Learn the latest in Rolling Stock Analysis for High-Speed Rail Bridges during this Bentley Bridge Special Interest Group virtual workshop. You will connect with industry colleagues and technology experts as you see recommended methods to:
- Create a true BIM model of your railroad bridge using OpenBridge Designer
- Perform a structural check using RM Bridge analytical tools
- Analyze the dynamic effects caused by high-speed trains using RM Bridge's Rolling Stock Analysis tools
One bridge structure RSA - Rolling Stock Analysis is the dynamic evaluation of multiple possible load train configurations at different feasible high speeds.
This analysis of a moving load effect is quite demanding computationally because it involves several TH - Time History analysis for the multiple possible scenarios needed to ascertain which combination of load train configuration and train passage speed causes the worst case for the key elements, positions and directions. National design codes usually limit the acceleration limits due to fatigue and user comfort criteria. The table below shows one example of different train configurations and speeds for one structure and the plot indicate the relevant cases with structural resonance.
The necessary structural model level of detailing is important as the structure vibration depends on the structure definitions. Support conditions, masses and damping are key in this process for getting the natural modes and eigenfrequencies. As the relevant excitation frequencies could be determined in advance to minimize the efforts RM Bridge offers in \Extras a Fast Rolling Stock Analysis for detecting resonance cases. Then, the detailed TH can be concentrated to be done only for the determinant relevant scenarios. The level of displacements, rotations, accelerations. internal forces and stresses can be compared with the static analysis.
Details
| Title | Rolling Stock Analysis for High Speed Rail Bridges with RM Bridge |
| Duration | 30 Mins |
| Language | English |
| Format | MP4 |
| Size | 112 MB |
| Download Method | Direct Download |
| Download Links | BECOME A MEMBER VIEW DOWNLOAD LINKS |
The post Rolling Stock Analysis for High Speed Rail Bridges with RM Bridge appeared first on Civil Engineering Knowledge Base.
source https://www.civilax.com/rolling-stock-analysis-for-high-speed-rail-bridges-with-rm-bridge/
