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The linear analysis has to be done for generation of envelopes from mobile loads (see Setup of generated loadcase).
Mesh and Solver setup values used in analysis is possible to modify in Setup > Mesh, Solver.
After successful calculation appear following message.
The construction stage analysis is performed for calculation of effects of stages with influence of effects creep and shrinkage (TDA). Effects of creep and shrinkage are performed according to EN 1992-1-1 annex B.
There is also possibility to run calculation of TDA (creep and shrinkage calculation) according to code EN 1992-2 annex B, but some necessary steps have to be done.
The main idea is to include another type (EN 1992-2) of material into one code EN 1992. There are two groups of materials (EN 1992-1-1 and EN 1992-2). Due to implementation of calculation creep and shrinkage of concrete according to EN 1992-2 is suitable to present new type of concrete material. These materials are signed similar as standard EN material with suffix EN 1992-2. New materials are following:
Materials with fck < 50 MPa are not available.
Cement class – only type R (read only)
Silica fume – check box YES/NO – influence on calculation of creep and shrinkage acc. to EN 1992-2 annex B
Relative humidity - The code EN 1992-2 is not allowed calculation creep and shrinkage for relative ambient humidity bigger then 80 %. When user uses concrete material according to EN 1992-2 and sets RH > 80 % then during start TDA calculation appears warning about relative humidity.
Long term delayed strain estimation
Long term delayed strain estimation is used acc. to chapter B.105, implementation of formula B.128. The coefficient calculated with that formula is applied on formulas for concrete aged 1 year or more:
ϕ(t;t0) (B.1) and εcd,0 (B.11) for concrete EN 1992-1-1
εcd(t) (B.116) and ϕb(t;t0) (B.118) for concrete EN 1992-2
User can set this option in material database in property of concrete for both EN concrete (see following)