Features
By W. Denney Pate, P.E., M.ASCE, and W. Jay Rohleder, Jr., P.E., S.E., M.ASCE
A new cradle system conveys stay cables through pylons without allowing the individual strands to touch one another, a significant boost for the longevity of cable-stayed bridges. Perhaps as important, the method opens the door to longer spans and more elegantly shaped pylons that can help communities create signature bridges.
By Robert L. Reid
Boston’s Logan International Airport has nearly completed its $4.4-billion modernization program, a complex undertaking that has included the construction of one new terminal and the significant expansion of another, as well as additional parking facilities and a revamped, bilevel access road system.
By Anthony Fuller, P.Eng., John Westland, P.Eng., Paul M. Blakita, M.ASCE, and Vince Tzambazis
Subsidence beneath a transformer at an important Canadian power-generating facility required a delicate and precise grouting solution. The project succeeded despite a crowded site and tight deadlines, thanks in part to thorough planning, precise monitoring, and accurate control of grout injection.
By He-Ping Yang, Jian-Long Zheng, Ph.D., and Rui Zhang
When expansive soils led to landslides along one of the most important highway projects in southern China, researchers stepped in to analyze the causes and develop several innovative techniques for stabilizing embankments and cut slopes using a combination of additives and geogrids.
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