BC: Beam End Release

Function

Enter the end release conditions (Hinge, Sliding, Roller Joint and Partial Fixity) at both ends of beam elements, or replace or remove previously entered end release conditions.

Call

Main Menu: Analysis > BC > Beam End Release...

<Beam End Release>

Object

Select elements to assign beam end release condition.

Mode

Add

Add new beam end release condition  to selected elements.
 

Replace

Replace previously defined beam end release condition on selected element.
 

Delete

Delete beam end release condition on selected element..
 

Apply to Unassigned Objects Only

When adding new beam end release, this option only applies beam end release to unassigned elements only.
 

End Release

Enter connection and partial fixity condition for each DOF at both ends in the element's local coordinate system.

Enter Partial Fixity in terms of the stiffness ratio or the magnitude of stiffness for the relevant beam element.

0.3 for My (bending moment) of i-Node (N1 end node) in the dialog box represents 30% of My flexural stiffness is to be effective.

Type

Relative

Enter the stiffness ratio. For example, 0 and 1 represent the completely released condition and the fully fixed condition, respectively.
 

Value

True magnitudes of stiffness values.
 

Fx

Release axial force in the element's local x-direction and enter Partial Fixity if necessary.

Fy

Release shear force in the element's local y-direction at the relevant end and enter Partial Fixity if necessary.

Fz

Release shear force in the element's local z-direction at the relevant end and enter Partial Fixity if necessary.

Mx

Release torsional moment about the element's local x-axis at the relevant end and enter Partial Fixity if necessary.
 

My

Release moment about the element's local y-axis at the relevant end and enter Partial Fixity if necessary.
 

Mz

Release moment about the element's local z-axis at the relevant end and enter Partial Fixity if necessary.

To release the bending stiffness about the element's local y- and z-axes at both ends

To release the bending stiffness about the element's local y- and z-axes at N1 end

To release the bending stiffness about the element's local y- and z-axes at N2 end

To restore all the end release conditions at both ends to fixed conditions
 

After specifying all of the input data, the user can confirm using the Preview button. The user can reset all of the selected input data using the button.