Floor Loading?
Floor Loading?
(OP)
I have a project that is a single story metal building with a garage buried underneath. The client is going rent the building out to companies and expects to be storing landscaping equipment on the suspended slab. Making matters worse, the client would like to be able to add a "prefabricated" mezzanine to the suspended floor in the future which will be used for storage.
The only information I have been able to get out of him with regards to the equipment is that he thinks the heaviest tractor that will be supported is 18 kips. He has been able to give me no information with regards to the mezzanine.
We plan on using precast plank with a 2" concrete topping. I need to relay the loading information to the plank company so they can properly design the plank. I am thinking about specifying a H20-44 loading on the plank to cover the possibility of the 18 kip tractor (seems a bit harsh). However, I do not know how to handle the mezzanine loading on the slab. I was thinking about roughing out a column loading and then having the precast company design their planks for this column load at each end but I am not sure if this is correct.
Any guidance with this would be appreciated. The code used is IBC 2009.
The only information I have been able to get out of him with regards to the equipment is that he thinks the heaviest tractor that will be supported is 18 kips. He has been able to give me no information with regards to the mezzanine.
We plan on using precast plank with a 2" concrete topping. I need to relay the loading information to the plank company so they can properly design the plank. I am thinking about specifying a H20-44 loading on the plank to cover the possibility of the 18 kip tractor (seems a bit harsh). However, I do not know how to handle the mezzanine loading on the slab. I was thinking about roughing out a column loading and then having the precast company design their planks for this column load at each end but I am not sure if this is correct.
Any guidance with this would be appreciated. The code used is IBC 2009.






RE: Floor Loading?
The owner needs to tell you where he anticipates the mezzanine footprint. To allow for flexibility, you could assume the mezzanine will be light storage, although that is asking a lot of a suspended slab.
RE: Floor Loading?
Think of it this way: 10 years from now another Structural Engineer will be designing this new mezzanine - what information will be needed......plus what will CYA
Also, think about how the base plate will be installed into the planks.....don't want to be drilling through strands. May want to note it.
Will also have to handle mezzanine lateral loads (seismic) per IBC 2009
RE: Floor Loading?
Lateral loads are not a concern as the plank would be resting on a CIP foundation system.
RE: Floor Loading?
RE: Floor Loading?
RE: Floor Loading?
What will the precast planks be resting on? If CIP or precast beams, then you may be able to simply lay out the beams so that the mezzanine columns would fall on the beams. It is much easier to design the beams for a large point load than a precast plank (especially hollowcore).