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  1. PEFLWI

    Design Guides for Repair of Wood Framing From Termite Damage

    Is anyone aware of design guides or design resources to repair and replace wood framing damaged by termites? The particular job has damage to roof trusses which would be difficult to remove.
  2. PEFLWI

    Shear Friction - Cast in Place Concrete & Precast Concrete

    user277418: Yes, there are uplift forces on the piles. HTURKAK: Where does the 15 psi of allowable friction come from? Is this a service level capacity or ultimate? Unfortunately, this is already poured. We cannot roughen the precast pile surface. Tomfh: There is no horizontal...
  3. PEFLWI

    Shear Friction - Cast in Place Concrete & Precast Concrete

    I should have been clearer. I am concerned about transferring vertical forces both downward and uplift.
  4. PEFLWI

    Shear Friction - Cast in Place Concrete & Precast Concrete

    I have a shear friction question. I am involved in a project where the structural engineer specified hollow precast concrete piles. See the attached sketch. This is already built. The connection of the pile to the pile cap is through rebar and poured concrete in the top of the hollow pile...
  5. PEFLWI

    Code for Tall Slender Stacks

    What code governs the design of tall slender stacks?
  6. PEFLWI

    Column Base Plate - Fixed or Pinned

    Thanks everyone for your help.
  7. PEFLWI

    Column Base Plate - Fixed or Pinned

    Several people have commented about considering the flexibility of the concrete pier. The piers are 3'-0"x3'-0" and 2'-0" tall and sit on a 4'-6" thick mat foundation. Not much flexibility. The base plate, welds and anchors were not designed for any bending moment. When a fixed condition is...
  8. PEFLWI

    Column Base Plate - Fixed or Pinned

    KootK: I don't want the joint to be fixed, but I believe it will function that way. The concrete piers were not designed to resist moment, but I think they should be. The contractor's engineer wants this to be pinned so he won't have to redesign the base plates. If moments are transferred...
  9. PEFLWI

    Column Base Plate - Fixed or Pinned

    I am an engineer that works for the owner of the project. The base plate is 23"x23" and 2-3/4" thick.
  10. PEFLWI

    Cast-In Anchors Misplaced, Need Help with Correction

    I don't think the existing anchors will interfere with the performance of the new anchors. I would use the Hilti program to check the post installed anchors. Have you considered modifying the base plates?
  11. PEFLWI

    Column Base Plate - Fixed or Pinned

    I am involved in a dispute with a contractor about a base plate connection to a concrete pier. The base plate is anchored to a concrete pier similar to the attached detail taken from Design Guide 1. The contractor's engineer is adamant that this can be a pinned connection. He is suggesting...
  12. PEFLWI

    Structural Damage from Lightning Strike to a Home

    see attached photohttps://files.engineering.com/getfile.aspx?folder=31365ad4-e0be-4b10-a86c-dcdc672ee002&file=IMG_0114.JPG
  13. PEFLWI

    Structural Damage from Lightning Strike to a Home

    See attached photoshttps://files.engineering.com/getfile.aspx?folder=7b1cd6f7-0b6f-465b-b286-d94a20f3e7fe&file=IMG_0109.JPG
  14. PEFLWI

    Lightning Damage to Home

    See a second photo.https://files.engineering.com/getfile.aspx?folder=8ce0f17f-7fce-41d4-b165-cf8c4ac4b678&file=IMG_0114.JPG
  15. PEFLWI

    Lightning Damage to Home

    See the attached photohttps://files.engineering.com/getfile.aspx?folder=05938782-3642-44ac-9c03-358e5bbd40a1&file=IMG_0109.JPG
  16. PEFLWI

    Lightning Damage to Home

    I am looking for resources regarding structural damage to a home from a lightning strike. The home is wood constructed, two stories, and in the south. I am seeing very little char. I am uncertain if all the observable damage is from a lightning strike. Thanks.
  17. PEFLWI

    Structural Damage from Lightning Strike to a Home

    I am looking for resources regarding structural damage to a home from a lightning strike. The home is wood constructed, two stories, and in the south. I am seeing very little char. I am uncertain if all the observable damage is from a lightning strike. Thanks.
  18. PEFLWI

    Damage to top surface of a concrete floor slab.

    I need to repair a damaged 4 inch concrete floor slab. A thin layer of the top surface has broken off. See the attached photo. The damage may be due to heat or corrosion chemicals. How would you repair it...
  19. PEFLWI

    Masonry Repair - Repointing and Tuckpointing Specifications

    Does anyone have specifications for repointing (or tuckpointing) existing masonry they would be willing to share?

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