how to build a popsicle stick Pratt bridge by: Kassidy Kenning

Materials

  • about 200 popsicle sticks
  • one bottle of Emler's glue
  • handful of paper clips and rubber bands
  • 3-4 empty water bottles

Sides

  • step 1: research and deside what type of a Truss Bridge you and your partner would like to build. My partner and I chose to build a Pratt Bridge.
  • step 2: measure the length with a yard stick 35-40 inches horizontal
  • step 3: line popsicle sticks end to end till you reach 35-40 inches
step 3
  • step 4: take another popsicle stick and place over the place we're two popsicle sticks touch, glue down
  • step 5: repeat step 4, 4 times so we end up with four single sticks 35-40 inches long all same length
  • step 6: once you glue the sticks together you may consider using paper clips to keep the sticks from falling apart while allowing time for them to dry
  • step 7: once dry put two sticks evenly apart from each other parrell
  • step 8: take 2 popsicle sticks make triangles connecting the two longer sides that you have already glued. place the 2 popsicle sticks you are guling and make sure they evenly angled as shown in example below
step 8
  • step 9: continue making triangles along both sides of the bridge (you may consider using paper clips to hold triangles tight to beams so they don't slide around while moving)
  • step 10: after both sides are dry , (remove any paper clips you may have used before) set up the two sides parrell to eachother

Top and Bottom

  • step 11: take two empty water bottles and place them in between the two sides, the water bottles should be in the middle and your finished sides on the outside.
  • step 12: use rubber bands and place around both sides of your bridge with water bottles in between, should stand up on its own now
step 12
  • step 13: take popsicle sticks and make triangles along the top as you did for your sides,allow time for drying
  • step 14: once dry flip bridge over and do the same for the bottom of the bridge
  • step 15: take 10 popsicle sticks and place them side to side horizontally
  • step 16: take another 10 popsicle sticks and place them on top ways facing vertically, or opposite of the other 10 sticks
  • step 17: repeat step 16 one more time
  • step 18: glue your dry 20 stick platforms to the ends of your bridge, allow time for drying and your finished!!
finish product

Credits:

Created with images by Patrick Feller - "Relocated Pratt Truss Bridge, Battleground at Deer Park Golf Course, Deer Park, Texas 0206101414BW"

Report Abuse

If you feel that this video content violates the Adobe Terms of Use, you may report this content by filling out this quick form.

To report a Copyright Violation, please follow Section 17 in the Terms of Use.