Pattress Plates
Pattress plates are designed to provide low bearing stress on buildings, bridges and retaining walls.
When used with tie rods / Grip-Bar® anchors they form an effective repair system.
Stainless UK offer a full range of pattress plates designed to meet a wide range of requirements.
DUCTILE IRON PATTRESS PLATES
- Traditional shape with optimised weight
- Designed to provide low bearing stress on masonry structures
- Pattress plates to suit bar diameters from 16 to 39 mm
- Standard pattress plates in stock
- Self aligning pattress plates can cater for up to 30° misalignment
FABRICATED PATTRESS PLATES
- Stainless UK manufacture stainless steel pattress plates to order. These can be produced in either Grade 304 or Grade 316 stainless steel and in a range of specifications to meet customers' individual requirements
- Stainless steel pattress plates can be made to allow up to 30° of misalignment
- Stainless UK can also supply a full range of Grip-Bar® stainless steel tie bars and fixings
DUCTILE IRON STANDARD PATTRESS PLATES
- Material ductile iron (SG)
- Finish: grey primer as standard
- Design stress ratio:
Stress in substrate/Stress in bar = 1/240
DUCTILE IRON SELF ALIGNING 30° PATTRESS PLATES
- Maximum misalignment +- 30°
- Material ductile iron (SG)
- Finish: grey primer as standard
- Design stress ratio:
Stress in substrate/Stress in bar = 1/220
BENEFITS
- Comprehensive range to suit all applications
- Optimised shape-high strength with low weight
- Aesthetically superior to fabricated plates
- Ductile iron (SG) (Spheroldial Graphite to ISO 1083 / JS / 450-10 / S)
- Readily available
APPLICATIONS
- Buildings
- Retaining walls
- Bridges
- Soft stone
- Concrete
- Rock
| Reference | Nominal Bar size | Max Design Load | Nominal Dimensions Approx. | Weight Approx. | ||
| Flat Plate | Up to 30° | mm | kN | Base Dia mm | Height mm | Kg |
| M16P | MS16P | 16 | 78 | 225 | 50 | 4.2 |
| M20P | MS20P | 20 | 122 | 280 | 60 | 8.0 |
| M24P | MS24P | 24 | 176 | 335 | 80 | 12.3 |
| M30P | MS30P | 30 | 280 | 420 | 90 | 25.3 |
| M39P | MS39P | 39 | 490 | 545 | 120 | 57.0 |
SPECIAL PLATE DESIGNS
Plates are manufactured to customer specific requirements
GRIP BAR
Ideal for Rock bolts, Soil Nails, Bridge Strengthening, Building and Bridge cross ties, Ground anchors, Holding down bolts.
TOP HAT WASHER
Used as isolation washer to avoid bimetallic corrosion between the ductile iron / mild steel pattress plate and the stainless steel bar.
GROUT HOLE
Plates can be threaded 3/8 bsp enabling a grout tube to be attached. A breather hole can be machined if required.
HEMISPHERICAL WASHER
For use with either a dished, fabricated or ductile iron plate which requires more than 8 degree misalignment.
GRIP SOCK
A flexible sock which fits over the anchor bar. As it is filled with grout it expands into cracks and holes.
PROTECTION CAP
Caps are designed to protect the bar and nut from atmospheric conditions and also stop tampering.
REDUCER WASHER
Allow a small diameter bar to be used with a larger pattress or washer plate.
LANTERN SPACERS
Centralisation of single bar within a bore hole enables an even flow of grout around the bar.
HEMI NUT
Hemi nuts can be supplied to suit a wide range of plates. They enable a greater degree of misalignment.
