SFPE WEBINAR: Troubleshooting Exit & Elevator Shaft Pressurization System Designs
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Troubleshooting Exit & Elevator Shaft Pressurization System Designs Presented by Warren Bonisch, P.E., Associate Principal, Wiss, Janney, Elstner Associates (WJE) SFPE MEMBER FEE: FREE NON-MEMBERS FEE: $29

4/8/2019
When: Monday, April 8, 2019
11:00 AM
Where: Virtual
United States


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SFPE MEMBER FEE: FREE

NON-MEMBERS FEE: $29


Troubleshooting Exit & Elevator Shaft Pressurization System Designs

Presented by Warren Bonisch, P.E., Associate Principal, Wiss, Janney, Elstner Associates (WJE)

At the direction of the local fire marshal, a third party review was conducted of a design engineer’s exit stair and elevator pressurization system design drawings and calculations for a multi-building, high rise office complex. Each of the engineer’s assumptions and design parameters were reviewed and evaluated, with the finding that the design air flows used were based upon an incorrect code interpretation. Computer modeling was performed, using SFPE recommended values, to provide guidance to the engineer. As time quickly passed, the building was approaching completion, the pressurization equipment was already ordered, on site and being installed. Subsequent computer modeling was then performed using actual as built data collected by the design engineer, which indicated the need for much more cfm than what initially modeled and significantly more than originally designed by the engineer. Problem resolution was further complicated by additional regulations from a separate code authority that further increased the need for more cfm’s.

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