Diagrid Structures

Diagrid  structures are constructed by attaching diagonal members. It can be constructed from steel, wood, concrete or other materials. Nowadays, diagrid frames are commonly used in the construction of skyscrapers and tall buildings. Steel diagrid One of the most popular materials to build the diagrid system is steel. Circular and rectangular steel sections are more […]

Web crippling in steel members

Web crippling behavior: Web crippling failure is likely to happen when large concentrated forces are applied to thin-walled flexural members. American Iron & Steel Institute has defined four different crippling condition based on the location of failure (interior or exterior) and the number of loads involved (one or two). Figure below illustrates these conditions including […]

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 […]