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1、钢筋的计算截面面积及公称质量表(梁用)公称直径不同根数直径的计算截面面积（mm2）公称质量（mm）123456789（kg/m）519.60395979981181371571770.154628.2757851131421701982262540.2226.533.20661001331661992322652990.260850.271011512012523023524024530.3951078.541572363143934715506287070.61712113.1022633945256567979290510170.88814153.903084626167709241078
2、123213851.21016201.10402603804100512061407160818091.58018254.505097631018127215271781203622902.00020314.206289421257157118852199251328272.47022380.1076011401521190122812661304134212.98025490.9098214731963245429453436392744183.85028615.80123218472463307936954310492655424.83032804.20160824133217402148
3、255630643472386.310361018.00 203630544072508961077125814391617.990401257.00 25133770502762837540879610053113109.870501964.0039285892785698201178413748157121767615.420单位板宽受力钢筋相应直径和间距的面积（单位：mm2）间距 直径810121416182090558.51872.661256.641710.422234.022827.433490.66100502.65785.41130.971539.382010.622544.6
4、93141.59110456.967141028.161399.441827.842313.352855.99120418.88654.5942.481282.821675.522120.582617.99125402.12628.32904.781231.51608.52035.752513.27130386.66604.15869.981184.141546.631957.452416.61140359.04561807.841099.561436.161817.642243.99150335.1523.6753.981026.251340.411696.462094.4160314.16
5、490.87706.86962.111256.641590.431963.5170295.68462665.28905.521182.721496.881848175287.23448.8646.27879.651148.931454.111795.2180279.25436.33628.32855.211117.011413.721745.33190264.56413.37595.25810.21058.221339.311653.47200251.33392.7565.49769.691005.311272.351570.8常用建筑材料的比重（吨/立方米）及容重（千克/立方米）名称比重容重
6、名称比重容重钢、铸钢熟铁7.857.8078507800耐火砖轻质空心砖2.5-2.71900-2100600-1200生铁黄铜锡铸镍7.218.507.408.407208850074008400硅酸盐砖矿渣砖水泥砖水泥花砖1.6-2.41700-19001400-16001600-24001980锌铸铝锑铅7.052.566.6711.3570502560667011350土坯砖碎砖水泥水泥散装2303.05-3.151400-1500110012001450铅丝紫铜丝木材(水分15%)樟木11.288.871.3-1.7112778874400-1000620水泥袋装压实火山灰质水泥矿渣
7、水泥石棉2.85-32.85-32.51600850-11501100-13001000梓木杉木软木574530240石棉(松)石棉屑石棉板2.5400600900粘土砖矿渣棉2.6-2.71600-1900250玻璃棉石油0.86150-200860普通玻璃石灰水泥砂浆石灰砂浆2.53.12560800-100022001700汽油煤油机械油桐油0.95以下0.94-0.95709-788800-840950940混合砂浆素混凝土泡沫混凝土钢筋混凝土1.72.40.3-0.92.517002400300-9002500水玻璃纤维塑料聚氯乙烯塑料卷材1.36-1.51.41.35-1.4136
8、0-150014001350-1400沥青混凝土黄土粘土(湿压实)矽藻土200012501800600聚苯乙烯塑料过氯乙烯清漆泡沫塑料沥青漆1.05-1.081.250.201.13-1.141050-108012502001130-1140菱苦土花岗岩石灰岩大理石3.1-3.42.5-2.72.4-2.72.6-2.7800-9002500-27002400-27001800-2600洋干漆稻草石油沥青煤沥青1.08-1.131080-11301201000-11001340石屑白凡石矿渣炉渣160014481000-1200850锯木屑老糠150-250190A、常用计量单位换算表公制重量
9、单位表（1） 单位名称旧名称代号对主单位的比毫克厘克分克克十克百克公斤公担吨公丝公毫公厘公分公钱公两公斤，千克公担公吨mgcgdggdaghgkgqt0.000001公斤0.00001公斤0.0001公斤0.001公斤0.01公斤0.1公斤主单位100公斤1000公斤常用英美制重量单位表（2）1英吨（长吨，ton)=2240磅 1美吨（短吨，sh.ton)=2000磅1磅（1b)=16盎司（oz）常用重量单位换算表（3） 吨 公斤 市担 市斤 英吨 美吨 磅吨110002020000.984211.10232204.6公斤0.00110.0220.0009840.0011022.2046市担0
10、.055011000.049210.0551110.231市斤0.00050.50.0110.0004920.0005511.1023英吨1.016051016.0520.32092032.0911.12002240美吨0.90719907.1918.14371814.370.892912000磅0.0004540.45360.0090720.90720.0004460.00051压力单位换算表（4）公斤/厘米2大气压水银柱高度(毫米)水柱高度（米）毫巴磅/寸2英寸水柱公斤/厘米2大气压水银柱高度（毫米）水柱高度（米）毫巴磅/寸2英寸水柱11.03330.001360.100.001020.0
11、7030.002540.967810.001310.09680.0009870.06800.00246735.56760.00173.5560.7686351.7151.8710.0010.33330.013610.01020.7030.0254981.001013.251.333298.10168.952.4914.22314.6960.01931.42230.0145110.0361395.00407.50.53539.400.40227.721常用长度单位换算表（5）米厘米毫米市尺英尺英寸米1100100033.2808439.3701厘米0.011100.030.032810.3937毫米0.0010.110.0030.0032810.03937市尺0.3333333.333333.3311.093613.1234英尺0.304830.48304.80.9144112英寸0.02542.5425.40.07620.083331英寸与毫米对照表（6）寸毫
