Self-consolidating concrete placement in the Stadium seats

[JohnRwals]

Hi!

I heard precast concrete stadium seats could be produced with self-consolidating concrete.
I wonder how they can be poured with different floor levels without cold joint
between first and second placement layers.
I am asking how I can make them monolithic concrete section with SCC.

-JRW

 

[structSU10]

They can build their forms vertical depending on the length? Otherwise they would have to build an enclosed box that can withstand the fluid pressure.

 

[Brad805]

Here is a typical form for precast bleachers. Usually made in single, double or triple risers depending on spans and arrangement.

 

[MotorCity]

Rotate the stairs so they are vertical and pour them like a wall.

 

[JStructsteel]

Dont they let the lower set up a bit before adding more?