Enhancements and corrections in LEAP Bridge Concrete version 22.00.02.19 (part of Open Bridge Designer version 10.11.00.40 (September 2022)

LEAP Bridge Concrete (LBC)

• Enhancements for PennDOT
  • Minimum steel reinforcement requirement per PennDOT DM-4
  • Custom distribution of SIP loads
  • Custom flexural capacity calculations per PennDOT DM-4
  • Custom legal and permit trucks to the available design trucks
  • Custom setting of P/S strand debonding length
  • Custom limiting stress factors
  • Custom resistance factor for voided box girders
• Show the envelope of P-Delta effects in Analysis results
• Enhancement of analysis reporting of superstructure for multi-span concrete bridges

The following issues are fixed:

• Design parameter factor of Release Time of the deck was reverted to 0.75 each time when the program was closed and reopened in Precast/Prestressed Girder module.
• Minimum ratio of deck overhang to thickness was incorrectly implemented in deck design with empirical method in Precast/Prestressed Girder module.
• With the option Run Girder-by-Girder was toggled on, the results of the rating with user defined truck were missing in Precast/Prestressed Girder module.
• Incorrect header of the service limit state check report in Precast/Prestressed Girder module.
• The report did not correctly show the case in the horizontal shear design check when the option intentionally Roughened was selected in Precast/Prestressed Girder module.
• Incorrect reactions were shown for permit trucks under Strength Limit State II in Precast/Prestressed Girder module.
• Incorrect live load deflection was reported when the options of flared girders and girder-by-girder were selected for analysis in Precast/Prestressed Girder module.
• Concrete modulus of elasticity of pier cap was incorrectly reported for stem wall abutment in Substructure module.
• Width of approach slab was incorrectly not allowed to great than 100 feet in Substructure module.
• Self-weight was incorrectly calculated when stepped cap was selected for beam seat of stem wall abutment in Substructure module.
• Barrier height was incorrectly hard coded in the Superstructure Parameters window in Substructure module.
• Input of "Length of Live Load" in the auto-generation of the wind load effect was unable to be retained in Substructure module.
• Details of live loads from the multiple rounds of auto-generation were incorrect in Substructure module.
• Load effects due to uniform temperature load were incorrectly generated in stem wall abutment in Substructure module.
• Incorrect moment diagram of pier column was shown when a user defined checking point was added to pier column in Substructure module.
• Station of the end of bridge was calculated incorrectly when the option Along Girder Between Piers was selected to generate the deck elevation report.
• Callout of dimensions was abnormally small when the program was run for the first time after installation.
• Unknown error when clicked Report Selection button, leading to incompletely generated reports.