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The current AASHTO specifications for seismic design mandate site-specific evaluation of the earthquake design ground motion (i.e., the acceleration response spectrum) for ground conditions termed Site Class F. In the AASHTO specifications, Site Class F soils include soft clay sites. These AASHTO specifications also allow discretionary site-specific analyses for other ground conditions and a reduction in mapped design ground motions of as much as 33% if justified by a site-specific ground motion analysis. Some state departments of transportation (DOTs) are taking advantage of this site response reduction provision, particularly in cases where pore pressure generation could lead to soil liquefaction-
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Subjects
Soils, Testing, Pavements, Subgrades, Shear strength of soils, Measurement, Earthquake hazard analysis, Earthquake resistant design, Vibration, Seismology, Earthquakes, Design methods, Geological activities and processes, Ground movements, Planning stages, Seismic design, SeismicityPlaces
United StatesEdition | Availability |
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Practices and procedures for site-specific evaluations of earthquake ground motions
2012, Transportation Research Board
in English
0309223555 9780309223553
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Book Details
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Edition Notes
At head of title: National Cooperative Highway Research Program.
"A synthesis of highway practice."
Includes bibliographical references (p. 27-38).
Also available online.
Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration NCHRP project 20-05, topic 42-03
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- Created November 13, 2020
- 1 revision
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November 13, 2020 | Created by MARC Bot | Imported from Library of Congress MARC record |