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  1. dutchie

    Angle of repose for sand

    We are looking for what the angle of repose should be when considering winter sand (the stuff placed on the road up north here). The material is pretty well graded with most particles less than 12mm. If possible, a direction on where we might find this information in a text or website would...
  2. dutchie

    Switch to Civil Engineer - Transmission Design

    Thanks for taking the time to provide your insights MikeDB. I agree, training would be a responsibility of the company. And you are right, represent what you are and let them make a decision whether or not I would be a good fit. I like the comment "all forces equal zero or it's moving" So...
  3. dutchie

    Switch to Civil Engineer - Transmission Design

    Thanks MikeDB, One question, the program PLS-CADD seems to be high on the hitlist of a lot of the positions advertised. I have visited the website, and to me it looks pretty impressive. I have a fair bit of experience with structural design software (Robot and STADD) and thought that taking...
  4. dutchie

    Switch to Civil Engineer - Transmission Design

    Hi everyone, Looking for a little advice. I am currently a civil/structural engineer with good experience in commercial/industrial design. I am interested in making the jump into a utility and working as a civil engineer. The type of work out there seems to be primarily transmission design...
  5. dutchie

    composite slab design

    We are wondering if anyone has any opinions on the best design software for composite slab design. There is one out there by CISC, but i imagine a better version exists based on my experience with other CISC computer programs. Any input is welcome. dutchie
  6. dutchie

    Snow and ice guards

    We are currently involved in a project where we need to provide snow and ice guards for a building. It is an arena with a metal roofing over wood construction and because of some unfortunate heat trapping, snow and ice tends to accumulate in unwanted areas. We would like to know who may have...
  7. dutchie

    Pressure Relief Valves

    Thanks ERV, that site helped a lot, Focht3, we do have the filter designed below the tank, and I plan to dig up that reference just to familarize myself a little more. These valves would be little used, as they are to be in a bioreactor in a wastewater treatment plant. Thanks to both of you...
  8. dutchie

    Pressure Relief Valves

    He has been involved from the start. He has detailed backfill and so on, but hasn't been able to give me the awnsers I am looking for on the PVR's. I have been cruising the net looking for some guidance, but as I stated, nothing great yet.
  9. dutchie

    Pressure Relief Valves

    I am working on a large concrete tank which will located in an area where the groundwater table is likely to be at or near grade a large portion of the time. I am going to install pressure relief valves in the bottom of the tank to ensure it doesn't float when emptied, but i am having a...
  10. dutchie

    We are currently working on a proje

    Thanks everyone, We are on the right track now, dutchie
  11. dutchie

    Anchor point for fall arrest device

    Something else that I believe should factor into this discussion is this. In a lot of cases with fall arrest equipement, the wearer will hook onto a cable, which is attached to permanent anchor points on the structure. I realize this isn't the case in your situation, but I believe the 5000lb...
  12. dutchie

    Pre LSD Unreinforced Masonry Walls

    even under section 16 of CAN/CSAS304-94, that wall would need to be 13.5" wide, so it's already outside of empirical rules. Depending on the extent of the renovations to the building, you may not have to improve the wall by code. In Ontario, refer to Section 11 of the OBC (i think the...
  13. dutchie

    We are currently working on a proje

    We are currently working on a project which will require a mat foundation approx 2m deep x 4m wide x 12m long. At what point, as a rule of thumb, should we worry about heat of hydration causing unwanted cracking in the foundation (various publications state anything greater than 1m in depth...
  14. dutchie

    MY CONTRACT - advice please

    wow, tough spot richarda my situation is not unsimilar in that I relocated to an area where employment options were available, but not a lot of them. It is my opinion, and i stand to be corrected on this, that there is nothing wrong with doing a little networking in your community and putting...
  15. dutchie

    MY CONTRACT - advice please

    not sure where your coming from, but around our parts (ontario, canada) the non-competition clauses are only being upheld in regions where there is economic diversity and the clause doesn't hamper future employment. It sounds like your in a region where such a clause would cause you hardship...
  16. dutchie

    max slope for loading dock

    good idea jheidt, happy holiday's to all... dutchie
  17. dutchie

    max slope for loading dock

    thanks for all the input. We have settled on a value around 7-8% based on a number of things, and very much apprecieate all your feedback. Have a nice day dutchie
  18. dutchie

    Shear Wall Maximum Rebar

    An excellent point by rrmiv, and I would take it even a step further and try not to do anything more than a 20M (#6) bar, and reinforce more cells if possible. Our experience is identical to rrmiv, in practice the mason's often don't prescribe exactly to the standards of construction, and...
  19. dutchie

    Masonry Column Depth

    it matters when you are designing the masonry column as the column dimensions will determine the slenderness ratios. Design codes put limitations on slenderness ratio's and have different prescribed design parameter's for columns which fall below a certain limit vs. those that exceed this...
  20. dutchie

    Waste Water Treatment Tank

    if you could provide a few bits of info it may help. how big is the settlement tank to be. what type of process will be used for the treatment. what is the access to materials at the site you are building at (ie: concrete plants, skilled labour etc.) The types of tanks, sizes etc are...

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