第八章++建筑给排水及采暖工程质量控制.docx

1、第八章+建筑给排水及采暖工程质量控制第八章 建筑给排水及采暖工程质量控制第一节 材料进场验收一、给排水管道（一）管道种类镀锌管、UPVC管，铝塑管、PPR管、铜管、不绣钢管和衬塑钢管。（二）验收标准给水衬塑复合钢管CJT 136-2001塑料衬里复合钢管和管件HG/、bT 2437-2006塑料管道系统用外推法对热塑性塑料管材长期静液压强度的测定GB/T182522000低压流体输送用焊接钢管GB/T3091-2008埋地排水用硬聚氯乙烯(PVC-U)结构壁管道系统GB/T 18477.1-2007钢管的验收、包装、标志和质量证明书GB 21022006（三）监理事宜1.按批查验出厂合格证、检

2、测报告，按制造标准现场抽样检测水管的管径、壁厚及均匀度，并和材料样品对比。2.焊接钢管（SC）及配件外观检查要点：镀锌钢导管镀层覆盖完整、表面无锈斑；管材连接套管及其金属附件内外壁表面光洁、无毛刺、飞边、砂眼、气泡、裂纹变形等缺陷；管材连接套管及其金属附件壁厚均匀，管口边缘平整光滑。3.塑料管及管配件应为同一生产厂家制造。4.焊接钢管（SC）规格见表2-8-1。5.焊接钢管（SC）的通常长度：钢管的通常长度为3-12m；焊接钢管（SC）的定尺长度应在通常长度内，且直缝宽频电阻焊钢管的允许偏差为0，+20mm，螺旋缝埋弧焊钢管的允许偏差为0，+50mm。表2-8-1 焊接钢管（SC）规格公称口径

3、/mm公称外径/mm普通钢管加厚钢管公称壁厚/mm理论重量/（Kg/m）公称壁厚理论重量1017.22.50.912.80.991521.32.81.283.51.542026.92.81.663.52.022533.73.22.414.02.933242.43.53.364.03.794048.33.53.874.54.865060.33.85.294.56.196576.14.07.114.57.958088.94.08.385.010.35100114.34.010.885.013.48125139.74.013.395.518.20150168.34.518.186.024.02表2-

4、8-2 焊接钢管（SC）外径及壁厚允许偏差：公称外径D/mm管体外径允许偏差管道外径允许偏差/mm（距管端100mm范围内）壁厚允许偏差D48.30.5mm1048.3D273.11.0D273.1D5080.75D2.4，0.8D5081.0D或10.0，两者取较小值3.2，0.8表2-8-3镀锌钢管镀锌层的重量系数壁厚/mm0.50.60.81.01.21.41.61.82.02.3系数1.2551.1121.1591.1271.1061.0911.0801.0711.0641.055壁厚/mm2.62.93.23.64.04.55.05.45.66.3系数1.0491.0441.0401

5、.0351.0321.0281.0250.0241.0231.020壁厚/mm7.18.08.8101112.514.21617.520系数1.0181.0161.0141.0131.0121.0101.0091.0081.0091.006二、型钢（一）型钢种类角钢、槽钢、工字钢。（二）验收标准热轧等边角钢尺寸、外形、重量及允许偏差GB9787-1988槽钢允许偏差GB707-88钢产品分类GB-T 15574-1995优质炭素结构钢GB-T 699-1999钢铁产品牌号表示方法GB-T 221-2000热轧工字钢GB T706-1988热轧H型钢和部分T型钢GBT 11263-2005结构用

6、冷弯空心型钢尺寸、外形、重量及允许偏差GB/T 6728-2002冷弯型钢GB/T 6725-2002（三）监理事宜1.按批查验型钢出厂合格证、检测报告，按制造标准现场抽样检测型钢壁厚及均匀度，并和材料样品对比。2.镀锌型钢镀层覆盖完整、表面无锈斑；外壁表面光洁、型钢边角无毛刺、飞边、变形等缺陷。3.热扎工字钢的尺寸（表2-8-4）及质量要求：计算公式：W=0.00785 d h + f（ b d ）表2-8-4 热轧工字钢的尺寸型号尺寸/mm截面面积/cm2理论质量W / （kg/m）高度h腿宽b腰厚d10100684.514.34511.26112.6126745.018.11814.22

7、314140805.521.51616.89016160886.026.13120.51318180946.530.75624.14320a2001007.035.57827.92920b2001029.039.57831.06922a2201107.542.12833.07022b2201129.546.52836.52425a2501168.048.54138.10525b25011810.053.54142.03028a2801228.555.40443.49228b28012410.561.00447.88832a3201309.567.15652.71732b32013211.573

8、.55657.71732c32013413.579.95662.76536a36013610.076.48060.03736b36013812.083.68065.68936c36014014.090.88071.34140a40014210.586.11267.59840b40014412.594.11273.87840c40014614.5102.11280.15845a45015011.5102.14680.42045b45015213.5111.14687.48545c45015415.5120.14694.55050a50015812.0119.30493.65450b5001601

9、4.0129.304101.50450c50016216.0139.304109.35456a56016612.5135.435106.31656b56016814.5146.635115.10856c56017016.5157.835123.90063a63017613.0154.658121.40763b63017815.0167.258131.29863c63018017.0179.858141.189H-高度；B-宽度；t1-腹板厚度；t2-翼缘厚度；r-圆角半径图2-8-1 H型钢截面图表2-8-5 H型钢截面尺寸、截面面积、理论重量类别型号（高度宽度）/（mmmm）截面尺寸/mm截

10、面面积/cm2理论重量/（kg/m）HBt1t2r宽翼缘H型钢HW10010010010068821.5916.91251251251256.59830.0023.6150150150150710839.6531.11751751751757.5111351.4340.42002002002008121363.5349.920020412121371.5356.225025024425211111381.3163.82502509141391.4371.8250255141413103.9381.6300300294302121213106.3383.5300300101513118.4593

11、.0300305151513133.45104.8350350338351131313133.27104.6344348101613144.01113.0344354161613164.65129.3350350121913171.89134.9350357191913196.39154.2400400388402151522178.45140.1394398111822186.81146.6394405181822214.39168.3400400132122218.69171.7400408212122250.69196.8414405182822295.39231.94284072035

12、22360.65283.1458417305022528.55414.9*498432457022770.05604.5*500500492465152022257.95202.5502465152522304.45239.0502470202522329.55258.7中翼缘H型钢HM15010014810069826.3520.720015019415069838.1129.92501752441757111355.4943.63002002942008121371.0555.83502503402509141399.5378.1400300390300101613133.25104.64

13、50300440300111813153.89120.8500300482300111513141.17110.8488300111813159.17124.9550300544300111513147.99116.2550300111813165.99130.3600300582300121713169.21132.8588300122013187.21147.0594302142313217.09170.4窄翼缘H型钢HN100501005057811.859.3125601256068816.6913.1150751507557817.8514.0175901759058822.9018

14、.0200100198994.57822.6917.82001005.58826.6722.925012524812458831.9925.125012569836.9729.03001502981495.581340.832.03001506.591346.7836.7350175346174691352.4541.23501757111362.9141.44001504001508131370.3755.24002003961997111371.4156.14002008131370.3755.24502004461998121382.9765.14502009141395.4374.95

15、002004961999141399.2977.9500200101613112.2588.1506201111913129.31101.555020054619991413103.7981.5550200101613149.26117.2600200596199101513117.7592.4600200111713131.71103.4606201122013149.77117.6650300646299101513152.75119.9650300111713171.21134.4656301122013195.77153.7700300692300132018207.54162.970

16、0300132418231.54181.8750300734299121618182.70143.4742300132018214.04168.0750300132418238.04186.9758303162818184.78223.6800300792300142218239.50188.0800300142618263.50206.8850300834298141918227.46178.6842299152318259.72203.9850300162718292.14229.3858301173118324.72254.9900300890299152318266.92209.590

17、0300162818305.82240.1912302183418360.06282.61000300970297162118276.00276.7980298172618315.50247.7990298173118345.30271.11000300193618395.10310.21008302214018439.26344.8薄壁H型钢HT1005095483.24.587.626.0974945.589.387.410010096994.56816.2112.712560118583.24.589.267.31205945.5811.408.91251251191234.56820.

18、1215.815075145733.24.5811.479.01477445.5814.1311.1150100139973.24.5813.4410.5142994.56818.2814.315015014414857827.7721.814714968.5833.6826.417590168883.24.5813.5610.61718946817.5913.8175175167173571333.3226.21721756.59.51344.6535.0200100193983.24.5815.2612.01969946819.7915.52001501881494.56826.3520.

19、7200200192198681343.6934.32501252441244.56825.8720.32501752381734.581339.1230.73001502941484.561331.9025.0300200286198681349.3338.73501753401734.561336.9729.0400150390148681347.5737.3400200390198681355.5743.6注1：同一型号的产品，其内侧尺寸高度一致。 注3：“*”所示规格表示国内暂不能生产。注2：截面面积计算公式为：“t1（H2t2）2Bt20.858r2”。表2-8-6 H型钢尺寸、外形

20、允许偏差项目允许偏差图示高度H（按型号）4002.04006003.06004.0宽度B（按型号）1002.01002002.52003.0厚度t150.55160.716251.025401.5402.0t250.75161.016251.525401.7402.0长度7m60，07m长度每增加1m或不足1m时，正偏差在上述基础上加5mm4.热轧等边角钢的尺寸及质量要求：图2-8-2 热轧等边角钢符号意义：b 边宽度；d边厚度；r 内圆弧半径；rr 边端内圆弧半径；I惯性矩；i惯性半径；w截面系数；Z0 重心距离。表2-8-7 热轧等边角钢角钢号数尺寸mm截面面积cm2理论重量Kg/m外表面

21、积m2/mbDr22033.51.1320.8890.07841.4591.1450.0772.52531.4321.1240.09841.8591.4590.0973.03034.51.7491.3730.11742.2761.7860.1173.63632.1091.6560.14142.7562.1630.14153.3822.6540.1414.040352.3591.8520.15743.0862.4220.15753.7912.9760.1564.54532.6592.0880.17743.4862.7360.17754.2923.3690.17655035.52.9712.332

22、0.19743.8973.0590.19754.8033.7700.19665.6884.4650.196注：截面图中的=1/3d及表中的数据用于孔型设计，不作交货条件。5.热轧槽钢的尺寸及质量要求：符号意义：高度；r1腿端圆弧半径；b腿宽度；I惯性矩；d腰厚度；W截面系数；t平均腿厚度；i惯性半径；r内圆弧半径；Z0-YY轴与Y1Y1轴间距。图2-8-3 热轧槽钢表2-8-8 热轧槽钢型号尺寸mm截面面积cm2理论重量kg/mhbdtrr1550374.577.03.56.9285.4386.363404.87.57.53.88.4516.635880435.088.04.010.2488.04510100485.38.58.54.212.74