Defining a Beam with a Notch at the Support

 

In Advance Design, the term "beams with a notch at the support" refers to beams that feature a cut-out or indentation at their supports. This design consideration is particularly relevant for beams with rectangular cross-sections and where the grain runs parallel to the length of the member. When analyzing the shear stresses at the notched support, it is essential to calculate them using the effective (reduced) depth, known as hef.

 

How to access the command

To access the corresponding command in Advance Design, please follow these steps:

 

Properties list – Notches

Properties list – Notches

 

How to create beams with a notch

To create beams with a notch, follow the following instructions:

1. Access the command as outlined above and ensure all necessary properties for verification are correctly set. Notably, there are two nodes associated with the same properties: the first is for the notch at the start of the element- Start Notch, while the second is at the end of the element- End Notch.

 

2. Notch location: Define the location of the notch using the available options:

 

 

3. Beam start height (hef): Specify the beam start height (hef), which represents the effective depth of the beam at the support.

 

4. Support to notch distance (x): Determine the support to notch distance (x), indicating the distance from the line of action of the support reaction to the corner of the notch.

 

5. Inclined part length (Li): Define the length of the inclined part (Li), representing the extent of the inclined portion within the notch.

 

6. Following the completion of the FEM + Timber calculation, review the verification results in the Shape Sheet report:

 

Shear Notches - report

Shear Notches - report

 

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