What effect does a longer anchor length for ground bolts have on the forces in the column?
The distribution of axial tensile stress in the anchor bolt is not uniform, inverted triangular distribution, the upper axial tensile stress is the largest, the lower axial tensile stress is 0. With the increase of the anchoring depth, the stress decreases gradually, and finally reaches 25-30 times the diameter of the time when it is reduced to 0. Therefore, the anchoring length Further increase is of no use.As long as the anchorage length meets the above requirements, and the end is equipped with a hook or anchor plate, the foundation concrete is generally not pulled bad.
