Great to hear back from people with hands on physical experience. I've never gone tighter than 6" except maybe to add supplemental bars.
Question No. 2: Is 7" c/c rebar spacing ever used. I've never seen it use on any old as-built drawings. Any reason or just designer preference.
It's...
Help me wrap my head around this?
I am familiar with ACI 318 and ACI 350 minimum and maximum reinforcement spacing, flexural and temp & shrink limits, shear, etc. However, I have concerns about just how much rebar congestion results in using a typical 6" o/c spacing with #6 and #7 rebar or...
Thanks Jed. Very helpful to hear advice from others.
My question was really pertaining to the reinforcing requirements of ACI 350-06, 10.6.4.1. While using the severe exposure criteria gives that warm fuzzy feeling that helps one sleep at night my concern was mainly just about over designing...
ACI 350 provides criteria for Normal and Sever Environmental Exposure. I see the requirements for Normal exposure stated in Sections 2.1 and 10.6.4.5 to be liquids with a pH greater than 5, or exposure to sulfate solutions of 1000 ppm or less and Severe being anything exceeding Normal.
Does...
Has anyone devised a clever way to enlarge the mesh size of a model? I inherited a model with a very small mesh that takes too long to run and I can't think of a way to "enlarge" the mesh without going through a pain staking process or reworking the model from scratch.
Thanks in advance...
I'm reviewing a set of calcs for a precast vault in which the designer is using the shortcut formula to calculate the area of steel required in the walls. However instead of using the typical As=Mu/4d with factored loads he is using As=Mu/1.76d with unfactored loads. Where is the 1.76 coming...
I know this is not the best application but can anyone give me in short answer form if I can spec out a 3/4" X 9" stainless steel Nelson Stud to be welded to a 1/2" mild steel plate, in the field. Plate can also be 3/4" if that would help and stud could also be some other corrosive material but...
I have a question about concrete vaults.
I found a precast concrete vault online that will meet my application however now we are making modifications like a knockout and adding a sump. Are large concrete vaults (8'x 10') typically purchased as an off the shelf precast item and modified as...
I understand exactly what I'm saying. Maybe just didn't express it clearly enough. I'll try again
I am a civil engineer, EI but haven't had a chance to do very much structural engineering using the AISC code yet. I was basically looking for a refresher course, tutorial, some brief explanation...
Does anyone have any good tips or references I can use to help me learn how to use the AISC steel manuals to find basic member capacities? It seems a little difficult to decipher everything when you first pick it up. The text doesn't really explain how the tables work or what to look for...
