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Design in RSTAB 7

RSTAB 7 Provides Many Effective Tools for Easy and Fast Design of Structural Model 
For the member design, RSTAB 7 offers an extensive library of sections and materials. Other untypical sections can be created using the SHAPE-MASSIVE or SHAPE-THIN programs. Sections designed in these programs can be loaded to RSTAB 7, where they are used in the same way like common library sections.
 
Useful tools like object grabs or a freely definable working grid make the graphic input easy as well as helping guidelines. Model creation is also accelerated by the data import in a DXF format. Besides model loading, the DXF file can be loaded as the referential drawing and can be used as the background for the designed static model.
 
To design structures that are often repeated, a number of generators is implemented in RSTAB 7. By entering general parameters and using the generators, you can create very quicky e.g. continuous beams, 3D frames, 3D halls, girder grillages, truss girders, spiral staircases, rounded and general arcs, space bearing structures of the Bernauer system, 3D cells, wall columns, roof structures and many more. For some structure types (e.g. 3D hall), loads are generated automatically besides the structure.
 
The possibility to enter data parametrically represents great help for the user. In this way you can design frequently repeated structures by modification of input parameters very quickly. All numeric values can be defined subject to certain parameters in the formula editor. When the parameters are changed, the structural model is adapted immediately.
 
By pressing the relevant button, you can change the required viewing angle and work plane. Any viewing angle can be set using the mouse - by the middle button you move the view, with the CTRL key pressed you select the view rotation.

RSTAB 7 offers the possibility of different structural cutouts to improve the model overview. The created cutouts can be saved under a certain name and used consequently. At the same time, it is possible to set the partial transparency of the remaining structural part that is not active.

The function Detailed Setting is used for a quick selection of some structural elements. This function also enables to choose elements with certain common features, on the basis of selected parameters.
 
The input of the structural model can proceed optionally in 2D or 3D. RSTAB 7 uses standard procedures extended on the Windows platform that enable very fast processing during the design of the first project. Default member types as e.g. "beam", "truss girder" or "tension member" make the definition of member properties easier.
 
RSTAB 7 contains a new, remade, extensive material library that supports a series of new codes and strandards. You can define different types of member non-linearity, for example creeping, tearing or slippage and also non-linear supports and releases. Using the stress-strain diagrams, you can set any support conditions. You can also enter "failure at compression" or "collapse" from a certain value of the support force.
 
In addition, you can define members eccentrically, for example taper, rigid connection, non-linear spring with play or with friction and cohesion, eventually as an elastic foundation. If you want to enter loads on several component members, you can connect them to make sets of members and define loads on member sets consequently. Load ordinates are modified automatically when the intermediate nodes are changed.
 
RSTAB 7 can recalculate the surface load to defined members. To enter wind loads according to EN 1991-1-4 and snow loads according to EN 1991-1-3 for frameworks, you can use load generators that create corresponding load cases depending on a roof shape. The program also supports areal loads (for example a load due to icing) during the analysis.
 
You can modify the numbering of nodes and members to suit your needs, various options and helping tools are available for renumbering. Imperfections can be now defined for sets of members as well, hence the numbering of contained members can be arbitrary.
 
New functions are introduced for modification of members. Now you can lengthen the members or divide them graphically. To enter new members, you can specify the member length instead of the end node. The search function was improved to find specific members or nodes in a structure faster.
 
The dialog box for load input was extended with other load types such as precamber. Now you can also define parabolic or quadrangle loads. Moreover, you can relate the loads both to member sets (continuous members) and to member lists (branching members). You can add your comments to all loads.
 
Releases at member ends can be also entered with rotation. You can also modify the structure in an active rendering mode. To correct small deviations from node coordinates, RSTAB 7 offers the function Regenerate Structure.
 
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