Subject : Structural Analysis 1

Topic : Shear Centre

Difficulty : High

In the strength of material, we have studied the shear stress distribution for different shaped beams in which shear stresses in beams are induced due to change in bending moment from one point along the length of the beam.

The shear centre for any transverse section of the beam is in the point of intersection of the bending axis and the plane of the transverse section.

In case of beam having two axes of symmetry, the shear centre coincides with the centroid. Shear centre is also known as the centre of twist.

When the load passes through the shear centre, there will be only bending in the cross section and not twisting.

In case of beam having one axis of symmetry, the shear centre does not coincide with the centroid but lies on the axis of symmemtry