Common Errors in SAP Implementation and Technical Drawings

In the field of construction and engineering, SAP software plays a crucial role in structural analysis, load calculations, and design optimization. However, the implementation of SAP and the preparation of technical drawings often encounter errors that can impact project quality.

Below are common mistakes and solutions to ensure efficient project execution.

1. Errors in SAP Structural Modeling

1.1 Incorrect Material Properties

A common mistake in SAP usage is inputting incorrect material parameters such as concrete and steel strength, elastic modulus, or Poisson’s ratio. This can lead to inaccurate calculations, affecting the durability and load-bearing capacity of structures.

Solution:

• Carefully verify material parameters according to design standards.
• Cross-check data with material supplier specifications.

1.2 Inaccurate Structural Modeling

Missing or incorrectly defining connections, supports, loads, or boundary conditions can distort analysis results.

Solution:

• Ensure the model accurately reflects real-world construction conditions.
• Use SAP’s internal verification tools to validate the model.

2. Errors in Load Assignment and Load Combinations

2.1 Missing or Incorrect Load Input

Engineers may unintentionally omit critical loads such as wind, seismic, or live loads. Additionally, incorrect load units can lead to inaccurate analysis results.

Solution:

• Use a consistent unit system and carefully review inputs before running simulations.
• Cross-check load combinations against design standards.

2.2 Incorrect Load Combinations

Load combinations are critical for ensuring structural safety. Missing essential combinations or misapplying load factors can result in unrealistic calculations.

Solution:

• Apply design standards such as ACI, Eurocode, or TCVN.
• Verify each load combination before proceeding with analysis.

3. Errors in Technical Drawings

3.1 Missing Critical Details in Drawings

Incomplete drawings or missing key annotations can lead to misunderstandings and construction errors.

Solution:

• Ensure drawings include all dimensions, symbols, notes, and relevant standards.
• Conduct cross-checks within the design team.

3.2 Inconsistencies Between SAP Models and Drawings

If drawings do not accurately reflect the SAP model, discrepancies may arise between the design and actual construction.

Solution:

• Always update SAP models and drawings in parallel.
• Use software tools to automate drawing exports from SAP to minimize errors.

4. Errors in Reporting Analysis Results

4.1 Failure to Review Analysis Results

Some engineers rely solely on SAP-generated results without verifying their accuracy. This poses risks if input errors occur.

Solution:

• Always cross-check results using manual methods or alternative software.
• Re-evaluate deformations, stresses, and reactions to ensure precision.

4.2 Incomplete Reports

Reports may lack crucial information such as moment diagrams, deformations, or internal forces, complicating construction execution.

Solution:

• Ensure reports contain all necessary data.
• Export reports in a standardized format for easy review and application.

5. Errors in Inspection and Adjustments

5.1 Skipping Re-Checks After Adjustments

After modifying SAP models, some users neglect to re-verify, leading to prolonged errors.

Solution:

• Always review the model after each modification.
• Store different model versions for easy comparison.

5.2 Lack of Coordination Between Departments

Poor communication between design and construction teams can lead to significant implementation issues.

Solution:

• Regularly conduct technical meetings to ensure alignment.
• Use project management software to track progress and control errors.

Conclusion

Implementing SAP and preparing technical drawings require high precision and strict adherence to procedures. Common mistakes in structural modeling, load assignment, drawing preparation, and verification can significantly impact construction quality.

Therefore, engineers must master inspection and adjustment principles to ensure accuracy and safety in design.

If you are looking for optimized solutions for structural design and analysis, consult experts for in-depth guidance and the best support.

See more: Latest Construction Costs for Pre-Engineered Steel Buildings in 2025

QSB Steel – Your Trusted Partner for High-Quality, Durable, and Efficient Steel Structures!

📞 Hotline:(+84) 918 23 23 65
🌐 Website: QSB Steel

Let’s collaborate to build strong, high-quality, and sustainable steel structures together!