Autodesk Robot Structural Analysis Professional Tutorials - The Slab Series | Part 4 - Modeling Ribbed Slabs | Autodesk Robot

In this video, we are going to model a small ribbed slab in Autodesk Robot, preparing it for design in a later video. Some discussions with Engr. Donald Khanye: POINT 1: Tip for shifting beams Engr. Khanye: Useful tip: As an alternative to deleting and re-drawing a beam when shifting the beam end "or start" node from one node number to the other node number as it was done in this video as part of the practical mesh refinement process, one can also select the beam to be moved and directly change the beam end "or start" node number by typing-in the new node number directly on the members properties dialog box under the object inspector dialog box. POINT 2: About stirrups Engr. Khanye: Whilst I do not disagree with this statement; I’d like to mention that there can also be rib slabs that do have stirrups located within the ribs CEE: About stirrups, indeed, it depends on the region. Also, some people consider the "W-shaped steel bars that carry the bars" as stirrups. The more conservative assumption is to assume no stirrups and keep those W shapes as factor of safety. I love this comment and will modify parts of the description to reflect me not mentioning this really good point. Huge thnx to you. Link to the Model: https://drive.google.com/file/d/15vh_Avyotofas-xpX2bkhCwVVSBEuiE3/view?usp=share_link Current Video Ideas for the Future: - Full Structure with mesh and twisting. - Advanced Mesh Options - The Dynamics Series: comparative analysis between robot - Circular Arrangement of Reinforcement - Highway Bridge - Watertank with non-linear hinges. - 3D elements in Dams or soil-structure interactions - Basement Walls and the discontinuity of loads on columns - Influence Surfaces - When and why modal mass is always 90% or less. - Tie beams in normal structure. - More details about modal participation / report? - Masses and stiffnesses to control modes - 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 - Wood and Armer Moments in Slabs and their meaning - Complex and Principle results - Simple TBM tunnel lining analysis in robot Timestamps: 0:00 Introduction 0:37 What are Ribbed Slabs 11:38 Modeling 19:52 Practical Issues in Ribbed Slabs 21:20 Modeling Cont'd 22:53 Solution to Isolated Nodes 24:10 Modeling Cont'd 28:51 Mesh Issues 34:09 Results Discussions 38:31 Software vs. Approx Analysis 42:02 Outro