标准规范下载简介：

内容预览由机器从pdf转换为word，准确率92%以上，供参考

YBT 4543-2016 英文版.pdf

7.3Appearance

7.3.1The surface of the steel strand in the cable shall be clean and tidy, shall not naveloose,rust and other defects, its color is allowed to changeafter being exposed inair. 7.3.2The surface of anchors shall not have defects of cracks,trimmings,indentations, scratches,andshrinkagecavities,etc. 7.3.3Innatural state, the cable shall not show spiral curl. 7.4Mechanicalproperties 7.4.1Over tensioning When a hot cast cable is finished, the over tensioning test shall be carried out at 1.25 times the designed tension value (not less than 45%of the minimumbreaking tensile force calculated).After thetensioning,the relativeoutward displacement(seefigure1)between steel strandand anchor nents of table 2

Table2outwarddisplacement

QCPZYJ 0006-2015 北京正元聚鑫保健食品科技开发有限公司 食用菌固体饮料7.4.2 Static loading

7.4.2 Static loading

Fch, min= AXR,XK,/1000. F...= A.XR,XK, XK./1000.

In theformula

Fch, min= AXR,XK,/1000. F...= A.XR.XK,XK,/1000.

Feh,sin—The theoretical minimum breaking tensile force of the hot cast cable (kN); Fe.sin—The theoretical minimum breaking tensile force of the swaged cable(kN); ANominal cross section of the steel strand (mm); R,—Nominal tensile strength of the steel wire(MPa); K,Strength reduction coefficient of the steel strand, the K1 vales are indicated in K,Strength reduction coefficient of the pressing.its value is 0.9

YB/T45432016

the theoretical minimum breaking tensile force

Strength reduction coefficient of the steel stra

7.4.3 Fatigue prope

7.4.3Fatigue property

8.1Appearance

8.3Mechanical property

8.3.1 0ver stretching

8.3.1.1 Using a hydraulic equipment to load, the precision of the hydraulic sensor shal not belower than1.5grade. 8.3.1.2The loading precisionof theequipment for over stretchingmust bekept withir ±o.2% in themeasurement range.

YB/T 45432016

8.3.2Staticloading

.3.Z.11hesampies directly on finished steel strand,

Inspectionrule

9.1Inspection classificatior

The cable inspection includes type inspection and delivery inspection 9.2Delivery inspection

9.2 Delivery inspectior

9.2.1Inspection item

YB/T45432016

YB/T45432016

9.2. 2 Lot grouping and sampling

Thesamecableproductsproduced withthesamebatchofrawmaterials,thesame specification,and the same process forthe production is a batch. Every cable product shall be subjected todeliveryinspection

9. 2. 3 Decision rule

For all delivery inspection items, if any item is notpassed the inspection, thecable isjudged to beunqualified

9.3 Type inspectior

a)Finalizing and appraising the new or old products transferred to other factory b)After finalizing formally, when there are major changes in the structure, materials and process,etc. c)After formal production, a test shall be carried out per three years. d)when construction resumes after suspending production for half a year or more. e)when there is bigger difference between delivery inspection result and last type inspection result. f)whenthe contract requires inspection.

9.3.1 Inspection items

For the delivery inspection items of cables, see table 6

Table 6the delivery inspection items of cabl

YB/T45432016

YB/T45432016

9. 3.2 Decision rule

For all typeinspection items,if anytest result is unqualified,the type inspection is judged to beunqualified. 10 Mark, quality fi le, Package. transformation and storage

For all type inspectionitems,if anytest result isunqualified,thetype iudged to be unqualified.

YB/T4543—2016AAAnnex A(informative)Cablepre tensioning methodA. 1Methods oneThe cable is tensioned repeatedly five times ranging from 40% to 60% of the theoreticalminimumbreaking force, and then keep for 10minutes (seefigure A.1).t=10min60%40%0t/minFigure A.1 repeated tension curveA.2Methods twoThe cable is tensioned continuously at 50%to 55% of the theoretical minimumbreaking force,for100 minutes (see figure A.2).kNt=100min50~55%0t/minFigure A.2 continuous tension curve15

YB/T 45432016

Annex B (informative) Cable parameter table

wagedcableparameter

HG/T 4298-2012 多孔搪玻璃片式冷凝器YB/T45432016

YB/T 45432016

Reference document

Reference documeni

GB 2733-2015 食品安全国家标准 鲜、冻动物性水产品YB/T45432016

ngdeqing,Sunjian.Steelstrandused for the cable structure and glass curta lldiscussion on structure mode and material selection. Window and curtain wal nformation.2004(9)