MASH TL-4 Engineering Analyses and Detailing of 36-inch and 42-inch High Median Barriers for LADOTD

The research objective is to analyze the strengths of the four proposed retrofit designs considered for this project in accordance with AASHTO LRFD Section 13 Specifications for MASH Test Level 4 impact conditions. These designs are briefly described as follows: 1. 36” single slope median barrier without the longitudinal open joint (as shown in Figure 1 except no longitudinal open joint). 2. 36” single slope median barrier with longitudinal open joints (as shown in Figure 1). 3. 42: single slope median barrier without the longitudinal open joint (same as Figure 1 except 42” tall and 8” wide at top). 4. 42” single slope median barrier with longitudinal open joint (same as 2 except 42” tall, 8” wide at top). Recommendation(s) and improvement(s) will be made as necessary based on our analyses to improve the strength and performance of MASH TL-4 conditions.

Language

• English

Project

• Status: Active
• Funding: $61800
• Contract Numbers:

  23-1ST

  1000464

• Sponsor Organizations:

  Federal Highway Administration

  5304 Flanders Drive, Suite A
  Baton Rouge, LA  United States  70808
• Managing Organizations:

  Louisiana Transportation Research Center

  4101 Gourrier Avenue
  Baton Rouge, LA  United States  70808

  Louisiana Department of Transportation

  P.O. Box 94245
  1201 Capitol Access Road
  Baton Rouge, LA  United States  70804-9245
• Project Managers:

  Alaywan, Walid

• Performing Organizations:

  Louisiana Transportation Research Center

  4101 Gourrier Avenue
  Baton Rouge, LA  United States  70808
• Principal Investigators:

  Williams, William

• Start Date: 20220801
• Expected Completion Date: 20230131
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Load and resistance factor design; Median barriers; Performance; Specifications
• Subject Areas: Bridges and other structures; Design; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01854750
• Record Type: Research project
• Source Agency: Louisiana Transportation Research Center
• Contract Numbers: 23-1ST, 1000464
• Files: RIP, STATEDOT
• Created Date: Aug 17 2022 8:55AM