Abstract
An improved and codifiable footbridge response evaluation is presented herewith, in which peak vertical accelerations are provided as a function of load return period in the form of response spectra. To achieve this, a series of Monte Carlo simulations are employed to generate vertical loads induced by a "random" crowd that are subsequently used in linear timehistory analyses of the response of bridges with varying fundamental frequencies. The peak accelerations are presented as a function of return period and it is shown that the acceleration response due to a crowd is lower than $\sqrt{N}$ times the response of a single pedestrian, which is often
referred to as a conservative estimate for crowds.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Third International Conference on Structural Engineering, Mechanics and Computation |
| Place of Publication | Rotterdam, Netherlands |
| Publisher | Millpress |
| Publication date | 2007 |
| Publication status | Published - 2007 |
| Event | Third International Conference on Structural Engineering, Mechanics and Computation - Cape Town, South Africa Duration: 10 Sept 2007 → 12 Sept 2007 Conference number: 3 |
Conference
| Conference | Third International Conference on Structural Engineering, Mechanics and Computation |
|---|---|
| Number | 3 |
| Country/Territory | South Africa |
| City | Cape Town |
| Period | 10/09/2007 → 12/09/2007 |
Keywords
- Footbridge, dynamics, pedestrian, vertical vibrations, load model, response spectrum, return period.