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Foundation costs

Foundation costs

Foundation costs

(OP)
What is the rule of thumb for foundation costs-building costs ratio in the US for a high rise building? Say, column loads of about 20 MN. We are using pile foundations. Something 5% to 10% of the total cost of the building seems reasonable?

RE: Foundation costs

How high is up? for a really tall building you might be high... also depends on soils type and if it is a problem soil.

Dik

RE: Foundation costs

(OP)
About 5 to 10 stories. Seismic area but no liquefaction. Soil are not too problematic but piles may go to 35m~40m.

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