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Recent content by jefftsolar

  1. jefftsolar

    Uplift Connection Design Spliced Wood

    A knife plate isn't a bad idea! Appreciate the tip! I'm working with the contractor to see what is preferred, but I really like the idea of the knife plate.
  2. jefftsolar

    Uplift Connection Design Spliced Wood

    Good evening, Seeking help and some advice for designing a connection with the following conditions: 1) Two 8x8 Southern Pine beam members joining together on top of an 8x8 column. The 8x8 beam split centerline occurs right at the centerline of the 8x8 column. 2) The connection needs to...
  3. jefftsolar

    Ground Rack Design

    Good evening! So as I'm learning how to design lattice frame structures such as ground racks for Solar PV Systems, there's a lot of confusion to designing to the 2012 IBC (or in my case, the 2014 Florida Building Code). One thing that always gets me confused is the concept behind the ASD Load...
  4. jefftsolar

    Wind Pressures Acting on a Concrete Block Wall with Footings

    Thank you guys for your advice. I actually ran into more information about this project that wasn't given before, and turns out the wall isn't exactly free-standing, but braced on both ends by walls that run like the sketch as shown. http://tinypic.com/r/c6q2b/5 I know that Free-standing...
  5. jefftsolar

    Wind Pressures Acting on a Concrete Block Wall with Footings

    To make things more clear, the objective of this scenario is to check to see if the addition of solar panels mounted to one side of this concrete wall is safe. They require a set of calculations to be signed and sealed by a PE. It's required by a building safety specialist for the state of...
  6. jefftsolar

    Wind Pressures Acting on a Concrete Block Wall with Footings

    DST148 - I agree with you. Since the soil type is not known and more than likely won't be provided, I won't be able to know the passive resistance from the soil surrounding the 10" deep wall footing. Even though this is just a screen wall separating property in a residential neighborhood, do...
  7. jefftsolar

    Wind Pressures Acting on a Concrete Block Wall with Footings

    Jdgengineer - Thank you for your input. Is there a way you can by chance make a photocopy or screen shot of that example of a wall footing you have and send it over to me via private message or anything of that nature? Steellion - Good input from you as well, thank you. When you say "Check...
  8. jefftsolar

    Wind Pressures Acting on a Concrete Block Wall with Footings

    Keep in mind, I'm only an EIT with 1 year of experience trying to solve this problem. I have a concrete block wall made nearly entirely of 4x16x12 solid block that is not attached to a building of any kind. The wall also have 8x16x12 Pilasters spaced 12'-0" on center typically. The wall spans...
  9. jefftsolar

    Concrete Screw into Concrete Roof Tile

    Appreciate the advice on this project, and yes, this is a solar panel project for mounting on a flat or barrel tile roof.
  10. jefftsolar

    Concrete Screw into Concrete Roof Tile

    I'm trying to empirically prove the strength of a concrete screw into a typical concrete roof tile. Here's the technical data of the concrete screw I want to spec. http://www.concretescrews.com/technical-info/tapcon-concretescrew.aspx I've been informed that concrete tiles are usually 1"...
  11. jefftsolar

    Anchoring into Hollow Core Concrete Slab

    Hello, i'm new to this website, and seeking advice on this situation. I currently have a design which involves a roof that is sequenced like this. -The top of the roof has a 1/2" layer of tar and gravel -Underneath is 1" thick rigid board insulation -Underneath the rigid board insulation is 2"...

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