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Please follow the instructions provided below to set boundary conditions for each bearing location (insertion point) that you have defined while creating the bridge layout.

1

Navigate to to Superstructure > Boundary Conditios > Bearing Fixity

2

Choose the first cell from the "Insertion Point" column, and then choose the "Pick" button from the window that pops up.

3

Select the insertion points to define boundary conditions for the superstructure. At each location, enter fixities or stiffness values according to bearing types in Tx, Ty, Tz directions.

Pick insertion points for each bearing

4

Set Tx/Ty/Tz/Rx/Ry/Rz.

5

Set Transfer Force to Substructure as Yes for interior pier locations.

6

Set Transfer Force to Substructure as No for start and end support locations.

7
 Quick Tip

In this part, dofs are assigned to nodes. The coordinate system of the each insertion point changes along the support line and alignment. According to this new coordinate system, new dofs should be assigned.

Tx/Ty/Tz/Rx/Ry/Rz fixities are shown below.

Bearing Rotation parameter rotates the support clockwise in the XY plane.

FE behaviour of Transfer Force to Substructure.

Follow the below steps to copy and paste all inputs from our data set.

Navigate to Bearing Fixity under Boundary Conditions on the tree view.

Copy Articulation from model inputs and paste into OpenBrIM.

Completed Bearing Fixity is illustrated below.

 Quick Tip: Copy inputs to OpenBrIM

Copy the desired data with the automatic copy button in the upper left corner.

Click on the first cell in and use the Ctrl+V shortcut to paste.

If icon won’t appear, collapse page tree menu by clicking on arrow or using shortcut “[”.

While pasting large data, it would be handy to turn of Auto-refresh .

Bearing Fixity

Articulation

BF1	IP1	Free	Fixed	Fixed	Free	Free	Free	0	NO
BF2	IP2	Free	Fixed	Fixed	Free	Free	Free	0	NO
BF3	IP3	Fixed	Fixed	Fixed	Free	Free	Free	0	YES
BF4	IP4	Fixed	Fixed	Fixed	Free	Free	Free	0	YES
BF5	IP5	Fixed	Fixed	Fixed	Free	Free	Free	0	YES
BF6	IP6	Fixed	Fixed	Fixed	Free	Free	Free	0	YES
BF7	IP7	Free	Fixed	Fixed	Free	Free	Free	0	NO
BF8	IP8	Free	Fixed	Fixed	Free	Free	Free	0	NO
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