SP3D Structure

SP3D Structure Tutorial: Analysis I nterfaces

Session 22: Analysis Interfaces Objectives: By the end of this session, you will be able to: • •

Export the model for analysis. Update member size changes made by external analysis software.

Prerequisite Sessions: • • • •

SP3D Overview SP3D Common Sessions Structural Analysis: An Overview Creating an Analysis Model

Overview: An analysis model is a representation of the physical model and loads. Loads are used for the analysis of structural finite element stress. An analysis model consists of structural members, member end releases, connection nodes, loads, load cases, and load combinations. SP3D exports the analysis model in CIMsteel Integration Standard file format (CIS/2) for processing by external analysis software packages. Changes in the member size can be imported using the same standard. After creating an analysis model, you can perform the following tasks: • • •

Create a mapping file, which typically an administrator creates. Export the analysis model to an external analysis and design program for analysis. Update the analysis model by using the Update from Analysis/Design command. This command only updates section size changes to members whose identities match those in the CIS/2 file being imported.

Creating a Mapping File: The analysis model is sent to a third-party program, which sometimes uses different names for member section sizes and materials. You create a mapping file to automatically generate the names in the CIS/2 format file that the external application will interpret. You must create a mapping file before exporting an analysis model and the same mapping file can be used again for importing the model. Once created, it can be used repeatedly. There are four kinds of mapping: Section mapping Material mapping Member type mapping Slab type mapping • • • •

© Copyright 2009 Intergraph Corporation

Last Updated: March 6, 2009 for SmartPlant® 3D 2009

Page 1 of 4


To create a mapping file, click the File > New Mapping File… command. This command creates an XML mapping file. You can specify the SP3D section standard table to be the output of the mapping file and the mapping file name in the New Mapping File dialog box, as shown in Figure 1. The mapping file created by the New Mapping File… command is a template. The SP3D does not write the third-party names to the mapping file because these names differ for the analysis applications. You need to edit and maintain the appropriate third-party application mappings in the file.

Figure 1: New Mapping File Dialog Box

Exporting the Analysis Model: After creating a mapping file, you can export the SP3D analysis model to a third-party program using the CIS/2 analysis model format. You can lock the members and loads exported for modifications by changing the Status property of the object to In review or Approved. This locking prevents you from making accidental changes while the model is being analyzed.

Tip: •

Right-click the analytical model and select the Select Nested command. All the objects related to the analytical model are selected. You can edit the object status of all the objects by using this command.

When you export the analysis model, the software creates an identity for each member that is the output for the CIS/2 format file. This identity is maintained and used by the external analysis program. As a result, you can update the analytical model that has been previously exported. To export the analytical model from SP3D, on the File menu, point to the Export option, and click the Analytical Model… command. Clicking this command displays the Export Analytical Model dialog box where you can specify properties, such as Name, Author, Organization, Coordinate system, and CIS File. You need to specify the name of the analysis model to export the name of the person who created the CIS file, the organization name, the coordinate system that you use, and the path of the CIS file using these properties, as shown in Figure 2.



Page 2 of 4


Figure 2: Export Analytical Model Dialog Box

Notes: • •

•

An analysis model is associated with a CIS/2 file. As long as you maintain the analytical model within SP3D, you can regenerate the CIS/2 file at any time with consistent identities of objects. This means you can create a new CIS/2 file and use it to update an analytical model in the third-party analysis package. When the Include mapping file option is selected, the software uses the mapping file you identify in the Mapping file field when creating the CIS/2 file.

Update from the Analysis Model: After performing the analysis and making design changes to the model, the third-party program can export the analytical model to a CIS/2 format file. This file can maintain the identities of elements that it read while importing. You can import this model to update the sizes of physical member sections. In the Structural Analysis task, clicking the Update from Analysis/Design button on the vertical toolbar opens the Update from Analysis/Design dialog box. This dialog box allows you to read a CIS/2 file that contains all the analysis and design results from a third-party program. In the Update from Analysis/Design dialog box, you can specify properties, such as the name and path of the CIS file to import results back into the analysis model. Figure 3 shows the Update from Analysis/Design dialog box and the properties that you can specify in it.



Page 3 of 4


Figure 3: Update From Analysis/Design Dialog Box

Notes: •

• •

•

You can only update member section sizes. Member topological changes, new loads, new load cases, and new load combinations cannot be read from CIS/2 files by using the Update from Analysis/Design command. You cannot update members if you do not have Write access to the members. To use a mapping file while exporting and importing analytical data, you can select the option Include mapping file in the Export Analytical Model and Update from Analysis/Design dialog boxes. As you select this option, you can specify the mapping file to be used. The Update Options are Preview and Update. The Preview option gives you a chance to see what members are modified or missing before you update the database. These options identify members that currently exist in the SP3D model. The term sections refers to the members whose section sizes as defined in the CIS/2 file are modified, not modified, or not available in the SP3D Catalog.

For more information related to interfacing with the analysis and detailing software, refer to Exporting and Importing Analytical Data: An Overview topic of the user guide StructuralAnalysisUsersGuide.pdf .

Quiz: 1. 2. 3. 4.

Which command enables you to import an analysis model? Why do you need a mapping file? Why do you lock members while exporting an analysis model? What can you update from analysis model?



Page 4 of 4

SP3D Structure

Recommend Documents