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- One software package for all application areas
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- 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.
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.
In the existing standard, there were no regulations for the distribution of snow loads for elevated solar thermal and photovoltaic systems on roofs. It was only advised to distribute the loads. Only with the National Annex DIN EN 1991-1-3/NA: 2019-04, concrete rules have been taken for this.
Nonlinear Calculation of a Floor Slab Made of Steel Fiber Reinforced Concrete in the Ultimate Limit State with RFEM
Steel fiber reinforced concrete is nowadays mainly used for industrial floors or hall floors, for foundation plates with low loads, basement walls and basement floors. Since the publication of the first guideline by the German Committee for Reinforced Concrete (DAfStb) about steel fiber reinforced concrete in 2010, the structural engineer can use standards for the design of the composite material steel fiber reinforced concrete, which makes the use of fiber reinforced concrete increasingly popular in construction. This article describes the nonlinear calculation of a foundation plate made of steel fiber reinforced concrete in the ultimate limit state with the FEA software RFEM.
The following study compares the wind pressure on a tall building obtained by RWIND Simulation with the results published by Dagnew et al. at the 11th Americas Conference on Wind Engineering in June 2009. In this paper, the Commonwealth Advisory Aeronautical Council (CAARC) building is used as a model and results of several different numerical methods are compared with experimental data obtained from wind-tunnels.
In order to consider inaccuracies regarding the position of masses in a response spectrum analysis, the standard EN 1998-1 specifies rules which have to be applied in both the simplified and multi-modal response spectrum analysis. These rules describe the following general procedure: The story mass must be shifted by a certain eccentricity, which results in a torsional moment.
The wind load of rectangularly rounded structural components is a complex matter. The equivalent forces from wind load depend on the strength of the circulating wind load and the component geometry.
When modeling a reinforced concrete rib with a masonry wall above, there is the risk that the rib is underdesigned if the structural behavior of the masonry is not correctly considered and the connection between masonry wall and downstand beam is not modeled sufficiently accurate. This article deals with this issue and shows possible modeling options of such a structure. In this example, the reinforcement is determined only from the internal forces and without any secondary minimum reinforcement.
The wind, which blows parallel to the surfaces of a structure, can generate friction forces on these surfaces. This effect is mainly important for very large structures.
DIN EN 1998-1 with the National Annex DIN EN 1998-1/NA specifies how to determine seismic loads. The standard applies to structural engineering in seismic areas.
In Germany, DIN EN 1991-1-4 with the National Annex DIN EN 1991-1-4/NA regulates the wind loads. The standard applies to civil engineering works up to an altitude of 300 m.
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