You must do your part to protect the public safety. The first course of action is not an option.
As for Option 2, you must use your engineering judgement as to whether the x- and knee bracing is sufficient for stability. Look at it hard and decide on which side of the "borderline"...
Your system may work, but there are many varibles to consider, including soil conditions attachment to the structure, etc.
It IS the usual practice for the structural engineer of record to only considered the stability in the completed structure; temporary bracing for stability during...
Here is a tip that was given to me that worked great.
As you know, the morning portion of the exam covers all areas of engineering, while the afternoon portion gives you the choice of a general exam or discipline-specific exams.
When I took the test, all the exams were in the booklet, so you...
Structural Steel (AISC 3rd Edition, 1937): 20,000psi allowable(extreme fiber tension in bending), A-9 steel. As the 3rd Edition came out in 1937, many still used the 18,000 psi allowable for A9 steel, as given in the 2nd Edition.
Rebar: Fy= 40,000 psi, working stress = 16,000 to 18,000 psi...
bhop- I'll fax you what I have in the morning.
I don't have the catalog in front of me; I don't know offhand if the joists you are looking for are in there. Good luck!
JAE- You're right! Maybe I should start a consulting firm exclusively dedicated to providing the Macomber catalog to...
U.S. Gypsum's "Gypsum Construction Handbook" gives this info. It requires relief joints at all columns and control joints for every 30 feet of wall. Go through the book to get the exact references.
It is available directly from USG. You can order it in print or get a free pdf copy...
I have the 1972 Macomber catalog (as you may have gathered from the old thread). It includes "V-Beams" and open web girders. I will fax it to you if you send me your fax number.
Good luck!
I have the 18th edition- 1931- of the Kidder-Parker Architects' and Builders' Handbook. It has a few pages, including sketches, of the Gypsteel system, but no load tables. Here's a synopsis: The Gypsteel system consists of 2-1/2" thick precast gypsum planks reinforced with 3/16" cold...
Please see the following thread:
thread507-35572 it, I give links to the entire text of the OSHA regulations.
With regard to the 4 bolt requirement, c2 is right; here are some more details. "Posts", which can have 2 anchor bolts, must be axially loaded or laterally restrained, as...
There is now a national standard for Taro's original question: ASCE 37-02, "Design Loads on Structures During Construction." I would recommend picking it up. Although it is a slim volume (36 pages), it covers the topic of well.
As for wind loads, it does allow a reduction. Similar...
US Steel has a good web page for galvanizing grade reference:
http://www.usx.com/corp/sheet/coated/hotapp.htm
A60 and A40 are ratings for galvannealed steel. This is a hot-dipped process where the steel is heated after coating with zinc, converting the zinc coating into a harder zinc-iron...
Whoa there, whyun.
From franklewis3's posts here and in thread507-33808, it does not appear that the contractor feels there is a problem. He is not "knowingly omit(ting) something that he feels should be present."
He is a contractor, not an engineer, and it sounds as if he does...
There isn't much detail in your post, but if it is not in the plans the contractor shouldn't build it. He is not an engineer; he should not be determining what is required for the diaphragm. He does not have the knowledge.
If you are the engineer and know what is needed for this particular...
