Fire-protection engineers and other interested parties have until March 31 to comment on draft guidelines for substantiating a computer fire model for a specific application. The five-step methodology, recently issued by the Society of Fire Protection Engineers for review, has been welcomed by fire-protection and code consultants. “RJA supports the effort to develop a guide that will be a useful tool for the practicing professional that will aid in the communications between fire-protection engineers and the local authorities,” says Martin H. Reiss, president and CEO in the Boston office of RJA Group Inc. He calls the computer simulations valuable tools
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.