Industrial ground floors and soil bearing capacity
Industrial ground floors and soil bearing capacity
(OP)
Hello!
I have a question about industrial ground floors on grade subjected to concentrated loads. I have found complete information about how to handle moment and punching failure but I cannot find any information about how to determine if the concentrated loads will induce a ground pressure failure, i.e. overpass the soil bearing capacity or induce exaggerated settlements on very bad soil. This information is very well explained for isolated spread footings but I cannot find any easy to follow equations for larger floors such as industrial floors subjected to for example wheel loads. The moments and punching failure differ between internal-, edge- or corner loading so it would be good to have the soil capacity for the same three cases. And normally there is a 150 mm macadam layer directly under the floor so I guess the method I am searching for has to include the positive effect of the load spread through the strong macadam layer onto the underlying soil that might me critical.
I guess there will be some kind of cone pressure that should be compared to the bearing pressure of the soil calculated with the Terzaghi/Meyerhof/Hansen/Vesic bearing capacity equation but which width should be inserted in the formula and compare with which load distribution? And is it possible to make the load go into plastic failure to "cut" the top of the cone pressure I guess will be induced and how is this calculated? Can someone please guide me step-by-step?
I have a question about industrial ground floors on grade subjected to concentrated loads. I have found complete information about how to handle moment and punching failure but I cannot find any information about how to determine if the concentrated loads will induce a ground pressure failure, i.e. overpass the soil bearing capacity or induce exaggerated settlements on very bad soil. This information is very well explained for isolated spread footings but I cannot find any easy to follow equations for larger floors such as industrial floors subjected to for example wheel loads. The moments and punching failure differ between internal-, edge- or corner loading so it would be good to have the soil capacity for the same three cases. And normally there is a 150 mm macadam layer directly under the floor so I guess the method I am searching for has to include the positive effect of the load spread through the strong macadam layer onto the underlying soil that might me critical.
I guess there will be some kind of cone pressure that should be compared to the bearing pressure of the soil calculated with the Terzaghi/Meyerhof/Hansen/Vesic bearing capacity equation but which width should be inserted in the formula and compare with which load distribution? And is it possible to make the load go into plastic failure to "cut" the top of the cone pressure I guess will be induced and how is this calculated? Can someone please guide me step-by-step?






RE: Industrial ground floors and soil bearing capacity
gives how to design a heavy slab for point loads, linear loads, and traffic loads.
RE: Industrial ground floors and soil bearing capacity
See the "References" on page 67. Another source of information may be the U.S. Federal Highway Administration.
www.SlideRuleEra.net
www.VacuumTubeEra.net
RE: Industrial ground floors and soil bearing capacity
RE: Industrial ground floors and soil bearing capacity