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• • <br /> GENERAL STRUCTURAL NOTES: <br /> 1. ALL MATERIALS,WORKMANSHIP,DESIGN,AND CONSTRUCTION SHALL CONFORM TO <br /> THESE NOTES AND THE INTERNATIONAL BUILDING CODE(IBC),2018 EDITION. <br /> 2. DESIGN LOADING CRITERIA: <br /> OCCUPANCY CATEGAORY. . . II <br /> ROOF LIVE LOAD 25 PSF(Is= 1.0) <br /> MECHANICAL UNIT 876 POUNDS <br /> EARTHQUAKE SDS= 1.14 <br /> SITE CLASS C <br /> WIND 98 MPH,EXPOSURE B,KZt= 1.0 <br /> 3. STRUCTURAL CALCULATIONS AND DRAWING SHALL BE USED IN CONJUNCTION <br /> WITH MECHANICAL DRAWINGS FOR BIDDING AND CONSTRUCTION. CONTRACTOR <br /> SHALL VERIFY DIMENSIONS AND CONDITIONS FOR COMPATIBILITY AND SHALL <br /> NOTIFY ENGINEER OF ALL DISCREPANCIES PRIOR TO CONSTRUCTION. <br /> 4. CONTRACTOR SHALL VERIFY ALL EXISTING DIMENSIONS,MEMBER SIZES, <br /> LOCATIONS OF THE UNIT RELATIVE TO THE EXISTING FRAMING,AND CONDITIONS <br /> PRIOR TO COMMENCING ANY WORK. ALL DIMENSIONS OF EXISTING CONSTRUCTION <br /> SHOWN ON THE DRAWING ARE INTENDED AS GUIDELINES ONLY AND MUST BE <br /> VERIFIED. IF THE EXISTING CONDITIONS DO NOT CLOSELY MATCH THE CONDITIONS <br /> SHOWN ON THE SKETCHES,OR IF THE EXISTING MATERIALS ARE OF QUESTIONABLE <br /> OR SUBSTANDARD QUALITY,NOTIFY THE ENGINEER PRIOR TO COMMENCING ANY <br /> WORK. <br /> 5. CONTRACTOR SHALL PROVIDE TEMPORARY BRACING FOR THE STRUCTURE AND <br /> STRUCTURAL COMPONENTS UNTIL ALL FINAL CONNECTIONS HAVE BEEN <br /> COMPLETED IN ACCORDANCE WITH THE DRAWINGS. <br /> 6. SHEET METAL SCREWS SHALL BE ITW BUILDEX TEKS SELECTTM SELF-DRILLING <br /> STRUCTURAL FASTENERS OR AN APPROVED EQUAL. <br /> 7. WOOD SCREWS SHALL CONFORM TO ANSI/ASME STANDARD B18.6.1. <br /> 8. VERIFY THE CONNECTION OF THE EXISTING METAL CURB TO THE WOOD ROOF <br /> STRUCTURE. CONNECTION SHALL BE A MINIMUM OF#12 WOOD SCREWS AT A <br /> MAXIMUM SPACING OF 18"ON-CENTER ON EACH SIDE OF THE UNITS. SUPPLEMENT <br /> THE EXISTING CONDITIONS AS REQUIRED TO MEET THIS REQUIREMENT WITH#12 x 3" <br /> LONG WOOD SCREWS. <br /> 9. CONNECT THE METAL CURB ADAPTER TO THE EXISTING METAL CURB WITH#12 <br /> SHEET METAL SCREWS AT A MAXIMUM OF 18"ON-CENTER ON EACH SIDE OF THE <br /> UNIT. PLACE ONE SCREW AT 6"TO 8"FROM EACH CORNER OF THE UNIT AND THE <br /> REMAINING SCREWS APPROXIMATELY EQUIDISTANT BETWEEN THE CORNERS. <br /> 10. CONNECT THE UNIT TO THE METAL CURB ADAPTER WITH FOUR(4)#12 EQUALLY <br /> SPACED SHEET METAL SCREWS ON EACH SIDE OF THE UNIT. PLACE ONE SCREW AT <br /> 6"TO 8"FROM EACH CORNER OF THE UNIT AND THE REMAINING SCREWS rl <br /> APPROXIMATELY EQUIDISTANT BETWEEN THE CORNERS. cu <br /> a <br /> / i � <br />