Practices and procedures for site-specific evaluations of earthquake ground motions
By: consultants, Neven Matasovic and Youssef Hashash
Contributors: Hashash, Youssef M. A.; National Research Council (U.S.). Transportation Research Board; National Cooperative Highway Research Program; American Association of State Highway and Transportation Officials; United States. Federal Highway Administration
Series: NCHRP synthesis -- 428; Synthesis of highway practice -- 428.
Publisher: Transportation Research Board
Published: 2012
Place of publication: Washington, D.C
Language: eng
Number of pages: 78
ISBN-13: 9780309223553
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; Seismicity
Other titles: Site-specific evaluations of earthquake ground motions
Description: 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-
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
Table of contents: title: Introduction; title: Current state of evaluation of site effects on ground motions; title: Approach to survey of current practice; title: Survey responses and relevant literature; title: Conclusions and suggestions for further research