AASHTO
AASHTO
(OP)
Sorry for the double post - I originally asked this is the wrong forum.
Does anyone know where I can find an example of seismic and wind loading for bridges per AASHTO? I have the third Ed. of AASHTO (I know it's an edition behind for the exam, bit that is what it is at this point). I can't make heads or tails of it and I barely have time to finish tanning the codes I'm familiar with.
Does anyone know where I can find an example of seismic and wind loading for bridges per AASHTO? I have the third Ed. of AASHTO (I know it's an edition behind for the exam, bit that is what it is at this point). I can't make heads or tails of it and I barely have time to finish tanning the codes I'm familiar with.






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http://ww
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Even this weekend (with less than 3 weeks til the exam) was split between actual work and tabbing.
Thanks for that reference, I'll Check it out.
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http://www.fhwa.dot.gov/BRIDGE/lrfd/examples.htm
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Wind Loading - Section 3.8
Seismic - Section 3.10
The references by strucguy are very good. However, the steel bridge example doesn't go into seismic, but the PCI example is good enough for a regular bridge.
Good Luck on the exam/
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The AASHTO that someone let me borrow is AASHTO LRFD Bridge Deisgn Specifications 3rd Edition 2005 Interim Revisions. I'm hoping it's recent enough that I can get out of it what I need to.
I might change it, but not sure to what yet. StructuralPE is already taken.
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For the definition of Tm, the m is for multimodal so if your doing a single mode analsys, m is equal to n.
Past exams the question is usually determine the transverse response or longitudinal response and not both. I've heard/seen (exam examples such as the Illinois SE study guide) longitudinal response more than others. If the pier is monolithic with the superstructure then you'll assume double curvature flexure in the pier for longitudinal direction and the stiffness is the summation of 12EI divided by height cubed. If the pier is not monolithic with the superstructure then you can use the simple cantilever stiffness, 3EI divided by height cubed.
Also, I answered your question in another post but appears it was deleted. You may want to check this link for seismic examlples.
http://www.atcouncil.org/pdfs/ATC492toc.pdf
else check more FHWA sites.
Good luck/
Regards,
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Eng-Tips Forums:Real Solutions for Real Problems Really Quick.
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I did see your post in the other thread, and I bookmarked the page you sent. Thanks for the link and the explanation on Tm!
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http://tris.trb.org/view.aspx?id=794156
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SEIT, I would say that the SERM is just about a required resource for the exam. It is a great summary book, and really just a great reference to have after the test. Regarding AASHTO, you don't have to buy it, but I would strongly recommend getting the correct version. The code changes drastically from year to year.
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A couple things I noted by glancing at the beginning - it says a thorough review should be around 300 hours!!!!!!!! Is that true? I've spent about 16-20 hours tabbing and reading parts of codes that I've had little experience with. - I've done no working of problems whatsoever. Am I doomed here?
Also, it talks about bringing in BOXES of books. Is that common? I was palnning on codes standards and maybe salmon and Johnson, but not so many books that I couldn't carry in one trip.
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I took all the main material design books that I used for work. That way I was familiar with the content. I will caution you to take a good Foundation text like Das or Bowles but preference is for Das as it has many examples. There is ample opportunity to have questions on retaining walls and temporary walls such as sheet pile or even permanent sheet pile apps like bulkheads.
The SERM is good but be careful of following it exactly as the first edition had several (scratch that) hundreds of errors. All of them minor in nature such that the overall methods are ok but the detailed comps are not correct.
Again, good luck, I look forward to hearing from StructuralSE soon!
Regards,
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Eng-Tips Forums:Real Solutions for Real Problems Really Quick.
RE: AASHTO
I did the same as you. Both work and real life were crazy, so I spent only a few days thoroughly tabbing the codes. I only carried in the codes and the reference book. I mainly work with bridges, so i had some doubts going in. I managed to pull it off. I think the keys were to not think too much into the questions and to quickly find information in the code. Good luck.
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I'm going to spend the upcoming weekend reviewing prestress and bridges.
Thanks again to everyone for your input.
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Passed it the second time.
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Thanks again to everyone!