Bar deflection check
The Bar deflection length tool is used to define reference lengths and deflection limits for bar elements that are included in deflection checks.
When you activate this tool, a tool palette opens.
Main tools
- Define - assign a deflection length to selected bar elements
- Properties - view or edit properties of existing deflection length definitions. Opens the Default settings dialogue for the selected elements
- Default settings - open the default settings dialogue for bar deflection lengths (read below in more detail)
Element selection
The following functions are used to control which bar elements the deflection length is applied to:
- Beams - assign deflection lengths to beam elements
- Columns - assign deflection lengths to column elements
These options are used together with the Define tool.
Default settings
When you press Default settings, a dialogue window opens where you can define deflection behaviour and limit values for bar elements.
Behaviour
Select how the bar element is treated in the deflection check:
- Simply supported – deflection is evaluated assuming a simply supported behaviour
- Cantilever and column – deflection is evaluated assuming cantilever or column behaviour
- Deflection not relevant – the bar element is excluded from deflection checks
Deflection limits
Deflection limits can be defined separately for different SLS load combination types.
Available options depend on the selected combination type.
For each combination type, the following limits can be used:
- Relative limit – limit deflection relative to the reference length
- Absolute limit – limit deflection using an absolute value
The defined limits are used when running the deflection check with the Check tool.
Only load combination types enabled in the Configure deflection check tool are available in this dialogue.
To read more about the Configure deflection check tool, see the topic:
User interface ➔ Tab menus ➔ Analysis ➔ Panel Deflection check ➔ Configure deflection check