Detailing provisions

Columns

Longitudinal reinforcement

Min. bar distance	The minimum clear distance between individual parallel bars (for Design and Drawing). ÖNORM B 4700: Art.5.2.(2) Default value = 20 mm
Max. bar distance	The maximum clear distance between individual parallel bars (for Design and Drawing). ÖNORM B 4700: Art. 9.2.2(3)
Min. number of bars in circular column	The minimum numbers of bars in a column of a circular cross-section. ÖNORM B 4700: Art. 9.2.2(2) Default value = 6
Min. bar diameter	The minimum diameter of bars in columns. ÖNORM B 4700: Art. 9.2.2(1), Tab. 17 Default value = 12 mm

Stirrups (links)

Min. stirrup diameter

Specifies the minimal stirrup diameter.

ÖNORM B 4700: Art. 9.2.3(1)

Max. longitudinal distance between stirrups

The meaning is clear from the item name.

ÖNORM B 4700: Art. 9.2.3(4)

Max longitudinal distance between stirrups in place where columns is connected with beam or slab

The meaning is clear from the item name.

ÖNORM B 4700, Art. 9.2.3(4)

Default value = 0,6 x max D

Beams

Longitudinal reinforcement

Min bar distance

The minimum clear distance between individual bars (for Design and Drawing).

ÖNORM B 4700, Art. 5.2(2)

Default value = 20 mm

Max. bar distance

The maximum clear distance between individual parallel bars (for Design and Drawing).

Default value = 300 mm

Stirrups (links)

Maximum transverse distance between stirrups

The maximal transverse spacing of legs must not exceed 800 mm or d.

ÖNORM B 4700: Art. 3.4.4.2(11)

Maximum longitudinal spacing of stirrups

The maximal longitudinal spacing of successive links is related to the shear force (Vsd).

ÖNORM B 4700: Art. 3.4.4.2(11)

Calculation (columns and beams)

This group contains switches for checks that can be applied during design and drawing of reinforcement.

Check min. bar distance	Check for minimal distance of bars during design and drawing.
Check max. bar distance	Check for maximal distance of bars during design and drawing.

2D Structures

Reinforcement

Min. transverse reinforcement percentage	Minimal amount of transverse reinforcement, determined as a percentage of main reinforcement, Default value = 20%.
Min. net reinforcement percentage (in general)	Minimum percentage of longitudinal reinforcement, unconditionally. Default value = 0%.
Automatic calculation of minimum pressure reinforcement	Shells and Walls only: If ON, the corresponding reinforcement is calculated automatically. ÖNORM B 4700: Art. 3.4.9.2, Eq. (60)
Min pressure reinforcement percentage	Shells and Walls only: Minimum part of concrete cross-section that should act as compression reinforcement. Default value = 0%.
Maximum percentage inbending pressure zone	Plates only: Definition of the maximum percentage of reinforcement in the bending pressure zone related to the concrete pressure force. Compare with SIA 162, Art. 3.24.16 Default value = 50%.
Automatic calculation of minimum tension reinforcement	If ON, the corresponding reinforcement is calculated automatically. ÖNORM B 4700: Art. 3.4.9.4(1), Eq. (61)
Min tension reinforcement percentage on face+Zp	Minimum percentage of tension reinforcement at the surface with positive Z co-ordinate (in the local coordinate system of the 2D member. Default value = 0%.
Min tension reinforcement percentage on face–Zp	Minimum percentage of tension reinforcement at the surface with negative Z co-ordinate (in the local coordinate system of the 2D member) or at each of the Wall faces, respectively. . Default value = 0%.
Max reinforcement percentage in cross-section	Maximal part of concrete cross-section that should act as reinforcement. ÖNORM B 4700: Art. 3.4.9.2 and/or Art. 3.4.9.3 Default value = 8%.
Automatic calculation of min shear reinforcement	If ON, the corresponding reinforcement is calculated automatically. ÖNORM B 4700, Art. 3.4.9.4(2), Eq. (62)
Min shear reinforcement	Minimal part of concrete cross-section that should act as shear reinforcement. Default value = 0.11%.

Special program restriction

Virtual strut reduction factor

It considers the diminished actual concrete strength in a 2D cracked continuum.

Values lower or equal to 100 are valid only.

(100 % = full concrete strength).