Thank for for breaking this down. Your videos have helped me so much, especially with ELF and Welds. Also, I saw you on a construction podcast a few months ago where you talked about raising your hand and not fearing asking a question because you think you’ll look stupid, chances are, there’s someone else just as lost as you lol. That has helped me so much. Keep doing what you’re doing man, you’re going to pass the SE. I believe in you! Thank you for your guidance!
Is there an equation for a cantilevered column with a pinned connection? I’m a residential engineer and I’m constantly recommending people fix their posts and columns into the concrete when they try to just use a post base. The reason why is the post sways like crazy and racks when it’s only got the post base (it’s only pinned so rotation is allowed).
Hi! I know what you are getting at, but strictly speaking a "pinned" cantilever is an unstable system from statics. When this condition is used, it should be combined with something like a cantilevered diaphragm from above to provide lateral support. then the column is purely a gravity element. its good of you to be recommending fixed base connections! but sadly there are few products that achieve this. Most often the posts need to be set into a concrete foundation which also isnt great as wood and concrete contact is a no-no for longer term performance.
@@Kestava_Engineering thanks! we recommend knee braces a lot because it helps decrease the lateral forces significantly. But still I would love to calculate the stiffness of a pinned connection and compare it to a fixed somehow…
@@jonathanmezzenga2501 if the column is pinned at the top and the bottom the stiffness of the column would be 0, and no load would transfer through the column (laterally) that is looking at it purely from a pen and paper stand point. this is not true in real life as ther are many other smaller actions happening. Ex. post base although a pinned base, still has some amount of fixity, there is some amount of fixity at he top of column through the nails (almost none, but some!) and so on.
@@Kestava_Engineering no worries, english is not my native language. I wanted to know how you can calculate the forces for each story and then in each wall for that story
Typically, everything regarding torsion is a brainer, hard to find info(torsion resistance modulus etc) for different cross sections, solid rectangle, RHS, I beam/ C shape, Omega, etc. Also for critical plate buckling with different fixing types, three sides fixed-one free, three hinged-one free, two(L type) fixed or hinged-two free all in compression.
glad your videos are back!
More to come!
Tank you, Tim! This topic is awesome. It is very helpful.
Thank for for breaking this down. Your videos have helped me so much, especially with ELF and
Welds. Also, I saw you on a construction podcast a few months ago where you talked about raising your hand and not fearing asking a question because you think you’ll look stupid, chances are, there’s someone else just as lost as you lol. That has helped me so
much. Keep doing what you’re doing man, you’re going to pass the SE. I believe in you! Thank you for your guidance!
thank you for your confidence! I appreciate your support!
Amazing content!
Appreciate it!
Informative
Great video!
thanks for checking it out Ryan! anything youd add - im always open for suggestions and corrections from the master!
still waiting for the video with your big announcement "Passing the SE" 😆
Same.
Same lmao
would this displacement be the same as "δxe" (elastic deflection) from 12.8.6 in ASCE 7?
Is there an equation for a cantilevered column with a pinned connection? I’m a residential engineer and I’m constantly recommending people fix their posts and columns into the concrete when they try to just use a post base. The reason why is the post sways like crazy and racks when it’s only got the post base (it’s only pinned so rotation is allowed).
Hi! I know what you are getting at, but strictly speaking a "pinned" cantilever is an unstable system from statics. When this condition is used, it should be combined with something like a cantilevered diaphragm from above to provide lateral support. then the column is purely a gravity element. its good of you to be recommending fixed base connections! but sadly there are few products that achieve this. Most often the posts need to be set into a concrete foundation which also isnt great as wood and concrete contact is a no-no for longer term performance.
@@Kestava_Engineering thanks! we recommend knee braces a lot because it helps decrease the lateral forces significantly. But still I would love to calculate the stiffness of a pinned connection and compare it to a fixed somehow…
@@jonathanmezzenga2501 if the column is pinned at the top and the bottom the stiffness of the column would be 0, and no load would transfer through the column (laterally) that is looking at it purely from a pen and paper stand point. this is not true in real life as ther are many other smaller actions happening. Ex. post base although a pinned base, still has some amount of fixity, there is some amount of fixity at he top of column through the nails (almost none, but some!) and so on.
@@Kestava_Engineering yes that’s true there is some fixity. There is a chart in the ASCE steel Manuel somewhere that shows the degree of fixity.
Great content as always, very instructive ! How do you calculate your lateral forces repartition in your building ?
not sure I follow? what do you mean by repartition? im dumb with words
@@Kestava_Engineering no worries, english is not my native language. I wanted to know how you can calculate the forces for each story and then in each wall for that story
Typically, everything regarding torsion is a brainer, hard to find info(torsion resistance modulus etc) for different cross sections, solid rectangle, RHS, I beam/ C shape, Omega, etc.
Also for critical plate buckling with different fixing types, three sides fixed-one free, three hinged-one free, two(L type) fixed or hinged-two free all in compression.
I vote no music.