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  #1  
Old Posted Feb 14, 2012, 10:47 AM
shaune shaune is offline
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engineering studies pls help!!!

can you please help me with this question..... anything that is helpful pls drop it down

question is :

You are to research and produce an individual Engineering Report comparing and contrasting steel I beams and reinforced concrete beams for use in bridge construction.

e.g.
-Properties
-Manufacturing process
-where are they used and why
etc
plssss help
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  #2  
Old Posted Feb 14, 2012, 4:36 PM
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Tony Tony is offline
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huh? Do your own homework. It's called Google.
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  #3  
Old Posted Feb 14, 2012, 5:01 PM
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dchan dchan is offline
Mandate...get it on.
 
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Is this for high school or college?
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  #4  
Old Posted Feb 15, 2012, 11:27 AM
shaune shaune is offline
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plss i got so much to do for other subjects as well !!!!!
i need help i cant find much,.... atleast give me the website that has info



and its for high school !!!
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  #5  
Old Posted Feb 15, 2012, 3:32 PM
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Youth these days.. and I though our generation was f'n lazy. You have the freaking internet right in front of you, you can check your library's website for books, you can check the catalog at your school.

DO YOUR OWN HOMEWORK.
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Old Posted Feb 15, 2012, 3:39 PM
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dchan dchan is offline
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Check out this website from Tata Steel Construction, a British firm:

http://www.tatasteelconstruction.com/en/

The educational section is under the "reference" heading. There's a specific "Student Guide to Steel Bridge Design" somewhere on the site, but I don't remember where exactly. The site is a good resource on all things related to steel construction.

You're on your own for finding resources on reinforced concrete beams, but I will give you a hint. Think about where some bridges are located and in what climates, and think about why it wouldn't be a good idea to use steel beams in those locations.
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Last edited by dchan; Feb 15, 2012 at 4:09 PM.
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  #7  
Old Posted Feb 16, 2012, 6:38 AM
shaune shaune is offline
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@ tony im not f#$kn lazy ok, i just got so much other shit to do. ever done the HSC???? and i didnt tell you to do my H.W for me, i only said give me usful websites f#%k
and no one asked u if u dont f34kn know shit dont reply keep on reading and do watever shit u doo ok... people these days they cant shut their mouths.

^^^^^^^^^^^^^^^^^^^^^^

@dechan... thnx bro i really Appreciate It. thnx for the time
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  #8  
Old Posted Feb 16, 2012, 12:03 PM
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uh-huh... see, youth these days. We're all doomed. Go back to your MTV Lady Gaga garbage and Jersey Shore, instead of doing your own research for your own homework.
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Old Posted Feb 16, 2012, 8:24 PM
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No problem shaune. But next time, please attempt to type in proper English grammar before you ask someone for advice and direction on a project. And avoid using more than one smiley, and any smiley other than this one .
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  #10  
Old Posted Feb 16, 2012, 10:12 PM
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Quote:
Originally Posted by shaune View Post
You are to research and produce an individual Engineering Report comparing and contrasting steel I beams and reinforced concrete beams for use in bridge construction.

e.g.
-Properties
-Manufacturing process
-where are they used and why
etc
plssss help
Okay, well, in the spirit of making you do your own homework, I won't give you too much, but I'll try and guide your research some.

First, my assumptions. It sounds like you are comparing regular everyday highway bridges. Small span bridges. In other words, not cable-stayed bridges, suspension bridges, or other larger structures. We need to be talking apples to apples, or else this is pointless.

Second, your research will be easier if you use the correct terms. And going back to my assumptions, I assume you are comparing concrete versus steel GIRDERS.

So I am assuming that you are comparing steel girders (I-beams, as you described them) to similarly-shaped concrete girders. I also assume pre-stressed, since you mentioned fabrication? Are you excluding concrete box girders?

The Federal Highway Administration has plenty of examples/information you'll stumble across if you're using the correct google search terms. Here, for example, are design examples for a pre-stressed concrete girder bridge and a steel girder bridge.

http://www.fhwa.dot.gov/bridge/lrfd/fhwanhi04043.pdf
http://www.fhwa.dot.gov/bridge/lrfd/...4041_steel.pdf

As for the advantages of each. There are some engineering advantages of each, and maintenance differences, which you'll find when you google. But most of it is going to come down to cost. There are some environments where one may make more sense than the other, but there are fewer and fewer things that you can do with steel that you can't also do with concrete, and the lead-time for concrete girders is shorter.

Also, keep in mind your sources. If you read this, for example, don't forget that this is coming from a pro-steel group: http://www.shortspansteelbridges.org...eelBridges.pdf You'll find stuff from concrete groups too.

Other things to think about comparing the two - span lengths (how far you can go without supporting piers), initial costs, life-cycle costs (including maintenance and repair costs), seismic considerations (if you live in earthquake country, which I don't), material availability (it can take a long time to get custom steel beams, especially in some areas), and constructability. If I were you, I'd google every one of those words.

That should be more than enough to go off of, plus what others have posted. Good luck! And remember how lucky you are to have the internet for research... when I was in high school, I would've had to find a local engineer to talk to and/or go to a library.

Last thing, your state department of transportation probably has a PDF Bridge Design Manual that might be good for you to look at also. Google it. Here's Colorado's, just as an example - http://www.coloradodot.info/library/...-design-manual. There are plenty of direct steel vs. concrete comparisons, though, that you'll see when you google.
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  #11  
Old Posted Feb 17, 2012, 7:15 AM
shaune shaune is offline
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thank you very much guys,
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  #12  
Old Posted Feb 25, 2012, 2:04 AM
JohnMarko JohnMarko is offline
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Quote:
Originally Posted by shaune View Post
@ tony im not f#$kn lazy ok, i just got so much other shit to do. ever done the HSC???? and i didnt tell you to do my H.W for me, i only said give me usful websites f#%k
and no one asked u if u dont f34kn know shit dont reply keep on reading and do watever shit u doo ok... people these days they cant shut their mouths.

^^^^^^^^^^^^^^^^^^^^^^

@dechan... thnx bro i really Appreciate It. thnx for the time
Ahhh - yes, YES YOU ARE LAZY!!!

God, you sound like a crybaby republican...

Try listening to your professor and use the REQUIRED READING LIST they gave you!!!
Ever hear of "the google"?

WE had "lots of work to do and WE didn't have the internet, and we had to do all our own reasearch and homework - from the library's books!!! Go to the fucking library or do a google search, for chrissakes!

At this rate, you're never going to make it in the real world.

And FYI - being able to use "autocad" is not a skill - it's like us when we knew how to use a PENCIL!!!
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