Originally posted by MidwestCamper
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Bar out over the side/rear from the roof
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Originally posted by lager911 View Post
the bad idea is still where i am on this as of now. I was treating it like cantilever beam. metal beam supports the weight as tested so it is more of a can the connection points and roof corner support with out breaking.
Also this is just taking into consideration forces in the Z direction where depending on the activity there could be forces in the Y direction as well. You would be ok in the x direction with a truss like beam running full length of the trailer.
I still would not do it.
JimLast edited by Guest; 06-01-2020, 04:28 PM.
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Originally posted by MidwestCamper View PostNot to disrespect anyone but this is a bad idea where otherwise this is a simple cantilever beam problem.
Jim
Agreed that this is a simple cantilever beam. The concern is holding the inner end of the beam down and the mid point of the beam up. The roof trusses are designed to support loads in the downward direction, not the upward direction. The wall edge may or may not handle the point compressive load of the beam center point support. A "free standing" structure as Keith Yoda suggested, attached to the RV only for stability might make more sense.
RobCate & Rob
(with Border Collies Molly & Angel + Kitties Hazel & Elsie)
2015 Reflection 303RLS
2022 F350 Diesel CC SB SRW Lariat
Bayham, Ontario, Canada
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I wish I had clarified this earlier in the post and it may not make a difference. The only exercises I would be doing on this are dips and pull-ups there actually is no swinging motion I use rings instead of a pull-up bar or dip bar because they add a little bit of instability and are genuinely more convenient to set up. Which is a really funny statement considering this post.
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Originally posted by Cate&Rob View Post
Hi Jim,
Agreed that this is a simple cantilever beam. The concern is holding the inner end of the beam down and the mid point of the beam up. The roof trusses are designed to support loads in the downward direction, not the upward direction. The wall edge may or may not handle the point compressive load of the beam center point support. A "free standing" structure as Keith Yoda suggested, attached to the RV only for stability might make more sense.
Rob
Rather than a beam across the roof, another truss could be used in place of the roof top beam and made of aluminum or better yet titanium. I still do not support doing this even though its interesting.
JimLast edited by Guest; 06-01-2020, 05:27 PM.
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Originally posted by lager911 View PostI wish I had clarified this earlier in the post and it may not make a difference. The only exercises I would be doing on this are dips and pull-ups there actually is no swinging motion I use rings instead of a pull-up bar or dip bar because they add a little bit of instability and are genuinely more convenient to set up. Which is a really funny statement considering this post.
Jim
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Originally posted by lager911 View Post
My problem with these is the setup part and storage in a small 21bhe. Otherwise though I like a lot of these!!
2018 Reflection 150 Series 220RK 5th whee, Star White 2022 F350 King Ranch CC Long bed (HAL) (CCC 4062lbs), B&W 25K OEM Companion,. SteadyFast system, Trailer reverse lights, rear receiver spare tire holder, storage tube, sumo springs, Victron MultiPlus 12/120/3000, Solar, Custom 6K axles upgrade, and other modifications.
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Originally posted by TucsonJim View Post
Been 55 years since...... well lets say not my favorite or best class......but I did pass. HP saved me with the 21 model - I gave up the slide rule and never looked back. Still have 2 though though linear and round one but don't ask me to work one even though I took a class to learn.2018 Reflection 150 Series 220RK 5th whee, Star White 2022 F350 King Ranch CC Long bed (HAL) (CCC 4062lbs), B&W 25K OEM Companion,. SteadyFast system, Trailer reverse lights, rear receiver spare tire holder, storage tube, sumo springs, Victron MultiPlus 12/120/3000, Solar, Custom 6K axles upgrade, and other modifications.
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Originally posted by Yoda View Post
You could add one of these to store it in. Mount it to the rear bumper or frame. https://www.buyersproducts.com/produ...arrier-kit-576
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lager911
This has been and interesting post to say the least. It seems that you have opened a can of worms for the "engineers" to dust off some of the rust accumulated from being retired. I was really hoping this would get the green light some how but I am not sure that the effort will be worth it. I am still holding out on a little hope though.
BrianBrian & Michelle
2018 Reflection 29RS
2022 Chevy 3500HD
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Originally posted by Country Campers View Postlager911
This has been and interesting post to say the least. It seems that you have opened a can of worms for the "engineers" to dust off some of the rust accumulated from being retired. I was really hoping this would get the green light some how but I am not sure that the effort will be worth it. I am still holding out on a little hope though.
Brian
So 1. Need to address compression at the corner both material failure and whole rear wall.
I think I read Jim recommend a support connected to frame not bumper. so what if I added another beam similar to the existing one vertically at the wall connected to the frame / bumper. This would alleviate any compressive force on the actual back wall or corner.
2. The trusses are not designed for an upward pull. I think adding two beams to create an A-frame on the end of the part sticking out wouldn't be too much to ask. Those would then just go to the ground to create a support. The connections on the roof trusses would then only need to be enough to hold it.
3. The two beams that make the A-frame support could be telescoping and stored in the rear bumper during travel.
This is starting to become a good bit of setup each time I want to use it which is what I was trying to avoid. But still way less setup than trying to set up a portable freestanding stand.
All the Best,
Law
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Originally posted by lager911 View PostI wish I had clarified this earlier in the post and it may not make a difference. The only exercises I would be doing on this are dips and pull-ups there actually is no swinging motion I use rings instead of a pull-up bar or dip bar because they add a little bit of instability and are genuinely more convenient to set up. Which is a really funny statement considering this post.Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Howard & Francine
2017 Ford F-350 DRW, '19 315RLTSPlus
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