K Truss Bridge

Balsa Wood K Truss Bridge

Here is a bridge using the K truss design made from Balsa wood. This bridges uses a combination of end and lap joints. You can see that where the slanted members of each K join together at the vertical member, there is an end joint. At the top and bottom chords, the joint is a lap joint. This bridge does not have any lateral bracing on the top, which is something I would highlight to change. The performance of this bridge would be greatly increased with that lateral bracing.

What do you think about this bridge? Is there anything you would have done differently?

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5 Responses to “Balsa Wood K Truss Bridge”

  1. science olympiad student - October 19, 2009 at 10:40 am

    how much wieght did it hold and what were the specifications for building it?

  2. Andika - December 7, 2009 at 10:18 pm

    hi there..I I have seen all this bridge pictures…and if you dont mind would you …give me how we can define the hight of the bridges..how if we use the angle 60 degrees from the bottom if that correct or no..? thanks for your attention

  3. amy - May 24, 2010 at 6:07 pm

    well i liked your bridges and i was hopign if i could know the measurements of the bridge and how long it took you and if it could hold alot of weight?

  4. bridge - September 16, 2011 at 11:38 am

    Wow! Do you ever built full scale bridges? I rekon you could follow Brunel…

  5. Chris - April 5, 2012 at 5:55 am

    It’s such a complicated design but the Quebec Bridge over the St. Lawrence river in Canada is a amazing example of this type of bridge.

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