หนังสือ พฤติกรรมและการออกแบบจุดต่อ-NEW.indd

133

สําหรับเกิดการแตกราวเน่ืองจากความลาที่ทอแกนรอง
เม่ือ t = 4.0 mm จากตารางท่ี 5.7 จะพบวาเมื่อ Srhs,brace = 44 N / mm2 มีคาซึ่งนอยกวาขีดจํากัดของ
ความลา คือ 147 N / mm2 ดงั นนั้ จึงไมเ กดิ ความเสียหายเนื่องจากความลา

โดยสรุป จุดตอที่ 6 มีอายุความลาที่ 660,000 รอบและสามารถเกิดความเสียหายเนื่องจากความลาที่ทอ
แกนหลักได

134

แบบฝกหัดทายบทที่ 5

1. จากตัวอยางการออกแบบตานทานความลาของจุดตอในโครงถักระนาบเดียวดังรูปท่ี 5.14 จง
ตรวจสอบกําลังตานทานความลาของจุดตอที่ 6 ในกรณีที่เปล่ียนจากทอกลมเปนทอส่ีเหล่ียม
จัตุรสั ดงั น้ี
ทอ แกนหลกั ขนาด SHS 175x175x6.0 mm, fyo = 235Mpa, E=206 Gpa
ทอแกนรองขนาด SHS 100x100x4.5 mm, fy1 = 235Mpa, E=206 Gpa

บรรณานุกรม

1. Anami, K. (2000). Fatigue Strength Improvement of Welded Joints Made of High
Strength Steel, Doctoral Dissertation, Tokyo Institute of Technology.

2. Berge, S. (1992). Fatigue Strength of Tubular Joints, Fatigue in Offshore
Structures, W. D. Dover and A.G. Madhava Rao, A.A. Balkema Publisher, Brook
fields, pp. 336-358.

3. CIDECT (1991). Design Guide for Circular Hollow Sections Joints under
Predominantly Static Loading.

4. CIDECT (1992). Design Guide for Rectangular Hollow Section Joints under
Predominantly Static Loading.

5. CIDECT (2001). Design Guide for Circular and Rectangular Hollow Section
Welded Joints under Fatigue Loading.

6. Gurney, T. R. (1979). Fatigue of Weld Structures, Cambridge University Press, 2nd
edition., Cambridge, UK.

7. Iida, K., Sakurai, H. and Hayashi, S. (1978). Fatigue Strength of Weld Tubular K-
Joints of 800 N/m2 Class High Strength Steel. IIW-XIII-872-78.

8. JSSC (1993). Fatigue Design Recommendations for Steel Structures.

9. JSSC (1995). Fatigue Design Recommendations for Steel Structures.

10. Kuang, J.G. (1977). Stress Concentration in Tubular Joints, Paper OTC 2205,
Offshore Technology Conference, Texas.

11. Kurobane, Y., Makino, Y. and Ochi, K. (1984). Ultimate Resistance of Unstiffened
Tubular Joints, Journal of Structural Engineering, ASCE, No. 11, pp. 385-400.

12. Kurobane, Y., Ogawa, K., Makino, Y. and Ochi, K. (1986). Local Buckling in
Tubular K-Joints, Thin-Walled Structures, pp. 23-40.

13. Lalani, M. and Morahan, D. J. (1996). Fatigue Behavior and Ultimate Capacity of
Grouted Tubular Joints, Proc. 7th International Symposium on Tubular Structures,
pp. 349-354.

14. Maeda, T., Uchino, K. and Sakurai, H. (1969). Experimental Study on the Fatigue
Strength of Welded Tubular K-Joints, IIW-XV-269-69.

15. Marshall, P. W. (1992). Design of Weld Tubular Connections, Elsevier Publishers.

136

16. Morgan, M. R. and Lee, M. M. K. (1997). New Parametric Equations for Stress
Concentration Factors in Tubular K-Joints under Balanced Axial Loading,
International Journal of Fatigue, Vol. 19, No. 4, pp. 309-317.

17. Morahan, D. J. (1996). New Data on Fatigue and Ultimate Limit State of Grouted
Tubular Joints, Offshore Technology Conference, Houston.

18. Otake, F., Sakamota, S., Tanaka, T., Kai, T. and Nakazato, T., and Takigawa, T.
(1978) Static and Fatigue Strength of High Tensile Strength Steel Tubular Joints for
Offshore Structures, OTC 3254.

19. Packer, J. (1995). Concrete-Filled HSS Connections, Journal of Structural
Engineering, Vol. 121, No.3, pp. 458-467.

20. Puthli, R. S., Foeken, R. J. van, and Romeijn, A. (1996). Guidelines on the
Determination of Stress Concentration Factors of Circular and Rectangular Hollow
Section Joints, Fatigue in Offshore Structures Book, Edited by W. D. Dover, and
A.G. Madhava Rao, Balkema Publishers, pp. 129-153.

21. Rodabaugh, E. C. (1980). Reviews of Data Relevant to the Design of Tubular
Joints for Use in Fixed Offshore Platforms, Welding Research Council Bulletin.

22. Romeijn, A., Puthli, R. S. and Wardenier J. (1993). Guidelines on the Numerical
Determination of Stress Concentration Factors in Tubular Joints, Proc.5 th Int.
Symp. on Tubular Structures, Nottingham, pp. 625-639.

23. Romeijn, A. (1994). Stress and Strain Concentration Factors of Welded Multiplanar
Circular Hollow Section Joints, Delft University Press, Netherlands.

24. Tajima, J., Tanena, K., Miki, C. and Ito, F. (1984). Fatigue Strength of Truss Made
of High Strength Steel, Proc. of JSCE, No. 341, pp.1-10.

25. Uchino, K. Sakurai, H. and Sugiyama, S. (1973). Experimental Study on the
Fatigue Strength of Welded Tubular K-joints, 2nd report of the joint eccentricity on
the fatigue strength, IIW-XV-344-73.

26. Udomworarat, P. (2001). Structural Performance of Composite Tubular K-Joint for
Truss Bridge Structures, Doctoral Dissertation, Tokyo Institute of Technology.

27. Wingerde, van A. M. (1992). The Fatigue Behavior of T- and X- Joints Made of
Square Hollow Sections, Delft University of Technology, Heron, pp. 1-182.

28. Wardenier, J., (2001). Hollow Sections in Structural Applications, CIDECT.

29. Wordsworth, A. C. (1981). Stress Concentration Factors at K and KT Tubular
Joints, Fatigue in Offshore Structural Steels Conference, ICE, pp. 59-66.

30. Wordsworth, A. C. and Smedly, G. P. (1978). Stress Concentrations at Unstiffened
Tubular Joints, European Offshore Steels Research Seminar.

ภาคผนวก ก
ตารางคุณสมบัตหิ นา ตัดเหล็กโครงสรา งประเภททอ

138

ตารางคุณสมบัติเหล็กหนา ตัดทอ กลม มาตรฐาน JIS G3444

y

xx

y Outside Inside Thickness Weight Cross Geometrical Modulus Radius
diameter diameter sectional moment of of
Section mm kg/m of inertia
mm mm 2.0 0.97 area cm4 section gyration
CHS 15x2.0 mm 21.7 17.7 2.0 1.24 mm² 0.607 cm3 cm
CHS 20x2.0 mm 27.2 23.2 2.3 1.41 123.8 1.26 0.56 0.7
CHS 20x2.3 mm 27.2 22.6 2.3 1.8 158.3 1.41 0.93 0.89
CHS 25x2.3 mm 34 29.4 2.3 2.29 179.9 2.89 1.03 0.88
CHS 32x2.3 mm 42.7 38.1 2.5 2.48 229.1 5.97 1.7 1.12
CHS 32x2.5 mm 42.7 37.7 2.3 2.63 291.9 6.4 2.8 1.43
CHS 40x2.3 mm 48.6 44 2.5 2.84 315.7 8.99 3 1.42
CHS 40x2.5 mm 48.6 43.6 2.8 3.16 334.5 9.65 3.7 1.64
CHS 40x2.8 mm 48.6 43 3.2 3.58 362.1 10.6 3.97 1.63
CHS 40x3.2 mm 48.6 42.2 2.3 3.3 402.9 11.8 4.36 1.62
CHS 50x2.3 mm 60.5 55.9 3.2 4.52 456.4 17.8 4.86 1.61
CHS 50x3.2 mm 60.5 54.1 4.0 5.57 420.5 23.7 5.9 2.06
CHS 50x4.0 mm 60.5 52.5 2.8 5.08 576 28.5 7.84 2.03
CHS 65x2.8 mm 76.3 70.7 3.2 5.77 710 43.7 9.41 2
CHS 65x3.2 mm 76.3 69.9 4.0 7.13 646.5 49.2 11.5 2.6
CHS 65x4.0 mm 76.3 68.3 2.8 5.96 734.9 59.5 12.9 2.59
CHS 80x2.8 mm 89.1 83.5 3.2 6.78 908.5 70.7 15.6 2.58
CHS 80x3.2 mm 89.1 82.7 3.2 7.76 759.1 79.8 15.9 3.05
CHS 90x3.2 mm 101.6 95.2 4.0 9.63 863.6 120 17.9 3.04
CHS 90x4.0 mm 101.6 93.6 5.0 11.9 989.2 146 23.6 3.48
CHS 90x5.0 mm 101.6 91.6 3.2 8.77 1226 177 28.8 3.45
CHS 100x3.2 mm 114.3 107.9 3.5 9.58 1517 172 34.9 3.42
CHS 100x3.5 mm 114.3 107.3 4.5 12.2 1117 187 30.2 3.93
CHS 100x4.5 mm 114.3 105.3 3.6 12.1 1218 234 32.7 3.92
CHS 125x3.6 mm 139.8 132.6 4.0 13.4 1552 357 41 3.89
CHS 125x4.0 mm 139.8 131.8 4.5 15 1540 394 51.1 4.82
CHS 125x4.5 mm 139.8 130.8 6.0 19.8 1707 438 56.3 4.8
CHS 125x6.0 mm 139.8 127.8 4.5 17.8 1913 566 62.7 4.79
CHS 150x4.5 mm 165.2 156.2 2522 734 80.2 4.74
2272 88.9 5.68

139

Section Outside Inside Thickness Weight Cross Geometrical Modulus Radius
diameter diameter moment of of
CHS 175x4.5 mm sectional of inertia
CHS 175x5.3 mm mm mm cm4 section gyration
CHS 175x6.0 mm 190.7 181.7 area 1140 cm3 cm
CHS 175x7.0 mm 190.7 180.1 1330 120 6.59
CHS 175x8.2 mm 190.7 178.7 mm kg/m mm² 1490 139 6.56
CHS 200x4.5 mm 190.7 176.7 1710 156 6.53
CHS 200x5.8 mm 190.7 174.3 4.5 20.7 2632 1690 179 6.5
CHS 200x6.0 mm 216.3 207.3 1680 206 6.46
CHS 200x7.0 mm 216.3 204.7 5.3 24.2 3087 2130 155 7.49
CHS 200x8.0 mm 216.3 204.3 2190 197 7.45
CHS 200x8.2 mm 216.3 202.3 6.0 27.3 3482 2520 203 7.44
CHS 250x6.0 mm 216.3 200.3 2840 233 7.4
CHS 250x6.6 mm 216.3 199.9 7.0 31.7 4040 2910 263 7.37
CHS 250x7.0 mm 267.4 255.4 4210 269 7.36
CHS 250x8.0 mm 267.4 254.2 8.2 36.9 4701 4600 315 9.24
CHS 250x9.0 mm 267.4 253.4 4860 344 9.22
CHS 250x9.3 mm 267.4 251.4 4.5 23.5 2994 5490 363 9.21
CHS 300x6.0 mm 267.4 249.4 6110 411 9.18
CHS 300x6.9 mm 267.4 248.8 5.8 30.1 3836 6290 457 9.14
CHS 300x8.0 mm 318.5 306.5 7190 470 9.13
CHS 300x9.0 mm 318.5 304.7 6.0 31.1 3964 8200 452 11.1
CHS 300x10.3 mm 318.5 302.5 9410 515 11
CHS 350x6.4 mm 318.5 300.5 7.0 36.1 4603 10500 591 11
CHS 350x7.9 mm 318.5 297.9 11900 659 10.9
CHS 350x9.0 mm 355.6 342.8 8.0 41.1 5235 10700 744 10.9
CHS 350x9.5 mm 355.6 339.8 13000 602 12.3
CHS 350x12.0 mm 355.6 337.6 8.2 42.1 5361 14700 734 12.3
CHS 350x12.7 mm 355.6 336.6 15500 828 12.3
CHS 400x7.9 mm 355.6 331.6 6.0 38.7 4927 19100 871 12.2
CHS 400x9.0 mm 355.6 330.2 20100 1080 12.2
CHS 400x9.5 mm 406.4 390.6 6.6 42.4 5408 19600 1130 12.1
CHS 400x12.0 mm 406.4 388.4 22200 967 14.1
CHS 400x12.7 mm 406.4 387.4 7.0 45 5726 23300 1090 14.1
406.4 382.4 28900 1150 14
406.4 381 8.0 51.2 6519 30500 1420 14
1500 13.9
9.0 57.3 7306

9.3 59.2 7541

6.0 46.2 5891

6.9 53 6755

8.0 61.3 7804

9.0 68.7 8751

10.3 78.3 9973

6.4 55.1 7021

7.9 67.7 8629

9.0 76.9 9800

9.5 81.1 10330

12.0 102 12950

12.7 107 13680

7.9 77.6 9890

9.0 88.2 11240

9.5 93 11850

12.0 117 14870

12.7 123 15710

140

ตารางคณุ สมบตั ิเหลก็ หนาตัดทอ สเ่ี หลย่ี มผืนผา มาตรฐาน JIS G3466

Section b h Thickness Weight Cross Geometrical Modulus Radius of
sectional moment of of
RHS 60x30x1.6 mm
RHS 60x30x2.3 mm area of inertia section gyration
RHS 60x30x3.2 mm cm4 cm3 cm
RHS 75x45x1.6 mm
RHS 75x45x2.3 mm mm mm mm kg/m mm2 Ix Iy Zx Zy rx ry
RHS 75x45x3.2 mm
RHS 100x50x1.6 mm 30 60 1.6 2.13 271 12.5 4.25 4.16 2.83 2.15 1.25
RHS 100x50x2.3 mm
RHS 100x50x3.2 mm 30 60 2.3 2.98 379 16.8 5.65 5.61 3.76 2.11 1.22
RHS 100x50x4.5 mm
RHS 125x75x2.3 mm 30 60 3.2 3.99 509 21.4 7.08 7.15 4.72 2.05 1.18
RHS 125x75x3.2 mm
RHS 125x75x4.0 mm 45 75 1.6 2.88 367 28.4 12.9 7.56 5.75 2.78 1.88
RHS 125x75x4.5 mm
RHS 125x75x6.0 mm 45 75 2.3 4.06 517 38.9 17.6 10.4 7.82 2.74 1.84
RHS 150x75x3.2 mm
RHS 150x80x4.5 mm 45 75 3.2 5.5 701 50.8 22.8 13.5 10.1 2.69 1.8
RHS 150x80x5.0 mm
RHS 150x80x6.0 mm 50 100 1.6 3.64 463 61.3 21.1 12.3 8343 2.64 2.13
RHS 150x100x3.2 mm
RHS 150x100x4.5 mm 50 100 2.3 5.14 655 84.8 29 17 11.6 3.6 2.1
RHS 150x100x6.0 mm
RHS 150x100x9.0 mm 50 100 3.2 7.01 893 112 38 22.5 15.2 3.55 2.06
RHS 200x100x4.5 mm
RHS 200x100x6.0 mm 50 100 4.5 9.55 1210 147 48.9 29.3 19.5 3.47 2
RHS 200x100x9.0 mm
RHS 200x150x4.5 mm 75 125 2.3 6.95 885 192 87.5 30.6 23.3 4.65 3.14

75 125 3.2 9.52 1210 257 117 41.1 31.1 4.6 3.1

75 125 4 11.7 1490 311 141 49.7 37.5 4.56 3.07

75 125 4.5 13.1 1660 342 155 54.8 41.2 4.53 3.04

75 125 6 17 2160 428 192 68.5 51.1 4.45 2.98

75 150 3.2 10.8 1370 402 137 53.6 36.6 5.41 3.16

80 150 4.5 15.2 1940 563 211 75 52.9 5.39 3.3

80 150 5 16.8 2140 614 230 81.9 57.5 5.36 3.28

80 150 6 19.8 2520 710 264 94.7 66.1 5.31 3.24

100 150 3.2 12 1530 488 262 65.1 52.5 5.64 4.14

100 150 4.5 16.6 2120 658 352 87.7 70.4 5.58 4.08

100 150 6 21.7 2760 835 444 111 88.8 5.5 4.014

100 150 9 31.1 3970 1130 595 151 119 5.33 3.87

100 200 4.5 20.1 2570 1330 455 131 90.9 7.2 4.21

100 200 6 26.4 3360 1700 577 170 115 7.12 4.14

100 200 9 38.2 4870 2350 782 235 156 6.94 4.01

150 200 4.5 23.7 3020 1760 1130 176 151 7.64 6.13

141

Section b h Thickness Weight Cross Geometrical Modulus Radius of
of of
RHS 200x150x6.0 mm sectional moment
RHS 200x150x9.0 mm section gyration
RHS 250x150x6.0 mm area of inertia (cm3) (cm)
RHS 250x150x9.0 mm (cm4)
RHS 250x150x12.0 mm Zx Zy rx ry
RHS 300x200x6.0 mm mm mm mm kg/m mm2 Ix Iy
RHS 300x200x9.0 mm
RHS 300x200x12.0 mm 150 200 6 31.1 3960 2270 1460 227 194 7.56 6.06
RHS 350x150x6.0 mm
RHS 350x150x9.0 mm 150 200 9 45.3 5770 3170 2020 317 270 7.41 5.93
RHS 350x150x12.0 mm
RHS 400x200x6.0 mm 150 250 6 35.8 4560 3890 1770 311 236 9.23 6.23
RHS 400x200x9.0 mm
RHS 400x200x12.0 mm 150 250 9 52.3 6670 5480 2470 438 330 9.06 6.09

150 250 12 67.9 8650 6850 3070 548 409 8.9 5.95

200 300 6 45.2 5760 7370 3960 491 396 11.3 8.29

200 300 9 66.5 8470 10500 5630 702 563 11.2 8.16

200 300 12 86.8 11100 13400 7110 890 711 11 8.02

150 350 6 45.2 5760 8910 2390 509 319 12.4 6.44

150 350 9 66.5 8470 12700 3370 726 449 12.3 6.31

150 350 12 86.8 11100 16100 4210 921 562 12.1 6.17

200 400 6 54.7 6960 14800 5090 739 509 14.6 8.55

200 400 9 80.6 10300 21300 7270 1070 727 14.1 8.42

200 400 12 106 13500 27300 9230 1360 923 14.2 8.23

142

ตารางคุณสมบัติเหล็กหนา ตัดทอ สีเ่ หล่ียมจตุรสั มาตรฐาน JIS G3466

Section b h Thickness Weight Cross Geometrical Modulus of Radius of
gyration
SHS 40x40x1.6 mm sectional moment section
SHS 40x40x2.3 mm rx = ry
SHS 50x50x1.6 mm mm mm mm kg/m area of inertia (Ix =Iy) Zx = Zy cm
SHS 50x50x2.3 mm cm2 cm4 cm3 1.56
SHS 50x50x3.2 mm 1.52
SHS 60x60x1.6 mm 40 40 1.6 1.88 239 5.79 2.9 1.96
SHS 60x60x2.3 mm 1.93
SHS 60x60x3.2 mm 40 40 2.3 2.62 333 7.73 3.86 1.89
SHS 75x75x1.6 mm 2.37
SHS 75x75x2.3 mm 50 50 1.6 2.38 303 11.7 4.68 2.34
SHS 75x75x3.2 mm 2.3
SHS 75x75x4.5 mm 50 50 2.3 3.34 425 15.9 6.34 2.99
SHS 80x80x2.3 mm 2.95
SHS 80x80x3.2 mm 50 50 3.2 4.5 572 20.4 8.16 2.91
SHS 80x80x4.5 mm 2.85
SHS 90x90x2.3 mm 60 60 1.6 2.88 367 20.7 6.89 3.16
SHS 90x90x3.2 mm 3.11
SHS 100x100x2.3 mm 60 60 2.3 4.06 517 28.3 9.44 3.05
SHS 100x100x3.2 mm 3.56
SHS 100x100x4.0 mm 60 60 3.2 5.5 700 36.9 12.3 3.52
SHS 100x100x4.5 mm 3.97
SHS 100x100x6.0 mm 75 75 1.6 3.64 463 41.3 11 3.93
SHS 100x100x9.0 mm 3.89
SHS 125x125x3.2 mm 75 75 2.3 5.14 655 57.1 15.25 3.87
SHS 125x125x4.5 mm 3.79
SHS 125x125x5.0 mm 75 75 3.2 7.01 893 75.5 20.1 3.65
SHS 125x125x6.0 mm 4.95
SHS 125x125x9.0 mm 75 75 4.5 9.55 1217 98.6 26.3 4.89
4.86
80 80 2.3 5.5 701 69.9 17.5 4.82
4.67
80 80 3.2 7.51 956 92.7 23.25

80 80 4.5 10.3 1307 122 30.4

90 90 2.3 6.23 793 101 22.4

90 90 3.2 8.51 1085 135 29.9

100 100 2.3 6.95 885 140 27.9

100 100 3.2 9.52 1213 187 37.5

100 100 4 11.7 1495 226 45.3

100 100 4.5 13.1 1667 249 49.9

100 100 6 17 2163 311 62.3

100 100 9 24.1 3067 408 81.6

125 125 3.2 12 1533 376 60.1

125 125 4.5 16.6 2117 506 80.9

125 125 5 18.3 2336 553 88.4

125 125 6 21.7 2763 641 103

125 125 9 31.1 3967 865 138

143

Section b h Thickness Weight Cross Geometrical Modulus of Radius of
gyration
SHS 150x150x9.0 mm sectional moment section
SHS 175x175x4.5 mm rx = ry
SHS 175x175x5.0 mm mm mm mm kg/m area of inertia (Ix =Iy) Zx = Zy cm
SHS 175x175x6.0 mm cm2 cm4 cm3 5.69
SHS 200x200x4.5 mm 6.93
SHS 200x200x6.0 mm 150 150 9 38.2 4867 1580 210 6.91
SHS 200x200x8.0 mm 6.86
SHS 200x200x9.0 mm 175 175 4.5 23.7 3017 1450 166 7.95
SHS 200x200x12.0 mm 7.88
SHS 250x250x5.0 mm 175 175 5 26.2 3336 1590 180 7.78
SHS 250x250x6.0 mm 7.73
SHS 250x250x8.0 mm 175 175 6 31.1 3963 1860 213 7.59
SHS 250x250x9.0 mm 9.97
SHS 250x250x12.0 mm 200 200 4.5 27.2 3467 2190 219 9.92
SHS 300x300x4.5 mm 9.82
SHS 300x300x6.0 mm 200 200 6 35.8 4563 2830 283 9.78
SHS 300x300x9.0 mm 9.63
SHS 300x300x12.0 mm 200 200 8 46.9 5979 3620 362 12
SHS 350x350x9.0 mm 12
SHS 350x350x12.0 mm 200 200 9 52.3 6667 3990 399 11.8
11.7
200 200 12 67.9 8653 4980 498 13.9
13.7
250 250 5 38 4836 4810 384

250 250 6 45.2 5763 5670 454

250 250 8 59.5 7579 7320 585

250 250 9 66.5 8467 8090 647

250 250 12 86.8 11050 10300 820

300 300 4.5 41.3 5267 7630 508

300 300 6 54.7 5963 9960 664

300 300 9 80.6 10270 14300 956

300 300 12 106 13450 18300 1220

350 350 9 94.7 12070 23200 1320

350 350 12 124 15850 29800 1700

144

ตารางคณุ สมบตั ิเหล็กหนาตัดทอกลม มาตรฐาน TIS 107

y

xx

Section y Cross Geometrical Modulus Radius
sectional moment of of
Outside Inside Thickness Weight of inertia
diameter diameter area cm4 section gyration
mm² 0.607 cm3 cm
mm mm mm kg/m 123.8 1.41 0.56 0.7
179.9 2.89 1.03 0.88
CHS 15x2.0 mm 21.7 19.7 2 0.972 229.1 5.97 1.7 1.12
CHS 20x2.3 mm 291.9 8.99 2.8 1.43
CHS 25x2.3 mm 27.2 24.9 2.3 1.41 334.5 11.8 3.7 1.64
CHS 32x2.3 mm 456.4 23.7 4.86 1.61
CHS 40x2.3 mm 34 31.7 2.3 1.8 576 28.5 7.84 2.03
CHS 40x3.2 mm 710 49.2 9.41 2
CHS 50x3.2 mm 42.7 40.4 2.3 2.29 734.9 59.5 12.9 2.59
CHS 50x4.0 mm 908.6 79.8 15.6 2.56
CHS 65x3.2 mm 48.6 46.3 2.3 2.63 863.6 97 17.9 3.04
CHS 65x4.0 mm 1069 120 21.8 3.01
CHS 80x3.2 mm 48.6 45.4 3.2 3.58 989.2 146 23.6 3.48
CHS 80x4.0 mm 1226 172 28.8 3.45
CHS 90x3.2 mm 60.5 57.3 3.2 4.52 1117 234 30.2 3.93
CHS 90x4.0 mm 1552 283 41 3.89
CHS 100x3.2 mm 60.5 56.5 4 5.57 1912 438 49.6 3.85
CHS 100x4.5 mm 1913 566 62.7 4.79
CHS 100x5.6 mm 76.3 73.1 3.2 5.77 2522 734 80.9 4.74
CHS 125x4.5 mm 2272 952 88.9 5.68
CHS 125x6.0 mm 76.3 72.3 4 7.13 3001 2190 115 5.63
CHS 150x4.5 mm 3961 2840 203 7.44
CHS 150x6.0 mm 89.1 85.9 3.2 6.78 5235 263 7.37
CHS 200x6.0 mm
CHS 200x8.0 mm 89.1 85.1 4 8.39

101.6 98.4 3.2 7.76

101.6 97.6 4 9.63

114.3 111.1 3.2 8.77

114.3 109.8 4.5 12.2

114.3 108.7 5.6 15

139.8 135.3 4.5 15

139.8 133.8 6 19.8

165.2 160.7 4.5 17.8

165.2 159.2 6 23.6

216.3 210.3 6 31.1

216.3 208.3 8 41.1

145

ตารางคุณสมบตั ิเหลก็ หนา ตัดทอ ส่ีเหลีย่ มผืนผา มาตรฐาน TIS 107

Section b h Thickness Weight Cross Geometrical Modulus Radius of
sectional moment of of
RHS 50x25x2.3 mm
RHS 50x25x3.2 mm area of inertia section gyration
RHS 60x30x2.3 mm cm4 cm3
RHS 60x30x3.2 mm cm
RHS 75x38x2.3 mm
RHS 75x38x3.2 mm mm mm mm kg/m mm2 Ix Iy Zx Zy rx ry
RHS 75x45x2.3 mm
RHS 75x45x3.2 mm 25 50 2.3 2.44 310.2 9.31 3.1 3.72 2.48 1.73 1
RHS 90x45x2.3 mm 25 50 3.2 3.24 412.7 11.6 3.8 4.65 3.04 1.68 0.96
RHS 90x45x3.2 mm 30 60 2.3 2.98 379.2 16.8 5.65 5.61 3.76 2.11 1.22
RHS 100x50x3.2 mm 30 60 3.2 3.99 508.7 21.4 7.08 7.15 4.72 2.05 1.18
RHS 100x50x4.0 mm 38 75 2.3 3.81 485 34.6 12 9.23 6.3 2.67 1.57
RHS 100x50x4.5 mm 38 75 3.2 5.15 655.9 45 15.4 12 8.09 2.62 1.53
RHS 125x50x3.2 mm 45 75 2.3 4.06 517.2 38.9 17.6 10.4 7.82 2.74 1.84
RHS 125x50x4.0 mm 45 75 3.2 5.5 700.7 50.8 22.8 13.5 10.1 2.69 1.8
RHS 125x50x4.5 mm 45 90 2.3 4.6 586.2 61 20.8 13.6 9.22 3.23 1.88
RHS 125x75x3.2 mm 45 90 3.2 6.25 796.7 80.2 27 17.8 12 3.17 1.84
RHS 125x75x4.0 mm 50 100 3.2 7.01 892.7 112 38 22.5 15.2 3.55 2.06
RHS 125x75x4.5 mm 50 100 4 8.59 1095 142 46.7 28.4 18.7 3.55 2.03
RHS 150x80x4.5 mm 50 100 4.5 9.55 1217 147 48.9 29.3 19.5 3.47 2
RHS 150x80x6.0 mm 50 125 3.2 8.26 1053 198 46.7 31.6 18.7 4.33 2.11
RHS 150x100x4.5 mm 50 125 4 10.2 1295 238 55.6 38 22 4.28 2.07
RHS 150x100x6.0 mm 50 125 4.5 11.3 1442 261 60.6 41.7 24.2 4.25 2.05
RHS 200x100x4.5 mm 75 125 3.2 9.52 1213 257 117 41.1 31.1 4.6 3.1
RHS 200x100x6.0 mm 75 125 4 11.7 1495 311 141 49.7 37.5 4.56 3.07
75 125 4.5 13.1 1667 342 155 54.8 41.2 4.53 3.04
80 150 4.5 15.2 1937 563 211 75 52.9 5.39 3.3
80 150 6 19.8 2523 710 264 94.7 66.1 5.31 3.24
100 150 4.5 16.6 2117 658 352 87.7 70.4 5.58 4.08
100 150 6 21.7 2763 835 444 111 88.8 5.5 4.01
100 200 4.5 20.1 2567 1330 455 133 90.9 7.2 4.21
100 200 6 26.4 3363 1700 577 170 115 7.12 4.14

146

ตารางคณุ สมบัติเหลก็ หนาตัดทอ สเี่ หลีย่ มจตุรสั มาตรฐาน TIS 107

Section b h Thickness Weight Cross Geometrical Modulus of Radius of

SHS 25x25x2.0 mm sectional moment section gyration
SHS 25x25x2.3 mm
SHS 32x32x2.3 mm mm mm mm kg/m area of inertia (Ix =Iy) Zx = Zy rx = ry
SHS 32x32x3.2 mm cm2 cm4 cm3 cm
SHS 38x38x2.3 mm
SHS 38x38x3.2 mm 25 25 2 1.36 173.7 1.48 1.19 0.924
SHS 50x50x2.3 mm 25 25 2.3 1.53 173.7 1.61 1.29 0.904
SHS 50x50x3.2 mm 32 32 2.3 2.04 259.6 3.71 2.32
SHS 60x60x3.2 mm 32 32 3.2 2.69 342.3 4.54 2.84 1.2
SHS 60x60x3.2 mm 38 38 2.3 2.47 314.8 6.54 3.44 1.15
SHS 60x60x4.0 mm 38 38 3.2 3.29 419.1 8.18 4.3 1.44
SHS 75x75x3.2 mm 50 50 2.3 3.34 425.2 15.9 6.34 1.4
SHS 75x75x4.0 mm 50 50 3.2 4.5 572.7 20.4 8.16 1.93
SHS 90x90x3.2 mm 60 60 2.3 4.06 517.2 28.3 9.44 1.86
SHS 90x90x4.0 mm 60 60 3.2 5.5 700.7 36.9 12.3 2.34
SHS 90x90x4.5 mm 60 60 4 6.71 854.8 43.6 14.5 2.3
SHS 100x100x3.2 mm 75 75 3.2 7.01 892.7 75.5 20.1 2.26
SHS 100x100x4.0 mm 75 75 4 8.59 1094.8 90.2 24.1 2.91
SHS 100x100x4.5 mm 90 90 3.2 8.51 1085 135 29.9 2.87
SHS 150x150x4.5 mm 90 90 4 10.48 1335 162 36 3.52
SHS 150x150x6.0 mm 90 90 4.5 11.67 1487 178 39.5 3.48
SHS 175x175x4.5 mm 100 100 3.2 9.52 1213 187 37.5 3.46
SHS 175x175x6.0 mm 100 100 4 11.7 1495 226 45.3 3.93
SHS 200x200x6.0 mm 100 100 4.5 13.1 1667 249 49.9 3.89
SHS 200x200x8.0 mm 150 150 4.5 20.1 2567 896 120 3.87
SHS 200x200x9.0 mm 150 150 6 26.4 3363 1150 153 5.91
SHS 250x250x6.0 mm 175 175 4.5 23.7 3017 1450 166 5.84
175 175 6 31.1 3963 1860 213 6.93
200 200 6 35.8 4563 2830 283 6.86
200 200 8 46.9 5979 3620 362 7.88
200 200 9 52.3 6667 3990 399 7.78
250 250 6 45.2 5763 5670 454 7.73
9.92

147

Section b h Thickness Weight Cross Geometrical Modulus of Radius of

sectional moment section gyration

mm mm mm kg/m area of inertia (Ix =Iy) Zx = Zy rx = ry
cm2 cm4 cm3 cm

SHS 300x300x9.0 mm 300 300 9 80.6 10270 14300 956 11.8
12 106 13450 18300 1220 11.7
SHS 300x300x12.0 mm 300 300 9 94.7 12070 23200 1320 13.9
12 124 15850 29800 1700 13.7
SHS 350x350x9.0 mm 350 350

SHS 350x350x12.0 mm 350 350



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กราฟชว ยออกแบบจดุ ตอ โครงสรางเหลก็ ประเภททอ กลม

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