What is a deformation joint

In industrial and civil buildings, due to the influence of temperature changes, uneven foundation settlement, earthquakes and other factors, additional stress and deformation will occur inside the building structure. Improper handling will cause damage to the building, cracks or even collapse. Affect use and safety. The solution is to strengthen the integrity of the building, so that it has sufficient strength and rigidity to overcome these breaking stresses without causing damage; break the structure in these deformation-sensitive parts in advance, leaving a certain gap to ensure Each part of the building has sufficient deformation width in these gaps without causing damage to the building. This kind of reserved gap that divides the building vertically is called a deformation gap.

1. Set up double walls or double columns on both sides of the deformation joint-the method is relatively simple, but it is easy to cause the structural foundation on both sides of the joint to be eccentric (when used for expansion joints, the foundation can not be broken, so this problem is not necessary)
2. On both sides of the deformation joint, use the horizontal member cantilever to pick out the direction of the deformation joint-the foundation part is easy to break away, and it is convenient to set the joint, especially suitable for the settlement joint
3. Use a section of simply supported horizontal members for transition treatment-mostly used for overhead walkways connecting two buildings, etc., but should be used with caution in seismic fortified areas