How to build a Warren Truss Bridge By: SydneY hummert

Materials

  • 300 popsicle sticks
  • 2 bottle of Elmers glue
  • 1 box of paperclips
  • 2 tissue boxes
  • Yardstick
  • Newspaper

Sides

  1. Lay news paper out on the table
  2. Meausre out 36 inches on a table with a yard stick
  3. Place approximately 7 sticks straight on the table end to end. Place a line of glue down the lengths of all the sticks.
  4. Lay 7 more sticks on top of the 7 sticks with glue. They should overlap with both of the endings of the sticks in the middle. Do this all the way across. Press down and let it dry for about 5 minutes.
  5. Place 6 popsicle sticks on the table, and repeat steps 3 and 4.
  6. Take 2 popsicle sticks and glue one side of a stick. Press them togther. Do this two times. You should have a total of 2 stacked together sticks.
  7. Take your 7 popsicle sticks that are in a line and place it 4 inches below your 6 popsicle sticks. Then take both of the double sticks your just made and glue it on the corners. This should look like a trapezoid.
  8. Next, take 3 sticks and glue them into a form of a triangle. Make about 12 of these.
  9. Place one triangle in the middle of the trapezoid and line all of your other triangles side by side every other every other.
  10. Repeat all of these steps one more time so you have two trapezoid shapes.
Sides of the bridge

Bottom

  1. Take both of your peices and place two tissue boxs in the middle of the peices and rubber band them. Make sure your tissue box is about 5 inches apart.
  2. Turn your bridge over and make X's with your sticks across the whole bottom. Make sure they overlap on each corner. Let dry
Bottom of the bridge

Top

  1. Flip your Bridge over so that the top is open. Glue X's across the top. Your basically repeating the same thing you did as the bottom.
  2. Make sure your X's sticks go all the way across the top. Let dry. Your Bridge should be looking like a trapezoid with popsicles sticks across the top and bottom in a X form.

That is how you make a Warren Truss Bridge

Credits:

Created with images by Patrick Feller - "Skalak Road Bridge over West Mill Creek, Austin County, Texas 0130101609BW" • ardee4 - "Gleason Road Bridge 3"

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