Define project criteria for computing moment capacity.

Moment Capacity

Item	Description
Include pretensioned strand in negative moment capacity calculations	When checked, the pretensioned strands will be included in the negative moment capacity analysis. Typically the strands are neglected, however for cantilevered girders, the strands may provide significant capacity and should be included in the analysis.
Include girder longitudinal mild reinforcement in capacity calculations	When checked, the mild steel longitudinal reinforcement in the girder will be included in the capacity analysis. Prestressing strand is always included the capacity analysis. For bridges without a cast-in-place deck or overlay, this setting is ignored and mild steel longitudinal reinforcement in the girder will always be included in the negative moment capacity analysis. Without a deck structure, the girder is the only source of reinforcement for negative moment capacity.
Modulus of rupture for cracking moment (LRFD 5.4.2.6, 5.6.3.3 (pre-2017: 5.7.3.3.2))	Enter the coefficient for the modulus of rupture for computing cracking moment.

Resistance Factors (LRFD 5.5.4.2)

Define the resistance factors

Conventional Construction (LRFD 5.5.4.2)

Define the resistance factors for conventional construction for normal weight and lightweight concrete.

Closure Joint (LRFD 5.5.4.2 and 5.12.3.4.2d (<em>pre-2017: 5.14.1.3.2d</em>))

Define the resistance factors for cast-in-place closure joints for normal weight and lightweight concrete.

Negative Moment Capacity

Deck longitudinal reinforcement provides all tensile section forces in the negative moment region of the structure. This option specifies whether negative moments due to non-composite loads (such as girder and deck dead load) are included in Mu. Some bridge owners have a policy to consider only moments due to superimposed dead loads when evaluating negative moments. You will see the effect of this setting in the Strenght I Deck Moment in the Moments, Shears, and Reactions chapter of the Details Report as well as the ultimate moment, Mu, in the negative moment specification checks.

TIP: Refer to the Moment Capacity in the technical guide for more information about how moment capacities are computed.