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  • Users: matle
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  1. matle

    Amplification of S Waves

    Hi there, Just trying to get a firmer grip on the rationale behind seismic classification of ground types. EN1998 (& equivalent American codes) group grounds based on the shear wave velocity...this is because softer grounds amplify S-waves ...is this just because there is more movement of the...
  2. matle

    Cracked hardwood in the marine environment

    berkshire - thank you for the response with the urethane glue, it was exactly the sort of guidance I was looking for. Unfortunately inspecting the piece on site I concluded the wood was in worse condition than originally indicated and had to reject it on quality grounds. It is a bit of a pain...
  3. matle

    Cracked hardwood in the marine environment

    It's in sections bolted and supported continuosly along its length.
  4. matle

    Cracked hardwood in the marine environment

    It's a timber rubbing strip along structural steelwork appx 100mm deep, 300mm tall and 2000m long. The timber is ekki so good quality. The crack is at one if the corners & if it got worse you could expect a section 150mm square and appx half the depth (150mm) falling away.
  5. matle

    Cracked hardwood in the marine environment

    We have some non structural marine hardwood going in on a project and a piece of it is cracked. Aesthetically we may be able to live with it as it stands but the concern is it developing over time. Does anyone: a) have experience of cracked hardwood in a marine environment - will these cracks...
  6. matle

    Typical shank tension in a tightened bolt

    I recognise you wouldn't want to rely on anything without specifying a minimum torque - I was just trying to get a feel for what a reasonable preload to expect from 'man power' (rather than using any specialist tools) would be... We're having the Contractor run through it with a mock assembly to...
  7. matle

    Typical shank tension in a tightened bolt

    Hi, We have a connection with slotted holes - this means that the loading will initially be taken in friction between the plates until the the plates slip and the bolt is loaded in bearing. The bolts are not HSFG (as I understand it the main difference is that HSFG bolts are produced to a...

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