TRC Bridge Design Software

Overview WinFAD is a computer program developed to assist the bridge engineer in designing or checking spread and pile concrete footings subjected to eccentrically applied axial loads that produce biaxial bending moments. Acceptable spread footing sizes and pile patterns are quickly and efficiently determined using WinFAD. After the engineer selects footing plan dimensions, WinFAD determines footing thickness and areas of reinforcing steel which satisfy design specification requirements. Individual loads are entered at the service level.

AASHTO LOAD GROUPS I THROUGH VI are included in the group combinations. Individual loads, input at the service level, are factored and combined in accordance with the AASHTO group combinations for Load Factor Design. Live loadings which produce maxima for each of the two bending moments and the axial load are further subdivided into 3 cases for Load Combination Groups, I, III, IV and VI.

SEISMIC DESIGN is in accordance with AASHTO Standard Specifications for Seismic Design of Highway Bridges or Caltrans Specifications for Group VII Loading.

ARBITRARY LOADS defined by the user are easily included in the family of loadings.

DESIGN RESULTS:
WinFAD calculates the areas of reinforcing steel required based on the following criteria:

• Satisfy crack control requirements
• Moment produced by LFD or LRFD factored loads
• Moment produced by Seismic loads
• 1.20 times cracking moment
• 1.33 times area required for analysis
• 0.75 times balanced reinforcement ratio
• Maximum bar spacing of 18 inches

WinFAD checks bar spacing based on the following criteria:

• Minimum AASHTO bar spacing
• Preferred Caltrans minimum bar spacing
• Maximum bar spacing of 18 inches
• Inadequate development length

Please send all inquires to Koung Thao at KThao@trcsolutions.com

Our Software Selection

• WinSEISAB

  WinSEISAB is an analysis tool that allows the bridge engineer to keep pace with developments in seismic design of bridges.

• WinABUD

  WinABUD designs or checks a reinforced concrete abutment using the 1996 AASHTO with Interims and Revisions by Caltrans.

• WinRECOL

  WinRECOL analyzes, designs or checks a reinforced concrete columns.

• WinFAD

  WinFAD is a computer program developed to assist the bridge engineer in designing or checking spread and pile concrete footings subjected to eccentrically applied axial loads that produce biaxial bending moments.

• WinBDS

  WinBDS analyzes or designs orthogonal bridge frames and is applicable to the majority of concrete bridges being designed today.

• CAPP

  CAPP is a fully functional 2-D pushover program with unique and unprecedented analytical and modeling capabilities.

• XTRACT

  AVI FILE CREATOR allows the user to create computer animation of the section under the applied loading while simultaneously showing a graph of the response.