ASTM A951 A951M-2016 Standard Specification for Steel Wire for Masonry Joint Reinforcement《砌体接缝加固用钢丝的标准规格》.pdf
《ASTM A951 A951M-2016 Standard Specification for Steel Wire for Masonry Joint Reinforcement《砌体接缝加固用钢丝的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM A951 A951M-2016 Standard Specification for Steel Wire for Masonry Joint Reinforcement《砌体接缝加固用钢丝的标准规格》.pdf(7页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: A951/A951M 14A951/A951M 16Standard Specification forSteel Wire for Masonry Joint Reinforcement1This standard is issued under the fixed designation A951/A951M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of
2、 last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers masonry joint reinforcement fabricated from cold-drawn steel wire. Joint reinforcement con
3、sistsof longitudinal wires welded to cross wires.1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI unitsare shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be
4、usedindependently of the other. Combining values from the two systems may result in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:2A152 Specification for Wrought Iron Rivets and Rivet Rounds (Withdrawn 1972)3A580/A580M Specification for Stainless Steel WireA641/A641M Sp
5、ecification for ZincCoated (Galvanized) Carbon Steel WireA1064/A1064M Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete3. Ordering Information3.1 It shall be the responsibility of the purchaser to specify all requirements that are necessary for the m
6、anufacture and deliveryof the wire under this specification. Such requirements to be considered include, but are not limited to, the following:Orders forwire reinforcement under this Specification shall contain the following information:3.1.1 Quantity (linear feet metres),3.1.2 Type (truss, ladder),
7、3.1.3 Width (nominal thickness of masonry wall),3.1.4 Wire size and wire specification,3.1.5 Finish (see Section 6),3.1.6 Requirements for inspection (see Section 9),3.1.7 Packaging (see Section 12), and3.1.8 ASTM designation number and year of issue.4. Materials and Manufacture4.1 Wire used in the
8、manufacture of masonry joint reinforcement shall be round and shaped and conform to the applicableprovisions of Specifications A580/A580M, Type 304, or A1064/A1064M except as modified herein.4.2 Masonry joint reinforcement shall be assembled by automatic machines or by other suitable mechanical mean
9、s that willassure accurate spacing and alignment of all members of the finished product.4.3 Longitudinal and cross wires shall be securely connected at every intersection by an electric-resistance welding process thatincludes both fusion welding together with applied pressure to join the materials.4
10、.4 Longitudinal wires shall be deformed. One set of two deformations shall occur around the perimeter of the wire at amaximum spacing of 0.7 times the diameter or width of the wire, but not less than eight sets per 1 in. 25 mm of length.1 This specification is under the jurisdiction ofASTM Committee
11、 A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.05on Steel Reinforcement.Current edition approved May 1, 2014Jan. 15, 2016. Published May 2014January 2016. Originally approved in 1996. Last previous edition approved in 20112014 asA951/A951M 11.A9
12、51/A951M 14. DOI: 10.1520/A0951_A0951M-14.10.1520/A0951_A0951M-16.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM web
13、site.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possibl
14、e to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyri
15、ght ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1NOTE 1Wire used for joint reinforcement is knurled to form deformations and as such it does not come under the deformation requirements inSpecification A1064/A1064M.5. Mechanical Requirements5
16、.1 Tensile PropertiesWire used in the fabrication of masonry joint reinforcement shall conform to the requirements of Table1 based on nominal area of the wire.5.2 Tension Tests:5.2.1 Tension tests shall be made on individual wires cut from the finished product and tested either across or between the
17、 welds.No less than 50 % shall be across welds.5.2.2 Tension tests across a weld shall have the welded joint located approximately at the center of the wire being tested.5.2.3 Tensile strength shall be the average of four test values determined by dividing the maximum test load by the specifiednomin
18、al cross-sectional area of the wire.5.3 Reduction of AreaThe ruptured section of the tensile specimen is measured to determine this property. The measurementshall be made only when rupture has occurred at a sufficient distance from the center of the weld to permit an accurate measurementof the fract
19、ured section. Additional testing is permitted when a suitable ruptured section is not obtained from the initial test. Thewire shall meet the minimum reduction of area requirements of Table 1.5.4 Weld Shear StrengthThe weld shear strength in pounds-force shall not be less than 25 000 multiplied by th
20、e specifiednominal area of the larger wire in square inches in Newtons shall not be less than 172 multiplied by the nominal area in squaremillimeters.NOTE 2Since industry practice is to use butt welds in the manufacture of joint reinforcement, the weld shear strength in pounds-force is prescribedas
21、25 000 times the area of the larger wire rather than 35 000 times the area of the larger wire.5.5 Weld Shear Strength Tests:5.5.1 Test specimens shall be obtained from the finished product by cutting a section of longitudinal wire that includes one weld.5.5.2 Weld shear strength tests shall be condu
22、cted using a fixture of such design as to prevent rotation of the cross wire. Thecross wire shall be placed in the anvil of the testing device which is secured in the tensile machine and the load then applied tothe longitudinal wire.5.5.3 Weld shear strength shall be the average test load in pounds
23、Newtons of four test specimens selected at random.5.6 Bend Tests:5.6.1 Test specimens shall be obtained from the fabricated product by cutting a section of longitudinal wire without welds.5.6.2 The test specimens shall be bent at room temperature through 180 around a pin, the diameter of which is eq
24、ual to thenominal diameter of the specified wire. Shaped wires shall be placed on the pin so that the minimum dimension is perpendicularto the axis of the pin.5.6.3 The specimen shall not break nor shall there be visible cracks of the base metal on the outside diameter of the bend.6. Other Requireme
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMA951A951M2016STANDARDSPECIFICATIONFORSTEELWIREFORMASONRYJOINTREINFORCEMENT 接缝 加固 钢丝 标准 规格 PDF
链接地址:http://www.mydoc123.com/p-460072.html