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I - BAR SERIES 1

 
CODE Load Bar Size (mm) Cross Rod (mm) Mass (Kg/m2) SPAN - Milimetres
Close End   600 750 900 1050 1200 1350 1500 1650 1800 1950 2100 2250 2400 2550 2700
KA255/IB

KB255/IB		 25x5x3 100 29.3 S
D		 1.39
0.12		 1.74
0.29		 2.09
0.61		 2.56
1.12		 3.35
1.91		 4.24
3.06		 4.71
4.67		 6.33
6.84		              
50 32.2 W
D		 5.4
0.10		 6.75
0.25		 8.1
0.51		 9.45
0.95		 10.8
1.62		 12.15
2.60		 13.5
3.96		 14.85
5.80		              
KA325/IB

KB325/IB		 32x5x3 100 35.5 S
D		 0.86
0.10		 1.08
0.19		 1.29
0.33		 1.59
0.54		 2.07
0.93		 2.62
1.48		 3.24
2.26		 3.92
3.31		 4.66
4.68		 5.47
6.45		 6.34
8.68		        
50 38.3 W
D		 5.4
0.09		 6.75
0.17		 8.1
0.30		 9.45
0.50		 10.8
0.85		 12.15
1.36		 13.5
2.08		 14.95
3.04		 16.2
4.31		 17.55
5.94		 18.9
7.99		        
KA385/IB

KB385/IB		 38x5x3 100 41.2 S
D		 0.62
0.05		 0.77
0.12		 0.92
0.20		 1.13
0.33		 1.48
0,56		 1.87
0.89		 2.31
1.36		 2.79
1.99		 3.33
2.81		 3.99
3.87		 4.53
5.21		 5.20
6.87		 5.91
8.89		    
50 44.1 W
D		 5.4
0.05		 6.75
0.11		 8.1
0.19		 9.45
0.31		 10.8
0.53		 12.15
0.85		 13.5
1.29		 14.85
1.89		 16.2
2.67		 17.55
3.68		 18.9
4.95		 20.25
6.53		 21.6
8.45		    
KA445/IB

KB445/IB		 44x5x3 100 47.0 S
D		 0.46
0.04		 0.58
0.07		 0.69
0.13		 0.85
0.21		 1.11
0.36		 1.40
0.58		 1.73
0.88		 2.09
1.28		 2.49
1.82		 2.92
2.51		 3.39
3.37		 3.89
4.44		 4.43
5.75		 5.00
7.32		 5.60
9.20
50 49.9 W
D		 5.4
0.03		 6.75
0.07		 8.1
0.12		 9.45
0.20		 10.8
0.35		 12.15
0.56		 13.5
0.85		 14.85
1.24		 16.2
1.76		 17.55
2.42		 18.9
3.26		 20.25
4.30		 21.6
5.56		 22.95
7.09		 24.3
8.91
KA505/IB

KB505/IB		 50x5x3 100 51.4 S
D		 0.37
0.03		 0.46
0.05		 0.55
0.09		 0.67
0.15		 0.88
0.25		 1.11
0.40		 1.37
0.61		 1.66
0.90		 1.98
1.27		 2.32
1.75		 2.69
2.00		 3.09
3.10		 3.51
4.02		 3.97
5.12		 4.45
6.43
50 54.3 W
D		 5.4
0.026		 6.75
0.05		 8.1
0.086		 9.45
0.14		 10.8
0.24		 12.15
0.39		 13.5
0.60		 14.85
0.88		 16.2
1.24		 17.55
1.71		 18.9
2.30		 20.25
3.03		 21.6
3.93		 22.95
5.00		 24.3
6.29
 

*This table is theoretical and on a uniform load of 300Kg/m2 (3KN/m²)

GRATING WIDTH AND NUMBER OF BEARING BARS

  No 10 11 12 13 14 15 16 17 18 19 20 21 22
BB
T
PITCH
40MM		 3 273 303 333 363 393 423 453 483 513 543 573 603 633
5 275 305 335 365 395 425 455 485 515 545 575 605 635
6 276 306 336 366 396 426 456 486 516 546 576 606 636

  No 23 24 25 26 27 28 29 30 31 32 33 34  
BB
T
PITCH
40MM		 3 663 693 723 753 783 813 843 873 903 933 963 993  
5 665 695 725 755 785 815 845 875 905 935 965 995  
6 666 696 726 756 786 816 846 876 906 936 966 996  

SERRATED FACTORS
Load Bar 50x5x3 44x5x3 38x5x3 32x5x3 25x5x3
S 0.92 0.89 0.87 0.84 0.82
D 1.12 1.16 1.20 1.25 1.30

STRESS & DEFLECTION FACTOR
Uniform Load kg/m² (KN/m²) 200(2.0) 250(2.5) 300(3.0) 360(3.6) 500(5.0) 750(7.5)
Factor (i) 0.67 0.83 1.00 1.20 1.67 2.50

  • SERRATED I-BAR CODE KA000/30/SI, KB000/30/SI
    W = Load Each Bearing Bar in Kg/each bearing bar
    S = Stree in Kg/mm²
    D = Deflection in mm
    Allowable Stress: 18Kg/mm²
    Allowable Deflection: L(Span)/300mm
  

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