General RC sections
Resistance domains and serviceability checks of reinforced-concrete sections of any shapeChecks reinforced-concrete sections to Italian NTC 2018 and the 2019 Circular: rectangular, circular, T-shaped or hollow sections of any shape, also imported from a DXF drawing. The app builds the N-M resistance domains at the ULS and at the SLV in the substantially elastic range, the 3D N-Mx-My domain under biaxial bending and the moment–curvature diagram up to failure, and checks the section in service: stresses in the characteristic combination and crack width in the frequent and quasi-permanent combinations, biaxial bending included. Thousands of load combinations can be pasted from Excel and checked at once.
Features
- Rectangular, circular, T and polygonal shapes with holes: hollow sections and L-shaped beams too
- Section import from a DXF drawing: outline, holes and bars from the layers, with a preview and diameters read from the circles
- Reinforcement by coordinates or with generators: rows of bars, arcs and perimeters at constant cover
- Materials to NTC 2018, concrete up to C50/60
- Uniaxial N-M resistance domain at the ULS
- SLV domain in the substantially elastic range (NTC §7.4.1), based on the first-yield moment M'yd, biaxial bending included
- Biaxial bending: 3D N-Mx-My domain and Mx-My domains at constant axial force
- SLS characteristic combination: stresses with the modular ratio n (σc ≤ 0.60 fck, σs ≤ 0.80 fyk), inclined neutral axis, coloured section and stress domain
- SLS frequent and quasi-permanent combinations: crack width wk (Circular C4.1.2.2.4.5) on sections of any shape, with the effective area shown and the limit from the environmental conditions
- Moment–curvature diagram up to failure, with the NTC §4.1.2.3.4.2 curvature ductility μφ
- Checks of thousands of combinations pasted from Excel, with the safety factor of each
- Minimum concrete cover per Table C4.1.IV of the 2019 Circular
- Export of the domain points and of the moment–curvature curve
- Connects to an AI assistant such as Claude or ChatGPT through the Toolbox MCP server: you describe section and actions, the app runs the check on your PC
The shear check is not included.