To ensure the safety and effectiveness of the building structure, many structural joints such as expansion joints, seismic joints, and settlement joints will be set up in the structural design.
Expansion joint refers to a structural joint set at an appropriate location along the direction of the construction joint of a building or structure to prevent cracks or damage to the structure due to climate and temperature changes (thermal expansion, contraction).
Expansion joints are used to divide building components such as walls, floors, and roofs (excluding wooden roofs) above the foundation into two independent parts, allowing the building or structure to expand horizontally along its length.
.