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Question DetailsAsked on 9/26/2017

How much it cost to add concrete plat form on concrete floor inside building?

4 ft high, 80 ft wide, 43 ft wide plat form to place heavy machineary.

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Wow - that is some base - about 500 CY of concrete - sounds like the foundation for a printing press or garbage sorting plant or stamping machine or something like that. Just for the concrete - not including any foundation work for the concrete platofrm - about $50,000 ballpark in most areas - a bit less in cheap concrete areas.


You DEFINITELY need to have this designed by a civil/geotechnical engineer with a lot of experience in heavy machinery foundations - both so it has proper foundation for the concrete weight (which may require a much deeper foundation or pilings or such to make it stable), for the anchoring of the machinery to both dampen vibration and to properly anchor down the machinery, and for vibration isolation from the rest of the building - and in many cases keeping the foundation perfectly level and free of warping is critical to the equipment, especially for precision machining equipment and such.


Which by the time all is said and done can sometimes (on previous jobs I have worked on) run as much as $100,000+ for simple food process machinery to a half-million to million $ range for a large commercial printing press and for a metal stamping machine as examples - well over $2 million in one case for a very large (60 foot long by 15 foot swing radius lathe for very large turbine and engine shafts and armatures). Just plopping about 1100 tons of concrete on top of the existing floor is NOT going to cut it - in many soil conditions would start punching right through the existing slab, causing it to break up and tilt, if the foundation was not prepared for this load in advance.


Angies List does not have a Search the List category for this - Structural Engineer is the closest they have but most of the listings here are going to be residential size outfits - you need a comprehensive Engineering firm (or combined Architecture/Engineering) which does industrial design work. you could start with AL Structural Engineer listings and ask the people you contact if they do heavy industrial foundations (almost all will say no way) but then ask which local firms DO that sort of work.


Another sugggestion - talk to the manufacturer of the equipment - they commonliy have contacts with A/E firms who do building and foundation design for the structures their equipment is installed in.

Answered 1 year ago by LCD




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