If calculated crack widths exceed the permissible limit for the given exposure class, BEAMD notifies the engineer and can automatically increase the reinforcement area or adjust bar spacing to bring crack widths into compliance. The crack width results can be displayed as tables along the beam, together with detailed output for the serviceability limit state, allowing engineers to pinpoint problematic regions.
: For deep beams exceeding a total height of 750 mm, add side-face ("skin") reinforcement bars within BeamD's reinforcement wizard to restrict crack propagation above the tension zone. Shear and Torsion Detailing STRAP 2018 - RC Beams (Design & Detail)
[Gross Section (Ig)] ──► [Tensile Stress Exceeds Rupture] ──► [STRAP Calculates Cracked Ie] ──► [Accurate SLS Deflection] atir strap and beamd with crack
: In the ATIR STRAP environment, users can reduce the moment of inertia and section area by a specific factor.
). Identify if the crack is flexural (at the bottom/top center) or shear-induced (inclined cracks near the supports). If calculated crack widths exceed the permissible limit
While STRAP handles global 3D finite element framework analysis, the serves as the specialized engine for 2D beam design, reinforcement detailing, and localized code checks.
: Review the support moment options within BEAMD to determine whether peak or reduced center-line moments are used to size your steel reinforcement. Shear and Torsion Detailing STRAP 2018 - RC
For the most demanding applications—such as beams with large openings or unusual reinforcement configurations—engineers may complement the STRAP + BEAMD workflow with specialized detailing software such as IDEA StatiCa to perform detailed crack width checks and stress concentration analyses.
