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  1. StrLamp

    Clevis hanger support with rod

    Thank you for the attachment. I will take a look. Thank you
  2. StrLamp

    Clevis hanger support with rod

    Thank you, RVA. I think the same. When we say "rigidly connected" structurally, we understand it to mean that it does not allow any rotation. Do you mean that if the hanger can deflect/swing by 4 degrees from the point of connection, then you consider that support flexible and not engaged in...
  3. StrLamp

    Clevis hanger support with rod

    Thank you for the input. They provided us with the thermal loads in both the lateral and longitudinal directions, even for the trapeze supports. I believe the trapeze only resists load through the friction between the pipe and the strut. However, I don’t think the friction is very high between...
  4. StrLamp

    Clevis hanger support with rod

    Hi Little, Thank you for the reply. Please see the attached file. It has about 3" of magnesia insulation, and the pipe will have a saddle plate at the bottom.
  5. StrLamp

    Clevis hanger support with rod

    Hi We are designing the pipe support system for gravity and seismic loads, while another party is responsible for the thermal load analysis. Our standard approach is when a pipe is supported from a concrete ceiling or frame using a clevis hanger and threaded rod, and unless it is braced, we...
  6. StrLamp

    Rooftop Curb Seismic/wind Analysis

    Yes, these are thin metal sheets ranging in thickness from 12 gauge to 20 gauge.
  7. StrLamp

    Rooftop Curb Seismic/wind Analysis

    Hello Everyone, I have recently been getting jobs to analyze rooftop curbs for seismic/wind certifications. These rooftop curbs support RTUs with large areas, so wind is the governing load. Since this is new for me and lack of any references, I am only checking for compression buckling and...
  8. StrLamp

    Seismic Restraint of Non Structural Components ( Mechanical Equipment)

    Thank you, I understand. But vibration isolators come with housing around the spring, something like the one below. Doesn't that work as a snubber?"
  9. StrLamp

    Seismic Restraint of Non Structural Components ( Mechanical Equipment)

    Hi Everyone, The consultant has provided the following specification (see attached) for the attachment of mechanical equipment: they said it must be limited to the lateral force-resisting elements only. For example, in a steel building with OWSJ and a steel deck, they do not allow components to...
  10. StrLamp

    Pipe attachment to brick veneer

    Thank you, everyone, for your input. As the total weight of the pipe is around 370 lb, we ended up anchoring it into the shelf angle at the second level. For the rest, it will be anchored into the brick veneer only at each level, allowing for a bit of slip. Thanks
  11. StrLamp

    Pipe attachment to brick veneer

    Its a gas pipe or water pipe.
  12. StrLamp

    Pipe attachment to brick veneer

    Hello Everyone, I have a problem where I need to run two 1.5" schedule 40 pipes vertically along the face of the brick veneer from ground level to roof level (9th floor). I have to install some clamps anchored into the brick veneer. The weight of the pipe is barely 6 plf. The interior partition...
  13. StrLamp

    Pipe Hanger Load Rating

    Thank you, everyone, for your inputs and suggestions. They have been very helpful.
  14. StrLamp

    Pipe Hanger Load Rating

    Thank you for the recommendation. I will take a look.
  15. StrLamp

    Pipe Hanger Load Rating

    DVD, It has already been installed as per the drawing prepared by a Mechanical P.Eng. of my company. I just joined this company, and I have been asked to determine the load rating. Based on my research, I found that this kind of job is more aligned with mechanical engineering rather than...
  16. StrLamp

    Pipe Hanger Load Rating

    Hi Everyone, I have a question. The consultant is asking for the pipe clamp capacity installed in different orientations. See attached drawings. I attempted to apply curved beam theory using Roark's formula, table 9.2 case 4, but the result is not quite convincing. Even though I reached out to...
  17. StrLamp

    Stability of Vertical Excavation

    I have a quick query regarding the vertical excavation of the soil. Nowadays, our city has issued a new advisory stating that any excavation occurring within 10 feet of the property line needs to be reviewed by a P.Eng. In the urban setting, due to the limited space up to the property line, the...
  18. StrLamp

    Open and tall wall construction in a residential house

    hello, how can we frame the house attached here? the amount of openings is approximately 76% and the middle portion is all open to the full height. thinking of installing a steel frame, but anchoring the steel posts to the 8" plain concrete foundation is another issue. the house has a long...
  19. StrLamp

    impact of excavation to neighbors building

    Hello, I was called by a client to assess the potential impact that will be caused by excavation work being done neighbor's house. As per the information I got from the client, it is understood that both of the houses have the same foundation depth. The neighbor of the client is going to...

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