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  • Users: Mixtli
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  1. Mixtli

    Break down costs of delivery charges of electricity in Ontario

    Hello everyone, I hope this is the right place to post this question, if not, please direct me to the right place. I want to learn how the electricity provider calculates the Delivery costs in Ontario. As per the Ontario Energy Board, they break it down in: - Customer Service charge (fixed) -...
  2. Mixtli

    Ultrawood gazebo

    Hello everyone: Does anyone have experience with this type of enclosed gazebos made of what they call "ultrawood"? I've been asked to quote for stamping it here in Ontario, CA, and the only thing I have is the assembly manual and a letter stamped by a PE from California 13 years ago (the letter...
  3. Mixtli

    Several scenario loading

    Say I need to run a combination with Load A and then another scenario that includes the same combination and load B. Is there a way to have Etabs or SAP2000 doing this without having to define the whole combination when combining it with Load B? Thanks in advance M.
  4. Mixtli

    History of CL-625 Live load for CHBDC

    Would anybody know how we got to this load, CL-625? or that can point me in the right direction to investigate? Back in the day they would design for HS20 (AASHTO) Cheers M.
  5. Mixtli

    MTO structural manual and CHBDC

    Hello there, I posted this on the bridge forum, but no responses, so maybe posting here.... Any one here have experience with bridges in Ontario owned by municipalities? The question is: does the MTO Structural Manual apply for municipally owned bridges, or only for MTO owned bridges? It is...
  6. Mixtli

    MTO structural manual and CHBDC

    Hello there, Any one here have experience with bridges in Ontario owned by municipalities? The question is: does the MTO Structural Manual apply for municipally owned bridges, or only for MTO owned bridges? It is general knowledge that CHBDC applies when designing or evaluating a bridge and also...
  7. Mixtli

    Engineer of Record

    Hi everyone, Can anyone shed light on the figure of Engineer of Record in Ontario? I searched on the PEO website and couldn't find anything with that title or referring to that. If there is such figure/title in Ontario can you guys point me to some references where I can read a bit more about...
  8. Mixtli

    Hi everyone, Does anyone have an

    Hi everyone, Does anyone have an idea of Magnum stone precast wall costs? I know it depends on many things. This is for geogrid retention wall in the Ottawa region. Sell price of the Magnum stone would help, and I'll take it from there. Thank you all M.
  9. Mixtli

    Floating Docks

    Hello, Does any one know of a good reference to designing of floating docks? Also does anyone know where I can obtain guidance in terms of the testing the pontoons to guarantee air tightness? is it a standard test as like wet installations in building? Thanks a lot in advance M.
  10. Mixtli

    Does anyone have experience with MT

    Does anyone have experience with MTO (Ontario) contracts? We are at a bit of stand off here with the interpretation of a contract that references a special provision that calls for a Quality Verification Engineer (QVE) signing a Certificate of Conformance (CofC) signing off on these precast...
  11. Mixtli

    type 10 (general use) and type 30 (high early) on the same mix

    Hi everyone, Just wondering what happens if we mix both types of cement on the same mix? do they interact negatively between them? or will it become like a mid strength HE? Thanks all. M.
  12. Mixtli

    Stud welding on 20ga over 1/4in angle

    Hello there, We are planning to weld some 3/8in stainless steel (SS) Nelson studs onto our trusses, chords made of 2L2x1.5x0.25in; we want to use galvanized sheet metal as stay in place forming for our concrete on top. The reason to use galvanized sheet metal is for corrosion protection. The...
  13. Mixtli

    Stud welding over galvanized 20ga on 1/4in thick angle.

    Hello there, We are planning to weld some 3/8in stainless steel (SS) Nelson studs onto our trusses, chords made of 2L2x1.5x0.25in, the thing is that we want to use galvanized sheet metal as stay in place forming for our concrete on top. The reason to use galvanized sheet metal is for corrosion...
  14. Mixtli

    Lifting pins for precast culvert

    Hi everyone, I posted this on the Prestressed/Precast engineering forum, and great responses, but I am interested specially on knowing how much liberty a P.Eng has to not to follow code, or follow an out of jurisdiction code and what happens liability wise: would insurance cover in case...
  15. Mixtli

    3 Sided culvert 12+ m span

    Hi there, This culvert has an overburden of 2m and therefore the wheel loading from ONT truck has to be spread by using a pyramid which base is B=b+1.75H on each direction. Now, S6-14, 6.12.6 states the following: "When distributed wheel loads from two or more wheels overlap, the total load of...
  16. Mixtli

    Shop drawings from Engineering drawings

    Hi all, What are your thoughts on a precasting company utilizing engineering drawings as shop drawings?. What they do is mark up the stamped drawing with their piece mark, attach a bar list, doing a take off from the stamped drawing, i.e. counting the bars on the stamped drawing (dots) and...
  17. Mixtli

    Following manufacturer specification

    Hi everyone, I have been asked to stamp an assembly drawing for a precast culvert, for which I have no issue, after I review a number of things. But the concern is that the specified lifting pins don't pass when I do my calculations. I have been told by my manager that they will run the issue by...
  18. Mixtli

    fire stop and floor system rating

    hi everyone, There's this mezzanine inside a warehouse where they missed to rate the floor system (of the mezz) and as a result of this the CBO instructed the contractor to rate all the exterior walls with 2hr rating; one of this walls is a partition that runs all the way to the ceiling of the...
  19. Mixtli

    Concrete break cone for a double inclined anchor hoop

    Hi guys, I've never designed an anchor of this type. I'm wondering what would be the concrete cone configuration at break. if the anchor is at 90 with the concrete it is easy, even giving an angle to the load, but when the anchor is not at 90...... Also, just for sakes, how about if only one leg...
  20. Mixtli

    wwm strength

    Hi all, I posted this on the bonding and welding forum with not too many responses, The cross joint of structural mesh shows one wire embedding into the transverse one which is the result of the electrical resistance welding, right? I'm just wondering if there should be any concern on the...

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