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I'm not sure what you mean when you say the other half of uplift mostly counteracts the uplift OTM. It's my understanding there should be at least one case where all roof uplift acts in the same direction so there shouldnt be counteracting uplift. For clarity, here is some examples from online...

JStephen, it was more of a loads from first principles discussion than a loads from code discussion as it was a general topic rather than particular design to a particular code, and for this example you can assume there is no wind flow (so no suction forces) on the bottom of the container. I'm...

Maybe too many years spent working on unclad structures (pipe racks), etc, to consider roof cladding suction actions.

Hi, I wanted to get some outside opinions on how much suction forces on roofs due to wind contributes to OTM for small modules or shipping containers, Wind load on containers produces pressure on the windward face and suction on the leeward face and roof. There's a discussion on whether or...

If it doesn't make sense to you from a geotechnical point of view, maybe you should be asking in the structural engineering forum if it makes sense from a structural point of view. Maybe it's related to the structural design of the mat itself (thickness, rebar placement, etc) , maybe not.

Maybe some examples would help to understand the differences between approaches. I've attached a 3rd party UK example and found examples from the Philippines and Sierra Leone that look to have a similar approach including the bar schedule full reinforcement arrangements ...

The check should include the self weight of the foundation shouldn't it? If there's net uplift (including the self-weight of the foundation), isn't that an automatic failure seperate to the bearing check that requires increasing the weight of the foundation anyway? Assuming US from the kips so...

@271828 I think you are probably correct about computerized options being slower but I lean towards them because you build a library of sketches that can be adapted without starting fresh every time, I use colour to make my drawings clearer and easier to read, it's easier to correct a mistake...

@271828 , I want to use the sketches to share with the CAD operators, add to design calc reports and sometimes aid discussing options with clients. I'm doing a good bit of work on brownfield industrial sites so there's often non standard details making use of or replacing existing structures...

Can anyone recommend books or other resources aimed at improving structural engineering sketches/drawings either focusing on the improving sketching techniques or providing examples of typical details and or reference material for drawing conventions (material hatching patterns etc)? I've done...

https://res.cloudinary.com/engineering-com/image/upload/v1709028069/tips/BoxCulvert_Typo_hfnptt.pdf I think I found a minor typo in "Structural Engineering Formulas" by Mikhelson. It results in a larger moment for box culverts so should be conservative if used as is. I've attached a pdf...

Yeah the lack of dedicated interface is definitely disappointing, I've watched one or two videos on youtube that show it in practice and I'm not sure I'll have much interest in it's current form. If I had to guess I would say this is excel's way of staying relevant for data analysis and...

I have no knowledge but thanks for sharing the news. Could be very useful in the future. You might have more luck on a forum with a community that is more focused on excel or python. From looking at a few pages on the topic, it sounds like it's only for cloud based "microsoft 365" and the...

I recently received one of Blodgett's books (the 1976 version of Design of Weldments) from a used book store. I did not buy directly from the publisher, James F. Lincoln Foundation, because the shipping costs to UK are minimum $115 for a $25 book). Going through the book, I found there are at...

The challenge in sharing with coworkers will be the human and IT policy factors rather than engineering or programming factors. To answer your questions: >>> what type of challenges you use programming to solve in your work ? >>> what type of language you prefer for these problems ? Whatever...

You will get better and faster results if you learn the official terminology used by excel and vba and use them as keywords in searches (Often supplied in the excel tooltips). Microsoft has an official reference page so you don't need to go to financial examples for the basics...

ProgrammingPE: Thank you very much for sharing your thoughts on the connection. It is appreciated. I was conscious that the tensile load would concentrate around the connection and not be distributed throughout the channel cross-section but I had not found the shear lag guidance you refer to. It...

You may have already read this but there is a previous topic than may be similar and could provide information https://www.eng-tips.com/viewthread.cfm?qid=453315 Edit: There may be value in treating it as a single cantilever with a spring equivalent to the removed beam for each cantilever...

rb1957 : The new owner has different operational needs than the previous one and so the original analysis and design is not useful for this scenario. They want to determine a safe maximum load. your suggested alterations are sensible but beyond the scope of topic of the post. There will be no...

SWComposites: I agree with the concern for that connection, and I have looked at the typical failure modes via hand calcs already. I posted this question incase there might be an non-obvious failure mode I missed. Your suggestions are appreciated. rb1957: if you are referring to the images BA...