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  • Users: jhobbs
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  1. jhobbs

    Freezer floor construction and temperature drawdown

    Hi Everyone, I have designed a freezer floor. My question is around the drawdown i.e. the dropping of the temperature of the concrete in the freezer room. We are specifiying a typical drawdown procedure. After 21 days of casting 1. Reduce temperature from ambient (approximately 22...
  2. jhobbs

    rafter bracing

    Hi I am looking at rafter bracing for a portal frame structure approximately 80m long. I have always braced the 2 end bays in for rafter bracing and the the ends of the building in the rafter and then towards the centre of the building for vertical bracing.
  3. jhobbs

    CRACKING in cylindrical tanks resisting ring tension

    Cracking in cylindrical liquid retaining structures. Hi can anyone assist me with this, when a circular reservoir is designed to resist ring tension you will get cracking from the ring tension and thermal effects. As both these cracks are vertical, you would expect the crack from thermal...

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