CME’s Chief Technology Officer, Michael P. Culmo, was featured in this month’s TR News Magazine – The Development of National Specifications for Accelerated Bridge Construction (ABC).
Mr. Culmo discusses how ABC technology has fundamentally changed the way bridges are built, with construction times reduced from years to weeks—even days. The TRB General Structures Committee coordinated with the AASHTO Bridge Technical Committee on Construction, or the AASHTO T-4 Committee, to formulate a research needs statement (RNS) for the development of a national ABC design and construction specification. The committees also developed RNSs for two particular ABC-related issues that needed further research.
This effort led to two National Cooperative Highway Research Program (NCHRP) research projects: NCHRP Project 12-102, which developed a national ABC design and construction specification, and NCHRP Project 12-98, which studied tolerances in prefabricated elements and the dynamic effects of moving entire bridges from prefabrication staging areas to the actual bridge sites (a common ABC technology) – both of which were awarded to CME.
The NCHRP 12-98 research focuses on the need for a national specification for tolerances of prefabricated elements and owner agency concerns with the dynamic effects of moving entire bridges using self-propelled modular transporters (SPMTs) or lateral slide technologies. To learn more and read the full article, click here.
TR News is copyright, National Academy of Sciences, Engineering, and Medicine; posted with permission of the Transportation Research Board.