Calculations
Interactive calculators for reinforced-concrete and steel design.
Design checks that come up every day in structural practice, implemented as in-browser calculators: bending resistance of reinforced-concrete beams per EN 1992-1-1, stiffness modification for cracked-section analysis, and bracing-imperfection design forces per EN 1993-1-1. Results should always be verified against the applicable standards.
Beam — Bending Resistance
Design bending resistance Mᵣd of a singly reinforced rectangular RC cross-section using the rectangular stress block.
Stiffness Modification
Stiffness reduction factor for cracked-section analysis of reinforced-concrete beams and T-beams.
Bracing Imperfection
Equivalent horizontal force from initial sway / bow imperfections for bracing and stabilising members per EN 1993-1-1.