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  1. dianium500

    Concrete structural slab - Constructability issues

    If you make recommendations and change his design, this becomes your building not his. Why isn't the EOR responding? Did the client fail to pay a bill?
  2. dianium500

    Temporary Truss Bracing

    I rejected the note as I believe that this is not the EOR's responsibility.
  3. dianium500

    Flat slab FEA model

    Rebar is running through both the column and slab, so my thoughts are that it's appropriate to model with some stiffness. Is pinned-fixed an option? That may give you an economical design.
  4. dianium500

    Temporary Truss Bracing

    I have recently been seeing notes on truss manufacturer drawings that indicate the temporary truss bracing is the responsibility of the building designer. I have always specified the permanent truss bracing but never the temporary. This would seem to fall under means and methods. Anyone else...
  5. dianium500

    Plywood loads per APA vs NDS

    I have always used APA for plywood design and NDS for dimensional lumber only. APA is the expert when it comes to plywood in my opinion. They also set all the span ratings that the manufacturers use to stamp the plywood. Also, have you looked at the APA published materials themselves and not...
  6. dianium500

    ASCE 7 Wind Enclosure Classification Question

    It certainly would make your design more economic to treat each direction differently, but is it really worth it? I mean how much extra concrete and connectors are you saving by doing this? If it's a repeat structure that a builder will build a few hundred of, then yes it's absolutely worth the...
  7. dianium500

    Internal Wind Pressure on balustrade

    What kind of structure are you designing for? Is it an evacuation route where they would have to pass the railings during a wind event? I am curious as to why they would want you to consider that combination.
  8. dianium500

    ASCE 7-10 Table C26.5-2 Saffir/Simpson VS. ASCE Ultimate Loads

    I found your post searching for the same thing. I live in Florida, and it seems that the engineers that write the ASCE 7 code are disconnected with what's reported in the news. In Florida, the news reports go by hurricane category and sustained wind speed. My clients see that 150 mph wind...
  9. dianium500

    Fences greater than 6 ft wind design, Florida

    Anyone have any suggestions of the required wind design for a fence greater than 6 ft? The Florida building code allows for fences up to 6 ft tall to be designed at 75 mph winds, or 115 mph with 3 sec gust but there is no mention of the of higher fences. I could go w/ ASCE's wind...
  10. dianium500

    Bad Welds

    What state is that in? This is why I hate specifying field welds.
  11. dianium500

    Asphalt Anchors

    If I can justify reducing it per ASCE 7-37 that would help.
  12. dianium500

    Asphalt Anchors

    6 months, at least.
  13. dianium500

    Does Wire Rope Strength decrease as it gets longer?

    Strength is based on force over a given area, so it doesn't get weaker. What you may find is that the longer the rope, the more it will elongate and you will need to determine if that elongation is acceptable. If not, you will need to reduce the load due to deflection. See Hooke's law.
  14. dianium500

    Asphalt Anchors

    I am designing for an ultimate wind speed of 150 mph exposure C, so it's pretty substantial. I saw the asphalt anchors can get 1,500 - 2,000 lbs. My thoughts were to take an ABU44 or ABU66 depending on the post, and anchoring it down with an asphalt anchor. I don't know much about these...
  15. dianium500

    Asphalt Anchors

    I am designing a deck for a temporary kitchen required by AACHA. I am trying to avoid tearing up the clients parking lot with footers. I was wondering if anyone had experience in using asphalt anchors. I am thinking on placing the 4 x 4 post directly on the asphalt with an ABU44, then...
  16. dianium500

    Building Design vs. Bridge Design

    I know one engineer that does, and he's a rarity. He started out in building design, then went to work for a bridge engineer.
  17. dianium500

    Roof Overframing Section

    @dik I think it depends on where you live. If this is Florida, I would agree, that trusses are cheaper. Up north, I have heard otherwise. Also, trusses have gone up in price by like 30% in the last few months. For something like this I would frame. @kmart30 How are you planning on getting...
  18. dianium500

    Structural Aluminium General Notes

    The engineer of record would be the designer.
  19. dianium500

    Structural Aluminium General Notes

    I feel as engineers, we should really standardize our general notes, and only edit them for project specific requirements. We should have the same notes for concrete, as s standard industry minimum, same notes for steel...etc. My opinion is that it would help streamline construction, because...
  20. dianium500

    Structural Aluminium General Notes

    That's what I got so far. I was looking for a standard on line to see if anyone has come across this, and this is the best I have found so far. STRUCTURAL ALUMINUM: 1. STRUCTURAL ALUMINUM SHALL BE DOMESTIC ALLOY 6061-T6, DESIGNED IN ACCORDANCE WITH THE ALUMINUM ASSOCIATION'S SPECIFICATION FOR...
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