Xponexus Engineering

Masonry Lintel Design

Steel, concrete and prestressed concrete lintel design over masonry openings. Arching action assessment, bearing stress, bending, shear and deflection checks. Covers EN 1996-1-1 arching and EN 1993-1-1 / EN 1992-1-1 lintel capacity.

EN 1996-1-1Arching action Steel / ConcreteBearing stress

Scope note:
Arching action per EC6 §6.3. Steel lintels per EC3, concrete per EC2. Verify durability and corrosion protection for exposed lintels.

Lintel & Opening Sketch

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Sketch

Opening Geometry & Loading

Clear span, wall details and applied loads.

Geometry

Opening dimensions Clear span l₀ (mm) Bearing length each end a (mm) Wall thickness t_w (mm) Height of masonry above l₀ – h_a (mm) Masonry unit weight γ_m (kN/m³) Arch angle θ (0=auto by EC6)

Applied loads Dead load above g_k (kN/m²) Live load above q_k (kN/m²) Dead self-weight lintel g_sw (kN/m) Point load above P_k (kN) γG γQ Masonry f_k (MPa) γM (masonry)

Lintel type Lintel type Steel grade / Concrete class f_y / f_ck (MPa) Lintel depth d (mm) Lintel flange/web t_f (mm) Leg width b (mm) Section modulus W_el (cm³, 0=auto from d,b,tf) Deflection limit L/ Design notes

Check Summary

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ULS + SLS

Arching action

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Design load

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Bending (lintel)

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Shear (lintel)

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Bearing stress

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Deflection (SLS)

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Governing: —

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