continuous beam design
continuous beam design
(OP)
hi engineers
i need help for this problem
shear design and moment diagram of continuous beam of distance 4m , 4m , 2m .
thnks
i need help for this problem
shear design and moment diagram of continuous beam of distance 4m , 4m , 2m .
thnks






RE: continuous beam design
RE: continuous beam design
Mike McCann, PE, SE (WA)
RE: continuous beam design
RE: continuous beam design
RE: continuous beam design
RE: continuous beam design
RE: continuous beam design
RE: continuous beam design
RE: continuous beam design
RE: continuous beam design
www.PeirceEngineering.com
RE: continuous beam design
data given
Fy=460N/mm2
fcu=30 N/mm2
beam size = 250 * 450 mm
live load =2.5KN/m2
brick wall height = 3m
concrete density =25kg/m3
brick wall density= 18kg/m3
thickness of slab= 125mm
thickness of brick wall= 115mm
cover of beam =30mm
cover of slab =25mm
RE: continuous beam design
RE: continuous beam design
RE: continuous beam design
RE: continuous beam design
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: continuous beam design
And in fact the link in the first response gives you all the information you need, with two alternative methods, so you can check you have the right answer.
There is also plenty of free software to do the job, including:
https://newtonexcelbach.wordpress.com/2015/11/29/c...
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: continuous beam design
GoBeam does analysis, not design.
RE: continuous beam design
If it is homework, discuss it with your tutor.
If it is a real job discuss it with a colleague, or if there is no-one who knows structural engineering, hire one.
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: continuous beam design
You’ve really hit on something, we should start selling engineering diplomas here on E-Tips. The income would quickly outpace any ad revenue. We could sell the thrice weekly lessons, the text books and ref. books, we could even sell the homework answers, to the highest bidders, of course. Then, we could even do their daily work for them, for a price of course, once they had oversold themselves and gotten a paying job. Given what we are seeing with many OP’s. these days, there must be one hell of a market out there, with all the pretend engineers runnin around.
RE: continuous beam design
Two cycle distribution is much faster to perform than a full Hardy Cross distribution and has the advantage that it gives the maximum negative and positive moments in all spans regardless of where the live load is placed.
It also gives the minimum positive moment in cases where negative moment can occur across the entire span as perhaps would occur with the 2m span in the example mentioned by the OP.
I don't know if the publication is still available from PCA but it is available on the internet.
BA
RE: continuous beam design
we've given several methods to solve this ... MDM is a good standard, and a good analytical tool to have. You've tried it, well, looked at the link. Have you run though a worked problem? Setting up a MDM problem is a little daunting but you should be able to adapt a worked example to your particular case. The geometry is easy, the loads on the spans a little tricky; then the coefficients are quite tricky, but see how they're used in an example. Then the solution procedure is pretty straight forward, again, once you've worked through an example.
The more you show you've tried, the more tolerant we'll be. This site is meant to be for professional engineers, and maybe you are one. This site is meant for real work, and maybe this isn't school work. Yes, a lot of us are crabby b@$t@rd$ but we like our profession and will try to help those who show they've put in some effort. From what you've posted, I think you want to (or wanted to) work out this problem, we gave you a link and either you tried it or you got confused before you could get going. Show us how you applied MDM to your problem, and we can probably help some.
you may try MIT's "opencourseware" site or there must be lot's of sites online (maybe even a youtube video) to show you how to do MDM.
another day in paradise, or is paradise one day closer ?
RE: continuous beam design
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: continuous beam design
Any information on how they transported it back in time by 24 years?
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: continuous beam design
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: continuous beam design
I guess that transporting a document forward in time is not so difficult, so long as you are happy to stick to 1 year/year.
Anyway, looks like a very interesting publication.
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: continuous beam design
www.PeirceEngineering.com
RE: continuous beam design
A shorter document (10 pages) dealing with 2 cycle distribution is found here:
BA