KS B 0839-2006 Methods and acceptance criteria of ultrasonic examination forgas pressure welds of reinforcing deformed bars《检验钢筋混凝土用异形棒钢煤气焊接部分的超声波试验方法及判定基准》.pdf

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1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 11 8 http:/www.kats.go.krKS B 0839 KS B 0839: 2006 (2011 )B 0839: 2006 : ( ) ( ) PFG ( ) : (http:/www.standard.go.kr) : : 1991 11 5 : 2006 11 8 : 2011 12 29 2011-0704 : : ( 02- 509-7274) (http:/www.kats.go.kr). 10 5 , . ICS 77.140.60 KS B 0839: 2006(20

2、11 ) Methods and acceptance criteria of ultrasonic examination for gas pressure welds of reinforcing deformed bars 1. KS D 3504 ( .) . 2. . . KS B 0161 KS B 0534 KS B 0817 KS B 0831 KS B 0896 KS D 0233 KS D 3504 KS D 3560 3. KS D 3504, KS B 0817 KS B 0896 . a) , , ( 1 ) b) , c) d) , e) f) 4. , . 5.

3、5.1 . a) 1 . B 0839: 2006 2 b) 2 . 5.2 3 . 5.3 75 % . 5.4 . 5.4.1 a) 5 . b) 1 1 20 . c) . d) 1 . e) . 1) 2) 3) 5.4.2 a) , . 1) . 2) . 3) , . b) . 1) KS B 0817 . 2) 4 . c) 5.4.1 5.4.2 . 1) . 2) . 6. 6.1 , ( 1 ) . 1 D: B 0839: 2006 3 6.2 . 6.3 , , , , , . 7. 7.1 . a) , . b) . 7.2 , . a) ( 2 ). 50 % ,

4、. 2 b) ( 2 ). 1 dB , . 7.3 24 dB . 8. 8.1 2 ( 3 ). 3 2 ( ) ( ) ( ) ( )B 0839: 2006 4 8.2 , ( 4 ). a) , , 2 D . b) 1.4 D , 2 D . c) 2 D , 2 D . 4 8.3 60 mm/s . 9. . a) 50 % . b) . 10. . a) b) ( ) c) d) e) f) g) h) , i) j) k) ( , , ) ( 2D)( 2D)( 1.4D)B 0839: 2006 5 1 1. 1 . 2. . a) . b) 1 , 2 . c) 5MH

5、z . d) 1 1 dB , 70 dB . e) , . 3. 1 1 . 1 1 1(1) 2(2) (3) (4) 40 ns 80 dB 6 % 2 dB/50 dB 1 dB 2 dB/10 40 dB 6 % (1) 1 KS B 0817 1 . (2) 2 KS B 0534 . (3) . (4) 5 45 . B 0839: 2006 6 2 1. 2 . 2. . a) 2 . b) 5 MHz . c) 2 1 . 2 1 : dB A(1) B(1) C(2) 20 20 24 1 1 20 24 20 1 1 1 (1) A B 40 dB , ( ) . (2)

6、 C OFF ( ) , ON ( ) . d) D19 , . e) . , . f) . , . 3. 2 2 . B 0839: 2006 7 2 2 (3) (4) (5) 10 dB 150 Hz (6)s (6) s D 19 20 18 D 22 21 18 D 25 24 18 D 29 27 27 D 32 29 27 D 35 32 27 D 38 34 27 D 41 36 35 D 51 45 35 1 dB , , 1 dB . 1 dB 1 dB/10 (3) 4 3.1 b) . (4) . (5) 5 45 . (6) 10 20 % . B 0839: 200

7、6 8 3 1. 3 . 2. . 3. 3 1 . . 3 1 (Sr) 5 mm5 mm (51) MHz 10 mm 702 30 dB (122) mm 2 m 5 RB PW R50 KS B 0817 3 . RB PW R50 . RB PW 8 mm Sr=S1 S2 S1: 10 % S2: RB PW 8 mm 50 % 4. , , ( ) ( ) . B 0839: 2006 9 4 1. 4 . 2. , , . 3. 3.1 . a) 5 RB PW . b) . 1) B . 2) “ D41” . 3) 4 1 . 4 1 4) (A) 70 . (B) (B)

8、 . 5) A . 1 dB . , . 6) . 6.1) 10 dB 6.2) 2 3.2 . a) D19 D51 . b) . 1) D19 . 2) D19 7. . 3) D51 . (A) (B)RB PW B 0839: 2006 10 4) D51 , 7. . 5) D19 D51 7.2 b) . 4. . a) b) c) 1) 2) 3) 4) B 0839: 2006 11 5 1. 5 ( RB PW .) . 2. KS D 3560 SB410 . , . 2.1 . a) 2 b) KS D 0233 2 . c) KS B 0831 STB N1 50 %

9、 18 dB . d) ( 3 dB) . e) . 2.2 2.1 50 % . 3. 5 1 . , KS B 0161 6 25S . : mm 1. 0.3 mm 2. 0.3 mm 3. 3 mm 5 1 RBPW 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KSKSKSSKSKS KSKS SKS KSKS SKSKS KSKSKSKorean Agency for Technology and Standards http:/www.kats.go.kr KS B 0839: 2006 Methods and acceptance criteria of ultrasonic examination for gas pressure welds of reinforcing deformed bars ICS 77.140.60

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