Is a steel structure or concrete better for the scaffolding of an 80m fiberglass chimney?

Some flue gas desulfurization towers used for wet desulfurization are made of fiberglass, which could serve as a reference

Personally, I think as long as the strength requirements are met, that’s sufficient. Next, one can consider the cost and the convenience of construction. Both options can meet the strength requirements: steel structure materials are more expensive but offer easier construction and a shorter timeline, while concrete is cheaper but requires a longer time to complete. Please consider all these factors carefully!

This needs to be determined based on the requirements of the client and the design institute. If there are no special requirements from either party, as long as the strength requirements are met, it’s fine. Both materials need to have corrosion resistance; the choice between them should be based on construction costs or long-term operating costs. In most cases, the cheaper option is chosen.

Try to use concrete structures to save costs; moreover, steel structures tend to rust severely over time.

Steel structure materials are more expensive, but they are easy to construct and have a short construction period. Concrete is cheaper, yet its construction period is longer. Additionally, with steel structures, fire and corrosion protection measures must be taken into account; if the environment is highly corrosive, such protective treatments can be costly, making concrete a more cost-effective option~~

Steel structure materials are more expensive, but they are easy to construct and have a short construction period; concrete is cheaper, yet its construction period is longer. Additionally, for steel structures, fire and corrosion protection measures must be taken into account. If the medium is highly corrosive, such protective treatments are expensive; concrete is a cheaper alternative. However, concrete structures require a large amount of space!

For 80-meter tall towers, a steel structure is still used. Although steel structural materials are more expensive, they are easy to construct, have a short construction period, and require less space. Concrete is cheap, but the process takes a long time. Additionally, with steel structures, fire and corrosion protection measures need to be taken, which is more expensive than using concrete~~ But concrete structures require a large amount of space!

Is it feasible for a 80-meter-high concrete tower? Everyone can discuss it! I think it’s better to use steel structures; the technology is also more mature!

Concrete takes a long time to complete, but it requires less maintenance later on. Steel structures pose corrosion issues over time, so it is important to choose the appropriate option based on its own characteristics

Hello, OP. For a fiberglass chimney 80 meters high, I recommend using an external steel frame structure; stability will definitely not be an issue. I just completed a project in Guizhou where the chimney was 80 meters tall and 2.4 meters in diameter, with a three-tube tower (three legs)； By concrete chimney, do you mean one with acid-resistant lining applied directly to concrete, or a concrete sleeve with fiberglass chimney? I do not recommend this approach if acid-resistant bricks are to be used on top of concrete, as many clients modify their newly built chimneys into sleeve structures before they have even started operating them ； The way acid-resistant bricks are applied to concrete chimneys is really unsatisfactory; over time, acidic liquid still seeps out from the foundation ； Therefore, fiberglass chimneys for steel structures are highly recommended. I have photos of chimneys with steel frames in my portfolio; I specialize in manufacturing fiberglass chimneys, so we can exchange more ideas ；