Steel Solutions Center

3.4. Erection Tolerances

3.4.1. How do individual member deviations impact the alignment and erected position of the overall structural steel frame?

In many cases, individual member deviations that exceed established tolerances will have no adverse effect on the overall structural steel frame. However, in other instances individual member deviations that accumulate can cause the overall structural steel frame to substantially exceed the overall permissible tolerances for plumbness, level and line. It is essential that the effect of individual member tolerances on the overall structural steel frame be recognized and accounted for with practical detailing and fabrication techniques that permit compliance with overall tolerances.