Temperature Load
This section defines uniform temperature loads for thermal expansion and contraction.
Overview
Temperature variations that occur throughout the day exert two types of loads on bridges: expansion and contraction.
Steps
Step 1: Navigate to Uniform Temperature Load
Navigate to Loads > Temperature Load > Uniform Temperature Load in the tree view.
Step 2: Select Construction Stages
Click the three-dot icon on the Stage cell and select TUExpStage and TUContrStage to define the temperature loads that have an impact on the bridge.
Step 3: Assign Bridge
Click the three-dot icon on the Bridge cell and set Bridge as BRG1.
Step 4: Set Temperature Changes
Set Temperature Change from mean [F] parameters:
UTL1: 40 F (expansion)
UTL2: -40 F (contraction)
The purpose is to calculate the loads that may occur under these critical temperatures.
Verification
Temperature loads for expansion and contraction should be properly defined.
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