《斜拉桥用热挤聚乙烯高强钢丝拉索》

13.1.13.1.23.1.33.1.43.1.53.1.63.1.73防火材料fireresistivematerial）；）；）；）；）；）；4.1.1拉索按钢丝表面镀层材料分为：4.1.3拉索按钢丝直径分为：4.2.1成品拉索4.2.2索体1——高强钢丝；2——高强聚酯纤维带；5——4.2.3锚具54——锚圈；8——下连接筒；12——聚乙烯热收缩套；16——密封橡胶；4.3.1拉索的编码和参数应满足65.1.1拉索外观表面良好完整，5.1.2拉索护套外径允许公差为-1.0mm～25.1.4拉索长度允许误差应符合以下要求：5.2.1钢丝拉索采用热镀锌钢丝、锌铝合金镀层钢丝或锌铝镁合金镀层钢丝。宜优先采用直径为Φ7mm12345%6%7789注1：破断力按钢丝公称截面积确定其荷载12345%6%78985.2.2高密度聚乙烯护套索体防护用高密度聚乙烯护套料主要性能不应低于表4的要求，且有厂家提12345%67<10008<100099h℃<-76h%%级-级-—-护套外观应无破损，厚度均匀。拉索护套不应有深于1mm的划痕，外表面不应有面积大于护套厚度允许偏差应符合表5的规定。>105.2.3锚具锚具型号应与拉索型号相匹配。锚具应符合以下要求：5.2.4冷铸填料冷铸填料由环氧树脂、固化剂、稀释剂、增韧剂、填充料等锚具锚固填料的试件强度在常温下不应小于15.2.5聚乙烯热收缩套聚乙烯热收缩套边缘应平直，5.2.6高强聚酯纤维带高强聚酯纤维带采用纤维增强的聚酯压敏胶带或双层聚酯带内夹纤维丝的增强复合带，带宽N%5.2.7拉索附属件拉索附属件包括斜拉5.3.1弹性模量5.3.2静载性能ξ%%5.3.3疲劳性能拉索经疲劳性能试验后，护套不应有损伤。热挤聚乙烯高强钢丝拉索轴向疲劳性能应符合表8的规定。次%0.45fptk热挤聚乙烯高强钢丝拉索弯曲疲劳性能应符合表9的规定。次%0.45fptk5.3.4水密性5.4.1扭绞5.4.2缠包5.4.3挤塑5.4.4下料5.4.5墩头5.4.6灌锚在已下料的拉索两端，5.4.7超张拉6.1.1外观6.1.2拉索直径6.1.3拉索长度），）；）；6.2.1钢丝1直径、不圆度、截面234567896.2.3锚具123NB/T47013.4—201545676.2.4冷铸填料6.2.5高强聚酯纤维带高强聚酯纤维带宽度和厚度尺寸用卡尺和千分尺进行测量。6.3.1弹性模量ΔLPA）；）；）；）；6.3.2静载性能静载试验用拉索的钢丝自由长度不应小于3.5m。试验方法如下：6.3.3疲劳性能拉索轴向疲劳试验方法如下：拉索弯曲疲劳试验方法如下：6.3.4水密性静态水密性试验应符合附录G的要求。动态水密性试验应符合附录H的要求。6.3.5耐火性能6.4.1墩头6.4.2超张拉超张拉力取1.2～1.4倍设计索力。即设计索力不大于3000kN时取1.4倍；设计索力大于超张拉至最大荷载时，持荷5min再卸载。再次测量测点距基准面的垂直距离，3个测点前后两次之差的平均值作为锚具分丝板的内缩7.1.1成品拉索检验包括型式检验和出7.1.2有下列情况之一时，应进行型式检序号1++2++3++4++5+-6++7+-8+-9+-+-注：“+”为检验，“-”为不检验。（规范性）拉索主要技术参数钢丝直径为7mm的拉索主要技术参数应符合表A.1的规定，钢丝直径为5mm的拉索主要技术参数应符合表A.2的规定。规格钢丝束公称截面积cm钢丝束单位重kg/m护套层厚拉索单位重kg/m钢丝抗拉强度（f）MPa内层mm外层mm拉索外径mm167017701860196020002060210021602200公称破断索力（P）kNPES7-5521.1716.6437218.3353537473938414942344361444545734657PES7-6123.4818.4437720.5392041564367460246964837493050725166PES7-7328.0922438224.2469249725225550656185787590060676180PES7-8532.7125.6538728546357906084641165426738686970657196PES7-9135.0227.4539330.4584861996514686470047214735475647704PES7-10941.9532.8539735.7700574257803822283908642880990619229PES7-12146.5736.46310339.777778243866291289314959397791005910245PES7-12748.8838.26310942.28162865290929580977610069102641055810754PES7-13953.4941.86311145.7893394689949104841069811019112341155411768PES7-15158.1145.56311349.297051028510808113901162211971122031255212784PES7-16362.7349.17412053.6104761110311668122951254612922131731355013801PES7-18771.9756.37412761.2120181273913386141061439414826151131554615833规格钢丝束公称截面积cm钢丝束单位重kg/m护套层厚拉索外径mm拉索单位重kg/m钢丝抗拉强度（f）MPa内层mm外层mm167017701860196020002060210021602200公称破断索力（P）kNPES7-19976.5859.97413064.9127901355514244150101531615775160831654116848PES7-21181.263.57413569135611437215103159151624016727170521753917864PES7-22385.8267.17413973143321519015963168211716417679180221853718880PES7-24192.7572.57414178.1154891641717252181791855019107194772003420405PES7-25397.3776.28414582.1162601723418111190851947420058204472103221421PES7-265101.9879.88415086.3170311805018968199882039621008214172202822436PES7-283108.9185.28415391.8181881927720257213462178222435228712352523960PES7-301115.8490.68415797.4193452050421546227052316823863243262502125485PES7-313120.4694.284160101.3201162132122406236102409224815252962601926501PES7-337129.69101.494166109216592295524122254192593826716272352801328532PES7-349134.3110594168112.7224302377324982263252686227668282052901129548PES7-367141.24110.594173118.6235872499926271276832824829095296603050831073PES7-379145.86114.15178123.1243582581727130285892917230047306303150632089PES7-409157.4123.15184132.6262862786029276308503148032424330543399834628PES7-421162.02126.75185136270572867830136317563240433376340243499635644PES7-439168.95132.15191142.4282142990431425331143379034804354793649337169PES7-451173.57135.85193146.2289853072232284340203471435755364493749138185PES7-475182.81435198153.9305283235634001358293656037657383883948540216PES7-499192.04150.26201159.832071339913571937640384083956040328414814224920表A.1拉索主要技术参数(Φ7mm，σb=1670MPa、1770MPa、1860MPa、1960MPa、2000MPa、2060MPa、2100MPa、2160MPa、2200MPa续）钢丝抗拉强度（钢丝抗拉强度（f）MPa钢丝束单196020002060规格公称破断索力（P）mmkN3933042102448724579649952钢丝束公称截面积cm196.65210.51224.36228.98249.76拉索单位重kg/m164.1175.2186.2190.3206.8PES7-511PES7-547PES7-583PES7-595PES7-649拉索外径mm206211216220226位重kg/m153.8164.6175.4179.1195.3内层mm3480737260397124052944208412974420747116480865245040510433654621847170514514247645470484624946053948328413515537468382404171036577391554173142590464553854341260439754488048953432634631249359503765494767777护套层厚220021602100外层18601770167021规格钢丝束公称截面积cm钢丝束单位重kg/m护套层厚拉索外径mm拉索单位重kg/m钢丝抗拉强度（f）MPa内层mm外层mm167017701860196020002060210021602200公称破断索力（P）kNPES5-5510.88.543559.6180419122009211721602225226823332376PES5-6111.989.4435910.8200121202228234823962468251525882636PES5-7314.3311.3436312.8239325362665280928662952301030953153PES5-8516.6913.1436514.6278729543104327133383438350536053672PES5-9117.87436915.8298431633324350335743681375238603931PES5-10921.416.8437218.5357437883980419442804408449446224708PES5-12123.7618.7437520.4396842064419465747524895498951325227PES5-12724.9419.6437921.7416544144639488849885138523753875487PES5-13927.2921.4538223.7455748305076534954585622573158956004PES5-15129.6523.3538325.4495252485515581159306108622664046523长度mm纹度---ε)499根钢丝双层断面1——钢丝；2——高强聚酯纤维带；5——3——黑色高密度聚乙烯护套；6——抗1——保护罩外腔；2——防火材料；4——保护1——锚具；