ETABS Tutorial 12: Choosing the Walls Flexural Stiffness (0.7Ig or 0.35Ig) Using the Rupture Modulus

In this video, you'll find:

0:00 ACI 318-14 Code Insights
A breakdown of ACI 318-14 code guidelines, explaining how to choose between cracked and uncracked cross-section properties for walls, all based on the modulus of rupture (MOR). If the tensile stresses of a wall exceed the modulus of rupture (MOR), a cracked cross-section property of the wall should be used.

1:48 Shell Stress Explanation with a Simple Wall Example
An example of a simple wall subjected to various loads (Dead loads, SIDL, and the RSA method) is used to closely examine the displayed shell stress results, with a focus on how ETABS handles stress calculations using both "Max" and "Min" options within load combinations.

8:52 Selection of Wall Stiffness in Our Case Study
In our case study, the wall stress results are displayed and directly compared to the modulus of rupture in ETABS software. The analysis shows that the uncracked section property is the appropriate choice for the walls.

11:57 Checking Wall Stresses in a Different Building Configuration
In this part, we closely examine wall stresses within a similar building having different structural configurations. Here, we observe locations where the wall's tensile stresses exceed the modulus of rupture. It's important to note that this building has torsional irregularities, which is the primary reason for getting higher tensile stresses.

You can access and download the Excel sheets by clicking on the link below:
https://drive.google.com/drive/folder...