The Metraflex Company has developed the Seismic BreakAway Coupling. The company says the product is a solution for hanger rods that are too short and do not allow for the full-rated movement of seismic expansion loops during seismic events.
On April 17, 2012, a team of researchers at the University of California, San Diego (UCSD) performed a shake table test on a full-size building with a Baltimore Aircoil Company (BAC) PT2 Cooling Tower.
As I read the press release, something about the DOE’s planned user test bed facility at Lawrence Berkeley National Lab reminded me of the old Wendy’s commercial from the ’80s that most of you are, uh, mature enough to recall.
Earthquakes and strong gusts are threats in the physical world that creep into the HVAC design world of isolators, supports, and special louver considerations. Furthermore, a new legal world in terms of codes, insurance, and liability can leave inattentive engineers, owners, and manufacturers quaking in their boots. Read on to stay safe in more ways than one.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.