Bridge Restrainer Data Form

Restrainer properties specify data for restrainer cables. Restrainer cables are used as tension ties across superstructure discontinuities. Restrainers may be assigned at abutments and hinges and at bents where the superstructure is discontinuous over the bent. When specified, the program assumes that a restrainer cable exists at each girder location. A restrainer property can be specified as a Link/Support property or it can be user defined. The user defined restrainer is recommended. The user defined restrainer is specified by a length, area and modulus of elasticity.

Bridge Restrainer Name edit box. Use the default or specify another name for the restrainer definition.
Bridge Restrainer Type
Link/Support Property option. If this option is selected, select a link definition from the drop-down list. Alternatively, click the plus symbol (+) preceding the drop-down list to access the Link/Support Properties form and define a new link definition or review/modify an existing link property definition.
User Definition option and parameters. When this option is selected, accept the values or enter revised values in the Restrainer Length, Restrainer Area, Restrainer Modulus E and Restrainer Slack Length edit boxes.

Access the Bridge Restrainer Data form as follows:

Click the Components > Substructure Item > Restrainer > Expand arrow command, or on the Bridge Wizard highlight the Restrainer item and then click the Define/Show Restrainer button, to display the Define Bridge Restrainer form.
Click the Add New Bridge Restrainer button or highlight a previously defined restrainer property and click the Add Copy of Bridge Restrainer or Modify/Show Bridge Restrainer button to display the Bridge Restrainer Data form.

After the restrainer has been defined, assign it to the bridge model using a Bridge Object or Step 7 on the Bridge Wizard.