- Over 86,000 users in 95 countries
- One software package for all application areas
- Free support by experienced engineers
- Short learning time and intuitive / self-explanatory software
- Excellent price-performance ratio
- Flexible modular concept that can be extended as required
- Scalable license system with single-user and network licenses
- Respected and proven software in many well-known projects
Why Dlubal Software?
Wind Simulation & Wind Load Generation
With the stand -alone program RWIND Simulation, you can simulate wind flows around simple or complex structures by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
RFEM and RSTAB can calculate the critical load factor for each load case (LC) and each load combination (CO) in the case of a geometrically nonlinear calculation (second-order analysis and following).
The member boundary conditions have a decisive influence on the ideal critical moment for lateral-torsional buckling Mcr. The program uses a planar model with four degrees of freedom for the determination. The corresponding coefficients kz and kw can be defined individually for standard -compliant cross -sections. This allows you to describe the degrees of freedom that are available at both member ends due to the support conditions.
The RF-STABILITY add-on module determines the critical load factors, effective lengths and mode shapes of RFEM models. The stability analyzes can be carried out according to various eigenvalue methods, which have their advantages depending on the system and computer configuration.
When analyzing structural elements susceptible to buckling by using the modules RF‑STABILITY (for RFEM) or RSBUCK (for RSTAB), it might be necessary to activate the internal division of members.
Very small torsional moments in the members to be designed often prevent certain design formats. In order to neglect them and still perform the designs, you can define a limit value in RF-/STEEL EC3 from which torsional shear stresses are taken into account.
Structure stability is not a new phenomenon when referring to steel design. The Canadian steel design standard CSA S16 and the most recent 2019 release is no exception. Detailed stability requirements can be addressed with either the Simplified Stability Analysis Method in Clause 8.4.3 or, new to the 2019 standard, the Stability Effects in Elastic Analysis method provided in Annex O.
The RF-/STEEL EC3 add-on module automatically transfers the buckling line to be used for the flexural buckling analysis for a cross-section from the cross-section properties. In particular for general cross -sections, but also for special cases, the assignment of the buckling line can be adjusted manually in the module input.
The function, which is also known as shifting, allows you to calculate critical load factors beyond a user‑defined initial value. A determination of the critical load factors is usually done from the smallest to the greatest critical load factor.
When optimizing cross -sections in the add -on modules, you can also select any defined cross -section favorites lists - in addition to the cross -sections from the same cross -section row as the original cross -section.
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.
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