beautifulhills
Specifier/Regulator
- Jul 26, 2014
- 30
My task as designer and specifier is to write up a brief for a readily built steel frame, to give to a structural engineer. The back ground - the cut steel and components will be shipped to ... the jungle. Yes. A team of untrained military personnel will assemble the frame (same frame design, scores of times) They will have a simple guide with two or three pictures to work from. A qualified steel fabricator will produce these components, presumably including some limited welding, prior to shipping to the... jungle.
Given the repetitive nature, it is worth spending design and structural design time up front to make the process as easy and simple as possible. In fact, that is all that will be accepted.
The frame is to be 19'L x 7.5'W x 8'H. The frames will be stacked 3 high. I beams top and bottom along all the horizontal lengths, and 4 x 4 tubes vertically. Unsurprisingly ALL will be bolted.
The structure, stacked, will have the strength and engineering parameters of a single family home.
- What would be a good way to fix the tube holders on to the bottom i beam? - using bolts assumedly. A photo is attached of very approximately what these large square 'sockets' will look like. OK - people aren't going to like the post holders, two right angles welded onto the tops and bottoms of the posts offsite before shipping, and then bolted at the assembly site is good?
- Easier for the tubes to extend up to the top of the top horizontal i beam at the corners, or, up to the bottom of the ibeam?
- There will be some braces for seismic. What would be the best design to readily bolt the C channels onto the (inside) of the frame for the lateral braces?. Or alternately the best design to attach pre made connectors to the beams to then bolt the channel to those connectors and create the lateral braces?
The frames will look approximately like the attached, except with no welding.
[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1614989251/tips/solo-pergola-post-base-and-wall-mount-bracket-for-6x6-wood-posts-1-pack-metal-part-167_720x_e4jdma.webp[/url]
Company policy prevents me from simply tossing this over the wall to a structural engineer. I must give guideline directions per above.
Insights appreciated.
Given the repetitive nature, it is worth spending design and structural design time up front to make the process as easy and simple as possible. In fact, that is all that will be accepted.
The frame is to be 19'L x 7.5'W x 8'H. The frames will be stacked 3 high. I beams top and bottom along all the horizontal lengths, and 4 x 4 tubes vertically. Unsurprisingly ALL will be bolted.
The structure, stacked, will have the strength and engineering parameters of a single family home.
- What would be a good way to fix the tube holders on to the bottom i beam? - using bolts assumedly. A photo is attached of very approximately what these large square 'sockets' will look like. OK - people aren't going to like the post holders, two right angles welded onto the tops and bottoms of the posts offsite before shipping, and then bolted at the assembly site is good?
- Easier for the tubes to extend up to the top of the top horizontal i beam at the corners, or, up to the bottom of the ibeam?
- There will be some braces for seismic. What would be the best design to readily bolt the C channels onto the (inside) of the frame for the lateral braces?. Or alternately the best design to attach pre made connectors to the beams to then bolt the channel to those connectors and create the lateral braces?
The frames will look approximately like the attached, except with no welding.
[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1614989251/tips/solo-pergola-post-base-and-wall-mount-bracket-for-6x6-wood-posts-1-pack-metal-part-167_720x_e4jdma.webp[/url]
Company policy prevents me from simply tossing this over the wall to a structural engineer. I must give guideline directions per above.
Insights appreciated.
