Why is it important to specify minimum washer thicknesses for anchor rods?

Specifying minimum washer thicknesses for anchor rods is crucial in maintaining load distribution and integrity within the structural system. Washers play a significant role in creating a larger bearing surface when the anchor rods are tightened, which helps to distribute the load evenly over a wider area of the base material. This helps to prevent localized crushing or deformity of the material beneath the washer, which could lead to structural failure.

Moreover, adequate washer thickness contributes to the overall stability of the anchorage. If the washers are too thin, they may deform under load, compromising the connection between the anchor rod and the structure. This could lead to issues like loosening of the connection over time, or even catastrophic failure of the structural element that the anchors are securing. Therefore, specifying minimum washer thicknesses is essential to ensure that the structural integrity is maintained under various load conditions, ensuring safety and performance in construction.