The AASHTO Standard Specifications for Highway Bridges allow load factor design (LFD) as an alternative method to allowable stress design for design of simple and continuous beam and girder structures ...

The design examples in Appendix C follow the AASHTO LRFD Bridge Design Specifications (BDS), 9th Edition, 2020, with proposed modifications based on the results from NCHRP Project 12-118. Further ...

Tokyo, Japan – Researchers from Tokyo Metropolitan University have carried out a detailed simulation showing how a common type of bridge fails during large-scale earthquakes. They modeled “I-shaped ...

Add Yahoo as a preferred source to see more of our stories on Google. When what is known as a "tub girder" began coming into use in highway construction in the 1960s and '70s, engineers thought a lot ...

AIT Bridges has launched a composite “tub girder,” a U-shaped beam the company says is lighter, lower-cost and longer-lasting than typical concrete and steel girders. COURTESY / AIT BRIDGES AIT ...

Until March 16, everything was coming together very nicely on the new bridge at 102nd Avenue over Groat Road in Edmonton, Alberta. Two days earlier, the crew from fabricator and erector Supreme Steel ...

Assume that the deck will be supported on four plate-girder stringers, spaced 8 ft 4 in c to c, as indicated in Fig. 12.13. Concrete Slab. The slab is designed, to span transversely between stringers, ...