Introducing the Beam Strength Calculator—an online tool designed to accurately compute the load-induced stresses and geometric parameters of wooden and steel beams.
This calculator enables you to:
Specify the beam length L and select the load type: uniformly distributed load q or concentrated force P.
Choose the beam material: steel (S235, S275, S295, S420) or wood available in three quality grades.
Enter the geometric dimensions of the cross-section, allowing the calculation of various beam types including pipe, channel, structural tube, I-beam, angle, plate, and more.
Select the support configuration: hinge-hinge, fixed-hinge, fixed-fixed, or free end.
The calculation process considers the following factors:
Bending stresses resulting from the applied moment.
Shear stresses due to the transverse force, computed using the Jourawski formula.
Verification through the third strength theory using principal stresses.
For wooden beams, additional correction factors are applied to enhance the design bending resistance:
Mdl = 0.66 — representing the combined effect of permanent and short-term snow loads.
Mv = 0.9 — applicable under normal service conditions (moisture content below 12%).
Mt = 0.8 — for operation at elevated temperatures of 50°C.
Mss = 0.9 — assuming a structural service life of 75 years.
This Beam Strength Calculator is an indispensable resource for engineers and builders, enabling rapid evaluation of beam strength and optimized design of steel and wooden structures.
