In this section, you will address the following items:
The purpose of this section is to calculate the maximum axial and shear force on an individual in the specified bolt pattern. Note that the number of bolts and the arrangement of bolts is dependent on the selected Wall mount Bracket.
When calculating the loads for an individual bolt in a bolt pattern it is important to understand the distribution of applied loads amongst every bolt. Therefore identifying the shear and axial loads on the bolt pattern is the first step in calculating the bolt loads.
After identifying the applied shear and axial loads they are translated to the centroid of the pattern. The forces and moments at the centroid are then converted into axial and shear forces acting at the individual bolt.
Every individual wall mount has a unique bolt pattern and loading geometry. Therefore two different loading conditions are considered in the calculation of bolt loads for every individual wall mount.
Loads that are applied to the plane of the pattern are in-plane eccentric shear loads. This load is considered eccentric since it does not act on the centroid of the bolt pattern. The following wall mount brackets have in-plane eccentric loads.
Loads that are applied out of the plane of the bolt pattern are out-of-plane shear loads. This load passes through the centroid of the bolt pattern in the x-y plane however, its line of action is offset from the centroid in the z-direction.
As discussed above every wall mount bracket has a unique geometry therefore for a specific bracket type there could be out-of-plane or in-plane loading. Tabel below demonstrated the loading conditions of each wall mount bracket. Note that the location where the mounted pole is installed determines the location of the reaction on the brackets. Therefore if the pole is eccentric from the center of the bracket then the loading will be eccentrically applied to the bolts. This is further explained in the Reaction Calculations article.
In this section, the axial loads on the bolts have been calculated for loads case 1: Loads perpendicular to wall + Weight of Equipment.
Note that the Shear loads for MAFI Remedial Wall Mount Bracket - MAFI 2415 and Large Offset Wall Mount - MAFI -3544 are calculated using the same method.
Note that the axial load for MAFI Remedial Wall Mount Bracket - MAFI 2415 and Large Offset Wall Mount - MAFI -3544 are calculated using the same method however they do not have Z-Force on Bolts Due to My. about Centroid. Pz,My,PR since the Mounted pole is inline with the centroid of the bolt pattern.
2.6. Axial Loads on Bolts for Corner Wall Mount - Minimal Offset - MAFI 43692
Note that the Shear loads for MAFI Remedial Wall Mount Bracket - MAFI 2415 and Large Offset Wall Mount - MAFI -3544 are calculated using the same method.
Note that the axial load for MAFI Remedial Wall Mount Bracket - MAFI 2415 and Large Offset Wall Mount - MAFI -3544 are calculated using the same method.
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