Modeling Mat (Raft) Foundations (Flexible Method) in Autodesk Robot

Welcome to our tutorial on Modeling Mat (Raft) Foundations (Flexible Method) in Autodesk Robot. In this video, we'll show you how to model mat foundations using the flexible method in Autodesk Robot and how to analyze their behavior under different loads and supports.

Whether you're an engineer, architect, or student, this video will help you understand the basics of mat foundation modeling and how to apply them to your projects. We'll cover topics such as modeling techniques, defining properties, and analyzing the results.

We'll start by showing you how to create a new model and define the properties of the mat foundation, such as thickness, material, and reinforcement. We'll also cover how to define the soil properties and the boundary conditions.

Next, we'll show you how to apply loads and supports to your mat foundation, such as self-weight, dead loads, and live loads. We'll also cover how to analyze the results, such as the settlement, stress distribution, and bearing capacity.

By the end of this video, you'll have a better understanding of how to model mat foundations using the flexible method in Autodesk Robot and how to analyze their behavior under different loads and supports. Don't forget to like, comment, and subscribe for more tutorials like this one!

ERRATA:
Dr. Kassem says:
- Let us assume that the max allowable settlement is 0.025m.
- Also, let us assume that the Kz used in the software is calculated without factor of safety.
- The "simplistic equation" is: delta = F/K.
Since the K is without a factor of safety, there are two approaches for this:
Approach 1: calculate the "safe" "allowable" K by dividing by 3 (Factor of Safety). Then use it calculate the the settlement. (So we would need another model for this)

Approach 2: realize that the soil is "too strong" and limit the deflection to 1/3 of the 0.025.

HUGE THNX. It helps a lot.

Current Video Ideas for the Future:
- LL Reduction in ACI/ASCE (vertical and horizontal)
- A possible way to model columns with pressure areas
- Deeper dive into slab reinforcement.
- Raft with larger thickness and positions
- Robot - seemingly - erratic deformation when supported by beams and columns
- A way to manually “clean-up” simple mesh like the above
- EQ on Retaining Walls
- Wind according to ASCE
- Wood and Armer Moments in Slabs and their meaning
- Complex and Principle results
- Reaponse spectrum analysis
- Simple TBM tunnel lining analysis in robot

Timestamps:
0:00 Introduction
1:56 Modeling the Raft Foundation
3:36 Raft Thickness Definition
6:01 Parameters of Soil Elasticity
11:38 Load Calculations
16:23 Little Trick for LL
19:02 Calculations and Results
21:13 Thoughts on Deflection
24:14 Thoughts on Results
26:25 Inherent Modeling Inaccuracies
28:36 When to use Mats?
29:02 Improving Column Loads
36:36 Small Comparison Notes
39:22 Modeling the Elastic Foundation
47:38 Outro