ground motion maps - memphis€¦ · instructional materials complementing fema 451, design...
TRANSCRIPT
![Page 1: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/1.jpg)
Ground Motion Maps 5b - 1Instructional Materials Complementing FEMA 451, Design Examples
GROUND MOTION MAPSHow To Obtain the Basic Values
![Page 2: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/2.jpg)
Ground Motion Maps 5b - 2Instructional Materials Complementing FEMA 451, Design Examples
Seismic Ground Motions
1 Determine basic values from maps for bedrock conditions
2, 3 Classify soil conditions at site and determine site coefficients
4 Determine site-adjusted values4 Take two-thirds for use in design5 Construct design response spectrum7 Site-specific studies permitted/required
![Page 3: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/3.jpg)
Ground Motion Maps 5b - 3Instructional Materials Complementing FEMA 451, Design Examples
Mapped Acceleration Parameters
• Two sets of maps; acceleration parameter is in units of gravity
• SS for spectral response acceleration at 0.2 sec• S1 for spectral response acceleration at 1.0 sec• Shortcut to Seismic Design Category A:
SS < 0.15 and S1 < 0.04
![Page 4: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/4.jpg)
Ground Motion Maps 5b - 4Instructional Materials Complementing FEMA 451, Design Examples
SS and S1 are themapped 2% in 50 yearspectral accelerationsfor firm rock
SDS and SD1 are thedesign level spectralaccelerations (modifiedfor site and “expectedgood performance”)
Ground Motion Parameters & Seismic Hazard
Mapped Contours of SS
![Page 5: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/5.jpg)
Ground Motion Maps 5b - 5Instructional Materials Complementing FEMA 451, Design Examples
Long-Period Transition Maps
![Page 6: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/6.jpg)
Ground Motion Maps 5b - 6Instructional Materials Complementing FEMA 451, Design Examples
Location of Deterministic Areas
![Page 7: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/7.jpg)
Ground Motion Maps 5b - 7Instructional Materials Complementing FEMA 451, Design Examples
Typical Probabilistic Map
![Page 8: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/8.jpg)
Ground Motion Maps 5b - 8Instructional Materials Complementing FEMA 451, Design Examples
CD vs Internet
• Internet• CD• Both sources give the same answers• Both sources have a similar user
interface• The graphics are somewhat different
![Page 9: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/9.jpg)
Ground Motion Maps 5b - 9Instructional Materials Complementing FEMA 451, Design Examples
Internet Ground Motion Tool
http://earthquake.usgs.gov/research/hazmaps/
SEISMIC DESIGN VALUES FOR BUILDINGS
Ss and S1, Hazard Curves, Uniform Hazard Spectra, and Residential Design Category
![Page 10: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/10.jpg)
Ground Motion Maps 5b - 10Instructional Materials Complementing FEMA 451, Design Examples
USGS Ground Motion Calculator
![Page 11: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/11.jpg)
Ground Motion Maps 5b - 11Instructional Materials Complementing FEMA 451, Design Examples
Installation
![Page 12: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/12.jpg)
Ground Motion Maps 5b - 12Instructional Materials Complementing FEMA 451, Design Examples
Installation Caution
![Page 13: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/13.jpg)
Ground Motion Maps 5b - 13Instructional Materials Complementing FEMA 451, Design Examples
Opening Screen
![Page 14: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/14.jpg)
Ground Motion Maps 5b - 14Instructional Materials Complementing FEMA 451, Design Examples
Analysis Options
![Page 15: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/15.jpg)
Ground Motion Maps 5b - 15Instructional Materials Complementing FEMA 451, Design Examples
IBC Option
![Page 16: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/16.jpg)
Ground Motion Maps 5b - 16Instructional Materials Complementing FEMA 451, Design Examples
User Aids
![Page 17: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/17.jpg)
Ground Motion Maps 5b - 17Instructional Materials Complementing FEMA 451, Design Examples
Calculate SS AND S1
![Page 18: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/18.jpg)
Ground Motion Maps 5b - 18Instructional Materials Complementing FEMA 451, Design Examples
Location By Zipcode
![Page 19: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/19.jpg)
Ground Motion Maps 5b - 19Instructional Materials Complementing FEMA 451, Design Examples
Calculate SMS, SM1, SDS, SD1
![Page 20: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/20.jpg)
Ground Motion Maps 5b - 20Instructional Materials Complementing FEMA 451, Design Examples
Calculate Site Coefficients
![Page 21: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/21.jpg)
Ground Motion Maps 5b - 21Instructional Materials Complementing FEMA 451, Design Examples
SMS, SM1, SDS, SD1 Values
![Page 22: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/22.jpg)
Ground Motion Maps 5b - 22Instructional Materials Complementing FEMA 451, Design Examples
Calculate MCE Spectrum
![Page 23: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/23.jpg)
Ground Motion Maps 5b - 23Instructional Materials Complementing FEMA 451, Design Examples
Calculate SM Spectrum
![Page 24: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/24.jpg)
Ground Motion Maps 5b - 24Instructional Materials Complementing FEMA 451, Design Examples
Calculate SD Spectrum
![Page 25: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/25.jpg)
Ground Motion Maps 5b - 25Instructional Materials Complementing FEMA 451, Design Examples
Graphic Options
![Page 26: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/26.jpg)
Ground Motion Maps 5b - 26Instructional Materials Complementing FEMA 451, Design Examples
Map Spectrum: Sa - T
![Page 27: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/27.jpg)
Ground Motion Maps 5b - 27Instructional Materials Complementing FEMA 451, Design Examples
All Spectra: Sa - T
![Page 28: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/28.jpg)
Ground Motion Maps 5b - 28Instructional Materials Complementing FEMA 451, Design Examples
Calculate Hazard Curves
![Page 29: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/29.jpg)
Ground Motion Maps 5b - 29Instructional Materials Complementing FEMA 451, Design Examples
Annual Frequency of Exceedance
![Page 30: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/30.jpg)
Ground Motion Maps 5b - 30Instructional Materials Complementing FEMA 451, Design Examples
Return Period
![Page 31: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/31.jpg)
Ground Motion Maps 5b - 31Instructional Materials Complementing FEMA 451, Design Examples
Single Values
![Page 32: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/32.jpg)
Ground Motion Maps 5b - 32Instructional Materials Complementing FEMA 451, Design Examples
Deaggregation
• Breaking apart of the probabilistic hazard analysis
• Helps remove some of the “black box”effect
• Helps visualize the source of the hazard
• Many uses, e.g. liquefaction analysis, time history determination
![Page 33: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/33.jpg)
Ground Motion Maps 5b - 33Instructional Materials Complementing FEMA 451, Design Examples
Deaggregation – San Francisco
![Page 34: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/34.jpg)
Ground Motion Maps 5b - 34Instructional Materials Complementing FEMA 451, Design Examples
Deaggregation - Coos Bay, Oregon
![Page 35: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/35.jpg)
Ground Motion Maps 5b - 35Instructional Materials Complementing FEMA 451, Design Examples
Deaggregation - Portland, Oregon
![Page 36: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/36.jpg)
Ground Motion Maps 5b - 36Instructional Materials Complementing FEMA 451, Design Examples
Deaggregation – Olympia, Washington
![Page 37: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/37.jpg)
Ground Motion Maps 5b - 37Instructional Materials Complementing FEMA 451, Design Examples
Seattle – 0.2 sec, Detailed
![Page 38: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/38.jpg)
Ground Motion Maps 5b - 38Instructional Materials Complementing FEMA 451, Design Examples
Seattle – 0.2 sec
![Page 39: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/39.jpg)
Ground Motion Maps 5b - 39Instructional Materials Complementing FEMA 451, Design Examples
Seattle – 1.0 sec
![Page 40: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/40.jpg)
Ground Motion Maps 5b - 40Instructional Materials Complementing FEMA 451, Design Examples
Design Values Outside the United States
• Based on GASHAP Data• 10% PE in 50 years• PGA only• Estimate 2% from 10% PE by multiplying by
2.0• Ss = 2.5xPGA• S1 = PGA• Use site-specific studies where available• USGS studies where available
![Page 41: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/41.jpg)
Ground Motion Maps 5b - 41Instructional Materials Complementing FEMA 451, Design Examples
UFC 3-310-1
![Page 42: GROUND MOTION MAPS - Memphis€¦ · Instructional Materials Complementing FEMA 451, Design Examples Ground Motion Maps 5b - 2 Seismic Ground Motions 1 Determine basic values from](https://reader030.vdocuments.us/reader030/viewer/2022040909/5e81d8e16fa087739b12659d/html5/thumbnails/42.jpg)
Ground Motion Maps 5b - 42Instructional Materials Complementing FEMA 451, Design Examples
What is GSHAP?