Torsion Reserve Factors Table

Generate a table summarizing the structural adequacy factor for the torsion resistance of the members based on the assessment checks for ULS.

Torsion check is only performed for the closed section, i.e. non-composite box section, composite box section. Reserve factors for torsion are not provided in the current version.

From the Main Menu select Rating > Bridge Rating Design > CS454/19 > PSC Bridge > Assessment Result Tables > Torsion Reserve Factors Table

Element:  Element ID

Part:  The i- or j-end of the element, giving the Node ID at that end in square brackets [Node ID]

Rating Case:  The relevant Load Combinations for Assessment. Assessment check is performed for 12 sets of concurrent forces for each load combination.

v:  Shear stress.

vt:  Torsional shear stress.

vtu:  Ultimate shear stress.

y1:  Larger center-line dimension of a link.

vtu(y1/550):   Ultimate shear stress of small sections.

A:  Structural Adequacy – calculated as the assessment resistance over the assessment load effects ( vtu/(v+vt) ).

Check:  An overall indication whether the section passed all checks and is OK or Not Good (NG)