• UTRC II SUBMISSION SYSTEM
  • Careers
  • Contact
  • Login / Register

Search form

Home
  • Home
  • About
    • Welcome to the UTRC Site
    • Theme
    • Staff
    • Board of Directors
    • Press
    • Annual Report
    • Program Progress Performance Report
    • Newsletter
  • Research
    • Projects
    • RFPs
    • Submit Your Proposal
    • Funding Categories
      • UTRC Research Initiative
      • UTRC Advanced Technology Initiative
      • UTRC Faculty Development Mini-grants
      • UTRC Best Transportation Paper Competition
      • News
  • Publications
  • Directory
    • Consortium Universities
    • Partners
    • Principal Investigators
    • Staff
    • Board of Directors
  • Education
    • Where to Study
    • Transportation and Planning Doctoral Series
    • AITE Scholarships
    • UTRC Dissertation Grants
    • Summer Institute
    • September 11th Memorial Program
    • Technology Transfer and Training
    • Online Graduate Certificate Program
    • UTRC Travel Grants
    • Student Award Recipients
    • Apply For Scholarships
  • Events
    • Upcoming Events
    • Past Events
    • Visiting Scholar Seminar Series
  • Resources

Seismic Design Considerations, Volume II: Appendices II - VIII

NJDOT has adopted “AASHTO Guide Specifications for LRFD Seismic Bridge Design” approved by the Highway Subcommittee on Bridges and Structures in 2007. The main objective of research presented in this report has been to resolve following issues for an effective implementation of AASHTO Guide Specifications: (i) AASHTO Guide Specifications don’t provide any specific guidelines for classification and performance requirements for critical bridges. This issue is resolved by proposing performance requirements and classification criteria for critical bridges in New Jersey. (ii) Guide Specifications present displacement based approach, which is significantly different than the force-based approach in previous versions of seismic guidelines. Nine examples of reinforce concrete and steel bridges of different characteristics (spans, skew, etc.) illustrating the use of newly adopted seismic guide specifications have been developed for training of engineers in New Jersey. (iii) NJDOT maintains an extensive electronic database of soil boring logs for the State of New Jersey. A zip-code based soil site map for New Jersey has been developed by analyzing soil boring data and other available New Jersey soil information. This map can be used for a rapid seismic hazard evaluation for the entire state or for a network of bridges in the state. (iv) AASHTO Guide Specifications introduce seismic design categories based on local seismicity and soil properties. Using the seismic soil map and zip code based seismic spectra provided in the AAHSTO Guide Specifications, seismic design category maps for critical and standard bridges in New Jersey have been developed. A detailed analysis has also been carried out to develop liquefaction potential maps for the state of New Jersey. These maps can be used to determine the need for a detailed liquefaction analysis for a particular bridge site. A detailed guideline on developing site-specific spectra has also been developed, since AASHTO Guide Specifications recommend site-specific spectra for critical bridges. (v) Existing bridges in New Jersey are required to be retrofitted on the basis of 2006 Edition of the “Seismic Retrofitting Manual for Highway Structures: Part 1 – Bridges”. Simplified guidelines for seismic retrofit of existing bridges, that are consistent with guidelines for the design of new bridges in AASHTO Guide Specifications, have been developed.

Project Details

Author(s): 
Dr. Anil Agrawal
Universities: 
City University of New York
Publication Year: 
2012
Publication Type: 
Final Report
Project: 
Seismic Design Recommendations
Please subscribe to our Newsletter:

Get our newsletter

Please enter your email address to subscribe to our newsletter:

Contact Us

University Transportation Research Center
Marshak Hall - Science Building, Suite 910 
The City College of New York
138th Street & Convent Avenue ,New York, NY 10031