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Follow the next steps to set boundary conditions for each bearing location (insertion point) that you have defined while creating the bridge layout. |
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Go to Bearing Fixity on the tree view next to data spreadsheet.
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Set Tx/Ty/Tz/Rx/Ry/Rz.
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Set Transfer Force to Substructure as Yes for interior pier locations.
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Set Transfer Force to Substructure as No for start and end support locations.
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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. -20221022-132407.png?version=1&modificationDate=1666445058623&cacheVersion=1&api=v2) Bearing Rotation parameter rotates the support clockwise in the XY plane.  FE behaviour of Transfer Force to Substructure.  |
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Go to Bearing Fixity under Boundary Conditions on the tree view.
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Copy Articulation from model inputs and paste into OpenBrIM.
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Completed Bearing Fixity is illustrated below. |
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After clicking on 'Superstructure> Bearings> FEA Bearing' in the navigation treeview, follow the steps to define the bearings. You can use the collapsed documentation page below for more information on the explanations of each parameter. |
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| FEA Bearing [SIG] |
| 1 | 🖱️ Click three-dots icon on Insertion Point cell and click Select. |
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| 2 | 🖱️ Select Insertion Point as a IP1 and Click OK. |   | ||||||||||
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| 4 | 🖱️ Keep the Tx as default. |  | ||||||||||
| 5 | 🖱️ Click the three-dots icon on the Ty and Tz cell, and then set Fixed. |
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| 6 | 🖱️ Keep the Rx, Ry, Rz, Bearing Rotation and Transfer Forces to Substructure as default. |
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| 7 | 🖱️ Keep the bearing’s name as default. | |||||||||||
| 8 | When the steps are completed, the shared screenshot displayed in the adjacent cell should be visible in the 3D view of OpenBrIM. |
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| 9 | To model all of the bearings, copy the data below and paste the parameters into the first cell in the OpenBrIM spreadsheet. Refer to the quick tip for an easy guide on how to perform the copy operation. After completing the copy, proceed to the next step to verify the model. | |||||||||||
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FEA Bearing | ||
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Articulation
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The completed definitions for bearings are illustrated below. Please verify that your model matches by examining each view provided here. For more information on performing visual checks, refer to the quick tips. |
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To view the entire procedure explained on this page, please watch the recorded Video below. |
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