SECTION 3: LOADS AND LOAD FACTORS
Figure 3.10.2.1-1—Horizontal Peak Ground Acceleration Coefficient for the Conterminous United States (PGA) with
Seven Percent Probability of Exceedance in 75 Years (Approx. 1,000-year Return Period)
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3-73
3-75
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SECTION 3: LOADS AND LOAD FACTORS
Figure 3.10.2.1-2—Horizontal Response Spectral Acceleration Coefficient for the Conterminous United States at Period
of 0.2 s (SS) with Seven Percent Probability of Exceedance in 75 Years (Approx. 1,000-year Return Period) and
Five Percent Critical Damping
Copyright American Association of State Highway and Transportation Officials
© 2020 by the American Association of State
Highway
Transportation
Officials.User=Nagengast, Wil
Provided by IHS Markit under license with AASHTO
Licensee=Ove
Arupand
and Partners
- New York/5969159004,
Not for Resale, 06/03/202 0 07:21:08 MDT
No reproduction or networking permitted without license from IHS
All rights reserved. Duplication is a violation of applicable law.
3-77
Figure 3.10.2.1-3—Horizontal Response Spectral Acceleration Coefficient for the Conterminous United States at Period
of 1.0 s (S1) with Seven Percent Probability of Exceedance in 75 Years (Approx. 1,000-year Return Period) and
Five Percent Critical Damping
Copyright American Association of State Highway and Transportation Officials
© 2020 by the American Association of State
Highway
Transportation
Officials.User=Nagengast, Wil
Provided by IHS Markit under license with AASHTO
Licensee=Ove
Arupand
and Partners
- New York/5969159004,
Not for Resale, 06/03/202 0 07:21:08 MDT
No reproduction or networking permitted without license from IHS
All rights reserved. Duplication is a violation of applicable law.
--`,`,,`,,`,``,,,``,,``,,``,``,`-`-`,,`,,`,`,,`---
SECTION 3: LOADS AND LOAD FACTORS