Hello all:
We have an argument on Abaqus CAE software, whether it is suitable for structural design/analysis or not.
Basically, we found, for example in a bolt connection, when we design base on AISI standard, the other party using Abaqus CAE software to check will reject the design because...
@jec67 (Structural):
thank you for sharing your opinion, but it does not answer my question.
Here is the situation, on my desk, there are 2 design proposals from 2 different engineering company for a same size of water tank project.
One company interpret "r" value in AWWA Code as the fraction...
I would like to get an answer from those who used AWWA code (Factory-Coated Bolted Carbon Steel Tanks for Water Storage) before.
in page 15 of this code, it says:
r = force transmitted by bolt or bolts at the section considered, divided by the tensile force in the member at that section.
My...
There is an argument in our office regarding whether P-Delta analysis is needed. One of my colleague engineer always applies P-Delta analysis in roof beam design, I told him that his conception is wrong, P-Delta analysis is for column/post design, usually under seismic or wind action, not for...
I guess you are talking about following:
ASCE7-10 Crane load 4.9.3: vertical impact load, maximum wheel load for 2 type cranes need increase 25%. (page 16)
Sorry, I forgot to introduce myself.
I currently live in U.S. and work in a decent company (with decent pay and position(senior engineer, PE), over 100k salary, and have been worked in the same company for around 10 years). 16 years ago I immigrated to Canada with engineering master degree and...
moltenmetal, you are an honest gentleman. I do believe Canadian government has made mistakes on its immigration polices (or you can say they lied to outside world about their engineering employment status). Maybe its intention is to build Canada into an ideal heaven country that every body in...
I feel sympathy to moltenmetal. In this real world, an honest person who tells the truth will always likely be ill treated by common people who only want to listen to faked pleasant words.
PostFrameSE (Structural) (OP):
Reading your post, you say:
“…..at least the way I understand the ASCE 7, it doesn't matter if I can use an I = .87 because the 10psf wind pressure on the vertical surface ALWAYS trumps and I'm stuck with pressures that are 150% - 250% higher than what I get by...
My 2 cents:
if it is in a 90mph wind zone, you have to follow 90mph wind speed to do design/checking/sealing. However because it is an agri-business structure, you can use I = 0.87 in the design/checking/sealing, which in the final result will be equivalent to a 83.9mph wind with a occupancy...
NCStructuralEng:
Thank you very much for your input. The reason I asked this question is I have studied a competitor's design, and found their water tank design is nearly 40%---50% overkill in hoop tension capacity than necessary by using 65pcf density. According to customer, the water tanks...
Good morning, Everybody:
Does anybody happen to Possess AWWA Standard or know the water density required for structural design by AWWA Standard? I know it varies with temperature but will not exceed 62.5 pcf and we usually base on 65pcf to design water tank structure. However this water...
Hello everybody,
does any one know the snow rating for Zipcode 28803, Asheville, NC? in my MBS software, ground snow Pg shows 999psf which means need to contact local building official to get the snow rating Pg. However I contacted the local building department and still can not get the snow...
After I re-read the calculation of Archie264's post, I found that before we discuss this issue we need clarify one thing, i.e. what this 5000 lb means? If this 5000 lb means the ultimate strength of the fall arrest system, i.e. to design the fall arrest system fail at just over 5000 lb(say 5001...
