Structural Engineering & Statics
where the load goes
Series

Connection design — the series

One essay so far on this idea, and more questions about it than one essay answers.
  1. A bolt group under an eccentric load. A 3 by 2 bolt group carrying 100 kN at 150 mm from its centroid, with the resultant force on each bolt drawn to scale, by the elastic vector method. The load is shared equally and the torque is not, so the worst bolt carries 50.37 kN against 16.67 kN of direct shear alone — 3.02 times as much.

    The connection is not a point, and every diagram so far says it is

    Every free body drawn here has joined its members at points. Real structures fail at the joints far more often than in the members, and the reason is that a joint is exactly the region the theory behind every other page explicitly excludes.

    part 1 · connections

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