Nailing and Anchorage

Nailing Vs Anchorage: Nailing and anchorage are both soil stabilization methods with a few differences. The difference between these two terms is that in anchorage method we apply a pre-stress to create a tension. This way the anchorage system become more resistant against large deformations. On the other hand, soil nailing  is  a  common practice  […]

What is composite beam?

If the concrete floor is not attached to the underlying steel beams, floor and beams functions independently as a non-composite system. This way of design had been common for many years. However in the past decades, researchers found out if they design a sort of connectors between beams and concrete floors, the mechanical performance improves […]

Beam to column rigid connection

The main objective of a fixed connection is to eliminate any relative rotation between column and beam. In other word when a beam a connected to a column by one of the methods shown in the figure, the bending moment transfers to the column without any reduction. In simpler words, you can assume that beam […]

Residual stress and its consequences

What does residual mean? Residual stresses, also known as locked-in stresses, are referred to an specific amount of stress that exists in the absence of external loading or thermal gradients. So even if the members is not subjected t loading, it has s degree of internal stress. What causes residual stresses? many factors can cause […]

Strength reduction because of holes

Effect of holes in beams Obviously, any reduction in the cress section of steel members reduces the overall strength of the member. However, structural engineers need some mathematical terms to quantify this reduction. In this article I talk about the effect of holes in steel beams in terms of tensile, compressive and bending capacity. the […]