Laserfiche WebLink
Structural <br />Engineering & Design Inc. <br />N I HAL <br />Project: THE DOT PRINTER <br />CITY OF SANTA ANA <br />Planning and Building Agency <br />Approved <br />FOR PERMIT ISSUANCE <br />Downaisle Seismic Loads Configuration: TYPE 1 SELECTIVE RACK Date: <br />Determine the story moments by applying portal analysis. The base plate is assumed to provide no fixity. <br />Seismic Story Forces <br />1-7 <br />Typical (fame made <br />Vlong= 762lb Tribufaryarea oftwocolumns <br />VCOI=Vlong/2= 381 lb ofrackNme <br />F1= 19lb <br />0 0 <br />F2= 141 lb � ``' `' � 0 Typical Frame made <br />F3= 243 lb [[';''�' `/ - two columns <br />-- — — <br />'' TopV <br />ro f �ew V w <br />_Seismic Story Moments Conceptual System <br />COL <br />Mbase-max= 0 in -lb <=== Defauitcapacity hi-eff= hi - beam clip height/2 <br />Mbase-v= (Vcol*hieff)/2 = 6 in <br />= 1,143 In -lb <__= Moment going to base Vcol <br />Mbase-eff= Minimum of Mbase-max and Mbase-v <br />= 0 in -lb PINNED BASE ASSUMED <br />M 1-1= [Vcol * hleff]-Mbase-eff M 2-2= [Vcol-(Fi)/2] * h2 <br />= (381 lb * 6 In)-0 in -lb = [381 lb - 70.3 Ib]*57 in/2 <br />= 2,286 in -lb = 10,585 in -lb I <br />Mseis= (Mupper+Mlower)/2 <br />Mseis(1-1)= (2286 in -lb + 10585 in-lb)/2 Mseis(2-2)= (10585 in -lb + 7228 in-lb)/2 <br />= 6,435 in -lb = 8,906 in -lb <br />Beam to Column <br />Elevation <br />rho= 1.0000 <br />i <br />Summary of Forces <br />LEVEL <br />hi <br />Axial Load <br />Column Moment** <br />Mseismic** <br />Mend -fixity <br />Mconn** <br />Beam Connector <br />1 <br />9 in <br />4,520 lb <br />2,286 in -lb <br />6,435 in -lb <br />1,148 in -lb <br />5,308 in -lb <br />3 pin OK <br />2 <br />57 in <br />3,390 lb <br />10,585 in -lb <br />8,906 in -lb <br />1,148 in -lb <br />7,038 in -lb <br />3 pin OK <br />3 <br />48 in <br />2,260 lb <br />7,228 in -lb <br />6,087 in -lb <br />1,148 in -lb <br />5,064 in -lb <br />3 pin OK <br />4 <br />55 in <br />1,130 lb <br />4,946 in -lb <br />2,473 in -lb <br />1,148 in -lb <br />2,535 in -lb <br />3 pin OK <br />Mconn= (Mseismic + Mend-fixity)*0.70*rho <br />Mconn-allow(3 Pin)= 17,768 in -lb <br />**all moments based on limit states level loading <br />TYPE 1 rvd Page t of 1 W 7/31/2025 <br />