RTU Curb Bearing on Tectum Deck
RTU Curb Bearing on Tectum Deck
(OP)
Would there be a problem with an RTU/Curb bearing on a tectum deck. Provided there is an angle frame directly below tectum deck at the curb. Basically is there a problem with crushing of the tectum 'panel' that is between the angle and RTU?
Also while on the subject.... What is the norm for a steel deck? RTU to bear on the deck, remove the deck so it bears directly on the angles or provide blocking in the flutes of the deck?
We usually provide blocking to prevent crushing although size/weight may also come into consideration.
Also while on the subject.... What is the norm for a steel deck? RTU to bear on the deck, remove the deck so it bears directly on the angles or provide blocking in the flutes of the deck?
We usually provide blocking to prevent crushing although size/weight may also come into consideration.






RE: RTU Curb Bearing on Tectum Deck
RE: RTU Curb Bearing on Tectum Deck
Any thoughts on the Tectum?
EIT
www.HowToEngineer.com
RE: RTU Curb Bearing on Tectum Deck
RE: RTU Curb Bearing on Tectum Deck
RE: RTU Curb Bearing on Tectum Deck
Here is their response:
"Design load for compression should not exceed 40 PSI. This allows for most RTUs to be supported through the cementitious wood fiber deck to the angles below. "
I asked about a specific time period so this really doesn't apply:
There were multiple manufacturers of cementitious wood fiber decks in 1970. All unfortunately are called Tectum which is a registered trademark.
EIT
www.HowToEngineer.com
RE: RTU Curb Bearing on Tectum Deck
"Tectum deck weight about 21 lb/cubic foot or about 5.25 lb/sqft for a 3” thick panel. Most other cementitious decks were about 35-40lb/cuft."
EIT
www.HowToEngineer.com