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Reinforcing steel codings from 1950

Reinforcing steel codings from 1950

08-03-2017 | A. van Wijngaarden

Reinforcing steel codings from 1950. Translation of old values to Eurocode.

Old standard (GBV / VB / VBC)		NEN-EN 1992-1-1
	Reinforcing steel type	f _yk [N / mm²]	f _yd [N / mm²] (γ _m = 1.15)		Ductility class
		(yield point)	f _yd = f _yk / 1.15 (yield point incl. safety factor)
			Calculation value steel tensile strength based on EC.
GBV 1950	QR22	220	191	^{* 1}	B
	QR24	240	209	^{* 1}	B
	QR30	300	260 (240)^*3	^{* 1}	prob. B
	QR36	360	313 (270)^*3	^{* 1}	prob. B
	QR42	420	365 (300)^*3	^{* 1}	prob. B
	QRn36	360	313 (270)^*3	^{* 1}	prob. <A
	QRn42	420	365 (300)^*3	^{* 1}	prob. <A
	QRn48	480	417 (330)^*3	^{* 1}	<A
	QRn54	540	469 (360)^*3	^{* 1}	<A
GBV 1962	QR22	220	191	^{* 2}	B
	QR24	240	209	^{* 2}	B
	QR32	320	278 (270)^*3	^{* 2}	B
	QR40	400	348 (330)^*3	^{* 2}	B
	QR48	480	417 (390)^*3	^{* 2}	prob. B
	QRn32	320	278 (270)^*3	^{* 2}	prob. <A
	QRn40	400	348 (330)^*3	^{* 2}	prob. <A
	QRn48	480	417 (390)^*3	^{* 2}	<A
VB 74	FeB 220 HW	220	191		B
	FeB 400 HW, HWL	400	348		B
	FeB 500 HW	500	435		prob. B
	FeB 400 HK	400	348		prob. B
	FeB 500 HKN	500	435		<A
VB74 / 84	FeB 220 HW	220	191		B
	FeB 400 HW, HWL	400	348		B
	FeB 500 HW	500	435		prob. B
	FeB 400 HK	400	348		prob. B
	FeB 500 HKN	500	435		A
VBC 1990 / VBC1995	FeB 220 HWL	220	191		B
	FeB 400 HWL, HK	400	348		B
	FeB 500 HWL, HK	500	435		B
	FeB 500 HKN	500	435		A
Eurocode from 2008	B 500 A	500	435 -> Characteristics B500A		A
	B 500 B	500	435 -> Characteristics B500B		B
	B 500 C	500	435 -> Characteristics B500C		C
* 1 For old calculation method allowable tensions see GBV 1950.
* 2 For old calculation method, allowable tensions see GBV 1962 .
*3 These values are derived from the Richtlijn Beoordeling Kunstwerken (RBK) version 1.0 of RWS. A lower value for f_yd was determined on the basis of the tensions permitted in the original standard than would have been derived from f_yk on the basis of NEN-EN 1992-1-1.

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This information has been compiled with the utmost care. If nevertheless any inaccuracies or imperfections occur, Betonstaal.nl accepts no liability for the possible consequneces thereof.

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