Shape Sheets - Steel - Localization Differences

 

The shape sheets command will display different steel design results for the steel element depending on the choosen standard. See below the main differences when a different standard is selected.

 

CM 66 French Standard

Deflections

When the CM 66 standard is selected, for the current project, in the Deflections tab of the Shape Sheet dialog box, the results are available only for elements, not super elements.

Cross Sections Strength

This tab displays the unfavorable case of the cross section strength verification for the selected element. The calculations can be selected from the Steel design settings dialog box.

Cross sections strength

Shape sheet - Cross Sections Strength tab

 

The table displays the list of cross section strength verifications determined according to CM 66: tension / compression verification, shear verification on y and z direction, bending verification.

For each verification there is displayed the most unfavorable case, the expression used for verification and the verification results.

Shear on Y direction: shear stress about the local y axis.

Shear on Z direction: shear stress about the local z axis.

Work ratio: the ratio between the design value of effort and the design resistance.

Bending in Z direction and shear on Y direction (Mz+Vy,).

Biaxial bending (My+Mz).

Elements Stability

This tab displays the list of operations related to elements stability verifications.

 

Elements stability

Shape sheet - Elements Stability tab

 

LambdaFy: slenderness ratio for buckling about y-axis.

LambdaFz: slenderness ratio for buckling about z-axis.

Lfy: buckling length in the (xy) plane.

Lfz: buckling length in the (xz) plane.

LambdaDi: superior slenderness ratio for lateral torsional buckling.

LambdaDs: inferior slenderness ratio for lateral torsional buckling.

Ldi: lower fiber torsional buckling length.

Lds: upper fiber torsional buckling length.

k: reduction factor for pure compression buckling (determined according to CM66).

kfz: reduction factor for flexural buckling (z-z axis).

muz: deviation coefficient from the critical state (z-z axis).

kfy: reduction factor for flexural buckling (y-y axis).

muy: deviation coefficient from the critical state (y-y axis).

kd: lateral torsional buckling coefficient.

B: coefficient depending on the level of application of the loads  (determined according to CM66).

C: coefficient depending on the longitudinal distribution of the loads (determined according to CM66).

D: coefficient depending on the member dimensions (determined according to CM66).

Fx: normal force along the local x axis.

My: bending moment about the local y axis.

Mz: bending moment about the local z axis.

sFx: normal stress from axial load.

sMy: normal stress from bending moment about the local y axis.

sMz: normal stress from bending moment about the local z axis.

se: stress corresponding to elastic limit.

American and Canadian Standards

Deflections

The results for super elements are not available.

Cross Sections Strength

This tab displays the unfavorable case of the cross section strength verification for the selected element. The calculations can be selected from the Steel design settings dialog box.

Cross sections strength

Shape sheet - Cross Sections Strength tab

 

Shear on Y direction: shear stress about the local y axis.

Shear on Z direction: shear stress about the local z axis.

Bending on Y direction

Bending on Z direction

Combined forces: Verification of tension compression and bending. Please note that this option is available only for Canadian standards.

Work ratio: the ratio between the design value of effort and the design resistance.

Class

This tab displays the cross section class and the domain (plastic or elastic).

Class

Shape sheet - Class tab

 

The table displays:

Note

For American localization (ANSI/AISC standards), the available classes are compact, non compact and slender.

Class

Available classes for American standards

 

Related Topics