Warning 155 appears once the spacing of the stirrup legs of a beam in the transverse direction exceeds the limit value st,max given by the standard (see Eurocode 2, Section 9.2.2 [8]). The problem can be solved by increasing the number of stirrup legs under the settings for the stirrup reinforcement.
Transverse Spacing stmax of Shear Reinforcement
Why does Warning 155 appear as a result of the reinforced concrete design of members for the existing stirrup reinforcement?
![Subsequent Editing of Reinforcement Proposal](/en/webimage/010438/2983532/01-EN.png?mw=512&hash=17127434c06258f349409b3e8f047f6d0e8c4ea7)
![Designing Foundations](/en/webimage/010496/2962836/01-de.png?mw=512&hash=9f2525444a7414dfb1c05a73e375e9c4fe4f47b1)
![Distribution of Shear Force Vz,red and Required Shear Reinforcement from RF-CONCRETE Members](/en/webimage/013600/2751012/Verlauf_Vz-red_uns_Asw,erf_EN.png?mw=512&hash=c649aa980732dd3169e1d1644766043594c375dc)
![Structural Reinforced Concrete Column System with Coupling Members](/en/webimage/008916/583814/KB_1572-01-en.png?mw=512&hash=6451a8e08cdefa231cf75e9ae1d9d57d57b16219)
![Feature 002828 | Fire Design of Slabs and Walls According to Simplified Table Method](/en/webimage/050837/3925042/50837.png?mw=512&hash=b06639a36ab8b62ab6d08e08552a5ec274469a37)
The Concrete Design add-on for RFEM allows you to perform the fire design of reinforced concrete walls and slabs according to the simplified table method (EN 1992‑1‑2, Section 5.4.2 and Table 5.8 and 5.9).
![Feature 002826 | Punching Shear Reinforcement](/en/webimage/050658/3902557/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
In the Concrete Design add-on, you have the option to define an existing vertically oriented punching shear reinforcement. This is then taken into account in the punching shear design.
![Feature 002801 | Punching Shear Design for All Section Shapes](/en/webimage/048276/3861250/2024-05-01_15-05-25.png?mw=512&hash=7732dd7fd2a19d53a9f6f77a35896a7c3676cff2)
Do you have individual column sections and angled wall geometries, and need punching shear design for them?
No problem. In RFEM 6, you can perform punching shear design not only for rectangular and circular sections, but for any cross-section shape.
![Feature 002691 | Simplified Fire Resistance Design for Columns and Beams According to EN 1992-1-2, Sections 5.3.2 and 5.6](/en/webimage/044608/3639258/44608_EN.png?mw=512&hash=11fe02254090f730dd1ed077d6012d8b839e5b1f)
The Concrete Design add-on provides you with the option to perform the simplified fire resistance design according to EN 1992‑1‑2 for columns (Section 5.3.2) and beams (Section 5.6).
The following design checks are available for the simplified fire resistance design:
- Columns: Minimum cross-sectional dimensions for rectangular and circular sections according to Table 5.2a as well as Equation 5.7 for calculating time of fire exposure
- Beams: Minimum dimensions and center distances according to Table 5.5 and Table 5.6
You can determine the internal forces for the fire resistance design according to two methods.
- 1 Here, the internal forces of the accidental design situation are included directly into the design.
- 2 The internal forces of the design at normal temperature are reduced by the factor Eta,fi (ηfi), then used in the fire resistance design.
Furthermore, it is possible to modify the axis distance according to Eq. 5.5.