The International Building Code (IBC) requires that critical systems and components must not only maintain structural integrity during an earthquake, but also remain operational and continue to carry out their primary functions (per 2015 IBC Chapter 17).
To ensure the highest quality in the HEAVY DUTY INDUSTRIAL (HDI) product line, HIPOWER SYSTEMS used for its seismic certiﬁcation, an independent Earthquake Simulator Laboratory - The Paciﬁc Earthquake Engineering Research Center (PEER) Lab at the University of California in the city of Berkeley, CA.
There, the Heavy Duty Industrial Diesel Standby units were put to the test and undergo different conﬁgurations on the Earthquake Simulator Shaking Table to make sure the gen-sets will survive seismic events.
The Earthquake Shaking Table from the PEER-UC Berkeley Lab, was the ﬁrst modern Shaking Table and is still the largest six-degree-of-freedom (6 DOF) Shaking Table in the United States. The Shaking Table is conﬁgured to produce three translational components of motion; vertical and two horizontals, plus three rotational components; pitch, roll and yaw. These 6 DOF can be programmed to reproduce any wave form within the capacities of force, velocity, displacement, and frequency of the Shaking Table system. Seismic analysis are evaluated per ASCE 7-16 with a maximum Sds value of 2.0, z/h=1.0 (roof level) and SDS of 2.5, z/h=0.0 (on grade), for equipment having an Importance Factor (Ip) of 1.5. This correlates with the maximum force level requirements according to ICC-ES AC-156.
“From an engineering point of view, it is extremely important that our product line holds up to events such as major earthquakes without fail. Our HDI Diesel Standby series has been designed to function and maintain operational conditions after a catastrophic seismic event.” - said Javier Ortin, Director of Engineering at HIPOWER SYSTEMS