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Project: Everett Mall Canopy <br />Job Number: 23-695 <br />Sheet: of <br />Structural Solutions <br />Name: LAH <br />Originating Office: Tacoma Date: 09/27/21 <br />DESIGN CRITERIA - WIND <br />BASIC WIND SPEED (V): 98 MPH MEAN ROOF HEIGHT: 50 FT <br />RISK CATEGORY: II GROUND ELEVATION FACTOR (Ke): 1.00 <br />EXPOSURE CATEGORY: B ENCLOSURE CLASSIFICATION: Enclosed <br />DIRECTIONALITY FACTOR (K,): 0.85 ROOF TYPE: Monoslope <br />GUST EFFECT FACTOR (G): 0.85 ROOF SLOPE (_:12): 0.5:12 <br />0 (degrees): 2.39 <br />ROOF PRESSURES (Figure 27.3-1 <br />External Pressures (qh*(GC,)): <br />Internal Pressures (fqi*(GC,)) <br />Wind Direction: <br />h/L: <br />Windward (Positive) <br />Windward (Negative) <br />Leeward <br />All Roofs <br />Normal to Ridge for <br />9 >_ 10' <br />50.25 <br />N/A <br />N/A <br />N/A <br />3.0 <br />0.50 <br />N/A <br />N/A <br />N/A <br />z1.0 <br />N/A <br />N/A <br />N/A <br />Normal to Ridge for 0 <br />< 10* and Parallel to <br />Ridge for All 9 <br />Horizontal Distance from <br />Windward Edge g <br />External Pressures <br />(q*(GC.)): <br />Internal Pressures (tq;*(GCp)) <br />Positive Pressure <br />Negative Pressure <br />All Roofs <br />50.5 <br />0 to h <br />-2.6 <br />-12.9 <br />3.0 <br />h to 2h <br />-7.2 <br />>2h <br />-4.3 <br />>_1.0 <br />0 to h/2 <br />-2.6 <br />-18.7 <br />>h/2 <br />-10.1 <br />ASCE 7-16 CHAPTER 27: WIND LOADS ON BUILDINGS: MWFRS (DIRECTIONAL PROCEDURE) <br />PART 1: ENCLOSED AND PARTIALLY ENCLOSED BUILDINGS OF ALL HEIGHTS <br />HORIZONTAL WALL PRESSURES (Figure 27.3-1) <br />Windward External Pressures (q�*(GCP)): <br />Leeward & Sidewall External Pressures (%*(GC,)): <br />Internal Pressures (tqi*(GC,J) <br />Height Above <br />Ground Level, z <br />Windward <br />wall <br />L/B: <br />Leeward wall <br />Sidewall <br />All walls <br />15 <br />1.00 <br />8.1 <br />0-1 <br />-7.2 <br />-10.1 <br />3.0 <br />20 <br />1.00 <br />8.8 <br />2 <br />-4.3 <br />25 <br />1.00 <br />9.4 <br />Z4 <br />-2.9 <br />30 <br />1.00 <br />9.9 <br />NOTES: <br />1) Minimum Design Wind Loads (Per ASCE 7-16 27.1.5): The wind load used for <br />design of the MWFRS shall not be less than 16 PSF multiplied by the wall area of the <br />building, and 8 PSF multiplied by the roof area of the building projected on a vertical <br />plane normal to the assumed wind direction. Wall and roof loads shall be applied <br />simultaneously. <br />2) q, has conservatively been taken equal to % <br />Kht= 1.00 <br />qh= 16.9 PSF <br />40 <br />1.00 <br />10.8 <br />50 <br />1.00 <br />11.5 <br />60 <br />1.00 <br />12.1 <br />70 <br />1.00 <br />12.6 <br />80 <br />1.00 <br />13.2 <br />90 <br />1.00 <br />13.6 <br />100 <br />1.00 <br />14.1 <br />120 <br />1.00 <br />14.8 <br />140 <br />1.00 <br />15.5 <br />160 <br />1.00 <br />16.1 <br />180 <br />1.00 <br />16.6 <br />200 <br />1.00 <br />17.1 <br />250 <br />1.00 <br />18.2 <br />300 <br />1.00 <br />19.2 <br />350 <br />1.00 <br />20.0 <br />400 <br />1.00 <br />20.9 <br />450 1 <br />1.00 <br />21.6 <br />500 1 <br />1.00 <br />22.2 <br />Design Criteria - IBC2018 - Revised 04/12/21 23695 Design Criteria 2023-09-27 lah(Wind MWFRS) <br />