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Quick Start
User Interface
First Connection
When Get Error Message
Collapse How to UseHow to Use
User Input & ToolTip
User Input-Update Button
User Input-Suggest Values
Global Settings
Design Code & Unit
Input Loads Sign Convention
Calculation Report
Save/Open File
Print Calculation
Collapse Connection LibraryConnection Library
Moment Connection
Shear Connection
Brace Connection
Splice Connection
Collapse Sample CalculationSample Calculation
Collapse Moment ConnectionMoment Connection
MC-4 Bolt Extend End Plate
MC at Column Top - Column Siffener Plate
MC at Both Sides of Column - Column Siffener and Doubler Plate
MC-2 Bolts Top Flush End Plate
MC-12 Bolts Extend End Plate MRE 1/3-4W/2W
MC-Flange Plate to Column Flange
MC-Flange Plate to Column Web
Collapse Shear ConnectionShear Connection
End Plate-Beam to Column Flange
End Plate-Beam to Column Web
End Plate-Beam to Girder
End Plate-Beam to Girder with Stiffened Coped Beam
Clip Angle-Beam to Column Flange
Clip Angle-Beam to Column Web
Clip Angle-Beam to Girder
Clip Angle-Beam to Girder with Stiffened Coped Beam
Shear Tab-Beam to Column Flange
Shear Tab-Beam to Column Web
Shear Tab-Beam to Girder
Shear Tab-Beam to Girder with Stiffened Coped Beam
Collapse Vertical Brace ConnectionVertical Brace Connection
W Shape Brace to Column Web
W Shape Brace to Column Flange
Collapse Horizontal Brace ConnectionHorizontal Brace Connection
Horizontal Brace-End Plate
Horizontal Brace-Wrap Around Gusset Plate-Clip Angle
Horizontal Brace-Wrap Around Gusset Plate-Shear Tab
Collapse Chevron Brace ConnectionChevron Brace Connection
Chevron Brace
Collapse Knee Brace ConnectionKnee Brace Connection
Knee Brace
Collapse Base Plate Ver Brace ConnectionBase Plate Ver Brace Connection
Base Plate Ver Brace-Column Flange
Base Plate Ver Brace-Column Web
Collapse Splice ConnectionSplice Connection
Splice-Exterior Flange Plate
Splice-Exterior/Interior Flange Plate
Splice-Top & Bottom Extended End Plate
Splice-Top Flushed & Bottom Extended End Plate
Welcome to CivilBay Steel Connection Design Suite ! 


Important Note:  

This program only works on Chrome   , Firefox   or Opera  browser.

The first choice is Opera , the second choice is Chrome , the third choice is Firefox .
If you are not using one of these three browsers, please change to one of them to start the program. All these three browsers are free.
Opera browser is very similar to Chorme and performs the best among these three browsers. User can download Opera browser free from here Opera browser for Windows      

User can click on this link Start Program  to start the program at any time.  Series of tutorial video  are available in YouTube.

Civilbay steel conection design is one of the most comprenhensive steel connection design software based on AISC code, CSA S16-14 code (coming soon), and all AISC steel design guides.
1. It's a pure AISC solution which can cover 90~95% of steel connections design in most projects, with specific strength on brace connection design including vertical brace, horizontal brace,
   chevron brace, knee brace, ver. brace to base plate , and wrap around gusset plate design in horizontal brace.
2. It provides detail sketches and text book style step by step calculation showing formulas and parameters. In every step it shows the code reference source. As such the user knows how the
    result is derived and has full control on the calculation.