Recommended Guidelines for Prefabricated Bridge Elements and Systems Tolerances and Recommended Guidelines for Dynamic Effects for Bridge Systems

This report documents the results of two studies. The first study led to the development of guidelines for tolerances for prefabricated bridge elements and systems (PBES). The tolerance guidelines were developed based on a synthesis of current industry practice. Statistical methods were developed to analyze fabrication data for future specification development. A statistical method was developed to account for multiple tolerances factoring into joint width and connection tolerances between prefabricated elements. Monte Carlo simulations were completed in order to establish probability adjustment factors for these tolerances. To complete the work, a tolerance guideline was developed in standard AASHTO format. The second study involved dynamic effects of accelerated bridge construction (ABC) bridge systems. These include dynamic friction effects of lateral bridge slides and dynamic effects for self- propelled modular transporters (SPMT) bridge moves. Various common sliding systems were testing in the laboratory, which led to the development of recommended specifications for design and construction of these systems. Full scale testing was completed for SPMT bridge moves. The hypothesis for the research was to treat an SPMT move as a man-made earthquake. Upper bound dynamic effects were measured on an actual SPMT with various levels of load applied. Based on the results, a dynamic response spectrum was developed for horizontal and vertical dynamics. A design method was then developed, which was included in a guideline document written in standard AASHTO format.

• Record URL:
  http://www.trb.org/Main/Blurbs/177187.aspx
• Authors:
  • Culmo, Michael P
  • Halling, Marvin W
  • Maguire, Marc
  • Mertz, Dennis
• Publication Date: 2017-12

Language

• English

Media Info

• Media Type: Web
• Edition: Contractor's Final Report
• Features: Appendices; Figures; References; Tables;
• Pagination: 177p
• Serial:
  • NCHRP Web-Only Document
  • Issue Number: 243
  • Publisher: Transportation Research Board

Subject/Index Terms

• TRT Terms: Bridge construction; Bridge design; Bridge members; Dynamic structural analysis; Engineering tolerance; Guidelines; Prefabricated bridges; Simulation; Sliding friction; Statistical analysis
• Identifier Terms: AASHTO LRFD Bridge Construction Specifications; AASHTO LRFD Bridge Design Specifications
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 01659598
• Record Type: Publication
• Report/Paper Numbers: NCHRP Project 12-98
• Files: TRIS, TRB, ATRI
• Created Date: Feb 8 2018 9:08AM