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Cracks

This part of the member design contains inputs related to the crack calculation (serviceability limit state). The verification is performed only for load combinations "Quasi-permanent (SLS)". The maximum crack width wmax is considered in accordance with table 7.1N. Option for user defined value is also included. Setting "Calculate crack width only at upper/bottom edge" switches off the crack control on the cross-section sides. This setting is suitable for the verification of part of the structure (for example one linear meter of slab).

Cracks may also arise from other causes such as plastic shrinkage or expansive chemical reactions within the hardened concrete (creeping). These factors are taken into account with the help of creep coefficient. The value of this coefficient can be changed in the window "Creep" that can be launched by the button "Creep coefficient".

Calculation and verification of cracks are described in the chapter "Serviceability limit state" of the theoretical help.

Input frame in the part "Cracks"

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