For this example we will design rigid connections between the beam and the wall in order to obtain the corresponding stress status.

Considering that the horizontal elements (beams, coupling beams) are elements where bending moment is the dominant effort, in Advance Design you must define the beam to wall connection to achieve the desired results.

In this example, beams are linear elements 30x40cm, the column is also a linear element but with a square cross section 50x50cm, and the walls are planar elements with a 30cm thickness; all elements are made of concrete strength class C20/25. The ensemble is subjected to dead loads and two uniform live loads, one distributed on the entire ensemble with 10kN/m and the other one distributed only on the coupling beam with 15kN/m.

How is a beam to wall connection designed

To obtain the rigid beam to wall connection we have to select the adjacent wall beams and, in the element properties window, select the "Extend into the wall" option.

How is a beam to wall connection designed

As shown in the figure below, for the beams without the "Extend into the wall" option, the bending moment at the end adjacent to the wall tends to zero.

How is a beam to wall connection designed

The strain of the walls is different for the two cases presented (as seen in figure below), the correct version is the one where the "Extend into the wall" option was used.

How is a beam to wall connection designed

A correct design of coupling beams must follow a distribution of potential plastic zones at beam ends, so it is necessary to use this option for the bending moment diagram.

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