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Member Stress Results <br /> Access the Member Section Stresses spreadsheet by selecting the Results ntenti and then selecting Members <br /> Stresses. <br /> These are the rrarntgr stresses,calculated along each Act Acta member. The number of sections for which stresses we <br /> reported is controlled by the Number 01 Sections speclged an the Glottal etr -"el The actual number of segments is <br /> this Number:01 Sections minus 1. The incremental length of each segment is the same. For example,if you specify 5 <br /> teetlonn,the member is divided lrrto 4 equal pieces,and the stresses are reported for each piece. <br /> There will be four stress values listed for each secttore location along the member taking into account any t+' meet. <br /> n6tsrxl1s• 'fhb gnite for the stresses ale shown et the top of each column, As for the sign convention,the signs of these <br /> results correspond to the signs of the forces, These line up as positive or negative according to the member lot ril axis <br /> directions. <br /> The axial stress is the ratio P/A,where P is the sachem axial force, A positive stress is compressive,aim a the sten of <br /> the Stress follows the t r 'eta <br /> The sheer stress rs calculated as Y/S.A:,whore S.A.is the effective shear<rra F©r members not defined with a section <br /> set a value oil.2 is used for the shear area coefficient SR. <br /> The bending strresee s arc calculated stating the familiar equation M"e/I,whora'M la the betiding moment,*c.`is the <br /> distance frorta the neutral axis to the extreme fiber and'f is the moment cf inertia_ TM stress for the section's extreme <br /> edge is listed with respect to the positive and negative directions of the heal u&eat e cles,A positive stress is <br /> compressive anda 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 /> preetive and negative edges may not be the same. The locations for the calculated stresses are illustrated to Ites <br /> diagram; <br /> Y "—Bend Top Bend TOP <br /> r11"41 Y <br /> z .. . <br /> Bend Bet Bend Rol <br /> Y Bend Top Bend Top <br /> Y <br /> t <br /> 11 z <br /> Band Bet Bend Bat <br /> So,the ytop location is the extreme fiber of the shape in the positive local y direction,ybol is the extreme fiber in the <br /> negative local y direction,etc. The ytop.bot stresses are calculated using Mz, <br /> for enveloped results the maximum and minimum value at each location is listed, The load combination producing the <br /> maximum or minimum is also listed,In the"te"column. To include a particular Load comhinelinn in the envelope <br /> analysis,open the Load Combinations spreadsheet and check the box in the"Env column, <br /> Note <br /> A special case is bending stress calculation for single angles. The Vendini sots its,frr,g,irisrj9 i:rrr'lee. are reported <br /> for bending about the principal axes, <br /> • To view the results for a particular member,use the Fig option. To view the maximums and reinime ns,use the nr <br /> option,. <br /> WELCOME RAMP CALCS-IBC 2018 Page 17 <br />