Performance mock up v.s Pre-tendering mock up
on Ncarb's practice exam, there was a question about what mock up to use to select contractor for some complicated construction. The correct answer they gave was pre-tendering mock up instead of performance mock up. Does anyone have experience with pre-tendering mock up? I have never, the two mock ups I've dealt with are visual mock up and performance mock up.
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I have the same question. When researching online, not much comes up as it relates to construction. I did find some language as it relates to finance. Tender refers to an invitation to bid on a project, which is aligning with the explanation the practice exam provided. So it sounds like a "pre-tender mock up" is used to evaluate a contractor prior to them being issued the bid. I don't know for sure if this is the extent of the definition and I've also never heard of the term before in the industry.
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Doubly Curved Metal Panel Cladding (complex, challenging unique construction)
Target Goal:
- 'Select most capable contractor for supply and installation'
The correct tag was:
- 'Full scale pre-tender mock up'
The explanation was:
- 'These are used to identify the most capable contractor for complex and challenging constructions.'
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Pre-tendering mock-ups, also known as pre-tender mock-ups, are created before the tendering process to help in the selection of the most capable contractor for a project. These mock-ups are particularly useful for projects involving complex or specialized construction methods and materials. Here's an explanation of pre-tendering mock-ups and how they compare to other types of mock-ups:
Pre-Tendering Mock-Up
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Purpose:
- To evaluate the capabilities of contractors before they are selected for the project.
- To ensure that the contractor can deliver the required quality and handle the complexity of the project.
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Usage:
- Commonly used in projects with intricate designs, specialized materials, or unique construction methods.
- Helps the project owner and architect assess whether potential contractors have the necessary skills and resources to complete the project to the required standards.
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Process:
- Potential contractors create mock-ups based on the project's design and specifications.
- These mock-ups are then evaluated by the project owner and the architect to determine which contractor demonstrates the best capability and understanding of the project requirements.
Comparison with Other Mock-Ups
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Visual Mock-Up:
- Purpose: To provide a visual representation of the final product, focusing on aesthetics, material selection, and installation techniques.
- Usage: Used to review and approve the appearance, materials, and installation methods before full-scale production begins.
- Example: Reviewing the joint alignment and material finish for a wood wall and ceiling.
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Performance Mock-Up:
- Purpose: To test the performance characteristics of a construction element under real-world conditions.
- Usage: Used to ensure that the element meets specified performance criteria such as structural integrity, weather resistance, and thermal performance.
- Example: Testing the load-bearing capacity and weather resistance of a glass cable wall.
Example Scenario for Pre-Tendering Mock-Up
Imagine a project involving the installation of doubly curved metal panel cladding, which requires precise fabrication and installation techniques. The project owner and architect may request pre-tendering mock-ups from potential contractors to:
- Assess the contractor's ability to accurately fabricate and install the complex panel shapes.
- Evaluate the quality of workmanship and adherence to design specifications.
- Determine the contractor's capability to manage and coordinate the installation process effectively.
By creating a pre-tendering mock-up, the architect and project owner can make an informed decision about which contractor is best suited for the project, thereby reducing the risk of issues arising during construction.
Conclusion
Pre-tendering mock-ups are an essential tool in ensuring that complex and specialized construction projects are executed by capable contractors. They provide a practical way to assess a contractor's ability to meet the project's requirements before the tendering process is finalized, thereby enhancing the overall quality and success of the project.
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Purpose:
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