Defining a haunch on a 1D member

A haunch beam is not a special type of 1D member in the full meaning of the word. A haunch is in fact a property that can be assigned to any previously defined 1D member. Consequently, the definition of a haunch beam is always a two-step procedure.

First step is the insertion of the 1D member itself (either a general beam or column or horizontal beam). This is then followed by the specification of parameters defining the haunch.

The procedure for the definition of a haunch

1. Insert the 1D member that is supposed to contain a haunch and close the New beam function. (Unless it has been made earlier).

2. In the tree menu open service Structure.

3. Start function Haunch.

4. Input and select required parameters and properties of the haunch.

5. Confirm the setting with [OK] button.

6. Select the 1D member(s) that should contain the haunch.

7. Close the function.

8. Close the Structure service.

Note: A standard 1D member (i.e. horizontal beam, column or general 1D member) is defined with a specific cross-section. This cross-section is one of the beam’s parameters. However, when a haunch is defined on this 1D member, the haunch defines its own cross-section and assigns it to the 1D member. The original cross-section is overloaded (forgotten for the moment). However, if the haunch is later deleted, the 1D member remains in its position and takes back its original cross-section.