HomeMy WebLinkAboutENG Cuadra M.A. CORSON & ASSOCIATES, Inc. ARCHITECTURE * STRUCTURAL DESIGN 412 Colorado Ave., Stuart, Fl. 34994 (772) 223-8227 * Lic. #AR91665 To: St. Lucie County - Building & Code Regulation Division Date: July 3, 2020 Re: Henry Cuadra 10680 S. Ocean Dr. Unit 503 (middle) Jensen Beach, FL 34957 It is acceptable to replace existing window opening and mullion bar for the address listed above as follows: 1) S.H. - The PGT Systems Inc. Series "SH 7700A" L.M.I. alum. single hung window has a Florida number NOA-#18-0430.06. The nominal wind speed is 132 mph and the ultimate wind speed is 170 mph. It has a +80 /-110 design pressure and has a large missile "D" approval and HVHZ . 2) MULLION TUBE - The PGT Window Systems - Series "PGT" Clipped Extruded Aluminum Tube Mullion - L.M.I. has a Florida number NOA #17-0630.01. The nominal wind speed is 132 mph and the ultimate wind speed is 170 mph. It has a +170 /-170 design pressure and has a small missile "D" approval and HVHZ . The worst case scenario building design pressures of address listed above in Zone 4 is +58.7 / -63.7 and Zone 5 is +58.7 / -78.5. The building has a type II classification and exposure category "D" for the 6th Edition of the FBC (2017). SCOPE OF WORK: New window with mullion bar replacement DESIGN PARAMETERS AND ASSUMPTIONS USED: 1. DESIGN CODE: Florida Building Code Sixth Edition (2017) with 2020 Supplements using ASCE 7‐10 2. Structure Designed: Enclosed 3. Risk Category: II Exposure Category: D 4. Design Wind Velocity 170 mph End Zone Width: 4 ft 5. Mean Roof Height 80 ft Roof Pitch: 0:12 Parapet: N/A ft 6. Components & Cladding Design Pressures Used: Zone 4: +58.7 / -63.7 P.S.F. & Zone 5: +58.7 / -78.5 P.S.F. Worst case scenario has been calculated. 7. Design Loads: Floor: N/A Roof/Dead: N/A Roof/Live: N/A Balcony: N/A Dock: N/A Deck: N/A Stairs: N/A Fence: N/A Railings: N/A 8. Were Shear Walls Considered For Structure? N/A Not Applicable Explain Why Not: 9. Is A Continuous Load Path Provided? N/A 10. Design Soil Bearing Pressure: N/A Soil Test Reports Submitted? N/A Thank you for your time and consideration. If you have any questions please call. Respectfully, Mark A Corson Mark A. Corson A.I.A., NCARB President