1 / 17

Authors: Daniel Cantero & Dr. Arturo González (University College Dublin)

Location and Evaluation of Maximum Dynamic Effects on a Simply Supported Beam due to a Quarter-Car Model. Authors: Daniel Cantero & Dr. Arturo González (University College Dublin). 1. 2. 3. 4. 5. Overview. 1) Introduction. 2) P-load. 3) Speed Influence. 4) Monte Carlo. 5) Conclusions.

tamma
Download Presentation

Authors: Daniel Cantero & Dr. Arturo González (University College Dublin)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Location and Evaluation of Maximum Dynamic Effects on a Simply Supported Beam due to a Quarter-Car Model Authors: Daniel Cantero & Dr. Arturo González (University College Dublin)

  2. 1 2 3 4 5 Overview 1) Introduction 2) P-load 3) Speed Influence 4) Monte Carlo 5) Conclusions

  3. 1 2 3 4 5 Introduction Vehicle/Bridge Interaction Maximum Stress not necessarily at mid-span

  4. 1 2 3 4 5 P-load Euler-Bernoulli beam Constant vertical force at constant speed Span = 25m Speed = 25 m/s Load = 10 KN

  5. 1 2 3 4 5 P-load Static Bending Moment at mid-span

  6. 1 2 3 4 5 P-load Total Bending Moment at mid-span (Static + Dynamic) DAF = 0.9959

  7. 1 2 3 4 5 P-load Total Bending Moment (Static + Dynamic) FDAF = 1.0648 COP = 11 m

  8. 1 2 3 4 5 P-load FDAF DAF

  9. 1 2 3 4 5 P-load Dynamic Amplification Factor DAF = 0.9959 Full length Dynamic Amplification Factor FDAF = 1.0648 FDAF = ( 1 + γ ) · DAF γ = 6.92 % COP = 11 m Critical Observation Point COP = 44 %

  10. 1 2 3 4 5 Speed Influence DynamicAmplification & FDAF DAF γ values COP

  11. 1 2 3 4 5 Monte Carlo Vehicle parameters ( Speed, Masses, Suspension stiffness and damping, Tyre stiffness) Bridge lengths ( 8 different spans between 17 and 31 m) Road profile ( ISO Class A, B and C profiles)

  12. 1 2 3 4 5 Monte Carlo COP

  13. 1 2 3 4 5 Monte Carlo γ values

  14. 1 2 3 4 5 Monte Carlo Mean Values

  15. 1 2 3 4 5 Conclusions 1) Maximum stress can be significantly higher than mid-span stress 2) Maximum stresses occur in between 30 % and 70 % of bridge span 3) Road roughness has big influence

  16. 1 2 3 4 5 Acknowledgments Assessment and Rehabilitation of Central European Highway Structures

More Related