POE Truss Bridge

In order to test our truss analysis we will make simple truss bridges in teams of 2.

Achievement

  1. Design a simple truss, 300mm long and 100mm high.
  2. Analyze the truss. Calculate the predicted tension or compression in each member under a 100 pound load.
  3. Each partner will make one side of a bridge based on this truss (estimated time 1 class period).
  4. Gusset the joints with small pieces of paper.
  5. Joint the two sides together with a "wind truss" to make a bridge (estimated time, 1 class period).
  6. Predict the weight at which the bridge will fail based on a balsawood stick fracturing at 62 pounds of tension or compression.
  7. Load the bridge to failure in the SSA.
  8. Record the force at which the bridge fails

Criteria

Constraints


Links

Bridge Basics

Bridge Designer

Bridge Design Tutorial

Last updated on 19 December 2013 by P. A. Wiedorn