Design defaults

These parameters are used for the design of minimum required reinforcement if no member data have yet been defined on particular members.

General

Use min concrete cover	The minimal values of cover based on detailing rules specified in the code are used.
User defined concrete cover	The user may input the thickness of cover layer.

Design working life [years]	It is possible to set either 50 or 100 years of lifespan of the structure. EN 1992-1-1:2004, art. 4.4.1.2(5), table 4.3 N
Exposure class	The exposure classes are related to environmental conditions and can be found in table 4.1 (X0, XC1, XC2, XC3, XC4, XD1, XD2, XD3, XS1, XS2, XS3, XF1, XF2, XF3, XF4, XA1, XA2, XA3). Note: Exposure classes 5(XFy) and 6 (XAy) are not taken into account for concrete cover calculation, see EN 206-1, section 6. EN 1992-1-1:2004, art. 4.2(2), table 4.1
Abrasion class	The minimum concrete cover cmin should be increased for concrete abrasion: - Abrasion class XM1: cmin + 5 mm; - Abrasion class XM2: cmin + 10 mm; - Abrasion class XM3: cmin + 15 mm Note: The abrasion class default is ‘None’ and cmin is not increased. EN 1992-1-1:2004, art. 4.4.1.2(13)
Delta c. dev	The allowance in design for deviation Deltac.dev is: - for ‘Prefabricated’: 5 mm; - for ‘In-situ concrete’:10 mm; - for ‘Concrete against prepared ground’: 40 mm; - for ‘Concrete against soil’: 75 mm. EN 1992-1-1:2004:2004, art. 4.4.1.3
Special quality control	See EN 1992-1-1:2004 table 4.3 N.

Upper cover	Defines thickness of concrete cover at the upper surface.
Upper	Specifies diameter and type of reinforcement at the upper surface.
Stirrup	Specifies diameter and type of reinforcement for stirrups (links).
Lower	Specifies diameter and type of reinforcement at the lower surface.
Lower cover	Defines thickness of concrete cover at the lower surface.

Items Upper cover and Lower cover are accessible only if User-defined concrete cover has been selected.

Concrete cover	Defines the thickness of concrete cover.
Main	Specifies diameter and type of main reinforcement.
Stirrup	Specifies diameter and type of reinforcement for stirrups (links).

: Item Concrete cover is accessible only if User-defined concrete cover has been selected.

Upper cover	Defines thickness of concrete cover at the upper surface.
Reinforcement	Specifies the type of reinforcement.
Upper	Specifies diameter of reinforcement for the upper surface.
Lower	Specifies diameter of reinforcement for the lower surface.
Lower cover	Defines thickness of concrete cover at the lower surface.

: Items Upper cover and Lower cover are accessible only if User-defined concrete cover has been selected.

If the option is ON, the sway frame is considered. This is the default setting that is used if:

- the user has not defined this value at the beam directly (in the buckling lengths settings dialogue), or

- if the corresponding parameters in the buckling lengths settings dialogue is set to "Settings".

Y-Y	Sway in YY direction.
Z-Z	Sway in ZZ direction.