UDC 621.328:628.245 ISBN 974-606-537-8

THAI INDUSTRIAL STANDARD

. 1165 2536

0.6 PRECAST REINFORCED CONCRETE BOX SECTIONS FOR DRAINAGEWITH LESS THAN 0.6 m OF COVER SUBJECTED TOHIGHWAY LOADING

0.6

6 10400

0 2202 3300

110 98 23 2536

. 1165 2536

(2)

92

(3)

15 .. 2511

0.6

ASTM C 850M90 Precast Reinforced Concrete Box Sections for Culverts, Storm Drains,and Sewers with Less Than 0.6 m of Cover Subjected to HighwayLoadings (Metric)

The American Association of State Highway and Transports Officials (AASHTO), Interim Specificationfor Bridges, 1974 editionAASHTO, Standard Specifications or Highway Bridges, Twelfth edition

(5)

1891 ( .. 2536 )

.. 2511

0.6

15 .. 2511 0.6 .

11652536

5 .. 2536

-1-

. 1165-2536

0.6

1.

1.1 0.6

2.

2.1 0.6

AASHTO HS20 0.6

3.

3.1 ( 1)3.1.1 (S) (R) 1

1.00

-2-

. 1165-2536

3.1.2 (Tt, Tb Tw) 1 5

3.1.3 (L) 1 000 10 15

3.1.4 (H) (Tw) 5

8.1

1 ( 3.1 4.2.2)

-3-

. 1165-2536

d

2 ( As 2 As 3 As 4)( 1)

d

3 ( As 2 As 3 As 4)( 1)

-4-

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1 ( 3.1.1 3.1.2 4.2.2.1(2) 4.2.2.2(1))

3.2 2

(S) (R)

Tt Tb Tw As 1 As 2 As 3 As 4 As 7 As 8 As 5 As 6

1 200 1 200 190 150 125 380 910 530 280 380 300 440 380

1 200 200 175 150 490 930 660 300 400 360 440 400

1 500 200 175 150 440 970 720 300 400 360 470 400

1 200 200 175 175 610 970 680 360 400 360 420 400

1 800 1 500 200 175 175 570 1 020 720 360 400 360 440 400

1 800 200 175 175 530 1 080 780 360 400 360 470 400

1 200 200 200 200 700 950 660 400 400 400 400 400

1 500 200 200 200 640 1 020 720 400 420 400 400 400

1 800 200 200 200 590 1 080 780 400 420 400 420 400

2 100 200 200 200 550 1 120 830 400 490 400 440 400

1 200 200 200 200 910 1 080 720 400 400 400 400 400

1 500 200 200 200 830 1 120 800 400 400 400 440 400

2 400 1 800 200 200 200 760 1 190 870 400 530 400 440 400

2 100 200 200 200 720 1 230 950 400 570 470 470 400

2 400 200 200 200 660 1 270 1 020 490 610 550 470 400

2 100

1 500

-5-

. 1165-2536

2 ( 3.2)

L

4.

4.1 4.1.1

1 .15 1 .80

4.1.2 .566

(T) a b c t

1 200 40 45 40 50

1 500 50 45 55 60

1 800 55 65 55 65

2 100 55 85 60 80

2 400 55 85 60 80

-6-

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4.1.3

4.1.3.1 .737

4.1.3.2 .926

4.2 4.2.1

4.2.1.1

4.2.1.2 (vibrator) 4.2.2 ( 1)

4.2.2.1 (1) 0.002

(2) (As 5 As 6)

1(3) 200

4.2.2.2 (1) 1(2) 50 100

(3) 50

(4) 20

30 40 60

(5) 13 50

8.24.2.3

5.2

-7-

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5.

5.1

5.2 8.3 35

6.

6.1 (1) HW (0.6)(2) (S) (R) (3) (4) (5)

6.2

7.

7.1

7.2

7.2.1 7.2.1.1 37.2.1.2 3. 4.2.2 5.1

3

-8-

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3 ( 7.2.1)

7.2.2 7.2.2.1 10 7.2.2.2 1 3

1/3 1/2 2/3 1 1 1 15 3 1/2 2/3 1

7.2.2.3 5.2 1 5.2 80

7.3 7.2.1.2 7.2.2.3

8.

8.1 8.1.1 2 2

8.1.2 2 2

500 2 0

500 8 1

-9-

. 1165-2536

8.1.3 8.1.3.1 (Tt) 2 2

8.1.3.2 (Tb) 2 2

8.1.3.3 (Tw) 2 2

8.1.4 2

8.1.5 2 2 ()

8.2

8.2.1 4 5

8.2.2 4 5

8.2.3 2 4 ( 2 1 )

8.3 .409 150 0.5 300 1 28