This article relates to the bolt configuration of Beam Column Design and End Plate Design.
End Plate Design (multiple bolt columns) Beam Column Design (one in-plane bolt column)
The Beam Column connection design is not able to have more than two columns of bolts per side of the web. This moment connection design module can analyse connections that transmit shear, moment and axial force. Only forces in the plane of the connection are considered, i.e. vertical shear, axial compression or tension and in-plane moment. Hence only in-plane bolt configurations are considered. These connections typically apply to the rafter - column connection of portal frames.
In End Plate Connection Design, the option is available to add an x amount of bolt columns. This simple connection design module can analyse connections that transmit end shear and axial force only. This connection has negligible resistance to rotation and is thus incapable of transmitting significant moments at ultimate limit state. Hence the configuration of linear moment distribution in bolts is discarded. A typical example where end plate design would be used is mezzanine floors for internal beam ties. These connections do not transmit in-plane moments through the connections, but the moments are carried by the loaded element.