Help with a proejct

[Tangel]

Where it says 4@3'.

I know that it's supposed to be rebar, but:

What exactly does 4@3' mean?

How would I draw that in the program?

Edited October 14, 2010 by Tangel

[fuccaro]

Tangel

Welcome in the forum!

In the future please upload your images here, new users are not allowed to post hyperlinks.

[Cad64]

Where it says 4@3'.

I know that it's supposed to be rebar, but:

What exactly does 4@3' mean?

How would I draw that in the program?

 

That's #4 Rebar at 3' on center.

 

Typically you would write it #4 Bar @ 3' O.C.

[Tangel]

What I'm confused about now is how to draw it.

On the right it says that it'd be a 4/8" diameter (at #4/8 ), which I'm assuming is there as just a note.

Does it just mean that those dots are 3' apart or what?

[ReMark]

You have vertical and horizontal rebar showing in the detail. The vertical bars on the left are spaced 36" on center. On the right side the detail calls for #8's spaced 18" on center. The horizontal bars are spaced 12" on center. You are looking at a section of a concrete wall cut from top to bottom although neither is actually shown. At 11'-0" in height what thickness wall is called for? I do not see it called out in the sketch.

[ReMark]

Would a picture be worth 100 words to you?

 

 

I guessitmated the wall thickness for my bar spacing. Note the #8 bars (larger diameter) have a tighter spacing than the #4 bars on the other side (18" vs. 36"). Make sense now?

[Tangel]

Rest of the picture.

 

I have no idea why I'm not getting it.

Do I just draw a line with dots or what

 

(only doing 2D drawing)

[eyde]

Rest of the picture.

 

I have no idea why I'm not getting it.

Do I just draw a line with dots or what

 

(only doing 2D drawing)

 

It really depends on what is expected of you. Do you need to show a front View (the length of the wall, sketch does not show this) Did you not get anyinformation as to how they want it drawn? It is common practice to draw lines and circles. I work with rebar every day and we use actual size bars to make shure everything works correctly. If you need more help I will be more than happy to help.

[rkent]

Draw with lines or plines, use the donut command for the "dots". The dots are the rebar crosssection, don't draw them true size, use a donut size that shows well.

 

The sketch has everything you need, draw exactly as you see it only with straight ortho lines, you are just making it neat.

[qball]

this is what the note on the right refers to.

But donuts don't really appear at actual size (ie 1/2"), the bulge and pline width aren't necessarily accurate and it depends on the color and plot styles. So the donut should probably have an inside diameter 0, and outside diameter of whatever looks and plots to paper nicely.

[Tangel]

Oh alright so I was just overthinking it haha

[ReMark]

If you closely follow what AutoCAD prompts you for on the command line you can use a DONUT to create the "dots" as you call them. What you are depicting is the end of the rebar as it faces you. I fail to see how you could not make sense of the 3D image I posted. You were kidding, right?

 

You should give some thought as to what goes into a section cut through an object. Sections are usually cut top to bottom or side to side; in rare instances they can have an offset as well.

[Tangel]

No I got what the picture was.

Turns out that it wasn't really explained because the professor sent us all an email about it.

[ReMark]

Maybe your professor needs to take a course himself. It's called Effective Communication through Plain Talk. It's taught by George Bush.

[qball]

W? is that a joke?

[rkent]

http://politicalhumor.about.com/library/blbushisms.htm

A few examples of his effective communication.

[ReMark]

W? is that a joke?

 

Yes it was. I've heard 7 year olds talk with more eloquence and clarity.