Quote:
Originally Posted by AstroApprentice
Hi Chris,
This old thread on CN suggests 12” D or bigger best for tall pier in terms of deflection reduction https://www.cloudynights.com/article...amentals-r1236
They do not consider thermal issues. Like all these pier parameters, I guess it’s a compromise. I wonder how different cool down times would be to a smaller D pipe in terms of hours?
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My thoughts:
1) Diameter is king. My pier diameter is about 33cm across and 16mm walls.
2) Gussets are good but not essential when using large pier diameters.
3) Bolts close to tube walls centred between gussets if used
4) Thermal issues are not really relevant unless pier sits in direct sun all day. Even then, the pier sinks heat into big thermal mass (concrete) sitting in ground.
5) A cubic metre of concrete to bolt into is handy
Ted
Ted