Measuring forces at multiple locations in rigging systems

2016 | Brian Kane, PhD, University of Massachusetts Amherst and Co-Investigator Mark Reiland, University of Massachusetts Amherst

Despite the obvious danger associated with rigging trees, very little rigorous research has explored many aspects of this common arboricultural practice. Only a few studies have quantified the forces generated when shock loading a tree, but the studies have been limited by measuring forces in only one or two places in the rigging system. This makes is difficult to assess the likelihood of failure of different parts of the rigging (block, rope, sling, tree). This project will measure forces at three locations in the rigging under a variety of loading scenarios to determine friction coefficients in different blocks. In turn, these values will help us understand which parts of the rigging are more (most) likely to fail under different rigging scenarios.