Xponexus Engineering

Glulam Beam Design

EN 1995-1-1 (EC5) glued laminated timber beam calculator. Bending, shear, deflection, lateral torsional buckling, bearing and vibration serviceability.

EN 1995-1-1GL24h / GL28h / GL32h LTB CheckDeflection SLS

Scope note:
Preliminary EC5 design assistant. Verify with National Annex, moisture class, load duration and fire resistance requirements.

Section & Material

Glulam grade, cross-section and service class.

Section

Glulam grade Grade f_m,k (MPa) f_v,k (MPa) f_c,90,k (MPa) E_0,mean (MPa) E_0,05 (MPa) G_mean (MPa)

Cross section Width b (mm) Depth h (mm) No. of beams Span L (m) Beam spacing s (m) Support condition

Modification & service Service class Load duration class k_mod (override, 0=auto) γM (timber) k_def ψ2 (quasi-perm factor)

Design Loads (ULS & SLS)

Applied loads on beam (per beam or tributary width).

Loads

ULS loads Permanent g_k (kN/m) Variable q_k (kN/m) γG γQ Point load G_k,pt (kN) Point load Q_k,pt (kN) Point load position x/L

SLS / deflection SLS permanent w_g (kN/m) SLS variable w_q (kN/m) Deflection limit L/ Net final limit L/ Pre-camber (mm) Vibration floor? Unit mass ρ (kg/m³)

Bearing & lateral restraint Bearing length l_b (mm) Bearing width (= b) override (mm) Lateral restraint L_eff,LTB (m, 0=auto) Design notes

Check Summary

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ULS + SLS

Bending (ULS)

—

Shear (ULS)

—

LTB

—

Bearing

—

Deflection (SLS)

—

Vibration

—

Governing: — Util ≥ 1.0 = FAIL

Detailed Report

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