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1、INTERNATIONAL STANDARD IS0 6934-5 First edition 1991-12-15 Steel for the prestressing of concrete - Part 5: Hot-rolled steel bars with or without subsequent processing Acier pour armatures de prkonfrainfe - Parfie 5: Barres en acier lamin6es 4 chaud avec ou sans transformation ulfbrieure Reference n
2、umber IS0 6934-5: 199 1 (E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 04:18:02 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6934-5:1991(E)
3、Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a t
4、echnical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matte
5、rs of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 6934
6、-5 was prepared by Technical Committee ISO/TC 17, Steel, Sub-Committee SC 16, Steels for the reinforcement and prestressing of concrete. IS0 6934 consists of the following parts, under the general title Steel for the prestressing of concrete: - Part 1: General requirements - Part 2: Co/d-drawn wire
7、- Part 3: Quenched and tempered wire - Part 4: Strand - Part 5: Hot-rolled steel bars with or without subsequent processing 0 is0 1991 All rights reserved. No part of this publlcatlon may be reproduced or utilized In any form or by any means, electronic or mechanical, lncludlng photocopying and micr
8、ofilm, wlthout permission in writing from the publlsher. International Organization for Standardization Case Postale 56 l CH-1211 Ge characteristic value specified in table 1. a, is the area of the longitudinal section of one rib; 6.2 Elongation and ductibllity B is the rib inclination, relative to
9、the axis The characteristic percentage total elongation at of the bar; maximum force, A, shall be not less than 3,5 %. d If agreed between the purchaser and manufacturer, “Ofll is the nominal diameter of the bar; the bars shall withstand a bend test according to C is the rib spacing. IS0 10065 witho
10、ut fractures or cracks visible to the unaided eye. The mandrel diameter and angle of bend is subject to agreement between the purchaser and manufac- turer. 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001
11、 Not for Resale, 04/27/2007 04:18:02 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6934-5:1991 (E) Table 1 - Dlmenslons. mass and tensile properties of hot-rolled bars 1 length Permissible deviation % Charal maximum force kN !ristic 0,l % proof force kN 185 145 235 19
12、0 325 260 430 340 545 445 830 670 1 050 850 1 295 1050 190 165 245 210 340 290 450 385 575 495 870 750 1 100 945 1 360 1 170 210 165 270 210 370 290 490 385 625 495 950 750 1 200 945 1 485 1 170 215 190 280 245 385 340 510 450 655 575 990 870 1 250 1 100 1 545 1 360 Nominal diameter Nominal tensile
13、strength ) N/mm* Nominal 0,l % proof stress*) N/mm* Nominal cross-sectional area*) mm* Mass p Reference mm * 15 176,7 17 227,0 20 314,o 23 26 1030 835 415,5 530,9 32 804,2 36 1 018,O 40 1 257,0 kg/m I,39 I,78 2,47 3,26 4,17 6,31 7,99 9,86 15 176,7 I,39 17 227,0 1,78 20 314,o 2,47 23 415,5 3,26 26 1
14、080 930 530,9 4,17 32 804,2 6,31 36 1 018,O 7,99 40 1 257,O 9,86 15 176,7 17 227,0 20 314,o 23 26 1 180 930 415,5 530,9 32 804,2 36 1 018,O 40 1 257,0 I,39 1,78 2,47 3,26 4,17 6,31 7,99 9,86 15 176,7 I,39 17 227,0 1,78 20 314,0 2-47 23 26 1 230 1 080 4155 3,26 530,9 4,17 32 804,2 6,31 36 1 018,O 7,9
15、9 40 1 257,0 9,86 1) The nominal tensile strength is for designation purposes only. +4 -* t4 -4 +4 -4 t4 -4 2) The nominal 0,l % proof strength and nominal cross-sectional area are for information only. 6.3 Relaxation cles of stress fluctuating down from a maximum stress of 70 % of the nominal t$nsi
16、ie strength. The stress range shall be 245 N/mm for plain bars, and 195 N/mm for ribbed bars. The relaxation at 1 000 h at an initial force of 70 % of the characteristic maximum force specified in ta- ble 1 shall be not more than 4,0 % for all bars. If requested by the purchaser, the relaxation at 6
17、0 % and 80 % of the characteristic maximum force specified in table I shall be provided. The maximum relaxation values shall then be I,5 % and 6,0 % re- spectively. 7 Designation The bars shall be ordered in accordance with IS0 6934-1, and be designated as follows: a) IS0 6934-5; 6.4 Fatigue b) the
18、word “bar”; If agreed between the purchaser and manufacturer, the bars shall withstand, without failure, 2 x IO6 cy- c) nominal diameter, in millimetres; 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 N
19、ot for Resale, 04/27/2007 04:18:02 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6934-5:1991(E) d) nominal tensile strength, in newtons per square millimetre; 8 Delivery conditions e) letter referring to bar surface (see IS0 6934-l): P: Plain Delivery conditions shall
20、 be in accordance with IS0 6934-l and, in addition, the manufacturer shall provide adequate protection against damage to threaded ends. R: Ribbed. The bar may be covered with a layer of scale. EXAMPLE Ribbed bar with nominal diameter 32 mm and nom- inal tensile strength 1 230 N/mm* is designated: IS
21、0 6934-5 - bar - 32 - 1 230 - R 4 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 04:18:02 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 6934-5:19
22、91(E) UDC 669.14122-422.11:691.714:691.328 Descriptors: concrete, prestressed concrete, steels, prestressing steels, high yield strength steels, steel products, round bars, specifications, dimensions, designation, delivery condition. Price based on 4 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 04:18:02 MDTNo reproduction or networking permitted without license from IHS -,-,-