Leveling nuts & Leveling plate 1

[manikandan.GM]

Dear friends,

please let me advise , In contract drawing they don't about Leveling nuts & Leveling plate.but they provide
only 1 1/2" non shrink grout .please let us know whether we use Leveling nuts & Leveling plate if they not given in input.
please find the attached snap for detail..

 

[klaus.]

What is you question or problem ?

 

[bridgebuster]

In a way, leveling nuts and grout pads serve different purposes. A grout pad gives you a level bearing surface, however, the top of your grout pad has to be a particular elevation. In your drawing, it says 1 1/2" grout pad; suppose the top of the pedestal is higher or lower than designed? You would have to adjust the grout pad thickness. leveling nuts give you the ability to set the plate at the design elevation. In NY for overhead highway sign structures we don't use grout pads; the sign is supported by leveling nuts only, for which the anchor bolts are designed. Also with roadway luminaires, I've seen them supported on grout pads; I've also seen them on leveling nuts and grouted afterwards to keep debris and dirt from accumulating. Unlike a steel column, a difference in the design elevation of the luminaire base plate versus the as-built doesn't matter.

 

[wannabeSE]

I may not understand the question. The non-shrink grout is installed after the column is set and placed in final position. Leveling nuts or shims (Leveling plates) are typically used before the non-shrink grout is poured. Often times, leveling nuts and shims aren't shown because it is considered the contractors means and methods, sometime additional information is in the specs or referenced standards (AISC 303). If you have a question about a specific detail for a specific job, you should ask the engineer of record.

 

[manikandan.GM]

I think, my question is not clear.

In structural drawing. The client not provide information about the Leveling nuts or Leveling plate.

As a steel detailer , I have to provide anyone like Leveling nuts or Leveling plate while submitting erection or fabrication drawing?

 

[klaus.]

What country are you in ?
I still do not understand your problem
If you need a shim plate or something similar then put it in....why not ????

 

[manikandan.GM]

wannabeSE

Thank u. my question not for specific detail for a specific job.i am asking the engineer of record.

 

[delagina]

If Issued for Construction drawings from Engineer did not show leveling plates or leveling nuts, as a detailer, you don't have to show in your shop/fabrication drawings leveling plates or nuts.

Construction contractor will still put shim plate under the base plate so they can put grout even though it's not in shop/fabrication drawings.

 

[StrucPEng]

In my experience working for a detailing company for a few years this is really a means and methods situation. Since you are the detailer, as you noted, you should coordinate with the erector and in some cases the fabricator (if they are the same person) and see if they normally use leveling plates and nuts and if so what do they want for this application. Most likely they will want them but there are other methods depending on the erector. This is not really for the engineer of record to specify how the column gets erected.

 

[WARose]

In the in the immortal words of Spike Lee: English! English!

 

[Celt83]

Are RFI's not still a thing??

I hate this current trend of subs/GC's just doing their own thing when something isn't clear or seems off instead of just asking a simple RFI to clear up any confusion.

@manikandan.GM:
Submit a Request For Information to the engineer of record to confirm if the absence of leveling plates or nuts is the intention. I'd also put a big clouded note on your shop drawing asking the engineer of record to again verify the intention.

EDIT: As usual I didn't read the whole thread and failed to see that you, manikandan.GM, noted you were going to ask the engineer.

Open Source Structural Applications:

https://github.com/buddyd16/Structural-Engineering