hi guys and welcome back to SITENG today's video it's the second one
covering the capping beam drawings and in today's video I'm going to show you the sections of the
capping beam we're going to be looking for the information here and also elevation drawing
elevation of the capping beam any other case the elevation of the liner wall so yeah let's go
so guys in this video i'm going to show you first uh block a and the block c as you watch my uh
last video these are two different designers showing actually the the same kind of works
and uh that's very interesting but as they providing the information in different way
now i downloaded a few drawings you're going to check obviously once you're going to be doing
this you you want to make sure you got all the information taken from the drawing register and
then from your drawing platform whatever is used on your site uh so i'm going to show you that few
drawings as you remember here we got the pile cut off level information on this one but we don't
have information about any columns here on the capping beam and obviously we assuming there will
be some and that's why we checked the GA for the ground floor and always we're going to be doing
that so you can see there will be columns and the column is going to be actually coming from our
capping beam and we we confirmed that obviously on the on the rebar drawing but you can assume this
once the columns are on top of the beam the column starters has to come out of the beam as this bars
they're going to be big bars and they have to be in the capping beam i want to show you the
liner wall elevation drawing here we're going to come back to this joint where we're going to
be doing the liner wall but just to show you the information we had on that GA about the
penetrations it was in here that the penetration looked like they would be below the capping beam
so this drawing here now is our confirmation that that's the case and we don't need any penetration
through our capping beam and you got all positions here you got diameters but that's going to be
installed later so this is good good news for us for now at least once we're gonna construct
in the captain beam they're gonna be a little bit of pain later when we're gonna be doing the
liner wall as you can see this is quite a lot of penetration so they have to be set correctly
while we're gonna be doing the liner wall but that's information we need anyway now when we're
constructing the capping beam so that's that's the typical elevation drawing it's not a capping
elevation and this designer doesn't provide us information show you the the liner wall elevation
and you can see the beam here reception in the beam obviously but the information we can take
from here is as i said about the penetration so i'm going to show the sections as well which this
designer provides so the section is quite okay you can see here uh there is a typical cupping
beam section temporary state that means uh the the capping beam is in temporary state
before we're gonna dig all this area here we go before we're gonna construct the basement slab and
before we're gonna construct the ground floor slab so your permanent state is actually shown in here
so this is quite good drawing in in terms of uh if you want to see what's what's the temporary
condition and what's what's the permanent condition in here so but we're gonna have a
look quickly here I'm gonna zoom it in and uh yeah you can see here and the pile is socketed into
cupping beam 75 mil so that's pile socketed into cupping beam so that's that 75 mil projections I
mentioned on the last video when we checked top of the concrete minus the 1200 plus 75 and that
was our cut-off level so that's pile cut-off level and we can compare with the with the pile schedule
at the cut off level we can we can compare this if it's all working just just to make sure it's
all right but that's how it works you got a 1200 from the top of the concrete plus your 75 mil that
would be your cut cut off level and the blinding level gonna be here so that's gonna be your level
minus 1200 so as you can see here is 880 so the temporary condition we're not going to be
building all the beam in terms of uh concrete obviously the rebar as you can see the rib are
going to be up to here and rebar have to be installed all the way for all the beam
but uh in temporary condition we're going to be pouring only up to here as you can see actually on
my video showing the construction of the capping beam in real life so reinforcement to project
minimum 40 times diameter that's very important information for us and to be bent over in top of
cage if necessary but in this case we got 1200 high beam minus at 75 mil obviously the bar
have to be encoded from from this level so if it's 20 20 millibars are gonna be only 800 so so that's
enough so we don't have to bend the bars as this is a 1200 beam so all this information we don't
need is now we just we can have a quick look on this one suggested top of pile mod level so that
that's what we've done before assumed formation level four this is this is actually different it's
850 as maybe you remember you watched the video that was 500 mods so as you can see there might
be different information different drawings so you can see it's 850 here assumed formation level
but this is not the case this is a section for the capping beam and you're not looking at it
while we're doing the piling mat so that's that's maybe the little tip once you're doing the piling
mat you need to you need to make sure you got all drawings for the piling mat only and once
we're doing the cupping beam this is the cap and beam section we're looking at the capping beam
we obviously we want to have a look here but we're not going by this drawing as you can see this is
completely different to what we to what we have done from from the from the previous videos but
this is a cupping beam and we want to have a look at the cupping beam at the permanent uh state now
so you can see the beam yeah it's it's 1080 beam 1200 high you see that 600 slab connecting to
the beam you're gonna be connecting at different levels so it's here on this drawing that was that
dashed area so 600 thickening off the slab all on the perimeter of the building here and that's how
it looks here on the on the section so we we need to make sure about this level so this level here
we're going to be taking from from the GA drawing as i said as you can see there are some steps
uh we just want to make sure if as you can see there's a steps in the slab so we got 46 990
top of the slabs and 47 140 top of the slab and we're talking about the slab here i can
see this is 600 so it's it's shown actually here that's what we that's what we're talking about
and now in this let's say gridline AJ and h it's 47 140 and if you go back to the
capping beam drawing it's AJ-AH and the top of the concrete here for the capping beam is
forty six seven six five so you can see here next to gridline AJ i hope you hit me now between AJ
and AK you got 46 765 and the top of the slap here AJ AK is uh 47 140 so that would be actually the
case shown uh on this section the slot gonna be a little bit above the top of the beam so
this is the things we need to have a look that's why you need to you need to look at this section
to have it in your head to open your eyes on it to see how it's going to be looking so that'll
be i think all the drawings now uh for block a we got all the information obviously in the next
video i'm going to show you the rebar drawing we're going to talk a little bit about the RC
drawings and then all we're going to do the summary of all these drawings we're going to
double check we've got all the information and if you're going to be good to go and we're probably
going to create our own drawing later i maybe do the separate video for doing the mark ups
taking the sections to our working drawings that will be very important just to create a drawing
for ourselves while keeping all these drawings printed we want one working drawing for ourselves
where information gonna be just make by us and for us really so we're gonna be making our life easier
so now i'm gonna go to block c uh you remember this GA here which was showing the sections
so we know here from this point to this point there is a section 5 on drawing 35 and i'm gonna
open this drawing in a second section five so you can see that drawing refers to the sections
it's a big nice drawing here with the loads of sections so there's a lot of information
but what i can tell you now the information is provided in the very clear and very good way
because once once you got your GA you know where to refer and when we're going to be preparing our
working drawing i'll probably move these sections here and i'm going to do the mark ups with the
different colours so you're going to see how can you make your life easy section number five
you got a section number 12 here 16 section number six in this case let's have a look so
so you know now from this point to this point not gonna be section six so let's have a quick look
section six we're gonna go section six is here that's how that beam gonna be looking in that area
so it's very good guys it's the information is it's i'm really happy with this when i see when
i'm on the job and i see something like this i'm really happy because i know i'm not gonna
be wasting much time for for asking the questions and uh making sure all is correct as this is this
is quite the right and uh let's maybe zoom this in and let's have a look how the typical section
looks so uh yeah it says it's a 1000 deep capping beam 1080 wide so same with it as on the block a
but as you can see here is only one meter deep so it's less than the other one it's partially
constructed 8 30 with it before excavation commences that's very good information you can
see that's our temporary condition which was shown on the other doing actually for the other block
but that's that's very good note here 8 30 with it before excavation commences
here it's a tolerance for the piles themselves for the for the counting pile war as the piles might
be off the level or off the position and they got quite big tolerance so that's why it's 130 here
450 diameter continuous pile wall retention system to be confirmed by piling contractor
so in this case there was no retention system actually there was no temporary works i'm gonna
go cover temporary wars in my one of my videos uh definitely as in most cases actually you're gonna
see the propane system and then reinforcement continuity system so so we know now here
the designer gonna be connecting the slab using the reinforcement continuity system obviously we
need to we need to double check it with the rebar drawing and all the stuff but as you can see what
was very important for us we obviously constructed at the first time we're constructing the beam at
8 30 with it so this reinforcement system going to be installed later in the wall
in the liner wall so that's that's very good info for us as we we don't have to do anything
yet to make sure that we have the connection we have the interfaced finish between the capping
beam and the ground floor slab what we were missing here we were missing the
cutoff level for the piles obviously we can we can sort that ourselves as i said before now we
know there is a from the sections we know there is a 1000 beam and there is a 75 mil a projection
we know taking this level 45 875 minus our one meter beam got going to be 44 875 plus 75 so
that's gonna be 40 for 950 gonna be our cut-off level but as you can see now i'm gonna open the
elevation drawing and this designer actually it's very good information again this designer provides
elevation drawing for the capping beam but you can see here there will be penetrations going
through the through the capping beam and that's very important we got an invert level of this
and it says elevation on captain beam CB1 so our information is all good so we are very happy
actually i think guys that that's all we need really here we got the ga with the with the
columns setting out with the columns you can see the column sizes and then we have it all
sections so the designer show you uh how the beam gonna be looking in this section so he
he took actually his time to show it is is very good but the more information we got the better
and we got also the elevation which shows us uh a cut off level here so you can see it's 400
475 so that's what i said it's 46 400 minus 1 meter deep beam plus 75.04 45 475. so that's very
good guys and i think we'll be all in this video i'm gonna go in the next video i'm gonna show you
the rebar drawing and we're gonna take all the drawings together we're to make sure we got all
information and then we're going to create our working drawings where we're going to be keeping
information for ourselves from the ga from the very first drawing we're opening we're going to
be looking for the for the different information as we we're going to collect all the information
provided on the ga we're going to be then looking for the for the mission information let's say like
columns in this case and then while we're opening this one we got the columns but we don't have for
instance the cutoff level so that's that's how we're going to be working we got the ga and we're
then collecting all information using our g for the ground floor wall elevations all the sections
we can get and that's how it goes so the most the more information we got the better and the
same in this case we actually we were missing the cutoff level so we found it here on the cutting
beam elevation so we got here and once we got the sections here we can look at the section
uh for for the areas provided on the ga so while in this case we got just a typical section for the
we got just a typical section in the permanent uh state for the beam but that's actually well
enough it might be actually all the way around the perimeter of the building it might be actually
same scenario so it's uh it might be enough we double checked it later on the rebar drawing as
well with a connection gonna be provided between the captain beam and the slap and in this case uh
it's very good information so yeah guys uh thank you again for watching if you got any questions
just uh please leave the comments below and i try to reply and explain as best as i can and
don't forget to subscribe to my channel and turn the notifications on and as i said on
the next video we're going to be start covering the rebar drawing which is very interesting and
that gonna complete all our cupping beam drawing information so yeah see you