Development of a TL-3 deep beam tubular backup bridge rail : executive summary report.
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Help
Clear All

Query Builder

Query box

Help
Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Development of a TL-3 deep beam tubular backup bridge rail : executive summary report.

Filetype[PDF-617.72 KB]


  • English
    • Details You May Also Like

    Details:

    • Creators:
    • Corporate Creators:
      Texas Transportation Institute
    • Subject/TRT Terms:
    • Publication/ Report Number:
      FHWA/OH-2010/18
    • Resource Type:
      Tech Report
    • Geographical Coverage:
      Ohio
    • Edition:
      Executive summary report.
    • Corporate Publisher:
      Ohio. Dept. of Transportation
    • Abstract:
      Ohio Department of Transportation (ODOT)’s Office of Structural Engineering has a need to evaluate and, if necessary, improve an existing bridge rail design with a simple retrofitting procedure to meet current or proposed crash testing standards. This bridge rail is the ODOT deep beam bridge guardrail that has been accepted to National Corporate Highway Research Program (NCHRP) Report 350 Test Level 2 (TL-2). A TL-2 condition involves an 1808 lb (820 kg) passenger car and a 4400 lb (2000 kg) pickup truck impacting the bridge rail at a speed of 43.5 mph (70 km/h). The impact angles for the passenger car (test designation 2-10) and pickup truck (test designation 2-11) are 20 and 25 degrees respectively. However, this bridge rail cannot be constructed (or more importantly, cannot remain) in locations where a TL-3 bridge rail is required. The TL-3 conditions involve an 1808 lb (820 kg) passenger car and a 4400 lb (2000 kg) pickup truck impacting the bridge rail at a speed of 62 mph (100 km/h). The impact angles for the passenger car (test designation 3-10) and pickup truck (test designation 3-11) are 20 degrees and 25 degrees, respectively.

      The current policy for bridge railing requires upgrading non-conforming railing systems to the TL-3 acceptance level during certain types of structural rehabilitations. The costs associated with such railing upgrades will often exceed the allotted budget for the project resulting in rehabilitations that are not performed and non-conforming railing systems left in service. Hence, there is a need for a cost effective retrofit upgrade to such railing system.

    • Format:
      PDF
    • Funding:
      134394
    • Collection(s):
    • Main Document Checksum:
    • Download URL:
    • File Type:

    Supporting Files

    • No Additional Files

    More +

    You May Also Like

    Checkout today's featured content at rosap.ntl.bts.gov

    Version 3.26