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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 Type
Moment Connection-Extended End Plate Type
Shear Connection
Brace Connection Type
Brace Hor Member Connection Type
Brace Hor Strut Connection Type
Splice Connection
Base Plate and Anchor Bolt 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 Moment Connection-SeismicMoment Connection-Seismic
OMF MC-4 Bolt 4E Extend End Plate
OMF MC-8 Bolt 8ES Extend End Plate
SMF BFP Bolted Flange Plate
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 Vertical Brace - SeismicVertical Brace - Seismic
SCBF HSS Ver Brace
SCBF HSS Chevron Brace-Top
SCBF HSS Chevron Brace-Bottom
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 Google  Chrome     web browser.

If you are not using Google Chrome browser, please change to Google Chrome web browser and restart this program again.

To view connection design in real project demo, visit D1 Video    D1 Working Sheet
To run the steel connection design program online, visit Start Program
To have a quick review on how to use the program, visit Quick Start
To view a series of tutorial videos, visit Tutorial Playlist

Civilbay steel connection design program is one of the most comprehensive steel connection design software based on AISC 360-16 and AISC 360-10 code, CSA S16-14 code,
and all AISC Steel Design Guides.
1. It's a pure AISC solution which covers 90~95% of steel connection 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 design.
2. It provides detailed sketches and textbook style step by step calculation showing formulas and parameters. In every step it shows the design code reference source for
the user to trace how the result is derived so that the user has full control on the calculation. 

AISC Steel Connection - Vertical Brace Connection

AISC Steel Connection - Moment Connection

AISC Steel Connection - Shear Connection - End Plate

AISC Steel Connection - Shear Connection - Clip Angle

AISC Steel Connection - Shear Connection - Shear Tab

AISC Steel Connection - Splice Connection

AISC Steel Connection - Base Plate Vertical Brace Connection

AISC Steel Connection - Hor Brace Wrap Around Gusset Plate Connection

AISC Steel Connection - Chevron Brace Connection

AISC Steel Connection - Knee Brace Connection