Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Register Log in
  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

US units to SI units 2

Status
Not open for further replies.
espus81

espus81

Civil/Environmental
May 7, 2014
2
Hello, probably stupid but cant find a reliable answer on Google.

I`m reading McCormac`s
30-05-2019_16-03-48_rzovle.png
on shear walls and i`m wondering how to translate the applied force in the calculation example on the shear wall to Newtons. Please see attached picture.
 
Replies continue below

Recommended for you

Sort by date Sort by votes
1 kN (kiloNewton) = 1 football player (approximately 225#)

BA
 
Upvote 0 Downvote
Upvote 0 Downvote
If you're stuck on a conversion you can always take it back to the basics. I'm sure you know the conversion for lbs to kg, then our old friend gravity gets you to newtons.
 
Upvote 0 Downvote
kip = Kilo Pound??
Kilo being SI and pound being imperial?
 
Upvote 0 Downvote
Prefix from old greek
kilo = 1'000 (one thousand)
mega = 1'000 kilo = 1'000'000 (one million)
giga = 1'000 mega = 1'000'000'000 (one billion)
tera = 1'000 giga = 1'000'000'000'000 (one thousand billion)

see Standard ISO 1000 (now, probably, modified)

Ussuri : o tempora o mores !!! (old latin language)

unit%C3%A0_misura_jqd81y.jpg
 
Upvote 0 Downvote
While kilo is associated with SI unit structure, it's not SI exclusively, since it's more for mathematical convenience
> micro-inches, mils (milli-inch)
> kiloton, megaton

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
 
Upvote 0 Downvote
kilo is a prefix for gram, kilogram. kilogram is actually the only base unit in the SI system that has a prefix.

1 kg * g (~ 10 m/s^2) = 1 Newtons. So Newton is actually kg*m/s^2.

Thomas
 
Upvote 0 Downvote
I always remember from Arlo's song, "Coming in to Los Angelees; bringin' in a couple a keys", and the size of a key (=brick) at 2.2 pounds each.
 
Upvote 0 Downvote
Yep BUGGAR, 'keys' = 'kilos' = kilograms = 2.2 pounds. Not familiar with the song, though, and I probably don't want to be.
 
Upvote 0 Downvote
ThomasH : no ! any unit can have prefix "kilo" because means only "multiplied by 1'000". Tables I annexed are from "SI 1000" Standards.
 
Upvote 0 Downvote
Suggest you re-read ThomasH's post. His assertion that kg is the only SI base unit that is kilo-anything is correct.

[URL unfurl="true" said:
https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication330e2008.pdf[/URL]]As an exception, the name of the kilogram, which is the base unit of mass, includes the prefix kilo, for historical reasons. It is nonetheless taken to be a base unit of the SI. The multiples and submultiples of the kilogram are formed by attaching prefix names to the unit name “gram”, and prefix symbols to the unit symbol “g” (see 3.2, p. 30). Thus 10−6 kg is written as a milligram, mg, not as a microkilogram, μkg.
Click to expand...

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
 
Upvote 0 Downvote
Kilo is the troublemaker of SI. Aside from messing up the base unit of mass as above, it should also be upper case K like all the other >1 prefixes (and opposite the <1 prefixes).

Edit: forgot micro. Just use 'u' instead of a Greek character ffs
 
Upvote 0 Downvote
Quote (As an exception, the name of the kilogram, which is the base unit of mass, includes the prefix kilo, for historical reasons. It is nonetheless taken to be a base unit of the SI. The multiples and submultiples of the kilogram are formed by attaching prefix names to the unit name “gram”, and prefix symbols to the unit symbol “g” (see 3.2, p. 30). Thus 10−6 kg is written as a milligram, mg, not as a microkilogram, μkg.

Never understood like this : to my understanding this is only for people not used to metric system (even if correct)
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

jacktbg
  • Question
ACI 360R-10 - Calculating Beta and Fy Units Error/Confusion
Replies
3
Views
102
lexpatrie
lexpatrie
Dan_summit
  • Locked
  • Question
Maintenance platforms gaps between mechanical units
Replies
0
Views
41
Dan_summit
Dan_summit
VVang
  • Locked
  • Question
Load Calclulations - Units 2
Replies
12
Views
95
human909
human909
CorporalToe
  • Question
Apply to Engineering Positions in the US
Replies
2
Views
118
NorthCivil
NorthCivil
Abdelrahman Emad
  • Locked
  • Question
I use MATLAB to define SAP Model us
Replies
0
Views
43
Abdelrahman Emad
Abdelrahman Emad

Part and Inventory Search

Sponsor

Back
Top Bottom