Cracks in a building?? really?, page-6

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    My nose has a working BS meter.


    This building is very attractive; wonderful vistas through glass external walls supported by a web of steel and window frames.

    The support for the building is then the internal spine.

    One report said an internal wall had crumbled.


    At 33 levels, the building would be around 100m high.

    The coefficient of linear expansion of steel is 7.2 times 10 to power of -6. (0.0000072 for each deg C)

    It's a small number, but over 100m and on an ordinary day a temperature variation of 10 to 15 deg would not be noticed.


    Do the math: any old day the building could move 10 times the announced 1-2mm.


    But it's OK, it's only the tenth floor.

    If level 10 collapses, 11 to 30 will be quite OK.

 
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