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...
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...
Hi all.
I need help understanding forces in a welded connection. I am welding the end of a W14x61 strut perpendicular to the flange of another W14x61 waler at the end to form a corner. This is a rectangular temporary retaining frame for an excavated pit so all joints are in compression and 4...
I figured out how to record an animation of a walk through or fly by of my model but I can't get my background to come out right. All I get is a black background. Am I doing something wrong?
Please help if you have any ideas. Thanks!!
Ronnie
