2131 LAKE HEIGHTS DR 2021-09-07 - Laserfiche WebLink

Dibble Engineers, Inc. JOB TITLE Bethany at Silver Crest-Kitchen Remodel 1029 Market Street,Suite 200 Kirkland,WA 98033 JOB NO. 20-228 SHEET NO. (425)828-4200 CALCULATED BY LAP DATE CHECKED BY DATE Seismic Loads - cont. : Strength Level Forces Seismic Design Category(SDC)= D le= 1.00 CONNECTIONS Sds= 0.939 Force to connect smaller portions of structure to remainder of structure Fp=0.133Sdswp= 0.125 wp or Fp=0.05wp= 0.05 wp Use Fp= 0.12 wp wp=weight of smaller portion Beam,girder or truss connection for resisting horizontal force parallel to member Fp=no less than 0.05 times dead plus live load vertical reaction Anchorage of Structural Walls to elements providing lateral support Fp= not less than 0.2KaleWp Flexible diaphragm span Lf= Enter Lf to calculate Fp for flexible diaphragm Fp=0.4SdskaleWp=0.376 Wp,but not less than 0.2Wp (rigid diaphragm) ka= 1 Fp= 0.376 Wp but Fp shall not be less than 5 psf MEMBER DESIGN Bearing Walls and Shear Walls(out of plane force.). Fp=0.4SdsleWw= 0.376 wW but not less than 0.10 ww Use Fp= 0.38 wW Diaphragms Fp=(Sum Fi/Sum Wi)Wpx+Vpx= (Sum Fi/Sum Wi)Wpx+Vpx need not exceed 0.4 SdsleWpx+Vpx= 0.376 Wpx+Vpx but not less than 0.2 SdsleWpx+Vpx= 0.188 Wpx+Vpx ARCHITECTURAL COMPONENTS SEISMIC COEFFICIENTS Architectural Component: Signs and Billboards Importance Factor(Ip): 1.0 Component Amplification Factor(ap)= 2.5 h= 29.1 feet Comp Response Modification Factor(Rp)= 3 z= 12.0 feet z/h= 0.41 Fp=0.4apSdslpWp(1+2z/h)/Rp= 0.571 Wp not greater than Fp= 1.6SdsIpWp= 1.503 Wp but not less than Fp=0.3SdsIpWp= 0.282 Wp use Fp= 0.571 Wp MECH AND ELEC COMPONENTS SEISMIC COEFFICIENTS Seismic Design Category D&Ip=1.0,therefore see ASCE7 Section 13.1.4 for exceptions Mech or Electrical Component: Other mechanical or electrical components. Importance Factor(Ip): 1.0 Component Amplification Factor(ap)= 1 h= 29.1 feet Comp Response Modification Factor(Rp)= 1.5 z= 12.0 feet z/h= 0.41 Fp=0.4apSdslpWp(1+2z/h)/Rp= 0.457 Wp not greater than Fp=1.6SdslpWp= 1.503 Wp but not less than Fp=0.3SdslpWp= 0.282 Wp use Fp= 0.457 Wp