This article overviews the detailing rules applied in AXISVM’s Reinforcement concrete (RC) modules, implemented from the EuroCode standard. It must be taken into consideration that not all of the prescribed detailing rules of EuroCode are implemented in AXISVM! In general, it is the user’s responsibility to get convinced of the correctness of the plan’s technical content!
Reinforced concrete membranes, plates and shells (RC1 module)
- 9.2.1.1 (1) – Minimal longitudinal reinforcement area
- In the surface reinforcement parameters there is the setting “Take into account the required minimum reinforcement”, which is adjustable with a checkbox. On those territories of the slab, where any required reinforcement values are displayed, and the value does not reach the minimum amount, the program applies the minimum value.
- 9.2.1.1 (3) – Maximal longitudinal reinforcement area
- If required reinforcement exceeds the maximum value, the program gives the following warning after static calculation, in the R. C. Design tab.
- 9.3.1.1 (3) – Maximal spacing of bars
- The maximum spacing of rebars are determined depending on the diameter set as a reinforcement parameter. This limitation can be displayed in the examination of required spacing result component.
- To take this into account, in the “Display parameters” “Miscellaneous settings” window the “Follow rebar layout rules for spacing” should be active.
- In the current example the maximum value in local y direction is 300 mm.
Reinforced concrete cores and walls (RC5 module)
- 8.2 – Spacing of bars
- The minimum reinforcement spacing is taken into account by the program in such a way that the rebar to be placed within the minimum spacing is marked with orange in the reinforcement bars window until it would be placed within this distance. (By fixing the position of the bar, the coloring disappears.)
- 9.6.2 (1) – Restriction for area of the vertical reinforcement
- If the regulation for the minimum cross sectional area of the vertical reinforcement is not fulfilled, then it is indicated on the information palette, and the program also gives a warning in the check window.
- Exceeding the maximum cross sectional area of vertical reinforcement is also indicated both on the information palettte and in the check window.
- 9.6.3 (1) – Minimal horizontal reinforcement
9.6.3 (2) – Maximal spacing between two horizontal bars- Certain detailing rules are also checked for the secondary reinforcement, as maximal spacing and minimal cross sectional area. If either of the two detailing rules is not complied with, the program will give a warning.
Reinforced concrete column (RC2 module)
- 8.2 – Spacing of bars
- The minimum reinforcement spacing is taken into account by the program in such a way that the rebar to be placed within the minimum spacing is marked with orange in the reinforcement bars window until it would be placed within this distance. (By fixing the position of the bar, the coloring disappears.)
- 9.5.1 (1) – Maximal ratio of dimensions
- The standard limits the maximum ratio of the cross section’s longer and shorter side lengths. This check is executed by the program, and a warning appears if it does not comply with the rules.
- 9.5.1 (2) – Minimal transverse dimension – Only in NEN-EN 1992-1-1 (in case of Dutch design code)
- When at least one of the column’s dimensions does not comply with the minimal value recorded in the relevant detailing rule, then the program gives a warning.
- 9.5.2 (1) – Longitudinal bars minimum diameter
- If a rebar is defined in the cross section with smaller diameter than which is specified by the standard, the program indicates it.
- If none of the rebars comply with the detailing rules, an error message is shown.
- If there is any rebar with appropriate diameter according to the detailing rules, then the program gives a warning, which contains the number of invalid rebars.
- 9.5.2 (2) – Minimal longitudinal reinforcement area
- If the regulation for the minimal cross sectional area of the longitudinal reinforcement is not fulfilled, then a warning is given both on the information palette and in the check window.
- 9.5.2 (3) – Maximal longitudinal reinforcement area
- When exceeding the maximal reinforcement area of the longitudinal reinforcement, then it is indicated on the information palette, and a separate warning form pops up in the check window.
- 9.5.3 (1) – Minimal diameter of transverse reinforcement
- If the diameter of the transverse reinforcement does not reach the minimum value, the program will give a warning.
- 9.5.3 (3) – Maximal spacing of transverse reinforcement
- If the spacing of the transverse reinforcement exceeds the maximal value, then the program gives a warning.
- 9.5.3 (4) – Maximal transverse reinforcement spacing’s reduction
- The fulfillment of the detailing rule regarding the maximal transverse reinforcement spacing’s reduction is supervised by the program. If it is not met, a warning is given.
Reinforced concrete beam (RC2 module)
- 8.2 – Spacing of bars
- The program takes into account the detailing rule which affects the minimum spacing of bars in case of beam reinforcement. The rebars are positioned automatically in the bottom and in the top as well. The bars must not be positioned too closely to each other, and the detailing rule will be fulfilled.
- 9.2.1.1 (1) – Minimal longitudinal reinforcement area
- The amount of calculated reinforcement could not be less, then the minimum value according to the standard’s regulation.
- 9.2.1.1 (3) – Maximal longitudinal reinforcement area
- In case of the cross sectional area of the longitudinal reinforcement exceeds the maximal value according to the standard, the reinforcement ratio’s caption turns to red.
- 9.2.1.2 (1) – Bending moment due to partial fixity of supports in case of simple supports
- In the sections of the supports the β1-times value of the maximum bending moment arising in the span is automatically considered by the program in case of simple supports as an effect of partial fixity.
- 9.2.1.4 (1) – Minimal area of bottom reinforcement in case of little or no end fixity
- In the sections of the supports the β2-times value of the reinforcement area of the middle span is considered in case of little or no end fixity.
- 9.2.2 (5) – Ratio of shear reinforcement
- The program calculates at least the amount of minimal shear reinforcement according to the regulation of minimal shear reinforcement ratio.
- 9.2.2 (6) – Maximal longitudinal spacing between shear assemblies
- The program regulates the calculated stirrup spacing according to the relevant detailing rule, so the maximum value shown can be at most the maximal stirrup spacing.
- 9.2.3 (3) – Maximal longitudinal spacing of torsion links
- This detailing rule is valid when additional stirrups need to be applied due to the design value of the torsional effect. This rule includes the 9.2.2 (6), and it can be a potentially stricter rule for the value of maximal stirrup spacing.
- 9.2.3 (4) – Maximal spacing of longitudinal bars
- When there is a need for side reinforcement against torsion, the distance between these kind of bars, or between them and corner rebars must not exceed 350 mm.
Punching (RC3 module)
- 9.3.2 (1) – Minimum slab depth for slabs which contaion shear reinforcement
- When shear reinforcement is required, the program checks if the thickness of the slab reaches the minimal thickness value according to the standard.
- 9.4.3 (1) – Maximal spacing of the link leg perimeters (≤0,75*d)
- The maximal radial rebar spacing of the link leg perimeters could not exceed the limitation value, which is given as function of the effective depth.
- 9.4.3 (1) – Minimal distance (>0,3*d)
- This detailing rule is in accordance with the limitation of 9.4.3 (4), and gives the minimal distance of the first perimeter of shear reinforcement from the edge of the support or the loaded surface.
- 9.4.3 (2) – Minimal shear reinforcement area
- The requirement regarding the minimum area of the shear reinforcement is checked in design calculations.
- 9.4.3 (4) – Maximal distance (≤d/2)
- This detailing rule is in accordance with the limitation of 9.4.3 (1), and gives the maximal distance of the first perimeter of shear reinforcement from the edge of the support or the loaded surface, and it is checked in the punching parameters.
