Laserfiche WebLink
HOWIE BARGREEN I May 10, 2022 I SDA Job# 7673 I 7 <br /> Lateral Calculation Key-for Shearwalls Only(See attached calcs for other lateral load resisting system designs) <br /> 1P2 <br /> V <br /> V=Shear,plf <br /> H=Height of shearwall <br /> L=Length of shearwall <br /> P1 =Weight of shearwall and connected framing <br /> P2=Weight of adjacent wall <br /> 1151 <br /> *T=V x H -0.5P1 P2=Tension reaction to be resisted by holdown <br /> TIt IC C=V x H+0.5P1 =Compression reaction <br /> `Holdown tension load supporting roof framing includes wind uplift from'Zone G'&'Zone H' <br /> ASD Basic Load Combinations <br /> For calculation of tension and compression forces in compliance with ASCE 7-16 2.4.1 <br /> Tension Equations(Uplift) <br /> 7.0.6D+0.6 W <br /> 8**.(0.6-0.14SDS)D+0.7Emh <br /> 10.0.6D-0.7Ev+0.7Eh <br /> 10*.0.6D-0.7Ev+0.7Emh <br /> Compression Equations <br /> 5.D+0.6W <br /> 5**(1+0.14SDS)D+0.7Emh <br /> 6.D+0.75L+0.75(0.6W)+0.75S <br /> 6b**(1+0.105SDS)D+0.525Emh+0.75L+0.755 <br /> 8.D+0.7Ev+0.7Eh <br /> 8*D+0.7Ev+0.7Emh <br /> 9 D+0.525Ev+0.525Eh+0.75L+0.75S <br /> 9*D+0.525Ev+0.525Emh+0.75L+0.75S <br /> LRFD Basic Load Combinations (Where Applicable) <br /> For calculation of tension and compression forces in compliance with ASCE 7-16 2.3.1 <br /> Tension Equations(Uplift) <br /> 5.0.9D+W <br /> 7.0.9D-Ev+Eh <br /> 7*.0.9D-Ev+Emh <br /> 7**.(0.9-0.2SDS)D+Emh <br /> Compression Equations <br /> 4.1.2D+1.6W+L+0.5S <br /> 5**.(1+0.2SDS)D+Emh+L+0.2S <br /> 6. 1.2D+Ev+Eh+L+0.2S <br /> 6*. 1.2D+Ev+Emh+L+0.2S <br /> Load Symbol Legend: Abbreviation Symbol Legend: <br /> D-Dead load HD-HOLDOWN <br /> L-Live load <br /> S-Snow load <br /> W-Wind load <br /> SDS-Design spectral response acceleration <br /> Eh-Effect of horizontal seismic forces <br /> Ev-Effect of vertical seismic forces <br /> Em-Effect of horizontal seismic forces,including overstrength <br /> Emh-Vertical seismic load effect <br /> Shear Wall Coefficient Legend: (see"SEGMENTED SHEAR WALL DESIGN"pages) <br /> WL FACTOR-Factor for increasing seismic capacity to wind load capacity per SDPWS-2015 T4.3A. <br /> ASPECT RATIO-Full-height segmented shear wall reduction factor per SDPWS-2015 4.3.3.4.1.Shear walls with similar stiffness per 4.3.4.2. <br /> TOTALADJ.LENGTH-Sumation of shear wall segments widths adjusted with aspect ratio(as required). <br /> S.G.-Specific Gravity Adjustment Factor for Hem-Fir Framing(may be increased to 1.0 for Douglas-Fir framing). <br /> ASD-Allowable Stress Design load combination factor. <br /> ALLOWED UNIT SHEAR-Unit shear capacity per SDPWS-2015 T4.3A.Shear values adjusted with FACTOR OF SAFETY per 4.3.3. <br /> WIND CAPACITY-Ultimate shear value calculated per:WL FACTOR x S.G.x UNFACTORED SHEAR CAPACITY/(FACTOR OF SAFETY x ASD). <br /> SEISMIC CAPACITY-Ultimate shear value caulated per:S.G.x UNFACTORED SHEAR CAPACITY/(FACTOR OF SAFETY x ASD). <br /> L_ <br />