ivanlocke
Civil/Environmental
- Jan 23, 2003
- 60
Hello,
I have a hobby project of making a printing press (for relief printing). Instead of a typical "run between two rollers" press I am looking at making a press which would pressurize the area between the lid (pinned to the base) and a flexible membrane with the pressure transmitted to my printing by the flexible membrane.
The lid (and symetrically, the base) would pretty much be a rectangular blank flange supported along two edges (beam/oneway slab). I am currently looking at a pressured area of 17"x24" at 75psi.
The design for the blank flange I am looking at now, and would appreciate comments on, is two 1/4" plates spaced by 1" square bar around the perimeter. I would coat the inside with a bonding agent (looking at Sikadur 32) and fill with non-shrink grout.
The I of the two 1/4" plates is plenty stiff with with the 1" spacing IF the steel, concrete work as a composite member. The bonding agent looks like it would give me the shear strength required between concrete and flat steel.
Will this actually work in practice? Do I need to be concerned about breakdown in the bonding agent as the pressure will be cycled many times (every time I print)?
Any comments would be appreciated.
Thanks,
Ivan
I have a hobby project of making a printing press (for relief printing). Instead of a typical "run between two rollers" press I am looking at making a press which would pressurize the area between the lid (pinned to the base) and a flexible membrane with the pressure transmitted to my printing by the flexible membrane.
The lid (and symetrically, the base) would pretty much be a rectangular blank flange supported along two edges (beam/oneway slab). I am currently looking at a pressured area of 17"x24" at 75psi.
The design for the blank flange I am looking at now, and would appreciate comments on, is two 1/4" plates spaced by 1" square bar around the perimeter. I would coat the inside with a bonding agent (looking at Sikadur 32) and fill with non-shrink grout.
The I of the two 1/4" plates is plenty stiff with with the 1" spacing IF the steel, concrete work as a composite member. The bonding agent looks like it would give me the shear strength required between concrete and flat steel.
Will this actually work in practice? Do I need to be concerned about breakdown in the bonding agent as the pressure will be cycled many times (every time I print)?
Any comments would be appreciated.
Thanks,
Ivan
