If an axially loaded compression member has a value of the maximum slenderness ratio K*L*12/r >200,.Value of 1.333 may be used for load combinations which include wind or seismic loads. It is used and appears ONLY in the stress ratio calculation. This calculator utilizes an 'Allowable Stress Increase Factor' (ASIF) which is a multiplier of any of theĬalculated allowable stresses Fa, Fbx, and Fby and also the Euler column buckling stresses F'ex and F'ey.In this calculator for members subjected to known loadings consisting of axial load (compression or tension)Īnd/or uniaxial or biaxial bending, both the actual and allowable stress are computed, with the final resultīeing a computed 'stress ratio' of actual stress/allowable stress.This calculator follows the procedures and guidelines of the AISC 9th Edition Allowable Stress (ASD) Manual.Merely move the mouse pointer to the desired cell to view the contents of that particular 'comment box'.) (Note: presence of a “comment box” is denoted by a “red triangle” in the upper right-hand corner of a cell. This calculator contains numerous “comment boxes” which contain a wide variety of information including explanations of input or output items, equations used, data tables, etc.