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<br />IX.) Overall Moment Stability (Overturning):
<br />
<br />Resisting Moment:
<br />
<br />Dead loads above slab:
<br />Roof area:
<br />Dead Weight:
<br />Total Weight =
<br />
<br />Exterior Walls:
<br />
<br />Wall height:
<br />Unit weight:
<br />
<br />Total Weight =
<br />
<br />Interior Walls:
<br />
<br />Wall height:
<br />Unit weight:
<br />Total Weight =
<br />
<br />Total Resisting Dead Load (W) :
<br />
<br />Dead Load Moment Arm ( I ) :
<br />Resisting Moment (RM) =
<br />
<br />Overturning Moment:
<br />U rft
<br />
<br />Sanchez Residence
<br />
<br />W(I)
<br />
<br />2017,0 sf
<br />11.8 psf
<br />23800,6 lbs
<br />
<br />(Neglect overhang; conservative)
<br />
<br />23800,6
<br />
<br />188,0 If
<br />
<br />8,0 ft
<br />45,0 psf( SBC Appendix A)
<br />
<br />67680,0 lbs
<br />
<br />67680,0
<br />
<br />150.4 If
<br />
<br />8,0 ft
<br />8,0 psf( SBC Appendix A)
<br />9625,6 lbs
<br />
<br />9625,6
<br />101106,2 lbs
<br />
<br />Total Resisting Dead Load =
<br />
<br />101106,2 lbs
<br />
<br />19,665 ft, Width / 2
<br />1988,3 ft-kips
<br />
<br />U(I) + P(h)
<br />
<br />JplI
<br />Height: 0-15 15-20 20-40 40-60
<br />Roof area: 2017,0 0,0 0.0 0,0
<br />Gross Uplift : -21.0 -23,0 -28,0 -31.0
<br />Total Uplift (U) = -42357.0 0,0 0.0 0,0
<br />Moment Arm (I) : 19,7 19.7 19,7 19,7
<br />Uplift Moment = -833,0 0,0 0,0 0.0
<br />
<br />Horizontal Pressure:
<br />
<br />sf
<br />psf
<br />lbs
<br />ft
<br />ft-kips
<br />
<br />Height: 0-15 15-20 20-40 40-60
<br />Pressure: 31.5 34,5 42,0 46,5
<br />Contrib, Height: 15,0 3,3 -1.7 -21. 7
<br />Total hz, Pressure = 472,5 114,9 0,0 0,0
<br />Moment Arm (I) : 7,5 16.7 19.2 29.2
<br />Unit Pres, Moment= 3,5 1.9 0,0 0,0
<br />Hz, Pres, Moment = 193,7 104,7 0,0 0.0
<br />
<br />sf
<br />If
<br />lbs/lf
<br />ft
<br />ft-kip
<br />ft- .
<br />
<br />Page 6
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