The Office of Metropolitan Architecture, Rotterdam, and multidisciplinary engineer Arup, designers of the $733-million Television Cultural Center in Beijing, are declining to comment on the damage to the primarily concrete-framed building as a result of a dramatic Feb. 9 blaze that engulfed all 31 stories and killed one firefighter. But a city official says the basic structure is intact and most of the damage from the five-and-a-half-hour fire is affected only the exterior surface of the walls. Slide Show Photo: AP/Wideworld Observers speculate titanium-zinc alloy may have fueled fire on outside of tower. The fire at the 159-meter-tall TVCC tower,
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.