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  • Users: dannyypk
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  1. dannyypk

    IRC Table R606.6.4

    I am writing to enquire about the IRC table R606.6.4. I believe the table is obtained from the Empirical Design Chapter in ACI 530. In Table R606.6.4, footnote (a) noted the ratio of height to nominal thickness for cantilevered walls. Based on the limitation of empirical design, Seismic...
  2. dannyypk

    Conduit to be embedded in existing concrete slab

    Running into a situation that the contractor would like to embed new electrical conduit into the existing elevated concrete slab ( 8" deep) Any code section (ACI, NEC) has any requirements for the depth of the embedment?
  3. dannyypk

    Masonry / Brick Crack Evaluation

    Hi, Any books recommend to further study about the cause, the pattern, and the repair of the masonry/concrete and brick veneer crack? Recently came across a lot of residential inspection reports. Both foundation contractor and engineer's comments are very subjective and a lot of professionals...
  4. dannyypk

    8x16 masonry piers installation in Crawl Space

    Hi all, I cannot find any code reference ( except modular home code) regarding 8x 16 masonry pier orientation. Is the 8x16 piers supposed to be : Pier Long side parallel to the girder Pier Long side perpendicular to the girder Or it doesn’t matter.
  5. dannyypk

    CAD (residential) Standard

    Hi, all, I am starting my own Engineering Firm and looking for reference and guideline in established my own CAD drawing "style" Is there any book teach how to set up text height, title page, xref, blocks, etc?
  6. dannyypk

    Professional Liability Insurance

    I just started on my own and seems like everyone required liability insurance (1,000,000) for bidding or minimum requirement for getting new projects. I would like some suggestion on any insurance company recommendation for a small structural engineering firm (single , sole proprietorship)...
  7. dannyypk

    Bolting design for Multiply wood beam

    For thru bolt connection in wood beam, often come across situation for side loaded , multiply beam, either same species or different species. I know in NDS 11.3.8 that connection for 4 or more ply , each shear plane shall be evaluated as a single shear connection. In a lot of example, for...
  8. dannyypk

    Moment Connection at stud wall?

    I am reviewing one of my " senior " Engineer works and came across this details. The existing stud wall is over stressed due to the new install roof screen. (moment @ the base of the parapet wall is over-stressed) To reinforce the wall, He claimed he will use the Simpson CS coiled strap to...
  9. dannyypk

    2016, consider Starting my own structural engineering firm.

    Hi, all, Just want to get more opinion about starting my own new structural firms in 2016. Here is the points that support my decision: 1) Experience = over 10 years in residential , small commercial projects 2) MS / BS in Civil Engineering conc. in structural 3) Have multiple states PE...
  10. dannyypk

    concrete balcony supported by the threaded rod design

    I am designing a concrete balcony supporting by (3) 1" dia threaded rod embedded into the concrete balcony 12" (see attachment.) The balcony is designed to supported by the rod not by the block veneer below. I believed the threaded rods had to extended and tied to the blocking in between the...
  11. dannyypk

    Retaining wall crack, solution to fix please!

    I am in the process of investigating a retaining wall. It is a shape of \___ The short side (the diagonal) is about 10' long and the long side is around 26' long. It is a 6' tall wall (meansure from the top of footing). The wall is a drive way retaining wall, so the back side is only 5.5 ft back...
  12. dannyypk

    Concrete pier under sea water

    I would like to see if anybody can give me some reference to desig a footing and foundation in a building which its foundation under the sea water. I am thinking a round pier and wrapped with some kind of material like PVC.
  13. dannyypk

    Sign Footing Design (high moment footing design).

    I am designing a concrete footing for a 26'tall sign. The overturning moment is about 80.97 k-ft.The ultimate momeny Mu = 1.5 * 80.97 k-ft = 121.5k-ft I have a question about the design of that footing. The client wants to embedd the HSS tube steel directly burial into the concrete. I would have...
  14. dannyypk

    Crawl space water problem

    I have just did a crawl space inspection for a house with water problem. There was standing water in the crawl space. When I was there, the insulation were all wet, joists are moisted, and the soil are wet. The owner had installed a french drain around the foundation wall in the interior. They...
  15. dannyypk

    Books recommend

    I am a EIT and had worked in a residential structural engineering firm for a year. I found that I am kind of weak in " connection", "details or drawing review" and roof fraimg. Can anybody suggest a book for me as a reference to improve the aove skills?

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