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Answer
The RF / DYNAM Pro  Equivalent Loads addon module only contains a linear analysis of structures. If you now apply a nonlinear model for the calculation, RF / DYNAM Pro  Equivalent Loads will modify it internally and treat it as a linear model. The nonlinearity in your model is the masonry, which can not absorb tensile forces.
The problem is that: RF / DYNAM Pro  Equivalent Loads linearly calculates the equivalent loads and exports the load cases from them. However, the load cases are subsequently calculated nonlinearly on the basis of the material model, which is not entirely correct. In addition, the results are superimposed according to the SRSS or CQC method, which results in tensile and compressive forces being present in the model.
In this case, you could, for example, change the masonry to isotropic linear and work with linear properties of the material model. In addition, you could introduce line hinges at this location, which you can use to avoid moment restraint, for example.

Answer
The material model according to TsaiWu unifies plastic with orthotropic properties. This way, you can enter special modelings of materials with anisotropic characteristics such as plastics or timber. When the material is plasticized, stresses remain constant. A redistribution is carried out according to the stiffnesses available in the individual directions. The elastic zone corresponds to the material model Orthotropic  3D. For the plastic zone, the yielding according to TsaiWu applies:${\text{f}}_{\mathrm{crit}}\left(\mathrm\delta\right)=\frac1{\mathrm C}\left[\frac{\left({\mathrm\delta}_{\mathrm x}{\mathrm\delta}_{\mathrm x,0}\right)^2}{{\mathrm f}_{\mathrm t,\mathrm x}{\mathrm f}_{\mathrm c,\mathrm x}}+\frac{\left({\mathrm\delta}_{\mathrm y}{\mathrm\delta}_{\mathrm y,0}\right)^2}{{\mathrm f}_{\mathrm t,\mathrm y}{\mathrm f}_{\mathrm c,\mathrm y}}+\frac{\left({\mathrm\delta}_{\mathrm z}{\mathrm\delta}_{\mathrm z,0}\right)^2}{{\mathrm f}_{\mathrm t,\mathrm z}{\mathrm f}_{\mathrm c,\mathrm z}}+\frac{{\mathrm\tau}_{\mathrm{yz}}^2}{{\mathrm f}_{\mathrm v,\mathrm{yz}}^2}+\frac{{\mathrm\tau}_{\mathrm{xz}}^2}{{\mathrm f}_{\mathrm v,\mathrm{xz}}^2}+\frac{{\mathrm\tau}_{\mathrm{xy}}^2}{{\mathrm f}_{\mathrm v,\mathrm{xy}}^2}\right]$with:${\mathrm\delta}_{\mathrm x,0}=\frac{{\mathrm f}_{\mathrm t,\mathrm x}{\mathrm f}_{\mathrm c,\mathrm x}}2$${\mathrm\delta}_{\mathrm y,0}=\frac{{\mathrm f}_{\mathrm t,\mathrm y}{\mathrm f}_{\mathrm c,\mathrm y}}2$${\mathrm\delta}_{\mathrm z,0}=\frac{{\mathrm f}_{\mathrm t,\mathrm z}{\mathrm f}_{\mathrm c,\mathrm z}}2$$\mathrm C=1+\left[\frac1{{\mathrm f}_{\mathrm t,\mathrm x}}+\frac1{{\mathrm f}_{\mathrm c,\mathrm x}}\right]^2\frac{{\mathrm E}_{\mathrm x}{\mathrm E}_{\mathrm p,\mathrm x}}{{\mathrm E}_{\mathrm x}{\mathrm E}_{\mathrm p,\mathrm x}}\mathrm\alpha+\frac{{\mathrm\delta}_{\mathrm x,0}^2}{{\mathrm f}_{\mathrm t,\mathrm x}{\mathrm f}_{\mathrm c,\mathrm x}}+\frac{{\mathrm\delta}_{\mathrm y,0}^2}{{\mathrm f}_{\mathrm t,\mathrm y}{\mathrm f}_{\mathrm c,\mathrm y}}+\frac{{\mathrm\delta}_{\mathrm z,0}^2}{{\mathrm f}_{\mathrm t,\mathrm z}{\mathrm f}_{\mathrm c,\mathrm y}}$The yielding condition can be thought of as an elliptical surface in a sixdimensional space of tension.If one of the three stress components is applied as a constant value, the surface can be projected onto a threedimensional stress space. Projection of yielding surfaces for normal stresses according to TsaiWu If the value for fy (σ) is smaller than 1, the stresses lie within the elastic range. The plastic zone is reached as soon as fy (σ) = 1; values greater than 1 are not allowed. The model behavior is idealplastic, which means no stiffening takes place. 
Answer
When creating a material that has been assigned a nonlinear material model, the license for RFMAT NL is used. The license is not released until you close the file or change the material model. The license is therefore used for the entire duration, even if no calculation is carried out.

Answer
You can do this with the RFLOADHISTORY addon module.
It is important that the material model "Plastic 2D / 3D" or "Plastic 1D" is used. How does it work ? Dlubal info tags shown.

Answer
The modulus of elasticity is calculated for each step of the defined diagram according hooks law ε=σ/E.The modulus of elasticity is displayed on the right side of the diagram (picture 1). 
Answer
The addon module RFMAT NL is already integrated in RFEM 5. It is assumed that the following material models can be used:Isotropic Plastic 1DIsotropic Plastic 2D/3DIsotropic Nonlinear Elastic 1DIsotropic Nonlinear Elastic 2D/3DOrthotropic plastic 2DOrthotropic 3D plasticIsotropic Masonry 2DIsotropic damage 2D / 3D 
Answer
No, it is not absolutely necessary to calculate according to the secondorder or large deformation analysis when using a nonlinear material model. The material nonlinearity is also considered in the case of the calculation according to the linear static analysis.
The calculation according to the secondorder analysis or the large deformation analysis means that the equilibrium is set on a deformed structure. So it is geometric nonlinearity.
The difference between the secondorder and large deformation is that large rotation may occur in the case of the large deformation analysis.
Thus, if there is no stability problem or if the stability problem is further analysed, the calculation according to the linear static analysis is sufficient.

Answer
The easiest case is the door lintel modelled directly on the line of the door opening without an offset. It is then necessary to generate extensions on the wall sides. In the end, the lintel thus consists of three members, as shown in Figure 01.

Answer
In order to use the "Isotropic Masonry 2D" material, the RF‑MAT NL addon module has to be licensed. Without the RF‑MAT NL license, only the material models "Isotropic linear elastic" and "Orthotropic elastic 2D/3D" are available.
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