Global changes, such as population growth, rising sea level and energy demand, create challenges for civil engineers. And advances in data sensing, and analysis can help address them—but researchers must concentrate on significant needs to make useful contributions.“We see so many people doing research that doesn't help anyone,” laments Ioannis Brilakis, an assistant professor in civil engineering at Georgia Institute of Technology, Atlanta. His research focuses on use of computers and information technology in construction.Inspired by a 2008 survey about engineering challenges for the 21st Century, Brilakis decided to use a scientific approach to identify challenges facing civil engineering that
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.