Laserfiche WebLink
SlllS h• Tacoma,Washington Designed: OMA Date: 11/1/2022 Project Number: 19,933 <br /> 253-474-9449 <br /> 9449 Checked: CJT Date: 11/4/2022 13 <br /> Project: Emerald Court Carports <br /> MEMBER CHECKS, CONTINUED <br /> DECKING-PURLIN CONNECTION:#12-14 TEK SCREWS @ 9" O.C. <br /> Wind Loading (C&C Zone 3): <br /> i <br /> AT:=4 b 2 Imam+(cant =6 ft2 tribuary area of(1) screw <br /> CN:=—3.3 per Table 30.7-1 <br /> W:=min(gh• G• CN,-16 psf) =-32.7 psf <br /> Loading for Max. Uplift: 0.6D+0.6W <br /> R:=(0.6 D+0.6 W) AT=-114.1 lbf uplift reaction for(1) screw <br /> Allowable Pullover <br /> t/:=0.0179 in <br /> t2:=0.415 in <br /> Fu:=82 ksi <br /> Ppullover`= 135 t1•t2-Fu=304.6 lbf allowable pullover load <br /> —R =37.5% <br /> Ppullover <br /> Allowable Pullout <br /> TABLE 2—ALLOWABLE TENSILE PULL-OUT LOADS(P nor/fl),pounds-force".15'' <br /> Steel F„=45 ksi,Applied Factor of Safety,0=3.0 <br /> Nominal Design Thickness of Member Not in Contact with the Srraw Head(in) <br /> Screw <br /> Designation Diameter <br /> 9 (in.) 0.018 0.024 0.030 0.036 0.048 0.060 0.075 0.105 0.125 0.187 0.250 <br /> 10-16 0.190 44 58 73 87 116 145 182 254 303 s s <br /> 12-14,12-24 0.216 50 66 83 99 132 165 207 289 344 515 689 I <br /> '/4-14,'/4-28 0.250 57 77 96 I 115 153 191 239 l -335 j 398 I 596 I 797 <br /> ForSI:1 inch=25.4 rum,1 lbf=4.45 N,1 ksi=6.89 MPa. <br /> 'For tension connections,the least of the allowable pull-out,pullover,and fastener tension strength found in Tables 2,3,and 5,respectwey,must be used for <br /> design. <br /> ANSI/ASME standard screw diameterswere used in the calculationsand are listed in the tables. <br /> 3The allowable pull-out capacity forother member thickness can be determined by interpolating within the table. <br /> 'to calculate LRFD values,multiply vaijes in tatle by theASD safety factor of 3.0 and multipy again with the LRFD m factor of 0.5. <br /> 'For F„=58 ksi,multipy values by 1.29;for F =65 ksi,mJtipy values by 1.44. <br /> 'Outside drilling capacity limits. <br /> Ppullout:=289 lbf allowable pullout load per Table 2, ESR-1979 <br /> —R <br /> =39.5% <br /> Ppullout <br /> #12-14 TEK SCREWS @ 9" O.C.ARE ADEQUATE <br />