 200 t. It was necessary for the design of the foundation to estimate the forces which oc-cur during the drop tests. In addititon, the acceptable tests should be selected and controlled by measurements where the impact duration is important. Dif-ferent sensors, accelerometers, accelerometers with mechanical filters, geo-phones (velocity transducers), strain gauges, and pressure cells have been ap-plied for these tasks. Signal transformations and model calculations have been used to check and understand the dynamic measurements. The simplest law is the conservation of the momentum which is a good approximation if the impact is short. If the soil under the foundation has an influence on the deceleration of the container, the maximum foundation velocity is lower than the simple esti-mation.