EC2 Prestressed Concrete Design
Section-level design of pre- and post-tensioned concrete members to Eurocode 2 — with every prestress-loss calculation traceable back to the clause and factor used.
In Development
Planned Scope
Rectangular / T / I sections, single or multiple tendon groups. Bonded and unbonded post-tensioning. Every step will show the Eurocode clause and the value of each factor used, matching the style of the EC3 Steel and EC2 R/C tools.
Section geometry & properties
Gross and transformed section properties (A, I, zt, zb), self-weight, moment of resistance at extreme fibres.
Initial prestress limits
σp,max at jacking and immediately after transfer against the Eurocode limits (min of 0.80·fpk, 0.90·fp0.1k) and (min of 0.75·fpk, 0.85·fp0.1k).
Immediate losses
Elastic shortening (Eq 5.44), friction (Eq 5.45), anchorage draw-in and wedge slip.
Time-dependent losses
Creep, shrinkage and steel relaxation combined via Eq (5.46) with φ(∞,t0), εcs and Δσpr.
Stress checks at transfer & service
Top and bottom fibre stresses under characteristic, frequent and quasi-permanent combinations against fct,eff and 0.6·fck limits.
ULS bending
Strain-compatibility solution using the parabolic-rectangular stress block for concrete and idealised bilinear stress-strain for prestressing steel.
Deflection with prestress
Camber from prestress and self-weight, long-term multipliers using creep coefficient φ.
Need this on a real project sooner?
Get in touch — I can prioritise the modules you actually need, or take on the design as a service.