Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 12, Number 3, September 2001 , pages 267-281 DOI: https://doi.org/10.12989/sem.2001.12.3.267 |
|
|
|
Vertical vibrations of a multi-span beam steel bridge induced by a superfast passenger train |
||
M. Klasztorny(Poland)
|
||
| Abstract | ||
|
Transient and quasi-steady-state vertical vibrations of a multi-span beam steel bridge located on a single-track railway line are considered, induced by a superfast passenger train, moving at speed 120-360 km/h. Matrix dynamic equations of motion of a simplified model of the system are formulated partly in the implicit form. A recurrent-iterative algorithm for solving these equations is presented. Excessive vibrations of the system in the resonant zones are reduced effectively with passive dynamic absorbers, tuned to the first mode of a single bridge span. The dynamic analysis has been performed for a series of types of bridges with span lengths of 10 to 30 m, and with parameters closed to multi-span beam railway bridges erected in the second half of the 20 th century. | ||
| Key Words | ||
| railway bridge; multi-span bridge; beam steel bridge; superfast train; moving load; transient vibrations; quasi-steady-state vibrations; passive dynamic absorbers; vibration control. | ||
| Address | ||
| M. Klasztorny, Institute of Mechanics and Design, Warsaw University of Technology, Warsaw 02524, Poland | ||