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Member Stress I csults <br /> Access the Member Swi:tinn Stresses spreadsheet by sii ect,ng the Results menu ace then selecting Members ► <br /> Stresses. <br /> 1 hese are the: -1 r.: sir_55 ealci:e,ted a'nni;each eel eTi merr.b r Tree number of sections for which stresses are <br /> reported IS coriir;sired by the Numhrr of Sections smelted on the Glebe' ereeee The actual number of segments is <br /> this Number DI Sections minus 1. the incremental length of each segment is the same For example,d yrru apeciFy 5 <br /> r.rrnnns, the m.tcriber is divided intn 4 wrlual pieces.aed the stresses are reported lot each piece. <br /> There will be tour stress values listen for each section location along the member takrg into account Any reuniter <br /> i.rr'rel.e t he bruin tar the stresses are shawl i et the ton c!each column. At for the sign convent,MI.the signs of these <br /> results correspond to the signs of the forces. These line up as positive or negative according to the member local.txi5 <br /> diiec.tinns. <br /> the dxrdt Stress is the ratio P/A,where P is the section axial Force A positive stress is compressive, slime the sign of <br /> the stress follows the sign.r?t 019%.,r r. <br /> The shear a tress is calculated ae:V/S A.whore S+t ix the eeeriree;resit For members not rtefined with a section <br /> set a value of 1,2 is used for the shear area coeFtuaent SA <br /> The bending stresses are calculated using the tannuar equation fit•c/I,where'll'is the Wilding n,ciin rot, r,'it the <br /> distance hurt the neutral axis to the extreme fiber and't'is the mumenl of inertia 'the stress for the section's extreme <br /> edge ir.listed with respect to the nctitive aril negali a i1 roctlon5 of the t<-tleLe e„ Ceteee.A pxmsitisC Stress is <br /> compressive and n negative stress is tensile <br /> Sorne shapes are not symrr'etricat about both local axes. For example Tee.and Channel shapes Thus the sirens at the <br /> positive and negative gdxr_s may.not be the same. The locations for the calculated Ytreasrrs are illustrated in Ibis <br /> diagram. <br /> Band Top Bend Top <br /> !i 4 <br /> - Bend Hnt Bend Bol <br /> Y Rene Top ,—Bend Top <br /> Y <br /> 7 <br /> - <br /> Bend Bot Bend Bat <br /> So, they lup location is the extreme Fiber of the shape in the positive local y direction,y.bnt is the extreme fiber in the <br /> negative local y direction,etc. The y-top.het stresses are calculated using Mx. <br /> F nr enveloped results the maximum and minimum valve at each location is'fisted. The load combination producing the <br /> roesenurn or minimum is aso lilted,in the"IC column. To include a particular Load Cnmhinatinn in the envelope <br /> analysis,open the Load Combinations spreadsheet and check the box in the"env'column. <br /> Nut* <br /> ▪ A special case is herding stress enicutauoiu Fur single angles. The ricrdinr stye u3is far eril±l;; are reported <br /> liar bending about the principal axes. <br /> • 7 o view the results fora particular member,use the Fine!option 1 o view the maximums and minimums,use the led <br /> option. <br /> WELCOME RAMP CALCS-IBC 2018 Page 17 <br />