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Engineering Properties of "NJ10-12, NJH10-16, and NJM10-18 Series I-Joists"Footnote (1) Footnote (2) Footnote (3)

Joist Type

Depth (mm)

Weight (N/m)

Moment Resistance (N·m)

Shear Resistance (N)

Bending Stiffness, EI × 106 (kN·mm2)

Shear Deflection Coefficient, K (× 106 N)

NJ10

241

32.0

4 980

6 850

402

20.00

NJ12

302

35.0

6 110

7 560

717

25.08

NJH10

241

33.5

5 190

7 030

519

20.00

NJH12

302

39.4

7 310

8 050

884

25.08

NJH14

356

44.0

10 740

9 520

1 234

29.57

NJH16

406

48.0

12 760

10 630

1 676

33.80

NJM10

241

39.4

10 655

7 025

861

20.06

NJM12

302

42.3

13 815

8 050

1 484

25.09

NJM14

356

46.7

16 635

9 515

2 167

29.58

NJM16

406

49.6

19 285

10 630

2 933

33.81

NJM18

457

52.5

21 940

11 250

3 825

38.03

Additional Engineering Properties of "NJ10-12, NJH10-16 and NJM10-18 Series I-Joists" with No Web StiffenersFootnote (1) Footnote (2) Footnote (3)
Joist Type

Depth (mm)

Factored End Reaction (N)

Factored Intermediate Reaction (N)

38-mm Bearing Length

63-mm Bearing Length

89-mm Bearing Length

140-mm Bearing Length

NJ10

241

6 850

6 850

13 700

13 700

NJ12

302

7 560

7 560

15 120

15 120

NJH10

241

7 006

7 030

14 060

14 060

NJH12

302

7 006

7 718

16 080

16 100

NJH14

356

7 006

7 718

16 659

18 304

NJH16

406

7 006

7 718

17 192

18 949

NJM10

241

7 006

7 006

14 034

14 034

NJM12

302

7 606

7 784

15 391

15 991

NJM14

356

8 140

8 474

16 636

17 748

NJM16

406

8 630

9 141

17 793

19 394

NJM18

457

9 119

9 808

18 949

21 062