Technical Blogs

  • Slinging methods: Do we know 'm all?

    25/11/2014

    Slinging of trusses is of course not the most common cause of accidents that involve truss structures. Beyond any doubt that would be overloading of the truss span itself or overloading of a chain motor. Negligence in planning or maintenance does play a role.

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  • Shackles inspection

    06/11/2014

    Notified Body inspectors barely do a serious job in checking your shackles, because they don’t need to. But they still send you an invoice, so you might be better off to do the job yourself. Don’t waste your money on some inspection company to check your shackles if you can easy learn to do it yourself.

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  • Believer, Faithful or Fanatic? The real story

    06/11/2014

    We all make mistakes, even when it’s our job to prevent those are made. In that process we sometimes hurt people, which have tried to do a job to their best knowledge.

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  • Believer, Faithful or Fanatic?

    06/11/2014

    We all have our favourites. Whether it's a performing artist, sportsman, team, or even politician. Some people are not just fans, they can be fanatic.

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  • Yes we can (do better slinging)! (Part 3)

    05/11/2014

    For the fans, one more blog on (scary) slinging found on the World Wide Web. Although at first impression one might say the guys rigging that sound system took extra care in covering the rear of the cabinets with plastic, thus reducing electrical risk. Question could be: why leave the chain motor un-covered? And where are the horizontal restraints for the line array system to prevent it from swaying in bad weather.

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  • Yes we can (do better slinging)! (Part 2)

    05/11/2014

    Each type of truss will have its own best slinging method, all depending on the bracing positions. Slinging primarily has to do with the transfer of forces from the truss into the sling or visa versa. No brace present at the slinging position (slinging outside of the node points) is bad slinging to start with.

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  • Yes we can (do better slinging)! (Part 1)

    05/11/2014

    Each type of truss in cross section or in bracing pattern has its own number of preferred and discouraged or even not allowed methods. Too often people think this is the best method and we should apply that to all truss types.

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  • Just one single round tube

    05/11/2014

    “What is the capacity of just a single round tube?” This question is generally ignored by truss manufacturers, as it has little to do with their business. And it’s too vague for a structural engineer to answer just like that. If he answers the question as it is asked, the invoice could become quite high when all the possibilities are tackled…

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  • Eurocodes (Part 2)

    05/11/2014

    Slowly but steadily the Eurocodes are implemented in our industry as well. Raising huge discussions amongst structural engineers, they finally seem to have found common ground, now placing responsibility with the truss manufacturers to comply with these regulations. All truss modules now simply need to comply with one or more of the Eurocodes, this being Eurocodes 1, 3 and 9. How will this help our industry?

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  • Eurocodes (part 1)

    05/11/2014

    The issue: Traditionally in the EU the problem with comparing loading capacities was the method of calculation and on what particular standard this was to be based upon. Even the name of one particular alloy could be different from one nation to the next, and so were the standards describing the methods and formulas for structural engineering. What a mess it used to be in the Old Continent!

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