As an engineer, you have a complete freedom to specify the better grade and low moisture content lumber, or factor in the moisture content in your calculations and evaluate the effect of shrinkage. But do not blame the State or the industry. If contractor does not follow the plans, then blame...
ChipB,
I wondering why are you arguing with the contractor about the rebars?
My first question would be: Was there approved plans and details prepared for the project? If yes, then another question is whether the contractor has followed the approved plan. If the contractor has followed the...
There is big resistance from the building industry in the US for embracing LRFD, not becasue LRFD is unsafer. Lutfi has explained why.
ASD's safety factor is not necessarily a "safety factor", it could turn out to be an "unsafety factor", because ASD treats all types of loads as one type which...
It depends on which country you are in.
In US, wide flange (WF) sections are used for beams and columns (deeper for beams and alomst square for columns).
S sections are not very common.
H sections are for piles.
We do not say I beam here in US, except informally.
To estimate rebars, have the owner hire a testing agency to figure out rebars and spacing. Concrete strength can be estimated or found out by another test (taking core samples form non-critical area).
Without these data to substantiate your calculations, you will be taking a huge risk. If you...
Facility to pass strings would be helpful!
After spending weeks playing with the mathcad user DLL thing, I decided, it is not worth spending time.
I have not seen any examples in the web or elsewhere where the user dll could display more than one lines (stings & numbers). My problem is -...
Hi IRstuss,
Now I am able to see the user functions without invoking REGTOOL. I realized, the problem was with the dll itself.
I am disappointed with MathSoft that they allow so little freedom to us as to the functionality. I wish Mathsoft be bit more open minded and liberal.
Hi Mattman,
Could you please show by a code snippet how do you include units in the dll? For example, how do you attach a unit to COMPLEXSCALAR. The whole idea to make the function unit independent
Thanks
I compiled and built the example file 'multiply.c' provided in the userfi folder. I copied 'multiply.dll' file to userfi folder and added function info in 'user.xml' file, but when I wanted to used the function, my function does not appear in the list of user functions.
I used Microsoft Visual...
Yes, let it sit on a concrete pad.
If you need to use wood, it is possible. You need to check shear stress and make sure that the hangers are adequate.
If you think developing your spreadshet a boring, using somebody else's spreadsheet may put you in trouble unless you dissect it for correctness.
Look at appendices of AISC manual there are table which you can use and avoid using the lenghy formulas - eventually you will be doing simple...
Whether you use a bunch of rebar or a solid steel beam, the problem will not go away -- you need to privide adequate development length for bars to be effective.
Try with increased depth, which is a economical solution.
Non-structural limitations may be critical. For example, wood buildings are normally non-rated Type V construction (UBC). Code has limitation on the allowable area depending on Occupancy.
From structural point of view, if your region is seismic region, unless you have enough solid shear walls...
