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  1. Logan82

    Should I Do a Seismic Retrofit of a 1970 Bungalow?

    It's true, but I still wanted to know if it's earthquake proof. What type of tools are these? Softwares? Wow so the gypsum is taken into account into the lateral resistance calculation? I'm very surprised!
  2. Logan82

    Should I Do a Seismic Retrofit of a 1970 Bungalow?

    I was not planning to perform renovation in the walls of my first floor, unless it was necessary to perform a seismic retrofit. Initially, I saw no real big problems associated with that. I was curious to see if it was necessary.
  3. Logan82

    Should I Do a Seismic Retrofit of a 1970 Bungalow?

    Thanks for the all the tips! Thanks a lot SWComposites! But I'm still curious, is there a way to calculate the lateral resistance of a first story wall that has no bracings? Nice I have no cripple/stub wall in the basement, and it's super accessible to attach my house frame to the foundation...
  4. Logan82

    Should I Do a Seismic Retrofit of a 1970 Bungalow?

    I wanted to explore the necessity of doing a seismic retrofit because wooden frames used to not have bracings and I was wondering if it was safe, and also because it appeared feasible budget-wise although I would prefer to put my money elsewhere if I could determine that it's not required.
  5. Logan82

    Should I Do a Seismic Retrofit of a 1970 Bungalow?

    My house is located near Montreal, Quebec, Canada.
  6. Logan82

    Should I Do a Seismic Retrofit of a 1970 Bungalow?

    Hi, I have bought a 1970s house. There is one basement and 1 story only (it's a bungalow). I am a structural engineer, but I work mainly on heavy steel structures. I don't have much experience with residential homes. I talked with an engineer specialized in residential structural engineer, and...
  7. Logan82

    Bolts coming loose or acting as a projectile

    Thanks for the U-Bolt Idea!
  8. Logan82

    Bolts coming loose or acting as a projectile

    bones206, are the Lindapter beam clamps meant to stay outside during many years?
  9. Logan82

    Bolts coming loose or acting as a projectile

    I have searched for a standard detail but I have found nothing.
  10. Logan82

    Bolts coming loose or acting as a projectile

    The other engineer didn't want to drill through the flanges or the web or weld on these. His reason is that this is a standardized vehicle guard rail, so it is advisable not to modify it.
  11. Logan82

    Bolts coming loose or acting as a projectile

    Great find thanks
  12. Logan82

    Bolts coming loose or acting as a projectile

    Thank you for your answer. It is a good idea to bend only 1 plate of metal. I can't weld the W either. What does the torque procedure of the second nut look like?
  13. Logan82

    Bolts coming loose or acting as a projectile

    Hi, I want to bolt a structure to hold a road sign board to an existing W that is part of a vehicule guardrail on the side of a bridge. Bolts have a diameter of 5/8 in. The plate has a thickness of 3/8 in. My client has contacted an engineer specialized in bridges, and he told him that we...
  14. Logan82

    Forces on Fences

    The issue I see is that I have seen chain link fences on bridges instead of guardrails. But I have not seen any mention in the chain link standards that the chain link fences need to be designed to prevent fall protection. There is the CAN/CGSB-138 (available for free at...
  15. Logan82

    Forces on Fences

    Yes, the architectural fences are used as fall protection items, since they are adjacent to a 30 inch drop.
  16. Logan82

    Forces on Fences

    If I am not mistaken, this OSHA link is for guardrails, but what about fences?
  17. Logan82

    Forces on Fences

    Hi, My post concerns the forces on two types of fences: Architectural Fences What are the standards specifying the design forces to be applied on an architectural fence to block humans? I did not find any, so I was thinking about using the forces for the guardrails according to the National...
  18. Logan82

    Tensile strength of a specific electrode for an existing weld

    I am interested by the ultimate strength (Xu), not the yield strength. If I am not mistaken, coefficients of reduction of material are used to account for the probability of a material with a lower strength than the average. The CSA S16-19 Design of steel structures specifically says that...
  19. Logan82

    Tensile strength of a specific electrode for an existing weld

    Hi, On the datasheet of the electrode ESAB C6M (CWB CSA W48 E491C-6M-H4), it says on the electrode datasheet that the typical Tensile strength is 550 MPa. Would you say it is safe to use this tensile strength for a structural calculation of an existing weld instead of using the minimum of 490...
  20. Logan82

    House with Foundation Cracks

    There was a wetland there before the construction. I agree, that's the 100 000 $ question. But I would say that jerseyshore has good take on it, see the quote below: ↓ Is it possible that the foundation would have not fully settled after 50 years? While I know that the crack at the back of the...

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