PGSuper 7.0
Precast-prestressed Girder Bridges
Sign Convention

Unless otherwise noted, the sign convention used in this software is based on the right hand rule and "A simple sign convention for elastic analysis of prestressed concrete members", John Stanton, PCI Journal November-December 2007 Edition

Item Value
Compression < 0
Tension > 0
Positive Moment Tension bottom, Compression top, > 0
Negative Moment Tension top, Compression bottom, < 0
Upward Deflection > 0
Downard deflection < 0
Counter clockwise rotation > 0
Clockwise rotation < 0
Top Section Modulus < 0
Bottom Section Modulus > 0
Strand Eccentricity above Centroid < 0
Strand Eccentricity below Centroid > 0