Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: Caisson cold joint

[Subject Prev][Subject Next][Thread Prev][Thread Next]
"Foundation Engineering Handbook" (Winterkorn & Fang):"The terms caisson, drilled caisson and bored pier are frequently used by foundation engineers to denote drilled pier foundations"
"Residential & Light Commercial Construction Standards" (R.S. Means): "Caissons are concrete columns placed in auger-drilled or excavated holes.  They serve the same purpose as piles..."
Steve Gordin SE
Irvine CA
----- Original Message -----
From: Neil Moore
Sent: Thursday, December 07, 2006 7:41 PM
Subject: RE: Caisson cold joint

From Wikipedia, the free encyclopedia

A caisson can refer to:
  • caisson (engineering) is a retaining structure used in locations normally under water to keep the working environment dry.


At 04:33 PM 12/7/2006, Conrad Harrison wrote:
Maybe a silly question but what is this caisson? I always thought a caisson was a dam like structure used to keep water out, whilst a hole was sunk in a river bed, for the construction of the foundations of bridges and the like. So are these light poles in the middle of a water feature: river, pond, lake?
Steven CONRAD Harrison
B.Tech (mfg & mech), MIIE, gradTIEAust


Roy Harrison & Associates

Consulting Engineers (Structural)

PO Box 104

Para Hills

SA 5096

South Australia

tel: 8395 2177
fax: 8395 8477

From: Mark Pemberton [ mailto:markpemberton(--nospam--at)]
Sent: Friday, 8 December 2006 10:48
To: seaint(--nospam--at)
Subject: Re: Caisson cold joint
I'd be OK with a joint as long as the rebar cage has been designed to take the bending and fully develope the bars on either side of the joint.

Jim Wilson <wilsonengineers(--nospam--at)> wrote:
100ft tall light poles are being erected on 4ft diameter caisson's at a local university.  The contractor has asked if he can place a cold joint down about 4ft below the top of the caisson.  This will facilitate installation of the anchor bolts and templates as well as electrical conduits.
Is this generally acceptable and is it common?  The Engineer for the pole manufacturer designed the foundation, but they have not been asked about the cold joint.  Maybe that answer needs to come from the owner's engineer, but they are electical and not qualified to answer the question.  So they in turn asked me but I know very little about caissons and told them I would at least ask the appropriate people.
Thanks in advance for any advice on this.
Jim Wilson, PE
, PA

Access over 1 million songs - Yahoo! Music Unlimited.

Mark Pemberton, S.E.

Pemberton Engineering
502 Mace Blvd., Suite 2B
Davis, CA 95616

Ph:  (530) 792-0511
Fax: (530) 792-7109