Movement joints are widely used in structures because they provide stability and constructability and reduce construction costs.
If structures tend to move in any direction due to settlement, wind action or other reasons, it is advisable to allow the structure to behave as intended.
Avoiding this movement results in high construction costs and cracks or damage to the structure can occur for a variety of reasons.
In the event of an earthquake, for example, the building bends sideways and if a sufficient distance is not maintained between two adjacent buildings, damage to structural elements may occur.
Such an event could lead to structural failure.
Movement joints are provided in structures taking into consideration the behavior of the structure and the amount of movement it can undergo.
For example, when considering the gaps between two buildings, they must be greater than the maximum design deflection. Maximum deflection may vary depending on the type of project.
When designing for wind, the deflection is calculated according to the specific standard, and if the structure is designed for seismic events, the values allowed by the standard must be used.
Additionally, expansion joints are intended for movements caused by expansion and contraction with temperature changes. Further information Expansion joints in concrete can be examined.
