- More than 45,000 users in 95 countries
- One software package for all application areas
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- Short learning time and intuitive handling
- Excellent price/performance ratio
- Flexible modular concept, extensible according to your needs
- Scalable license system with single and network licenses
- Proven software used in many well-known projects
Why Dlubal Software?
Wind Simulation & Wind Load Generation
With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
In this technical article, a pendulum column with a centrally acting axial force is to be verified by means of the RF-/STEEL EC3 add-on module according to EN 1993-1-2. using the National Annex of Germany.
Using the RF-TIMBER AWC module, timber column design is possible according to the 2018 NDS standard ASD method. Accurately calculating timber member compressive capacity and adjustment factors is important for safety considerations and design. The following article will verify the maximum critical buckling in RF-TIMBER AWC using step-by-step analytical equations per the NDS 2018 standard including the compressive adjustment factors, adjusted compressive design value, and final design ratio.
Limitation of crack width according to DIN EN 1992-1-1 with and without direct calculation in RF-CONCRETE
Eurocode 2 provides two ways to perform a crack width analysis. On the one hand, the crack width analysis according to 7.3.3 can be performed without direct calculation by means of tables for the limitation of the bar spacing and diameter. On the other hand, the crack width wk can be determined directly according to 7.3.4 and compared with a limit value.
When creating structural calculations, the derivation of forces from the roof to the foundations is one of the central tasks of the calculation in addition to the dimensioning of the cross-sections themselves.
Reinforced concrete surface design for slabs, plates, and walls is possible in the RF-CONCRETE Surfaces module according to the ACI 318-19 or the CSA A23.3-19 standard. A common approach for slab design is the use of design strips for determining the average one-way internal forces over the width of the strip. This design strip method essentially takes a two-way slab element and applies a simpler one-way approach to determine the required reinforcement needed along the strip length.
In RF-PUNCH Pro, you can perform the punching shear design on wall corners and wall ends. The basis for the design is the punching load, which is automatically determined from the RFEM internal forces in the connected surface. Since the surface internal forces from the RFEM calculation may be subject to the influence of singularity locations, this can also have a negative influence on the determined punching load at the wall corner or end. This article describes possible optimization options that you can use to minimize this unfavorable influence.
With the RF-STABILITY or RSBUCK add-on modules for RFEM and RSTAB, it is possible to perform eigenvalue analyzes for member structures in order to determine the effective length factors. The effective length coefficients can then be used for the stability design.
Digitization in construction is progressing with increasing dynamics. Structural engineers, a smaller group in the construction industry, are not always regarded as engineers who immediately jump on all new trains. Often for good reason. Not infrequently, this is the reason why topics such as the application of the BIM method are not yet the standard here. However, the past few years have shown that a rethink is beginning and new digital trends are openly absorbed and applied.
Both the determination of natural vibrations and the response spectrum analysis are always performed on a linear system. If nonlinearities exist in the system, they are linearized and thus not taken into account. Straight tension members are very often used in practice. This article will show how you can display them approximately correctly in a dynamic analysis.
Pay particular attention to connection points of members and surfaces when you deal with mixed systems because not all internal forces can always be transferred without difficulty at the coupling location.
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