Check bolt capacity against prying forces in flange-type connections such as tee-stubs and end-plate joints. The calculator determines the additional tensile demand on bolts caused by flange flexibility and compares it to available bolt strength. Input flange geometry, bolt layout, and applied load to verify adequacy. Produces detailed hand-calculation output.
Prying action is the additional tensile force in bolts caused by bending of the connected flange. A flexible flange amplifies bolt tension beyond the applied load.
When should I check for prying?
Check prying action whenever bolts are loaded in tension through a flange, such as tee-stub connections, end-plate moment connections, and hanger connections.