Ultimate limit state - Shear
The parameters in the Shear group control the calculation of shear reinforcement.
1D structures - beams
Method of shear proof
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Constant strut inclination |
Choose this option to calculate shear reinforcement according a non-standard method which assumes the strut inclination with 45°. |
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Variable strut inclination |
Choose this option to calculate shear reinforcement according to the variable strut inclination method. ONORM B 4700: Art. 3.4.4.2 |
Variable strut inclination method
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Minimum angle of the concrete strut with the longitudinal axis |
The lower limiting value for the angle between the concrete strut and the longitudinal beam axis. ÖNORM B 4700: Art. 3.4.4.2(7), Gl. (23) Default value = 31° (tan 0.6) |
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Maximum angle of the concrete strut with the longitudinal axis |
The upper limiting value for the angle between the concrete strut and the longitudinal beam axis. ÖNORM B 4700: Art. 3.4.4.2(7), Gl. (23) Default value = 58° (tan 1.6) |
2D structures - slabs
Shear mode
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At most 50% of traction reinf. is anchored before the support |
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More than 50% of traction reinf. is anchored before the support |
Shear strut inclination control
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Variable strut inclination method |
Choose this option to calculate shear reinforcement according to the variable strut inclination method. ONORM B 4700: Art. 3.4.4.2 |
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Constant strut inclination method |
Choose this option to calculate shear reinforcement according a non-standard method which assumes the strut inclination with 45°. |
Shear effect upon the net reinforcement
Shear reinforcement in a net reinforcement may have an effect on the results ("shear effect"). These parameters control the way this effect is taken into account.
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no shear effect upon the net reinforcement |
No shear effect are considered according to Art. 3.4.4.2(15). Structural measures are considered according to Art. 3.4.4.2(16). |
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shear effect will be considered in SR2 only |
Shear effect are considered in Shear Region 2 only according to Art. 3.4.4.2(15), Fig.19. |
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shear effect will be generally be considered |
Shear effect are considered generally, i.e. also in Shear Region 1 (non-standard procedure for special investigations). |