Concrete member and surface structure modeled in RFEM. The webinar in the link below demonstrates the design workflow according to the ACI 318-14 standard utilizing the RF-CONCRETE Members and Surfaces add-on modules.
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ACI 318-14 Concrete Structure
| Number of Nodes | 101 |
| Number of Lines | 141 |
| Number of Members | 8 |
| Number of Surfaces | 16 |
| Number of Load Cases | 5 |
| Number of Load Combinations | 31 |
| Number of Result Combinations | 2 |
| Total Weight | 219.224 tons |
| Dimensions (Metric) | 14.585 x 11.585 x 6.181 m |
| Dimensions (Imperial) | 47.85 x 38.01 x 20.28 feet |
| Program Version | 5.23.00 |
You can download this structural model to use it for training purposes or for your projects. However, we do not assume any guarantee or liability for the accuracy or completeness of the model.
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Duration: 00:00:45 min
Knowledge Base
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For the design of concrete surfaces, the rib component of the internal forces can be neglected for the ULS calculation and for the analytical method of the SLS calculation, because this component is already considered in the member design. To do this, select the check box in the "Details" dialog box. If no rib was defined, this function is not available.
Shrinkage and creep are time-dependent deformation properties of concrete that usually have to be considered in the serviceability limit state design.
For reinforced concrete components and structures with structural behavior considerably influenced by the effects of the second-order analysis, Eurocode 2 provides the general method based on a nonlinear determination of internal forces according to the second-order analysis (5.8.6), as well as the approximation method based on the nominal curvature (5.8.8).
The aim of this technical article is to perform a design according to the general design method of Eurocode 2, using the example of a slender reinforced concrete column.
The aim of this technical article is to perform a design according to the general design method of Eurocode 2, using the example of a slender reinforced concrete column.
In simulations using the finite element method, the mesh is of crucial importance. This article describes the essential features of a mesh convergence study to determine the required mesh refinement for sufficiently accurate results.
![Result Window 2.1 in RF-CONCRETE Surfaces with Calculated Reinforcement Surfaces in [cm²/m]](/en/webimage/018953/2268354/01-de.png?mw=350&hash=ef629ee1c00df85a43bf1b3ef20a5415a41393a1)
The deformation process of the global deformation components can be represented as a movement sequence.
Result values for deformations, internal forces, stresses, and so on, can be displayed on the isolines.
The results of solid stresses can be displayed as colored 3D points in the finite elements.
In addition to the "Mesh Refinement" and "Specific Direction" options for solids, you can also activate the "Grid for Results" option, which allows for organizing grid points in the solid space. Among other things, the center of gravity can be set as the origin. There is also the option to activate or deactivate the visibility of the grid for numerical results in "Navigator – Display" under Basic Objects.
Is it also possible to reduce the shear force on a support or perform design with the shear force at a distance d to the support in RF‑CONCRETE Surfaces?
For design with CONCRETE NL, is the creep applied to the entire cross-section, or only to the concrete compression zone?
When I create a user-defined result value, the RFEM solver window opens briefly and the calculation is apparently performed again. Why? I have already performed the calculation.
I am trying to verify RF‑CONCRETE Surfaces based on the results of the example in the manual. Chapter 2.4.3 describes the determination of the statically required reinforcement. Unfortunately, I cannot create an example that exactly represents these results. Can you send me the corresponding example?
Do I have to add the reinforcement for ribs from RF‑CONCRETE Members and RF‑CONCRETE Surfaces?
Is the compression reinforcement calculated for the ultimate limit state design in RF‑CONCRETE Surfaces? Or is it only possible in RF‑CONCRETE Members?
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