Bridge Temperature Load Assignments

Temperature load assignments apply to the bridge superstructure. Assignments can be constant temperature changes or temperature gradient changes over the height of the superstructure. Temperature gradient load assignments use predefined temperature gradient definitions.

Span display box. The span to which the temperature load is being assigned is shown in this display box.
Load Pattern drop-down list. Use this drop-down list to select the load pattern to which the temperature load is being added. Click the + (plus symbol) beside the drop-down list to access the Define Load Patterns form and define new load patterns or review/modify existing ones.
Temperature Change Data
- Uniform Temperature Change option and Temperature edit box. When this option is selected, specify the temperature change using the edit box. The temperature change will be applied uniformly across the selected span.
- Temperature Gradient option. If this option is not available, no temperature gradients has been defined. Click the + (plus symbol) beside the Temperature Gradient Definition drop-down list to access the Define Bridge Temperature Gradient form and add a new temperature gradient.

Access the Bridge Temperature Load Assignments form as follows:

At a minimum, create a layout line and define a deck section.
Click the Bridge > Bridge Objects > Expand arrow, or on the Bridge Wizard select the Bridge Object Definition item and click the Define/Show Bridge Objects button, to display the Define Bridge Objects form.
- Alternatively, to bypass the Define Bridge Objects form, click the Bridge > Bridge Objects > New command, which will display the Bridge Object Data form identified in the next step.
Click the Add New Bridge Object button, or highlight a previously defined bridge object and click the Add Copy of Bridge Object or the Modify/Show Bridge Object button, to display the Bridge Object Data form.
In the Modify/Show Assignments display list, highlight the Temperature Load Assigns item and click the Modify/Show button to display the Assign Bridge Temperature Loads form.
- Alternatively, on the Bridge Wizard select the Temperature Loads item in the Bridge Object Assignments area and click the Assign/Show Temp. Loads button to access the Assign Bridge Temperature Loads form.
Click the Add New Temperature Load button or highlight a previously defined load pattern in the Load Patterns display list and click the Modify/Show Temperature Load button to access the Bridge Temperature Load Assignments form.