The plate making up the structures are connected by high strength bolts of grade not lower than 8.8. Their length varies with the thickness of the steel plates. Generally shorter bolts will be used to join two plates, longer bolts for three plate laps. Nuts should be situated from inside of culvert for bottom an corner plates, but in top plates the nuts should be situated from outside of culvert.
When designing the structure plate culvert pipe durability should be considered with regards to:
- zinc coatings
- paint coatings
-sacrificial thickness of steel as allowance for corrosion
(increasing of the plate thickness)
- other kinds of protections
The plate making up the structures are connected by high strength bolts of grade not lower than 8.8. Their length varies with the thickness of the steel plates. Generally shorter bolts will be used to join two plates, longer bolts for three plate laps. Nuts should be situated from inside of culvert for bottom an corner plates, but in top plates the nuts should be situated from outside of culvert.
| Corrugation | 68×13mm,100×20mm,125×25mm,150×50mm,200×55mm,230×64mm,300×110mm,380×140mm,400×150mm |
| Diameter or span | 0.4m-24m |
| Thickness | 1.6mm-12mm |
| Zinc coating | 84μm each side |
| Steel standards: | ASTM A36,EN 10111,ISO 5951 |
| Application | .Multiplate structures pipe can be used as: - culverts - bridges - tunnels - under passed - ecological crossing - pedestrian tunnel - hangers - shelter - warehouse - stores for ammunition - belt conveyor protection - ventilating duct - and for reinforcement and reconstruction of existing structures as well. Metal corrugated pipe can be used for every class of service load provided that appropriate back filling is performed |
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