The piles in my project need to be driven about 20m, the piles' length is 25m. The area is completely clear, no obstructions in around a 7 km radius.
I know that many factors affect productivity during pile installation, equipment, soil stratigraphy, labour, weather, etc. to mention a few...
Dear All,
Does anybody have records on pile installation productivity? I would like to know the average installation per driving unit per day, both of precast piles and expanded bottom piles (reinforced), compaction type.
Soil is silty sandy, approximate pile diameter 0.4m x 20.0m lg.
Thank...
Pennpiper,
Yes, the job was a land project and your definition fits perfectly. One last question is are these drawings prepared by the Contractor or by the project's Designer?
I would think that stuffing drawings are prepared by those who perform the job, because they set the fabrication and...
Thank you very much Pennpiper! Your explanation was very helpful. Although, according to some oltimer Brits engineers, the term was also used in the shipping industry. To describe the detail drawings of the stuffing boxes or pipes going thru the ship's hull.
I recently found the following sentences on the records of lessons learned during the process piping installation of a large industrial project:
Engineer should provide stuffing drawings for piperack erection.
Field run piping (shown on stuffing drawings) should also be shown on isometrics...
Could someone update me in the basic layout and requirements for on-site precast plants producing piles?
I have read Chaper 4 of ACI543R-00 "Design, Manufacture and installation of Concrete Piles", but it is not very clear on the basic requirements, other than certification.
Thank you,
Jamie200,
Another proven solution (have done it many times with corroded, off-plumb and short anchor bolts) is, to completely cut off the existing a. bolts leaving enough projection above the concrete (if necessary remove the concrete to a lenght were welding is conforta ble and repour the pier...
homebrewdude,
One issue is puzzling me, doesn't the maximum fillet size on a 1/4" or greater base metal shall be 1/16" smaller than the thinner thickness joined? You have a 1/4" and a 1/2" plates, shouldn't your maximum welding size be 3/16"?
Metngr and standweld have very solid statements, I...
BigH,
My dime is to remind you of the changes of the metal structure in the Heat Affected Zone. What thickness of plate are you trying to weld? You say that it is thicker than 10mm, anything beyond one inch (sorry I'm an imperial system user), may require preheating (something else to add to...
DRW75,
You could also pour your foundations and the a. bolts as per the original design of the old building, and using plastic sleeves to allow some movement on the a.bolts. Check with the anchor sleeve manufacturer, the maximum permitted movement.
Erect the columns and grout the base plates...
mehr27
Another proven solution (have done it many times with corroded or off-plumb anchor bolts) is, to completely cut off the existing a.bolts leaving enough projection to weld a new (and plumbed) section of the same type of rod. The welding shall be complete penetration groove weld and sized...
Is the column erected already? Are the a. bolts at top of the column's foundation? Is this a concrete foundation?
Assuming that it is and that is larger than the base plate, you could calculate the pull-out resistance of the existing a. bolts and determine if they can be susbstituted with...
Tincan,
To use sandblasting, you also need to check the environmental regulations in your area. Those regulations should also have a guideline for permissible techniques to use in selective demolition or restoration. It will save you substantial time and unnecessary effort. I agree that...
DaveAtkins,
You can still find a HP-15c calculator on eBay. At a price tough.
RPN or not, mathematics are universal and if you want something one step ahead, buy yourself a little Pocket PC (perhaps the same price than a new HP-15c) and install the software Pocket 15C Scientific Calculator by...
SperlingPE,
There is something called PocketDGN and PocketCAD, check http://www.pcscad.com; these are used for MicroStation and AutoCad drawings. Both softwares have a "redlining" feature. Another way to work is using your Transcriber directly on the drawings and save your notes as images...
SperlingPE,
I use my Pocket PC on a daily basis to track projects since inception to construction completion, including resources and costs. Used many Excel spreadsheets to calculate beams, until I found a little (and affordable) program called MeTools. It is of true help in the field. you...
Srennekamp,
Thinking further in your problem, your beam is being used. To evaluate the max. wheel load, you need to ensure that the beam does not have undercuts or gauges made by the wheels onto the upper side of the lower flanges. These are noticeable in a visual inspection.
In my...
An old agitator (mixer) was replaced from a side motor unit to an in-line vertical motor. The support structure (2-W10x33, 4.25' between them, 16' span) was deemed acceptable. According to my observations, the beams are rotating 8~10 degrees and this is a concern.
I reviewed the beams cpacity...
I agree with ehcet, the Crane Manufacturer's Association of America standard 74 for under running cranes, has the best procedure to calculate the maximum lower flange wheel loading.
If your beam is new, then you can use the nominal flange thickness, otherwise you would have to measure the...
