管桩采购.doc

管 桩构成部分:水泥 GB175-1999 硅砂粉 JC/T950-2005 骨料 JH-JB （要求比 GB/T14684-2002 和GB/T14685-2002 更为严格的企业标准） 外加剂 GB8076-1997 预应力钢棒 YB/T111-1997 端头板 JC/T947-2205螺旋筋 由符合 GB/T701 盘条冷拔而成 产品特点:结构合理，品种规格齐全，供设计选用范围广。外径有300600的壁厚不一，A型-C型的各类管桩，桩身承载力设计值1250一4800KN。管桩混凝土强度高。它采用了科学配比加掺合料、外加剂离心成型、压蒸养护等先进工艺，可确保混凝土强度等级C80。桩身承载力高，抗弯性能好。它采用了预应力混凝土用钢棒，先张法预应力张拉工艺，有较高的抗裂弯矩与极限弯矩。其桩身承载力比其它桩种高25倍。成桩质量可靠。采用的工业化大生产，有成熟的工艺和完整的质量管理体系支撑，可在生产全过程中有效地控制质量。对地质结构适应性较强。由于其密实耐打，有较强的穿透能力，对持力层起伏变化大的地质条件有较强的适应性。运输吊装方便，桩接驳迅速。成桩长度不受限制，用普通的电焊机即可实现接驳。文明施工，现场整洁，不污染环境，符合环保要求。施工机械化程度高，检测方便，监理强度低。经济效益好。其施工周期短，效率高，回报快，施工现场简单，便于管理，可节约施工费用，单位承载力造价低，综合经济效益好。使用范围 : 按其混凝土强度等级和壁厚分为三种：预应力高强混凝土管桩（即PHC桩）、预应力混凝土管桩（即PC桩）、预应力混凝土薄壁管桩（即PT桩）。一般来说，PHC桩的混凝土强度等级不低于C80，PC桩、PTC桩的混凝土强度等级不低于C60。同时按管桩抗弯性能和管桩混凝土有效预压应力值分为A型、AB型、B型、C型四种型号，而外径厚度则可分十种不同厚度的管桩 (3001200) 。1）预应力高强混凝土管桩（代号PHC）、预应力混凝土管桩（代号PC）适用于工业与民用建筑的低承台桩基础。铁路、公路与桥梁、港口、水利、市政、构筑物等工程的基础设计也可参考使用。2）预应力混凝土薄壁管桩（代号PTC）适用于工业与民用建筑的低承台桩基础。3）PHC桩、PC桩适用于抗震设防烈度不大于7度的地区；若使用于抗震设防烈度较高的地区，则需另行验算。 4）PTC桩适用于抗震设防烈度小于7度的地区, 抗震设防烈度为7度的地区需另行验算；PTC桩不得用于抗震设防烈度大于7度的地区。5）当基础工程的环境、地质条件对管桩有侵蚀性时，应采取有效的技术措施。6）管桩主要考虑承受竖向荷载。 预应力混凝土管桩施工主要有起吊、定位、打桩、接桩等主要步骤。A锤击法用柴油锤或液压锤作业B 静压法 用抱压式液压压桩机或顶压式液压压桩机作业。预应力混凝土管桩PHC选用表管 桩 分 类型号壁厚t(mm)混凝土强度等级管桩长度(m)管桩型号预应力钢筋数量及 直径混凝土有效预压应力Opc (Mpa)抗裂弯矩值Mcr (KN-m)极限弯矩值Muk (KN-m)弯矩设计值M(KN-m)单桩桩身强度竖向承载力设计值RP(KN)理论重量(/m)备注预 应 力 高 强 混 凝 土 管 桩 (PHC)30070C8011A6D7.13.8020.835.926.61100126.58m钩吊AB6D9.05.9326.455.841.310509m钩吊B6D10.78.1532.474.755.3100011m钩吊35080C8012A6D9.04.5035.667.149.71500169.79m钩吊AB6D10.76.234391.868145010m钩吊B7D10.77.1847104.877.6140011m钩吊40090C8013A7D9.04.1050.891.467.71950219.110m钩吊AB7D10.75.6760.3125.693190011m钩吊B9D10.77.1569.6156.5115.9185012m钩吊45090C8013A8D9.04.0166.8120.689.32300254.511m钩吊AB8D10.75.5880165.6122.7225012m钩吊B10D10.76.8691201.8149.5220012m钩吊500100C8015A10D9.04.0891.1166.6123.42850314.211m钩吊AB10D10.75.64109.1229.5170280012m钩吊B14D10.77.70133.4306.9227.3265012m钩吊500120C8015A11D9.03.9496175.4129.93250358.112m钩吊AB11D10.75.46114.6242.3179.53200B15D10.77.28137.5317.42358015A11D9.04.00113.5207.5153.73200353.412m钩吊AB11D10.75.53136285.3211.33150B15D10.77.37163.7272.3275.83000550120C8015A12D9.03.80120217.2160.93700405.312m钩吊AB12D10.75.28143.2299.3221.73600B16D10.76.90169.3286.5286.33500600110C8015A13D9.03.94145.3266.4197.33800423.312m钩吊AB13D10.75.46174.4367.6272.3370014m钩吊B18D10.77.38212487.1360.8360015m钩吊600130C8015A14D9.03.75152.5276.9205.14300480.012m钩吊AB14D10.75.20182.3383.4284420013m钩吊B18D10.76.57210478.6354.5410014m钩吊800120C8015A15D10.74.23313.2598.9443.65800640.015m钩吊AB15D12.65.75375.8807.4598.15700B20D2.67.50449.41035766.75450预应力混凝土管桩PC选用表管 桩 分 类型号壁厚t(mm)混凝土强度等级管桩长度(m)管桩型号预应力钢筋数量及 直径混凝土有效预压应力Opc (Mpa)抗裂弯矩值Mcr (KN-m)极限弯矩值Muk (KN-m)弯矩设计值M(KN-m)单桩桩身强度竖向承载力设计值RP(KN)理论重量(/m)备注预 应 力 混 凝 土 管 桩 (PC)30070C7011A6D7.13.7920.435.926.61100126.58m钩吊AB6D9.05.9326.054.940.79509m钩吊B6D10.78.1432.073.054.190011m钩吊30070C6011A6D7.13.7920.035.426.2850126.58m钩吊AB6D9.05.9225.554.040.08009m钩吊B6D10.78.1331.570.552.270011m钩吊35080C7012A6D9.04.5035.066.649.31300169.79m钩吊AB6D10.76.2242.290.667.1125010m钩吊B7D10.77.1746.2102.976.2120011m钩吊35080C6012A6D9.04.5034.265.948.81100169.79m钩吊AB6D10.76.2141.488.665.6105010m钩吊B7D10.77.2045.6100.074.1100011m钩吊40090C7013A7D9.04.0949.590.366.91700219.110m钩吊AB7D10.75.6659.3123.591.5165011m钩吊B9D10.77.1468.6152.7113.1160012m钩吊40090C6013A7D9.04.0848.389.166.01450219.110m钩吊AB7D10.75.6558.1121.590.0140011m钩吊B9D10.77.1367.4148.6110.1130012m钩吊45090C7013A8D9.04.0265.6120.088.92000254.511m钩吊AB8D10.75.5777.1164.0121.5195012m钩吊B10D10.76.8689.7198.2146.8170012m钩吊45090C6013A8D9.04.0264.0118.587.81700254.511m钩吊AB8D10.75.5777.1161.5119.6165012m钩吊B10D10.76.8588.1193.2143.1155012m钩吊500100C7015A10D9.04.0789.2165.6122.72450314.211m钩吊AB10D10.75.64107.4227.1168.2240012m钩吊B14D10.77.70131.7300.5222.6225012m钩吊500120C6015A11D9.04.0787.2164.6121.92100314.211m钩吊AB11D10.75.63105.3223.4165.5200012m钩吊B15D10.77.68129.6291.3215.8185012m钩吊550100C7015A11D9.04.00111.2205.2152.02750353.412m钩吊AB11D10.75.52133.8281.3208.42700B15D10.77.36161.5366.0271.12600550100C6015A11D9.04.00108.6204.1151.22350353.412m钩吊AB11D10.75.52131.3277.3205.42250B15D10.77.37159.2355.3263.22100600110C7015A13D9.03.93142.3265.5196.73300423.312m钩吊AB13D10.75.45171.5362.9268.8325014m钩吊B18D10.77.37209.2444.1353.4310015m钩吊600110C6015A13D9.03.93139.1262.8194.22800423.312m钩吊AB13D10.75.45168.3356.7264.2270014m钩吊B18D10.77.36206.0464.3343.9255014m钩吊预应力混凝土管桩PTC选用表管 桩 分 类型号壁厚t(mm)混凝土强度等级管桩长度(m)管桩型号预应力钢筋数量及 直径混凝土有效预压应力Opc (Mpa)抗裂弯矩值Mcr (KN-m)极限弯矩值Muk (KN-m)弯矩设计值M(KN-m)单桩桩身强度竖向承载力设计值RP(KN)理论重量(/m)备注预 应 力混 凝 土 薄壁管 桩 (PTC)35060C6011A6D7.13.5226.645.033.3850136.79m钩吊35060C7011A6D7.13.5227.345.233.51000136.79m钩吊35060C6011A6H7.03.5527.345.233.5850136.79m钩吊35060C7011A6H7.03.5528.145.633.81000136.79m钩吊40060C6012A7D7.13.5036.961.345.41000160.210m钩吊40060C7012A7D7.13.5037.862.045.91150160.210m钩吊40060C6012A7H7.03.5337.061.745.71000160.210m钩吊40060C7012A7H7.03.5338.062.546.31150160.210m钩吊40070C6012A8D7.13.5340.368.050.41100181.410m钩吊40070C7012A8D7.13.5441.368.951.01350181.410m钩吊40070C6012A8H7.03.5640.269.051.11100181.410m钩吊40070C7012A8H7.03.5741.369.451.41350181.410m钩吊45060C6012A8D7.13.4948.080.659.71150183.811m钩吊45060C7012A8D7.13.4949.381.060.01350183.811m钩吊45060C6012A8H7.03.5248.381.160.11150183.811m钩吊45060C7012A8H7.03.5249.581.760.51350183.811m钩吊45070C6012A9D7.13.4652.488.365.41300209.011m钩吊45070C7012A9D7.13.4653.789.166.01550209.011m钩吊45070C6012A9H7.03.4852.589.566.31300209.011m钩吊45070C7012A9H7.03.4853.989.966.61550209.011m钩吊50070C6013A10D7.13.4065.9111.482.51450236.411m钩吊50070C7013A10D7.13.4067.7112.283.11750236.411m钩吊50070C6013A10H7.03.4266.3112.183.01450236.411m钩吊50070C7013A10H7.03.4368.0113.183.81750236.411m钩吊50080C6013A7D9.03.4271.6112.590.71650264.011m钩吊50080C7013A7D9.03.4273.4123.591.51950264.011m钩吊50080C6013A7H9.03.5472.8127.094.11650264.011m钩吊50080C7013A7H9.03.5574.7127.194.61950264.011m钩吊55070C6013A8D9.03.8887.7158.1117.11650264.012m钩吊55070C7013A8D9.03.8989.9159.6118.22000264.0