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  1. #1
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    Default Can some one help me with stuctural drafting.Thank the lord is back

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    Hello,
    Am doing the structural drafting project (online student)
    I placed the w12x152, w12x45 and c9x20. but i dont understand the following:
    the channel beams rest on the bottom flange of the girders. there is a 1" gap from the web of the girder to the end of the channel.
    • Each channel beam is bolted to the girder with a
    1/2

    thick angle. Each leg of the angle is 4
    , and the angle is
    6
    wide. There are two angles used for each channel
    beam, one at either end of the channel. The angle is
    bolted to the backside of the channel using two
    5/8Ø
    bolts that are 2
    1/2long. Each bolt is positioned 1 1/2

    away from the end of the angle as well as 1
    1/2away
    from the nearest side of the angle. Two more bolts with
    the same dimensions fasten the other leg of the angle to
    the web of the girder. These other two bolts are also
    positioned 1
    1/2away from the end of the angle as well

    as 1
    1/2away from the nearest side of the angle.
    Please help.
    Thank you.

  2. #2
    Super Moderator SLW210's Avatar
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    I think they want something like this......
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  3. #3
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    What he said, except I think the angle is supposed to be on the "backside" of the channel.

  4. #4
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    may be am doing it all wrong. so if the yellow one is the w12x45 and the red one is the c9x20 i don't know what the color blue one is. this is what i got so far. am i in the right direction?

    Thank you.Untitled.jpg

  5. #5
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    I remember this question now. Apparently the instructions describing the construction are not written very clearly. http://www.cadtutor.net/forum/showthread.php?55591-Need-help-on-structural-drafting-project/page2

    http://www.screencast.com/t/c2ljZjL0x7

  6. #6
    Super Moderator SLW210's Avatar
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    Quote Originally Posted by nestly View Post
    What he said, except I think the angle is supposed to be on the "backside" of the channel.
    Correct, I just threw something out there for him to get a visual, I have placed so many on the inside of the Channel I just did that out of habit.. The blue is the L1/2 x 4 x 4 6"Lg. I left out the bolts and bolt holes as well, I am not doing the project for him.

    If you plan on doing structural work, you need to get some related books, those are standard connections. http://www.google.com/#q=Structural+...95f80f89536f59
    “A narrow mind and a fat head invariably come on the same person” Zig Zigler



  7. #7
    Super Moderator SLW210's Avatar
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    Quote Originally Posted by nestly View Post
    I remember this question now. Apparently the instructions describing the construction are not written very clearly. http://www.cadtutor.net/forum/showthread.php?55591-Need-help-on-structural-drafting-project/page2

    http://www.screencast.com/t/c2ljZjL0x7
    I cannot access screencast from work, could you post it here?
    “A narrow mind and a fat head invariably come on the same person” Zig Zigler



  8. #8
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    Quote Originally Posted by SLW210 View Post
    I cannot access screencast from work, could you post it here?
    I don't think I can upload/attach it to the forums since it's around a 3MB .swf video. I can throw it up on rapidshare in a zip file if you like.

  9. #9
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    It's in a free account, so it will expire after 10 downloads.

    http://rapidshare.com/files/45303231...12-29_0038.zip

  10. #10
    Super Moderator SLW210's Avatar
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    I can't do rapidshare from work either. I will check it out from home tonight.
    “A narrow mind and a fat head invariably come on the same person” Zig Zigler



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