The final version of Chapter 13, Evaluation of Earthquake Ground Motions, has been completed. The new guideline is now available for use. The significant changes from the February 2007 draft version are highlighted below.
Summary of Changes
The February 2007 draft 6.5 has been revised with any significant changes identified below. The final Guideline document is 20 pages shorter. Changes to the Guideline are based on new states-of-the-practice.
|
Page |
Section |
Description of Revision 3 Changes |
|---|---|---|
|
i |
2.5 |
Tsunamis deleted |
|
ii |
n/a |
New Appendix B added. Old Appendix B-1 and B-2 became Appendix C. Old Appendix C-Appendix F have become Appendix D. Old Appendix F, G, H, K, and L were deleted. Appendix J became Appendix F. Appendix I became Appendix E. |
|
26 |
3.5 |
Third paragraph added maximum moment magnitude for areal sources. |
|
27 |
4.1 |
Equation B-9 added to determine percentile earthquake ground motion to be used in analysis. |
|
28 |
4.2 |
Revised the whole page. |
|
30 |
5.0 |
New page on “estimation of earthquake ground motions at a rock outcrop.” |
|
32 |
6.3 |
New paragraph regarding slip rate and percentile ground motion. |
|
32 |
6.4 |
Third paragraph added. |
|
33 |
6.5 |
Revisions to the paragraph. |
|
A-1/A-2 |
n/a |
Added equations and modified Figure A-1. |
|
B-1 to B-6 |
n/a |
New Appendix on “Selection of Appropriate Percentile Earthquake Ground Motion Level In A Deterministic Seismic Hazard Evaluation. |
|
Appendix C |
n/a |
This Appendix was old Appendix B1 and B-2 and also contains small revisions throughout. |
|
Appendix D |
n/a |
Revised and shorted chapter on ground motion models and the data is now referenced. |
|
Appendix E |
n/a |
New Appendix E is old Appendix I. |
|
Appendix F |
n/a |
New Appendix F is old Appendix J. Revisions made throughout. |
Please send any comments or suggestions on Chapter 13 of the guidelines to James McHenry and Justin Smith.
Quick Links
- Chapter 1 – General Requirements, (Final Version)
- Chapter 2 – Selecting and Accommodating Inflow Design Floods for Dams, (Final Version)
- Revised Chapter 3 – Gravity Dams
- Chapter 4 – Embankment Dams (Revised Draft Version)
- Chapter 6 – Emergency Action Plans (Final Version)
- Final Revised Engineering Guidelines Chapter 11 - Arch Dams
- Chapter 13 – Evaluation of Earthquake Ground Motions (Final)
- Chapter 14 – Emergency Action Plans (Final Version)
- Chapter 14 – Radial Gate Inspection Reports Appendix L
- Testing and Reporting on Spillway Gate Operations
- Revised Dam Safety Surveillance Monitoring Plan and Report (DSSMP/DSSMR) - Appendices J and K
- Status of Proposed New Chapters and Proposed Revisions
- Annual Spillway Gate Operation Certificate PDF
- Annual Spillway Gate Operation Certificate DOC