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Probabilistic Seismic Demand Analysis of Self-Centering Bridges

Explore the seismic performance of self-centering bridges under near-fault ground motions through Probabilistic Seismic Demand Analysis. Learn about PSDA methodologies, bridge models, and predictive equations.

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Probabilistic Seismic Demand Analysis of Self-Centering Bridges

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Presentation Transcript

  1. Time Domain Probabilistic Seismic Demand Analysis of Self Centering Bridges under near fault ground motions

  2. Introduction • Probabilistic Seismic Demand Analysis (PSDA) • Self centering Bridges

  3. Outline • PSDA Overview • Bridge Model - Material Models -Moment Curvature Analysis -P-M interaction - Model calibration - SAP 2000 model assembly • PSDA methodologies • Results and Conclusion

  4. Probabilistic Seismic Demand Analysis • Definition • Basic Equation

  5. Bridge Model

  6. Bridge Model

  7. Bridge Model ( figure to be corrected )

  8. Bridge Model ( figure to be corrected )

  9. Bridge Model

  10. Bridge Model

  11. Bridge Model

  12. Bridge Model

  13. Bridge Response For Pulse like GM: For non-pulse like GM:

  14. Bridge Response For Simple Pulses

  15. Probabilistic Seismic Demand Analysis • Traditional Approach • Broadband • Enhanced Broadband • Time Domain ( Sehhati (2008))

  16. Probabilistic Seismic Demand Analysis Predictive Equations required : • For Pulse period • For Pulse amplitude

  17. Probabilistic Seismic Demand Analysis Predictive Equations required : • For Pulse occurance • For Rupture Length

  18. Results

  19. Results

  20. Results

  21. Results

  22. Results

  23. Results

  24. Results

  25. Results

  26. Results

  27. Results

  28. Results

  29. Results

  30. Results

  31. Results

  32. Results

  33. Results

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