Beam Design - IS 800-07

Shear

This section provides a check of the shear capacity of the section for the maximum shear that occurs at the support.

Setting	Description
LoadCombo	The controlling Load Combination, ie load combination that produces the largest shear.
Vz	The maximum factored design shear load at the support.
Vdz	The plastic shear capacity of the beam.
τbz	The maximum design shear stress at the support.
τabz	The allowable shear stress of the beam.

Moments

This section gives the magnitude and location of the design moments with the associated capacities.

Setting

Description

Span

This indicates the span for which the values are being listed. It includes Left for left cantilever, Right for right cantilever, and Center for main span.

Cond

This indicates the load condition. It includes:

Setting	Description
Max +	Maximum Positive Moment
Max -	Maximum Negative Moment

Controlling

This is the controlling set of values.

Setting	Description
LoadCombo	This is the controlling Load Combination for the span and condition indicated.
Cl	The class of the section subject to the indicated loads. Only class 1 and 2 can be designed as composite sections.
Mz	This is the factored moment for the indicated Span, Condition and Load Combination.
fbc, fbt	These are the bending stresses at the compression and tension flanges for the indicated Span, Condition and Load Combination.
@	This is the location of the indicated moment, measured from the left end of the beam.
Lb	This is the unbraced length for the segment containing the indicated moment. If unbraced length was not considered, as for a simple span composite beam, Lb is indicated with "---". Otherwise, if the compression flange is fully braced throughout the segment, Lb is indicated with "0.0", meaning there is no unbraced length to be considered.
Mdr	This represents the plastic resistance moment of the section.
fabc, fabt	These are the allowable bending stresses at the compression and tension flanges for the indicated Span, Condition and Load Combination.
Capacity	This is the design strength of the beam segment.