Design of large ductwork
Design of large ductwork
(OP)
Hello guys!
I need to design a large ductwork for an electrostatic precipitator, and would like to know which software and code that you use for this.
I'm thinking of using SAP2000. I will use elements area for plate and frame elements for reinforcements. It is the best method?
Thank you.
Bruno A.
Structural Engineer
I need to design a large ductwork for an electrostatic precipitator, and would like to know which software and code that you use for this.
I'm thinking of using SAP2000. I will use elements area for plate and frame elements for reinforcements. It is the best method?
Thank you.
Bruno A.
Structural Engineer






RE: Design of large ductwork
As with anytime you're mixing plate and linear elements (but especially with the thin walled members I suspect you have), you'll need to be careful about the behavior where the two meet.
RE: Design of large ductwork
Lomarandil, Thank you!
The Deflection and stress in the plate I will check with de Roark's Formula (Large Displacement Method) using the Dead Load, pressure load, wind load and the insulation load.
The stiffeners I will check with the SAP2000 (AISC ASD). But, I dont know how I will check the buckling in the plates.
RE: Design of large ductwork
Right now, I'm using Risa but it's for aluminum plates with low d/t ratios (to avoid buckling).
RE: Design of large ductwork
Assuming the ductwork is approximately this size:
To my knowledge, there is not a code. Instead, design in general conformance with the AISC specification and ASCE 7.
The internal operating design pressure loads are established, in part, by the induced draft, forced draft, and any booster fan specifications. Coordinate the design with the mechanical engineers' requirements for proper gas flow.
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RE: Design of large ductwork
RE: Design of large ductwork
Rectangular Industrial Duct Construction Standards Foreward
Rectangular Industrial Duct Construction Standards Table of Contents
RE: Design of large ductwork
Dave
Thaidavid
RE: Design of large ductwork
RE: Design of large ductwork
RE: Design of large ductwork
RE: Design of large ductwork
RE: Design of large ductwork
You also have to be carefo that you don’t get any quacks in your duck work, so don’t just wing it.