Precast Panel to Suspended Slab Connection? 1

[UpsideDown]

One of my client wants panels 'hanging' outside the suspended slab, which I haven't done before. I wonder if I can have something like cast-in plate in panel and weld to cast-in angle with bars in slab? But I am not sure what to look at or if consideration that I will miss when it comes to calculations. Can anyone please share their thoughts and maybe some basic calculation? I am also looking for books regarding panel connections design. If you guys can suggest some of them that will be great. I am in Australia. Thank you.

 

[Tomfh]

Yes angles are common. You can also cast a ledge on the panel - like an upside down corbel arrangement.

The tricky part is providing some tolerance in the connections. You generally need slotted hole in the angle (which can be subsequently welded with washers), or welded joints that allow for positioning. For tolerance in concrete it’s common to use conduits for the pins, which can subsequently be grouted. You would likely struggle with horizontal alignment if you are casting the angle directly into the slab and trying to weld the panel straight to it.

It’s worth getting precast handbook and familiarising yourself with some previous details.

 

[UpsideDown]

Hi Tomfh, Do you have a sketch example or some computation on this? I have seen EA used for footing or suspended slab carrying outrigger but haven't seen one for hanging panel. I still feel not very comfortable with this. There might be something that I didn't take into consideration.

 

[dhengr]

UpsideDown:
Why don’t you show us what you have ‘considered,’ instead of asking us to do it for you from scratch? You will learn a lot more that way, rather than just copying someone else’s work and then promptly forgetting it. Think about how this is fabricated, assembled and erected. Then, design details to facilitate this, and design them for the loads they see, as well as ease of use and installation, etc. Show some notes on your thoughts and reasoning, along with the calcs. needed to show that it meets code, etc. Then, people can critique what you have done, and explain why they might disagree on some parts or details.

 

[GC_Hopi]

Trying search the precast concrete institute handbook.