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Useful Program Features
The Knowledge Base includes technical articles on a wide array of structural analysis and design topics.
These articles are intended to help you navigate through the Dlubal programs, learn efficient tips and tricks, and provide further insight into the program features.
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Parts lists give information about which and how many parts are necessary for creating a building. They are the basis for identifying the needs and purchasing the components. Parts lists can be created in the design modules such as RF-/STEEL EC3, RF-/TIMBER Pro and so on. Additionally, a customized parts list can be created with the RF-COM/RS-COM interface.
RFEM and RSTAB are able to cover a large number of branches in the field of building and construction industry with their generally usable structural frame analysis and FEM programs. The design of cable structures is thus also possible in both software solutions. In the following, some assistance tools for modeling and design will be presented.
RF-COM/RS-COM is a programmable interface which allows the user to expand the main programmes RFEM and RSTAB by customized input macros or post‑processing programmes. In this article, a tool to copy and move selected guidelines in RFEM will be developed. It is possible to copy or move the guidelines also to another work plane. VBA in Excel will be used as programming environment.
Part 4.1 of this article series described the connection of the RF‑/STEEL EC3 add‑on module and the members and load combinations to be designed were already defined. This part will focus on the optimization of cross‑sections in the module and the transfer to RFEM. The elements already explained in the previous parts are not described again.
Part 4.1 and 4.2 of this article series describes the optimization of a frame using the RF‑/STEEL EC3 add-on module. The fifth part explains how to link the module and get the relevant members. The elements already explained in the previous parts are not described again.
The first part of the post about the COM interface describes opening and closing RFEM. The programming language VBA is used in Excel, however the program sequence is the same as for programming with C#. First, it is necessary to add the corresponding reference in VBA to recognize the commands for the interface. The figure on the left shows the example of RFEM 5.
As of RFEM 5.06 and RSTAB 8.06, the examples and help files for programming the COM interface are not only available on the Internet but they are also included in the installation. For this, there is the ‘SDK’ folder in the project directory (usually C:\Users\Public\Documents\Dlubal).
Part 2.1 of the article series about the COM interface described creating and modifying elements on an example of a member. In the third part, these core elements are used again to create nodal supports, loads, load combinations, and result combinations. Thus, the model created in the second part will be extended. Therefore, the elements explained in Part 1 and Part 2.1 are not described again.
The first part of the article series about the COM interface described opening and creating a model in RFEM. The second part explains creating and modifying elements on an example of a member. The elements described in Part 1 will not be explained here again.
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