24555
2011
eng
1
17(?)
conferenceobject
The European Community on Computational Methods in Applied Sciences (ECCOMAS)
0
--
--
--
High-speed railway tracks of a surface, bridge and tunnel line and some effects on the train-induced bridge and ground vibrations
COMPDYN 2011 - 3rd International thematic conference - Computational methods in structural dynamics and earthquake engineering (Proceedings)
27228
Sonderstandort: Publica-Schrank
COMPDYN 2011 - 3rd International thematic conference - Computational methods in structural dynamics and earthquake engineering
Corfu, Greece
2011-05-25
2011-05-28
Lutz Auersch
eng
uncontrolled
Track compliance
eng
uncontrolled
Surface line
eng
uncontrolled
Bridge track
eng
uncontrolled
Tunnel track
eng
uncontrolled
Ground vibration
eng
uncontrolled
Layered soil
eng
uncontrolled
Bridge resonance
eng
uncontrolled
Train speed
eng
uncontrolled
Axle sequence
eng
uncontrolled
Track irregularities
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
Graue Literatur
24556
2011
eng
820
827
conferenceobject
Katholieke Universiteit Leuven
0
--
--
--
The dynamic force transfer of slab tracks and floating slab tracks and the corresponding ground vibration
EURODYN 2011 - 8th International conference on structural dynamics (Proceedings)
27229
978-90-760-1931-4
Sonderstandort: Publica-Schrank
EURODYN 2011 - 8th International conference on structural dynamics
Leuven, Belgium
2011-07-04
2011-07-06
Lutz Auersch
eng
uncontrolled
Railway track
eng
uncontrolled
Slab track
eng
uncontrolled
Floating slab track
eng
uncontrolled
Track-soil interaction
eng
uncontrolled
Force transfer
eng
uncontrolled
Ground vibration
Verlagsliteratur
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
27983
2013
eng
50
59
51
article
Elsevier Appl. Sci. Publ.
Barking
1
--
--
--
Response to harmonic wave excitation of finite or infinite elastic plates on a homogeneous or layered half-space
The soilstructure interaction of elastic plates on homogeneous or layered soils excited by horizontally propagating waves is analysed. Large plates are modelled by a combined finite-element boundary-element method (FEBEM), whereas the response of infinitely long plates is calculated by a numerical integration in the frequencywavenumber domain. The finite-element boundary-element method yields the complete soilplate transfer function of frequency and distance whereas the frequencywavenumber solution of the infinitely long plate can serve as an approximation for long distances on a finitely long plate. The soilplate transfer function starts to decrease strongly at the coincidence frequency, where the bending stiffness equals the plate inertia. A strong decrease follows at mid frequencies and a strong reduction of less than 0.1 of the ground vibration is reached at high frequencies. Rules for the characteristic frequencies are derived from the numerical results clearly indicating the strongest influence of the soil stiffness and the weaker influence of the bending stiffness of the plate. The influence of the mass, length and width of the plate are shown to be limited in case of realistic parameters, but it should be noted that the reduction effects are less effective for layered soils and for nearer observation points.
Computers and geotechnics
30826
10.1016/j.compgeo.2013.02.001
0266-352x
Sonderstandort: Publica-Schrank
10.04.2013
Lutz Auersch
eng
uncontrolled
Plate-soil interaction
eng
uncontrolled
Wave excitation
eng
uncontrolled
Flexible plate
eng
uncontrolled
Layered soil
eng
uncontrolled
Vibration reduction
eng
uncontrolled
Finite-element boundary-element method
eng
uncontrolled
Frequency-wavenumber method
7 Bauwerkssicherheit
7.2 Ingenieurbau
Verlagsliteratur
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
24804
2011
eng
329
335
139
conferenceobject
Springer
0
--
--
--
Reducing ground-borne micro-vibrations by plate foundations
Vibration problems ICOVP 2011 - 10th international conference on vibration problems (Proceedings)
27492
978-94-007-2068-8
0930-8989
Serientitel: Springer proceedings in physics – Series title: Springer proceedings in physics
Sonderstandort: Publica-Schrank
Vibration problems ICOVP 2011 - 10th international conference on vibration problems
Prague, Czech Republic
2011-09-05
2011-09-08
Lutz Auersch
eng
uncontrolled
Plate-soil interaction
eng
uncontrolled
Wave excitation
eng
uncontrolled
Vibration reduction
eng
uncontrolled
Finite-element boundary-element method
Verlagsliteratur
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
24807
2011
eng
3
9
conferenceobject
Science Press
0
--
--
--
Experimental soil parameters by different evaluation methods for impulsive, train and ambient excitation
ISEV 2011 - 5th International symposium on environmental vibration - Advances in environmental vibration (Proceedings)
27495
978-7-03-032373-6
Sonderstandort: Publica-Schrank
ISEV 2011 - 5th International symposium on environmental vibration - Advances in environmental vibration
Chengdu, China
2011-10-20
2011-10-22
Lutz Auersch
Samir Said
eng
uncontrolled
Wave velocity
eng
uncontrolled
Dispersion
eng
uncontrolled
SASW
eng
uncontrolled
MASW
eng
uncontrolled
SPAC
eng
uncontrolled
Damping
Verlagsliteratur
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
22014
2010
eng
101
112
3
15
article
St. Petersburg, Russia
International Institute of Acoustics and Vibration
0
--
--
--
Building response due to ground vibration - simple prediction model based on experience with detailed models and measurements
Construction work, such as pile driving and soil compaction, or road and railway traffic excite nearby buildings, and the perceptible or audible vibration can be a nuisance for nearby inhabitants. A simplified building model has been created for these situations, which includes the effects of soil-structure interaction, the low-frequency amplification along the height of the building as well as the high-frequency reduction and the floor resonances. The model consists of one wall for all supporting structures (walls and columns) and one floor for each storey. The effect of different floor resonance frequencies is included in a stochastic procedure. The soil is modelled by a spring and a viscous damper, and the free-field amplitudes of the soil are applied under this soil element.
The model can be calculated by transfer matrices or in a continuous wave-type version where an analytical solution can be evaluated numerically. The building response in the high-frequency (acoustic) region is calculated as mean values over wider frequency bands. The approach to an infinite building model can be found for these high frequencies and the corresponding soil-structure transfer can be described by the ratio of impedances at foundation level.
The rules for choosing the parameters to obtain realistic results are derived from complex calculations for example, for the stiffness and damping of building foundations and many measurements as for the damping of floor resonances. The influences on the floor resonance from the soil (damping) and the supporting structure (detuning) are important. Some more effects will be discussed by the simplified and detailed models and by measurements to establish a good understanding of ground-induced building vibrations.
International journal of acoustics and vibration
24486
1027-5851
Sonderstandort: Publica-Schrank
Lutz Auersch
Verlagsliteratur
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
22124
2010
eng
337
344
3
9
article
Science Press
Beijing, China
1
--
--
--
Attenuation of ground vibrations due to different technical sources
The attenuation of technically induced surface waves is studied theoretically and experimentally. In this paper, nineteen measurements of ground vibrations induced by eight different technical sources including road and rail traffic, vibratory and impulsive construction work or pile driving, explosions, hammer impulses and mass drops are described, and it is shown that the technically induced ground vibrations exhibit a power-law attenuation ν ~ r -q where the exponents q are in the range of 0.5 to 2.0 and depend on the source types. Comparisons performed demonstrate that the measured exponents are considerably higher than theoretically expected. Some potential effects on ground vibration attenuation are theoretically analyzed. The most important effect is due to the material or scattering damping. Each frequency component is attenuated exponentially as exp(-kr), but for a broad-band excitation, the sum of the exponential laws also yields a power law but with a high exponent. Additional effects are discussed, for example the dispersion of the Rayleigh wave due to soil layering, which yields an additional exponent of 0.5 in cases of impulsive loading.
Earthquake engineering and engineering vibration
24624
10.1007/s11803-010-0018-0
1671-3664
Sonderstandort: Publica-Schrank
14.10.2010
Lutz Auersch
Samir Said
eng
uncontrolled
Wave attenuation
eng
uncontrolled
Environmental vibrations
eng
uncontrolled
Field tests
eng
uncontrolled
Material damping
eng
uncontrolled
Scattering damping
eng
uncontrolled
Rayleigh wave
Verlagsliteratur
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
22405
2010
eng
1528
1539
4
100
article
Seismological Society of America
El Cerito, Calif.
1
--
--
--
Technically induced surface wave fields, Part I: Measured attenuation and theoretical amplitude-distance laws
The attenuation of the amplitudes with distance of technically induced surface wave fields is analyzed in theory and experiments. Experimental results of technically induced ground vibration are presented and collected from literature, which show a power-low attenuation A ~ r–q of amplitudes A with distance r and exponents q > 0.5 higher than for elastic surface waves. Additional attenuation effects are analyzed theoretically. The most important effect is due to the material or scattering damping. Each frequency component is attenuated exponentially as A ~ exp(–kr), but for a broadband excitation, the sum of the exponential laws yields a power law with a higher exponent. Some more effects are discussed, for example the dispersion of the Rayleigh wave due to the layering of the soil, which yields a stronger attenuation A ~ r–q–dq, including an additional exponent of dq = 0.5 in case of an impulsive loading.
Bulletin of the seismological society of America
24929
10.1785/0120090228
0037-1106
1943-3573
Sonderstandort: Publica-Schrank
18.11.2010
Lutz Auersch
Eigenverlag BAM
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
22406
2010
eng
1540
1550
4
100
article
Seismological Society of America
El Cerito, Calif.
1
--
--
--
Technically induced surface wave fields, Part II: Measured and calculated admittance spectra
Transfer admittance spectra of technically induced surface wave fields are analyzed in theory and experiments. Theoretical admittance spectra of layered soils are obtained by integration in wavenumber domain and compared with experimental admittances due to hammer or vibrator excitation. The admittance spectra are strongly influenced by the layering and damping of the soil. Deep stiff-soil layers yield a low-frequency cutoff, whereas a strong damping yields a high-frequency cutoff. A sharp cutoff in a narrow frequency band, which is measured at some sites, can be explained by a damping that increases with frequency, such as viscous material or scattering damping.
Bulletin of the seismological society of America
24930
10.1785/0120090229
0037-1106
1943-3573
Sonderstandort: Publica-Schrank
18.11.2010
Lutz Auersch
Eigenverlag BAM
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")
22361
2010
eng
235
261
2
48
article
Taylor & Francis
Basingstoke, Hants.
1
--
--
--
Theoretical and experimental excitation force spectra for railway-induced ground vibration: vehicle-track-soil interaction, irregularities and soil measurements
Excitation force spectra are necessary for a realistic prediction of railway-induced ground vibration. The excitation forces cause the ground vibration and they are themselves a result of irregularities passed by the train. The methods of the related analyses - the wavenumber integration for the wave propagation in homogeneous or layered soils, the combined finite-element boundary-element method for the vehicle-track-soil interaction - have already been presented and are the base for the advanced topic of this contribution. This contribution determines excitation force spectra of railway traffic by two completely different methods. The forward analysis starts with vehicle, track and soil irregularities, which are taken from literature and axle-box measurements, calculates the vehicle-track interaction and gets theoretical force spectra as the result. The second method is a backward analysis from the measured ground vibration of railway traffic. A calculated or measured transfer function of the soil is used to determine the excitation force spectrum of the train. A number of measurements of different soils and different trains with different speeds are analysed in that way. Forward and backward analysis yield the same approximate force spectra with values around 1 kN for each axle and third of octave.
Vehicle system dynamics
24881
10.1080/00423110802691515
0042-3114
Sonderstandort: Publica-Schrank
15.11.2010
Lutz Auersch
eng
uncontrolled
Railway forces
eng
uncontrolled
Vehicle-track interaction
eng
uncontrolled
Irregularities
eng
uncontrolled
Rail roughness
eng
uncontrolled
Track alignment
eng
uncontrolled
Wheel out-of-roundness
eng
uncontrolled
Ground vibration
eng
uncontrolled
Soil transfer function
Verlagsliteratur
Papiergebundenes Belegexemplar in der Bibliothek der BAM vorhanden ("Hard-copy Access")