Typically we would use 15M as the minimum diameter because 10M bars have a tendency to be disturbed (bent) during construction - particularly when they are stood on.
Using 15M bars often makes placement easier too as fewer bars can be used.
The code probably wouldn't specify a minimum as it...
Yes, but everyone potentially benefits from shop drawing review, not just the contractor, as jbarba (and others) pointed out.
I am sure that consultants do take responsibility for the extent of the review they conduct, regardless of the small print used - which is why it needs to be clear...
Or you could install the "Analysis TookPak" Addin (Tools - Add-Ins... - Check "Analysis ToolPak" & Click "OK") - a standard excel add-in as far as I am aware.
Then you can use the function MROUND - which lets you round to multiples. eg. =MROUND(A1,25)
I agree with you to a certain extent, but when you review shop drawings, what are you actually reviewing? Our approach is that shop drawing review is only to determine conformance with the general design concept - that the drawings have been interpreted correctly and reflect the intention of...
Just a few comments based on my own experience of both Canadian and UK systems. From what I can tell, the Canadian system is, unsurprisingly, somewhere between the US & UK approach - PEng licences are isssued by provincial engineering associations, for which you need a certain amount of...
Canadian standard practice is now for the consultant to show basic details (size, spacing etc) and the detailing is left to the contractor (with shop drawing review by the engineer). In cases where the details are particularly tricky then the consultant should still show what is required.
I...
Does anyone have any tips or references for design of a methane collection system below the ground floor of a building (built on organic fill). I know we have install perforated pipes to mechanically vent the sub-floor, but that's about it. Thanks in advance.
Another trick that might work is Data Validation.
First define the list of options (motoring...rent...???)with a name (Insert - Name - Define) somewhere on one of your worksheets, which can then be hidden.
On the sheet where people enter their expenses, highlight the cells than select Data -...
I'd agree with TW. Too often "see structural" means that the architect can't be bothered to check what the structural drawings show, or expect the structural engineer to provide support for some late addition about which (s)he has no knowledge.
On the other hand sometimes we will put...
Consider a large building separated into different components with expansion joints. The structure is supported on short piles, tied together laterally (situated in a seismic zone).
Should the pilecaps be tied together across (below) the expansion joints, or not?
Thanks for your thoughts...
What is the North American (US +/or Canadian) code of practice for designing water-retaining concrete structures?
I have ACI 350, but it doesn't go into as much detail on crack control and serviceability requirements as I expected. Can someone steer me in the right direction?
Thanks.
Each element in the structural system will resist a "share" of the lateral load, but the amount of the load that each element attracts will be proportional to its stiffness (assuming rigid diaphragm etc).
As a shear wall is (generally) much stiffer than a rigid frame, the contribution...
This sounds like an interior (controlled) environment, so the concrete should be protection enough.
You may find S16.1 Cl.6.5 (Corrosion Protection) or Cl.29.1 (Cleaning, Surface Preparation & Priming - General Requirements) useful.
