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This page is devoted to frequently asked questions (FAQ) related to the Section Designer.

 

Modeling

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Table of Contents

Modeling

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Question 1: Is prestressing only available to Caltrans shapes?

Answer 1: Yes, as of SAP2000 V12.0.2, prestressing can only be specified for Caltrans shapes. Additional information is available in the tutorial.

Question 2: How are section properties calculated? Does the software distinguish between solid and thin-walled sections?

Answer 2: OPEN QUESTION

How do I model a hollow section?

Answer: To create an opening within a section, draw (over the shape which represents the section boundary) a shape which represents the opening. Right-click this shape, then change the material type to Opening.

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Related Incidents:

  • Incident 48449: Section Designer

Design

Why does nothing happen when I launch design for a built-up (I-shaped) steel section?

Answer: To design a built-up steel frame section within the Section Designer, the section should be defined as a User-Defined I or as a User-Defined Box Section, and not as a Section Designer Section.

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Related Incidents:

  • Incident 47292: SAP2000 - Built-up sections

Composite response

Can I check the concrete stress for a steel-girder and concrete-slab composite section?

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Answer: Once the section is defined in the Section Designer, right-click on the section, then select the confined-concrete model, as shown in Figure 1. Longitudinal and transverse bar size and layout may then be specified.

 


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Figure 1 - Confined-concrete sections

Time-dependent properties

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  • Open the other model, then import the previously exported tables by selecting File > Import.

 


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Figure 2 - Export properties tables