RAM Structural System Help

Shear

When checking web shear stresses and capacities, the full cross-sectional area of the web is considered. Block shear and other connection related shears and capacities are not checked.

The shear diagrams produced by the program are the shears produced by the loading that produced the maximum moments. For simple span beams with positive loads, these shears will represent the maximum shears. For cantilevered beams or beams with negative loads, the diagrams may not represent the maximum shears if the skip load pattern which produced the maximum moments differs from the skip load pattern that would produce the maximum shears.

On the AISC reports, the value listed as "Maximum: Shear" is based on the assumption that the maximum occurs at the supports. Web shear stresses are checked for the maximum shears that occur at the supports only.

For Eurocode, shear is typically considered along with the moment at a section. The Eurocode report shows the maximum shear (VzEd) on the span and the plastic web resistance (VplRd).