I believe if possible they will connect to the stump. unless the pile cap is too high and hence if they still want that desired ground floor level, they might as well remove the stump and sit directly on the pile cap. after all, the load still transfer to pile cap.

I encounter this design at hill side project in mon't kiara. mon't kiara is a hill hence the name bukit kiara.

EVERYTHING BECOME CONTRACTOR`S FAULT......

as usual....

just share my experience in supplying projects...

one job has five consulant

C&S
M&E
environment
safety
medical consultant(for hospital)

when consultant M&E say I need this steel to be erected here to has stiff suport

then next day consultant C&S say cannot as it may increase its weight per area

soon safety consultant say can, but need to shift it...

in the end, all cost boils down to contractor

1. actually I no idea the exactly function of lacer bar in beam. usually it used to hold the "cage" prior concrete casting. ensure the beam "cage" is in correct shape and position prior concrete casting.

2. bonding tie is also use to hold the rebar. in case when casting concrete it give way go to left or right. it need bonding tie till full length base on the spacing mentioned in the drawing. however if u mention those exposed starter bar that reserve for future then it's just few layers.

u mean S1 in the picture below right?


Attached image(s)

for MRT project, MMC-Gamuda construct all the underground station. for elevated track and elevated station, MMC-Gamuda doing management. they manage those contractor that take different packages of all the elevated track and station. those contractor is gadang, suncon, ijm and etc. from thereon, gadang, suncon, ijm actually not doing physical work, they manage their subcon to deliver the work to them. and that's how construction work can used to stimulate economy.

good question

(1)
there are 2 type of subcontractor namely domestic subcontractor and nominated subcontractor. main contractor have direct contractual relationship with them so if any of them in default, main contractor will have to be liable because after all they are main contractor's baby. the differences is that when nominated subcontractor in default, main contractor can claim those damages against employer if nominated subcontractor not capable of remedy the damages. the reason is because there is a collateral warranty between employer and nominated subcontractor and hence privity of contract established simply because of employer selecting the nominated subcontractor.

but for domestic subcontractor side, main contractor cannot indemnify against employer for all the fault due to the DSC as appointing of DSC is nothing to do v employer.

(2)
Architect. provided u can prove that his design is not workable. there is 1 term called Frustration in contractual term. refer wiki link abt what is frustration
http://en.wikipedia.org/wiki/Frustration_of_purpose


example of frustration is let's say suddenly government announce that material "x" is banned, then it's a frustration that not due to contractor fault.

however if it was proven it's self-induced frustration, then it contractor own fault. this mean the frustration happen due to contractor incompetence. it's duty of contractor to raise up the issue during tender stage. when u accepted the condition during tender stage, u deems to accepting that it's workable.

(3)
yes. u know a term called "silence in golden", apply here so nicely contractor have to request information from consultant when it have no detail. contractor shouldn't take risk propose own thing without seeking approval. after all, if consultant delay in giving information, detail, it is contractor right to claim for extension of time and hence u got loss and expenses due to prolongation.

u know that the contractual term of "tai chi" called burden of proof
http://en.wikipedia.org/wiki/Legal_burden_of_proof

better get the contractor to get approval on material. if the purchase made after approval, then can use that to claim for abortive material cost.

but of course u know, if the cost ain't big, contractor also don't wanna calculative so much. why wanna offend someone that give u job? maybe they will give u even more job in future if u please them? but at the same time they also ask supplier to absorb. if supplier calculate so much also, main contractor won't buy material from u in future also. so it's ur call

This post has been edited by iwubpreve: Oct 21 2014, 10:24 AM

stump is only necessary if there underground services je, dowan kena pilecap because size of stump is smaller than that of pilecaps.

but u see hor, if slab also put inside the pilecap, it seems like the effective pilecaps also reduced might as well reduce the overall depth of the pilecaps. can save rebar formwork n concrete..
oh well.. i dunno also i no see calculations just speaking fr a laymen point of view only..

oic, u concern of quantity of material. but then I believe they did that concern on the magnitude of force more than material. not substantial amount of material are there also, plus this happen on ground level and not all typical level, so cost won't be much.

yalor dowan 1 small mistake risk hundreds of pipu life on top
tis one hi rise wor... foundation must take care vr carefully i suppose

HAHA... MANA ADA SUPPLIER that would absorb the cost...

another thing faced...

insufficient detail in BQ...

ask engineer... ikutla mane mane... or this and that

then supplied, and chief engineerdont want

because BQ need to read in conjunction with drawing, specification and design intent. if info is unclear need to study together with drawing. if the contract is lump sump basis then the BQ is actually just for reference.

Generally speaking, what are your views on property market now?
Bullish, Bearish, or Neutral.

Wrong information, impracticable designs, or unclear specifications. Yup, these problems are faced by many suppliers as well as the procurement officers. Some purchase requests made by the incompetent/young Engineers with incomplete specifications on the BQ, are simply insufficient detail for the purchaser to source the right item or the supplier to provide an accurate quote.

Some Project Managers who authorize the purchase requests also do not check the required specification carefully. For example, young engineers often don't attention to the I-beams that are available in a variety of standard sizes and thickness. The same for piping standards ASTM API BS JIS DIN. When the material is delayed, they will play the blame game.

Besides, the person who performs the material take-offs does not communicate with the Engineers. Engineer obtains the BQ from them and directly fax the raw BQ (with Company chop) to the Suppliers.

This post has been edited by Critical_Fallacy: Oct 21 2014, 04:54 PM

forgot to reply this. yes, I like prefab. the correct term is called IBS aka Industrialized Building System.

following is just my opinion. I actually like IBS. however it seems very difficult to practice here due to the high expenses of doing pre-fabrication. huge equipment expenses require. pre-fabrication require higher cost of construction cost and hence until now not much company wanna adopt it. perhaps the recent capital allowance to increase automation in labour intensive in budget 2015 will encourage the purchase and usage of equipment and more IBS? just my thought.

The time to erect a Prefab building is fast. I've seen how they erected McDonald's at Kulim Landmark Central in 2012.

I have supplied some material to sites which they use polystyrene composite box as well

http://www.iris.com.my/KOTO_IBS/main.html

most BQ state like this

to use wall cladding (as manufacurer`s detail) or (engineer approval- which retrn to first)

I see didn't know there are high expenses involved in IBS.

Another question, what are teh requirements to drive heavy equpiment? Like those mobile cranes...so pro I see those divers

i mean bonding ties in brickwall??