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  • Users: kayah
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  1. kayah

    Wood Reinforcement

    Another option would be to jack the beam and bond a strip of carbon fibre reinforcement to the bottom.
  2. kayah

    Expansion joint in 2'-8" foundation slab?

    I'm curious why you need a 1" expansion joint if this is below grade?
  3. kayah

    Minimum size of principal rebar in concrete

    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...
  4. kayah

    drop panels

    Also find out what depth of beams are generally used in your area to form the slab - and make the drop depth a multiple of that.
  5. kayah

    Why have shop drawing review?

    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...
  6. kayah

    Rounding of whole numbers; not decimals

    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)
  7. kayah

    Why have shop drawing review?

    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...
  8. kayah

    Chartered Engineers

    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...
  9. kayah

    Reinforcement Detailing: By Engineer or Contractor

    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...
  10. kayah

    Methane extraction system

    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.
  11. kayah

    Excel combo Box referencing

    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 -...
  12. kayah

    How to handle "See Structural Drawings"

    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...
  13. kayah

    Laterally tied pilecaps

    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...
  14. kayah

    Running a macro/code when Excel starts..

    Put these lines on the "ThisWorkbook" code sheet (not as a module): Private Sub Workbook_Open() CODE End Sub
  15. kayah

    Water-retaining structures

    No, I think that answers the question. Thanks!
  16. kayah

    Water-retaining structures

    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.
  17. kayah

    How to reinforce long shear walls?

    I agree with you there jheidt2543.
  18. kayah

    How to reinforce long shear walls?

    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...
  19. kayah

    Buried Column Bases and Corrosion

    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.

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