大傻做事粗中有细。我问别人的时候,别人都说想都没想过。。。
Hi,
try to divide the area of footing (use square feet) with 500lb. if the result is less than 40 pound per square feet, it is safe.
my reply:
The piano is 5'x2', 500/10 = 50 > 40, so it unsafe?? I see many people just put the piano on the floor.
Sent from my iPhone
his reply:
If it is 50 psf. I think it is OK. Because we usually design additional 15 psf for super dead load. So the total limit become 55 psf.
回复 大傻_
你那个PHD朋友莫明其妙。他听说过谁家地板被钢琴压垮?并且房子受力问题,有死
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buhuyou 发表于 2011-7-7 21:17  |