Structural Drafting With Autocad, help with the last 3 plates

[thekenbob1]

dont know if im late here or not, but i am so desperate. so incredibly desperate. if i post some screenshots of the first plate could i somehow get some criticism? maybe walk it through with me, the online instructors do NOTHING and this is my only shot at getting this done before all my classes expire.

[ReMark]

What exactly seems to be the problem? I'm stepping out for dinner in about five minutes but when I return I can at least promise to take a look at any posted images you care to share. Time now is 4:55 p.m. EDST in Connecticut.

[thekenbob1]

this is what i have drawn so far in plate 1.

[ReMark]

So what is your question? Unfortunately the image is such that I can't really discern much in the way of detail.

[thekenbob1]

i was just wondering if this looks about right for the first plate. under the w12x152 beams i showed a footing and and on the bottom left one i showed the dimensions. i put in the channel beams vertically. do you see any major flaws in the drawing even though you cant see thee small details??

[ReMark]

I thought the channels were running in an east/west direction. Yours seem to be running in a north/south direction.

 

Section A-A runs east/west; section B-B runs north/south.

 

Most structural drawings I've seen usually depict only the centerlines of the beams in plan view and not the full shape.

 

You should try to avoid having any lines run through dimensions or text.

 

I've always questioned why in a foundation plan P-F asks the student to show the steel ABOVE the foundation plan. If that's the case it is not a foundation plan in my opinion. Foundation plans should depict the limits of the slab, any footings/piers, and the location of all major columns/baseplates.

[thekenbob1]

what is this section A-A and B-B that you talk about? i will fix all those other things. i'm going to send plate 3 because i think there are some major mistakes with plate 3 because i cant understand what they are telling me what to do in some parts.

[ReMark]

The section lines/bubbles are the ones you have shown on your drawing. I think yours are going in the wrong directions.

 

Re: C9 channels. I checked and yours are sunning in the wrong direction. As per the instructions found on page 8...

 

 

The key word above is "horizontal". You have the channels running vertically.

Edited May 22, 2016 by ReMark

[thekenbob1]

ok so on plate 3 i need help understanding a couple things. so you explained that im just cutting the place in half and explaining what i see. so on plate three i would be drawing plate 2 except from a view half way inside the building?

[ReMark]

Go out to the vending machine and buy a Snickers. Cut it in half and look at the cut end. That's a section. You'll see the milk chocolate exterior and the caramel, nougat, and peanuts interior. Understand?

[thekenbob1]

ok, so now im hungry. i get that part. do i draw it showing five w12x152 beams or showing four w12x152 beams?

[thekenbob1]

i showed it from the side like i thinnk its telling me to do, im also working one the roof. im doing it the way they tell me to do. i have a lot left to add wwhich ill get to, but im not suure if i should show 5 beams or just the 4 like i have. also im not sure how the roof needs to look, i dont know if i sstarted it too high, or ended it too low.

[ReMark]

In this project the vertical structural members would be referred to as columns. Horizontal structural members would be referred to as beams.

 

The plate showing section A-A would have five columns depicted while the plate showing section B-B would have four columns showing.

 

The columns would not be hatched and the "I" beams coming at you would have clips on either side used to attach the beams to the columns. The clips would be pieces of angle iron. The size should be called out in your instructions.

 

Your roof does not look correct in terms of the slope you have drawn. Doesn't it slope towards the middle?

 

If an object passes in front of another object some lines in the second object would either have to be trimmed away or shown using a hidden (dashed) linetype as they normally would not be visible.

[ReMark]

Re: Penn-Foster structural project instructions.

 

No criticism of anyone working on this project but P-F clearly states the overall building dimensions are 54'x72'. Now where I come from rectangles are defined by length and width. The first number should be the length and the second number the width. But almost without exception every student who has posted here, and two instructors that I know of, have drawn the 72' side of the building horizontally and the 52' side of the building vertically and P-F accepts drawings done in this manner. P-F also calls for concrete footings with dimensions of 16x32x32. I always thought it was length x width x height. Is P-F saying the footings are 16x32 and 32 inches in height? No, clearly they are not because all students draw the footings 32 inches square and 16 inches high and this is accepted on the drawings. I wish there was a government entity that could put this so-called "school" out of business. They are a disgrace.

[thekenbob1]

is this how im supposed to attach the columns would be attached to the beams?

[thekenbob1]

they wanted me to do a shed roof which i understand starts from one side and slopes to the other. they want the slope to be 1/8" every 1'.

[ReMark]

is this how im supposed to attach the columns would be attached to the beams?

 

Columns generally go up first with beams following thereafter thus it is beams being attached to columns. Yes, you have shown it correctly. I would still get rid of the hatch on the columns and they would not be shown using a dashed linetype; use a continuous linetype.

Edited May 25, 2016 by ReMark

[ReMark]

they wanted me to do a shed roof which i understand starts from one side and slopes to the other. they want the slope to be 1/8" every 1'.

A sloped floor or slab is not the same as a shed roof. Anyway, I'll have to take a look at the instructions when I have a moment.

[thekenbob1]

is this what you mean? i got rid of the hatch aand the columns. now about the roof, i did it the way i felt was right from looking in the book and also looking back in this forum at what other people have done. can you explain howw it really should be drawn please?

[ReMark]

Do not get rid of the columns. Remove the hatching from the columns as it is unnecessary.

 

Re: roof. The description below can be found on page 14 of the project instructions under the heading Drafting Section A (Plate 3).

 

 

First and foremost the student must properly locate the floor drain in the plan view in order to know where it will fall in a sectional view.

Edited May 25, 2016 by ReMark