3D Laser Scanning for Quality Control and Assurance in Bridge Deck Construction

The inspection of installations of rebar and other embedded components in bridge deck construction is a tedious task for field inspectors, requiring considerable field time for measurement and verification against code requirement. The verification of rebar and dowel locations after placement of concrete is another difficult but important task. Ground Penetrating Radar (GPR) is often used to verify the locations of dowels and rebar after the construction of bridge deck is completed. Although GPR is an effective method for this purpose, the discovery of quality problems, if there is any, associated with rebar installations is often too late to secure timely and cost efficient repair. There is a need for proactive quality control and assurance methods that can assist field inspectors to quickly inspect and monitor code compliance of installations of rebar and other embedded components before and during the placement of concrete. In this project, the utility of 3D laser scanning for quality control of bridge deck construction is investigated. The authors demonstrated the common workflow for field scan collection and data analysis for verifying bridge deck construction quality. The authors focused on a set of parameters that need to be monitored during bridge deck construction. The research results suggested that with careful planning and well designed workflow, 3D laser scanning is an effective method for controlling the quality of bridge deck construction, and state departments of transportation (DOTs) should consider incorporating 3D scanning as a proactive quality control method.

• Record URL:
  https://cait.rutgers.edu/files/CAIT-UTC-026-final.pdf
• 
• Supplemental Notes:
  • This research was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  Rutgers University, Piscataway

  Center for Advanced Infrastructure and Transportation, 100 Brett Road
  Piscataway, NJ  United States  08854-8058

  New Jersey Department of Transportation

  1035 Parkway Avenue
  Trenton, NJ  United States  08625

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Gong, Jie
  • Yu, Yi
  • 0000-0002-2553-8603
  • Roda, Andrés M
• Publication Date: 2014-8

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Figures; Photos; References;
• Pagination: 37p

Subject/Index Terms

• TRT Terms: Bridge construction; Bridge decks; Inspection; Lasers; Location; Monitoring; Quality assurance; Quality control; Reinforcing bars
• Uncontrolled Terms: 3-D laser scanning; Workflow
• Subject Areas: Bridges and other structures; Construction; Highways; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01555807
• Record Type: Publication
• Report/Paper Numbers: CAIT-UTC-026
• Contract Numbers: DTRT12-G-UTC16
• Files: UTC, TRIS, RITA, ATRI, USDOT, STATEDOT
• Created Date: Mar 2 2015 10:37AM