13 A Bridge Strength Test: 25 Loaded Kamaz Trucks

A Bridge Strength Test: 25 Loaded Kamaz Trucks

Posted on October 3, 2014 by tim

So this is how they test newly built bridges in Russia nowadays. A pack of KAMAZ tip trucks loaded with sand stand side by side, very close to each other. Each truck weighs 25 tons, so this pack grosses at more than six hundred tons tightly packed into one spot. Then this bunch of weight on wheels is moved to another part of the bridge, measurements are taken, then the process is repeated again and again. So the photographer nicknamed Wizarden was watching for the whole morning to see how six hundred tons of sand were moved, waiting to see if the bridge would collapse. The spoiler – it didn’t collapse. Want more of a spoiler? Here: do you know where the top managers of the contractor who built the bridge spent their time during this KAMAZ test? You won’t believe it, but they were loaded into a small boat and went under the bridge (probably praying). See more here:

So this is the bridge. Newly built. So its time for it to be tested for its strength.

And here are the businessmen on the boat, the ones who are responsible for the construction. Now it’s their turn to demonstrate their faith in their project, staying on the boat under the bridge while 24 loaded trucks are packed into a dense spot. Dressed in black. Just in case. This is a view from top of the bridge of them floating underneath.

Some smaller elements of the bridge are still being put in place. However it doesn’t stop the tests.

Before the tests a bunch of sensors and meters were thrown here and there. 

And here the trucks arrive. Loaded. With sand. Twelve first. Then twelve more. Twenty four trucks in total, six hundred tons of live weight.


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13 Responses to “A Bridge Strength Test: 25 Loaded Kamaz Trucks”

  1. Darius says:

    They do the test the same way in Lithuania

  2. Bowner says:

    And again. Where is it? What city?

  3. mittens says:

    The bridge looks very nice, and this tradition of “motivating” constructors to build quality bridges is something we should all adopt.

  4. petrohof says:

    ‘six hundred tons of live weight.’ actually it is dead weight.

  5. andy says:

    In the second-to-last photo, on page 4, there is an impressive looking structural element, u-shaped and massive, on the left of the left tower. What is it?

  6. petrohof says:

    this must now just be tradition. any competent structural engineering firm would know this simply by the math. this is called destructive testing and if it fails it would be destroyed in a bad way. maybe some elements are tested to failure just to be sure of the calculations, but not a whole bridge.

  7. Douglas says:

    I want to know one thing. Did they serve lunch?

  8. Bob says:

    Just like the Romans used to do – with the builders and their families standing under the aqueducts.

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