Structural Engineers' eBook

Cold-formed Steel Joist Design

Joist 1

Section 600S200-43(50)[

Loads
Dead       20.00 lbs/ft 
Live      100.00 lbs/ft

Deflections
Live  L/ 636 = 0.184 in
Total L/ 570 = 0.205 in

Strength Check
(M/Ma)2+(V/Va)2  =  1.05 

Ordinate
x ft
    0.00
    2.44
    4.88
    7.31
    9.75
 
Live On
M in-lbs
    0.00
 8555.63
 8555.63
    0.00
-17111.25
All Spans  
V lbs
  438.75
  146.25
 -146.25
 -438.75
 -731.25
 
Live On
M in-lbs
    0.00
 -356.48
-2138.91
-5347.27
-9981.56
Odd Spans
V lbs
   12.19
  -36.56
  -85.31
 -134.06
 -182.81
 
Live On
M in-lbs
    0.00
10338.05
12120.47
 5347.27
-9981.56
Even Spans
V lbs
  499.69
  207.19
  -85.31
 -377.81
 -670.31

 

Joist 2

Section 600S200-43(50)[

Loads
Dead       20.00 lbs/ft 
Live      100.00 lbs/ft

Deflections
Live  L/ 636 = 0.184 in
Total L/ 570 = 0.205 in

Strength Check
(M/Ma)2+(V/Va)2  =  1.05 

Ordinate
x ft
    0.00
    2.44
    4.88
    7.31
    9.75
 
Live On
M in-lbs
-17111.25
    0.00
 8555.63
 8555.63
    0.00
All Spans  
V lbs
  731.25
  438.75
  146.25
 -146.25
 -438.75
 
Live On
M in-lbs
-9981.56
 5347.27
12120.47
10338.05
    0.00
Odd Spans
V lbs
  670.31
  377.81
   85.31
 -207.19
 -499.69
 
Live On
M in-lbs
-9981.56
-5347.27
-2138.91
 -356.48
    0.00
Even Spans
V lbs
  182.81
  134.06
   85.31
   36.56
  -12.19