Timber Cross-Section Verification
Verification of timber cross-sections is carried out for load of bending moment, normal force and shear force. Verification is carried out for chosen load or for the critical load. The critical load is the load with maximum value of utilization.
Cross section can be checked by these ways:
Each cross-section is checked for two types of load:
1. Check for bending moment and normal force
The analysis checks the bending moment stress σm developed at the edge of cross-section given by:
elastic modulus of cross-section
and the normal force stress σn given by:
area of cross-section
The normal force can be either tension or compression.
2. Check for shear
The analysis checks the shear stress τ at the cross-section center of gravity written as:
1st moment of area
moment of inertia
width (thickness) of cross-section at its center of gravity