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Member Stress Results <br /> Access the. Member Sue lion Stresses spreadsheet ty str.ec,.ng t^e Results menu a`1C tnen selecting Members ► <br /> Stresses <br /> these are tl ie:__I_ 5:::calcuteted eIn1ir each dLaif,member Trtc number Of sections for which stresses are <br /> reported is cord rotted by the Number 01 Sections specified on the G1cihra , _. The actual number of segments is <br /> this Number fat Sections minus 1. the incremental length at each Segment is the same For example,it you shecdy h <br /> nett ions, ihu rru:IruLe•is divided into 4 squat pieces.ar.d the stresses are reported for each piece. <br /> There will be tcu,r stress values listen for each section location along the rru mhcr taking Into account any a r.ili,rr <br /> i,rl...A- the toot:for the stresses are show!'at tire tan of each column. A:for the sign convention.the signs at there <br /> results correspond to the signs of the forces. These tine up as poSltwe or negative according to the member local axis <br /> directions. <br /> the axial stress is the ratio PIA,where P is the section axial force, A positive stress is compressive, some the sign nt <br /> the stress follows the sign r t the j;,r;,. <br /> The ahr-ar stress Is calculated as V/S A.whore S A is the elective;hc:a :w, For members not defined with a section <br /> set a value of 1.2 us used for the shear area coefficient SA <br /> The bending stresses erre calculated using the familiar equation M•c/I,where"Mt is the betiding nniment,'c:'is the <br /> distance front the neutral axis to the exlrensc fiber and't'is the moment of inertia The stress for the section's extreme <br /> 'Ago Is listed with respect to the aositive ar.1 negative direCt.lon5 Of the Iocai, t;"!i C.1.:‘.. ._.A pcistbre StreSS IS <br /> compressive end it negative stress is tensile <br /> Some shapes are not symmetrical about both local axes. for example Tee and Channel shapes Thus the stress at the <br /> positive and neeative c,deeis may not be the same The locations for the calculated stresses arc itiustrated in this <br /> diagram. <br /> Y —Bred Tap Bend Top <br /> C Y <br /> z t <br /> `-- It end Hot —Bond Rot <br /> Y Bend Top re:.—Bend Top <br /> Yt <br /> i <br /> Z ♦F =.J <br /> Z+-' <br /> Bend Bat "---Rend Dot <br /> So, they top location is the extreme libel o'the shape in the positive local y direction,yhut is the extreme fiber in the <br /> negative local y direction,etc. The y lop.bot stresses are calculated using Mz. <br /> F in enveloped results the maximum and minimum value at each location is Nailed. The load combination producing the <br /> reaaimi,rn or minimum is also listed, in the tict coirmn. To include a particular Load Combination in the iinvclopc <br /> analysis,open the Load Combinations spreadsheet and check the box in the"Env'column <br /> Nuts <br /> A special case is bending arrest,c::lcutations fur single angles the¢cinJing stresses fc. :,cngfi-iliCatOS are reported <br /> ler bending about the principal axes. <br /> • 1 o view the results fora particular member,'rse the Find epton to view the maximums and minimums,use i►ietr.' <br /> opt ion. <br /> WELCOME RAMP CALCS-IBC 2018 Page 17 <br />