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原文传递 Verification/Development of Seismic Design Specifications for Downstate Zone

题名：	Verification/Development of Seismic Design Specifications for Downstate Zone
作者：	Agrawal, A.; Liu, H.; Stewart, J.; Wang, H.; Han, Y.; Imbsen, R.; Abrahams, M.
关键词：	New York City (New York)##Bridges##Guide specifications##Seismic design##Guidelines##Methodology##Assumptions##Improvement##Recommendation##Comparisions##Nassau County(New York)##Westchester County (New York)##
摘要：	The New York City Department of Transportation (NYCDOT) Seismic Design Guidelines Report was updated in September 2008 by Weidlinger Associates to reflect current state-of-the-art knowledge. The NYCDOT seismic design guidelines are for use in the Downstate Zone which consists of New York City, Rockland County, Westchester County and Nassau County. NYSDOT has adopted the AASHTO LRFD Seismic Design Specifications for the Upstate Zone. The NYCDOT Seismic Design Guidelines Report (September 2008) proposed for use in the Downstate Zone has some key differences with the current AASHTO LRFD Bridge Design Specifications. The main objectives of this project has been to (i) carry out an independent assessment of the proposed New York City Department of Transportation (NYCDOT) Seismic Design Guidelines Report (September 2008) by evaluating the methodology and assumptions used in the development of the report and by critically commenting on the results of the report, (ii) determine If the methodology and assumptions used are acceptable, (iii) determine the effects of the NYCDOT Seismic Design Guidelines Report by developing examples of critical and essential bridges for soil types A to E showing comparisons of NYCDOT and AASHTO LRFD spectra curves (iv) estimate the design and construction cost differences using NYCDOT and AASHTO LRFD Guide Specifications for the seismic design of bridges and (v) develop New York State Blue Pages to be used with both the AASHTO LRFD Bridge Design Specifications and the AASHTO Guide Specifications for LRFD Seismic Bridge Design. Numerous changes in the NYCDOT seismic design guidelines have been proposed and incorporated. Recommendations for future improvement of the guideline have also been provided.
总页数：	104
报告类型：	科技报告