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Structural Calculations <br />DESIGN NARRATIVE <br />Project Description <br />This project consist of the installation of hypar sail shade structure with a fabric top. The fabric <br />is connected via sleeve connections to the column. The shade membrane is attached by a <br />cable along the perimeter, with pretension of a minimum 100 lbs. <br />The wind tunnel analysis procedure was used for this structure with a Vult=105 mph. <br />The snow solution is analyzed for the complete structure, frame with fabric shade, with a <br />ground snow load of 5 PSF. <br />The shade structure will be analyzed using the following loads and procedures according to <br />the codes listed below. <br />CODES AND REFERENCES¨ <br />-ASCE 7-16 Minimum Design Loads for Buildings and Other Structures <br />-2022 CBC <br />COMPUTER PROGRAMS USED <br />RFEM 5 <br />RISA Foundation 9 <br />MATERIALS SPECIFICATIONS AND STRENGTHS <br />Structural Steel - (Unless Noted Otherwise in Drawings) <br />Structural Steel Tubes HSS ASTM - A500, Grade B/C <br />Plates ASTM - A36, or ASTM - A572, Grade 50 <br />Base Plates ASTM - A36 <br />Anchor Bolts in Concrete or Masonry ASTM - F1554, Grade 36 <br />Welding Electrodes ASTM - E70xx (U.N.O.) <br />Load Values: <br />Wind Load: 105 MPH <br />Ground Snow Load: 5 PSF <br />Dead Loads: (self weight calculated by the software) <br />August 2025 <br />............................................................................................................................ <br />Page 2