In the RFEM 6 and RSTAB 9 programs, it is possible to group objects based on different criteria. Hence, objects that meet the defined criteria can be selected and edited at the same time. This is possible with the “Object Selection” tool, which is comparable to “Special Selection” in RFEM 5. This article will show you how to group objects with “Object Selection" as a new guide object of RFEM 6 or RSTAB 9.
In accordance with Sect. 6.6.3.1.1 and Clause 10.14.1.2 of ACI 318-19 and CSA A23.3-19, respectively, RFEM effectively takes into consideration concrete member and surface stiffness reduction for various element types. Available selection types include cracked and uncracked walls, flat plates and slabs, beams, and columns. The multiplier factors available within the program are taken directly from Table 6.6.3.1.1(a) and Table 10.14.1.2.
You can use the selection options in the printout report to receive the detail results (in short or long form) to illustrate the individual buckling modes with the relevant buckling analysis.
Inserting holes in surfaces is very easy due to the large selection of tools. In order to insert holes or drilling in solids, it is necessary to keep in mind that an opening at the beginning and the end of a continuous hole must be created, as well as a surface that separates the hole from the solids.
Sections are an excellent way to display and evaluate results clearly. In the RFEM and RSTAB section dialog boxes, you can display several result types at the same time.
For a clearer display of the structure, you can display it in different colors. The corresponding selection can be opened by right-clicking the work window.
The RX‑TIMBER stand-alone program offers you the option to optimize the lateral-torsional bracing. With this selection, the program iteratively determines the required minimum length of the lateral-torsional bracing.
In Part 1, the selection of the design criteria for dimensioning the reinforcement for the serviceability limit state design in RF‑CONCRETE Members and CONCRETE was explained. Now, we go into detail for the function "Find economical reinforcement for crack width design".
When editing elements via the COM interface, selecting elements is often a problem because it cannot be carried out visually via the work window. The selection can be particularly difficult for models that have been created via the program interface and are then to be modified using a separate program. Apart from the exception, when the selection was made previously via RFEM, there are several alternatives for programming.
In accordance with Sec. 6.6.3.1.1 and Sec. 10.14.1.2 of ACI 318-14 and CSA A23.3-14, respectively, RFEM effectively takes into consideration concrete member and surface stiffness reduction for various element types. Available selection types include cracked and uncracked walls, flat plates and slabs, beams, and columns. The multiplier factors available within the program are taken directly from Table 6.6.3.1.1(a) and Table 10.14.1.2.
The product range of Dlubal Software contains various modules for design of steel and timber connections. The RF-/JOINTS Steel – Column Base add-on module allows you to analyse footings of hinged or restrained steel column bases. The fastener selection, foundation geometry, and material quality are crucial for the cost-effective and safe design of the column base.
RFEM and RSTAB provide a wide range of selection options. Some of the previous posts have already described selection using "Special Selection" or tables.
In the global selection of the printout report, you can select in the lower "Display" section whether you want to create a table of contents. The table of contents of the printout report usually requires too much space when displayed in one column.
In order to facilitate the selection of the corresponding line release, the axis system of the line release appears when selecting a line release. In the case of a line hinge, the orientation is often different; therefore, the representation has been improved in the pre‑selection for line hinges.
RFEM and RSTAB provide the export interface ("File" → "Export") to export model and load data, as well as results, to Excel or in a CSV file in one step. You can select the tables to be exported in the "Export Tables" section. The "Only selected tables" option allows you to export only a specific selection of tables. Use the [Select Load Cases and Tables for Export] button to open the corresponding dialog box.
In RFEM and RSTAB, the check boxes for deformation in result diagrams are selected by default. To avoid creating a new user-defined result display every time, you can save the selection of check boxes displayed on the left.
You can quickly copy nodal loads to other nodes using the "Copy Nodal Load" option in the shortcut menu. To do this, select the nodal loads to be copied first, then click the "Copy Nodal Load" option in the shortcut menu. A "Multiple Selection" window appears where you can enter the relevant nodes to which the nodal load is to be copied. After clicking "OK" to close the window, the nodal load is copied.
The "Special Selection" function allows you to select model data with specific properties. Starting with version 5.05.0018, it is possible to select loads as well. Furthermore, you can add model data and loads to an existing selection item or remove them from it.
You can select an object in RFEM or RSTAB by simply clicking it. However, only the last object clicked will stay selected. In order to select several objects at a time, press the Control key while clicking. Since this procedure is not always possible, you can use the "Add to Selection" function in the toolbar or in the "Edit" → "Select" menu.
In RFEM and RSTAB, there are several ways to select a part of the structural model for further processing. The most frequently used selection option is definitely "selection using window". Depending on the size of the structure, the simultaneous selection of several areas of the structure using this option may be time-consuming, since the unwanted model parts are selected as well.
As of version X.04.0096, RF‑/TIMBER Pro also allows you to design other material categories such as softwood, hardwood, and glulam timber as a member in compliance with EN 1995‑1‑1. The design spectrum has been expanded for the material categories LVL, Plywood, OSB, Particleboard, and Fiberboard. In order to facilitate the selection in the materials library, there is another function for targeted filtering by plate or wall stress.
Dlubal Software Programs provide a materials library. This library covers almost all materials commonly used in civil engineering, including the corresponding parameters for calculation and design.
RFEM version 5.04.xx includes an adjustment when printing graphics in the printout report. In order to display graphics in the printout report, you have to select the respective check boxes in the Global Selection tab of the Printout Report Selection window (see the figure). Checking the boxes unlocks the corresponding tabs for the tables. where you can select the tables to be displayed.
The local coordinate system of a member is particularly important when defining member end releases and member nonlinearities. The definitions follow the orientation of the axes. You can temporarily adjust the visibility of these member axes by means of preselection.