Ultimate limit state - Punching shear

Coefficients

This group defines parameters depending on the position of the column. The first four coefficients are used to determine the minimal bending moment per unit length in X and Y direction. The values are used in accordance with Table 18.

Column position

The position of the column is selected.

Moment coefficient:

eta x top

eta x bottom

eta y top

eta y bottom

Individual moment coefficients.

DIN 1045-1, Art. 10.5.6(2)

Default values: acc. to Table 14

Beta

Coefficient taking into account the eccentricity of load

(DIN 1045-1: Art. 10.5.3(2).

Loaded area

Shape circular, with diameter not exceeding ...	Loaded area of circular shape with the maximum diameter equal to the input value. DIN 1045-1: Art. 10.5.2(1) Default value = 3.5 * d
Shape rectangular, with perimeter not exceeding ...	Loaded area of rectangular shape with the maximal perimeter equal to the input value. DIN 1045-1: Art. 10.5.2(1) Default value = 11 * d
Shape rectangular, max length/width	Loaded area of rectangular shape with the length/width ratio not exceeding the input value. DIN 1045-1: Art. 10.5.2(1) Default value = 2
Distance between the perimeter of the loaded area and the edge of the opening not exceeding ...	The maximum value of the shortest distance between the perimeter of the loaded area and the edge of opening. If the distance is exceeded, the part of the critical section contained between the two tangents drawn from the centre of the loaded are to the opening edge is taken as ineffective. DIN 1045-1: Art. 10.5.2(6) Default value = 6 * d

Shear reinforcement

Min thickness of plate

Minimal thickness of a plate where the shear reinforcement is statically required.

DIN 1045-1: Art. 10.3.3(1)

Default value = 200 mm

Shear resistance

VRd,maxMin ratio

The coefficient for the calculation of shear resistance VRd,max from VRd,ct.

DIN 1045-1: Art. 10.5.5(1), formula (107)

Default value = 1.5

Column heads

Rectangular column with rectangular column head,

lH < 1.0 hH

This option defines the determination of rcrit in the case that lH < 1.0 hH:

Rectangular area

rcrit is calculated according to DIN 1045-1: Art. 10.5.2(10), formula (97)

Equivalent diameter

User input according to DIN 1045-1: Art. 10.5.2(10)