The Scanada Tank Jacking method facilitates and simplifies the erection and expansion of steel storage tanks. It can best be described as a "Top Down"
method of construction. Once the foundation and tank bottom plates are installed, tank erection begins with the assembly and welding of the top shell plates and roof.
Scanada's tank jacks are then installed along the inside periphery of the tank along with lifting lugs welded to the shell plate at each jack location.
The top ring of shell plates and roof are lifted with the jackes high enough to permit the next ring of tank plates to be installed beneath.
The next ring of shell plates is installed and welded, the jacks and lifting lugs reset to their starting position, and the tank (now two rings high) is lifted again.
This process is repeated until the tank is at full height.
There are great advantages with this erection method:
All work is carried out at the ground level for maximum safety. No relocation of access scaffolding is necessary.
Because the roof is fixed to the top shell plates from the beginning, the entire tank is provided with wind-load stability and weather protection
throughout the erection work.
Weld seams are easily accessible for inspection assuring high quality of construction.
