Field Erected Tanks Anchor Channel Steel Bottom Elevated
Field Erected Tanks Anchor Channel, Steel Bottom, & Elevated
By the end of this presentation you should know…. What is a knock down tank? What is an Anchor Channel Tank; why use one? What is a Steel Bottom tank; why use one? What is an Elevated tank; why use one? Why is seismic information important? Why is customer’s completion date important at bid time? • What are some important factors in field erection? • • •
Knock Down Tank
Anchor Channel Tank • Lowest cost for Wes. Tech to supply • Full concrete floor required • Used in non-corrosive situations
Anchor Channel Tank • Tank ships “knock down” in many pieces • A structural channel is the anchorage to the foundation • Channel ships before the foundation is installed.
Anchor Channel Tank
Anchor Channel Tank
Anchor Channel Tank
Anchor Channel Tank
Anchor Channel Tank
Anchor Channel Tank
Steel Bottom Tank • More expensive than AC tank due to steel floor • Full concrete floor or concrete ring with compacted fill foundation • Typically used in corrosive situations or where environmental containment is neccessay • Can have a “false bottom” to avoid underground piping
Steel Bottom Tank • Anchor chairs tie tank to foundation • Tank ships knock down in many pieces
Steel Bottom Tank
Steel Bottom Tank
Steel Bottom Tank
Steel Bottom Tank
Steel Bottom Tank
Steel Bottom Tank – False Bottom
Elevated Tank • Most expensive type of tank • Concrete pad(s) or piles • Typically used in any of the following: – Where environmental containment is necessary – Where excavation is not desired – Where the underflow pumps need to be very close to the underflow cone – Operators need to have access to the pumps
Elevated Tank • Anchor bolts tie tank to foundation • Tank ships knock down in may pieces
Elevated Tank
Elevated Tank
Elevated Tank
Elevated Tank
Elevated Tank
Design Standards • All clarifier / thickener tanks can comply to portions of AWWA and API standards • Not all portions of AWWA and API are applicable to our tanks • Portions of our tanks use AISC design standards • All tank designs require seismic data for design • Concrete vs Steel
Design Standards - Seismic
Design Standards - Seismic
Field Erection Considerations • • • Paint Site Location Weather Labor Type and Cost Schedule Deadlines
Tank Erection - Paint
Site
Weather
Labor Type and Cost
Schedule
- Slides: 36