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h1. Handling of hyperstatic moments

As of SAP2000 V14.0.0, the The flexural design check for prestressed -concrete box -girder bridge superstructures has been enhanced to fully accountaccounts for secondary effects from prestress -tendon forces. In previous versions of the program, all prestress load was being removed from the demand design combos, including primary and secondary forces, unless [hyperstatic load cases|migration1d:hyperstatic] representing the secondary forces were added to the combos. Now only the primary prestress forces are being removed, so that the demand willPrimary prestress forces are removed and demands automatically include the secondary forces. ThereHyperstatic isload no longercases a need tonot includebe hyperstaticincluded load cases in the design comboscombinations. TheTendons flexuralmust designbe checkmodeled nowas requireselements tendonsfor tothe beflexural modeleddesign as elementscheck. 
Load
combinationsUsers should create beload createdcombinations with prestress loading. HyperstaticPrimary casesforces are notcalculated neededthrough andsubtraction areof nottendon used. Instead, the actual forces in the tendons are subtracted from theforce from demand. TheseAdditional areconcrete the primary forces. Any additional forces in the concrete are either secondary forces or due to other loads.imposed. 

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