Lower quote for tensile membrane structures

Why and here is how some get provide lower quote for tensile membrane structures:

  • Lower Grade Fabric: This can have significant drawbacks:
    • Reduced Strength: The fabric might not be able to withstand the intended loads, leading to potential collapse.
    • Fire Resistance: Lower fire resistance ratings pose a safety hazard in case of fire.
    • UV Resistance: Degradation under UV exposure can shorten the lifespan of the structure and compromise its appearance.
  • Thinner Cables and Steel Structure: This can compromise the structural integrity of the entire system:
    • Deflection: The structure might sag excessively under its own weight or external loads.
    • Collapse: In extreme cases, thinner elements can lead to catastrophic failure under heavy wind or snow loads.
  • Reduced Wind Speed in Design: This is a major safety concern, as it underestimates the actual wind forces the structure might experience. It could lead to:
    • Structural Damage: The structure might not be strong enough to handle actual wind loads, potentially leading to damage or collapse.
    • Safety Risk: A structure designed for lower wind speeds and lower safety factor could pose a danger to occupants and surrounding areas during strong winds.
  • Simplifying Design with no creativity: While some simplification is possible for optimization, excessive simplification can lead to:
    • Inefficiency: The structure might use more material than necessary, increasing costs in the long run.
    • Structural Issues: An overly simplified design might lack the necessary strength or stability for the intended purpose.
  • Junior Engineer Running FEA Software: Finite Element Analysis (FEA) is a complex tool. Inexperienced engineers might:
    • Miss Crucial Factors: Omit important details from the analysis, leading to an inaccurate prediction of the structure’s behavior.
    • Misinterpret Results: Misinterpret the FEA results, potentially leading to design flaws and safety hazards.
  • Nesting Pattern in All Directions: While efficient fabric use is important, nesting in all directions can lead to uneven stress distribution.
  • Manual Plotting and Cutting Fabric: While manual methods can be used, they have limitations:
    • Increased Risk of Errors: Manual plotting and cutting are more prone to human error compared to computer-controlled cutting systems.
    • Inaccuracy: Manual methods might not achieve the same level of precision as computer-controlled cutting, potentially compromising the final form of the structure.

Tensile membrane structures are complex engineering projects. While cost is a factor, prioritizing safety, quality, and long-term durability is crucial. By understanding the project details, and focusing on value over just a low price, you can ensure a safe tensile membrane structure that will last for years to come.

error: Content is protected !!