Class 1 (Retaining liquid with minimal leakage allowed, crack width limited to wmaxw sub m a x end-sub Maximum Allowable Crack Width ( wmaxw sub m a x end-sub ): under quasi-permanent load combinations. Wall Thickness ( ): Service Axial Tension Force ( NEdcap N sub cap E d end-sub ): (Hoop tension due to hydrostatic pressure). 2. Minimum Reinforcement for Crack Control EN 1992-3 requires minimum reinforcement ( As,mincap A sub s comma m i n end-sub
Owning "Worked Examples to Eurocode 2 Volume 2" is not enough. You must use it as a reference manual , not a novel.
Eurocode 2 Part 2 specifically targets concrete bridges. Worked examples usually model a multi-span box girder or post-tensioned beam bridge.
The critical buckling load is:
, nominal bonded reinforcing steel must be added to control potential cracking according to EN 1992-2 clause 7.3.
sr,max=k3⋅c+k1⋅k2⋅k4⋅ϕρp,effs sub r comma m a x end-sub equals k sub 3 center dot c plus the fraction with numerator k sub 1 center dot k sub 2 center dot k sub 4 center dot phi and denominator rho sub p comma e f f end-sub end-fraction Where Eurocode standard default coefficients are: (High-bond bars) Calculate Effective Tension Zone Area ( Ac,effcap A sub c comma e f f end-sub
): Mean value of axial tensile strength, critical for cracking analysis. Determines short-term deformations and stiffness. worked examples to eurocode 2 volume 2
Design of prestressed and reinforced concrete bridge decks.
"Right," Leila said, flipping the book open to a dog-eared page. "Clause 7.3.1. Deflection control without direct calculation. We can't use the span-to-depth ratios in Table 7.4N. The arch introduces axial tension, and the deck curvature means our effective span is ambiguous."
Design Resistance (Rd)=RkγmDesign Resistance open paren cap R sub d close paren equals the fraction with numerator cap R sub k and denominator gamma sub m end-fraction Gkcap G sub k : Permanent actions Qkcap Q sub k : Variable actions : Partial factors for actions ( typical for ULS) γmgamma sub m : Material partial safety factors ( for concrete, for steel) Class 1 (Retaining liquid with minimal leakage allowed,
For liquid-retaining structures, deep foundations, and elements in marine environments, crack control is often the governing design criterion rather than structural failure. Calculation of Design Crack Width (
When structural elements are subjected to spatial loading (e.g., curved bridge decks, edge beams), torsion interacts with shear and bending. Volume 2 utilizes the space truss model to resolve these stresses.
When The Concrete Centre eventually updated and republished the work as a standalone "Worked examples to Eurocode 2," they explicitly removed the erroneous reference to a second volume. The intended content of this phantom second volume remains a matter of speculation, but it might have been planned to cover more advanced topics or special structures like bridges and retaining walls, which are often treated in separate Eurocode 2 sections. Interestingly, Volume 1 itself states its aim is to distil "the material that is commonly used in the design of concrete framed buildings", which implicitly leaves out other structural categories such as bridges, which are covered by BS EN 1992-2. Minimum Reinforcement for Crack Control EN 1992-3 requires
cap K sub a equals the fraction with numerator 1 minus sine open paren 30 raised to the composed with power close paren and denominator 1 plus sine open paren 30 raised to the composed with power close paren end-fraction equals 0.333 The characteristic pressure at the base is: