PILE CAP construction process. CORE CAP foundation

[@aziznurmurodov8328]

Thanks for your lessons

[@SITENG]

It's my pleasure Aziz! Thanks for comment :)

[@TheMrasimqureshi]

Greg, Super video of the pile cap construction. I have to see the rest of the video series to understand the full construction of slip form technique. Very good video with a very high quality HD video. Superb.

[@SITENG]

Thank you Asim! I will try to tell more about it, or if I have a chance I will do a video which I originally meant to do :)

[@happy2b4]

Very good and helpful presentation, thank you!

[@SITENG]

Thank you!

[@JVNS1991]

Hi Greg, how are you keeping? Hope you well! Just a quick question here that came up while I was watching, are you using any kind of shuttering for the bottom slab in this pour? I can see there is some membrane but I haven’t use it before so just curiosity. Also about the waterproofing, here in Ireland waterbar is very common 👍🏽. Great video, keep it up! Thank you

[@SITENG]

Hi Joao! No shuttering there, it was backfilled and poured. It's a waterproof membrane by Rascor, I will give more info when covering the drawings related to core cap. Waterbar is most popular here as well :) Thanks!

[@tonnag7588]

Hi Greg, can you suggest any short courses in the UK for setting out engineers?

[@SITENG]

Hi Rido, unfortunately I can't recommend anything else than you can find online, till my course will be ready ;)

[@tonnag7588]

@@SITENG That's fine, thank you. Could you send me your email address please or any contact details I can contact with you, please ?

[@harnekmudher6287]

Hi , I love these videos, just confused what the difference is between core cap and pile cap?Are they the same thing? Also how is the pile cap connected to the basement slab?

[@SITENG]

Hi Harnek! It's a pile cap as well, just a big one for the core (core pile cap). In this case all pile caps are not connected with the slab (not part of the slab). In other cases where top of the pile cap is the same as top of the slab you have to pour the pile cap lower to enable later continuous slab pour (in this case you can also use a kwika strip if allowed to). In both cases the slab is suspended sitting on the pile caps and the load from columns & walls go directly onto the pile cap.

[@harnekmudher6287]

@@SITENG Hi thank you for replying so quickly so just to confirm, the floor slab is usually cast continuously on top of pile caps to allow for continuous slab? And with the pile caps they aren’t all spread continuously are they just in locations accordingly?

[@SITENG]

Yes, usually. Pile caps are in locations where the building load is transferred into the ground (columns, walls, cores)

[@harnekmudher6287]

@@SITENG great stuff , thank you so much! In the videos there are smaller pile caps you showed, where they not for the main structure? Also will you be doing any more construction sequencing videos? Cheers

[@SITENG]

@@harnekmudher6287 Now I am doing drawings covering the works from site section(hope you will like it too:), but there will be more from site later. Smaller caps are for main structure but for the columns only and the size of these depends on the loads coming from the column.

[@leonardpeposhi5154]

Hi Greg , I would like to know when you cast capping beam is it allowed to leave sleeve pipes for later pouring the retaining walls , if it’s allowed what’s the spacing between sleeves ?

[@SITENG]

Hi Leonard! Yes, you are allowed to use sleeve pipes to later run the service through. I am not sure what do you mean by spacing as this should be provided on the drawing, and there should be a trim detail provided as well for the penetrations (rebar drawing).

[@leonardpeposhi5154]

I meant the vertical sleeve pipes , spaced 1m from each other , and later use these pipes to pour retaining wall which joint at bottom of capping beam ?

[@SITENG]

Ok, I get it:) In this case the beam was poured to internal face of the wall which enable normal pour. Your question would be one to the design team as this would be dependant (spacing of sleeves) on wall height and thk, also rebar Probably different mix approval as well as this is not easy to vibrate (maybe shutter vibration + 10mm chip stone). These walls are usually waterproof concrete as well so you need their approval too. I was mostly using a 'letterbox' which were later broken off and lastly I noticed more designs pouring the beam to the internal wall face. I think, if you can guarantee the proper concrete placing than you are good to go :) Unfortunately I can't give you the spacing and di for your sleeve as this is job depandant.

[@leonardpeposhi5154]

Thanks for your advice . I had one more question related to eazistrip reinforcement. The structural engineer has noted a U bar cast from top of capping beam and than lap later with retaining wall rebars . I would like to know if I can cast the easistrip reinforcement to bottom of capping beam and than pull out rebars when needed to lap the wall rebars ?

[@SITENG]

Yes, that is actually how it's done in most cases, after beam is cast and wall is ready strips are open and connected to wall verticals. This includes a lot of work and quality checks as typically these are waterproof concrete connections and you have to really fight to get these done right:) I myself prefer pouring the beam like on my videos (if agreed by designer)

[@officialAlchemyNest]

Hi Guys Any idea how to set up total station on DOKA jumpform please

[@SITENG]

Why do you want to set the TS on the jumpform? Can't you just get a datum there and measure with your tape?

[@shankarbk4111]

Please full video upload

[@SITENG]

Hi shankar! Not sure what do you mean?

[@MP-ut1xp]

Please whats the diameter of the piles?

[@SITENG]

Hi Maxi! Core ones were 600, but we will have a look at these when I will do drawings video for the pile caps :)

[@MP-ut1xp]

@@SITENG thanks brother.