壓力管道計(jì)算表格

1、壓 力 管 道 計(jì) 算,一、管徑計(jì)算,SD144-85水電站壓力鋼管設(shè)計(jì)規(guī)范,1、經(jīng)濟(jì)流速,參數(shù),計(jì)算結(jié)果,工程應(yīng)用取值,設(shè)計(jì)流量,經(jīng)濟(jì)流速,管徑,5,88,5,4.732 ,2、經(jīng)驗(yàn)公式,鋼材材料力學(xué)性能,單位Mpa,參數(shù),計(jì)算結(jié)果,材質(zhì),16,1640,40100,設(shè)計(jì)流量,經(jīng)濟(jì)流速,管徑,Q215,215,205,195,88,-,4.792 ,Q235,235,225,215,3、彭德舒公式,材質(zhì),16,1625,2536,參數(shù),計(jì)算結(jié)果,16Mn,345,325,315,設(shè)計(jì)流量,設(shè)計(jì)水頭,管徑,15MnT,390,375,88,45,5.006 ,利用材料屈服強(qiáng)度,225000,二

2、、管壁厚度計(jì)算,a、按內(nèi)水壓力初步計(jì)算,參 數(shù),計(jì)算結(jié)果,鋼管內(nèi)徑,跨中總水頭,鋼材屈服強(qiáng)度,鋼材材質(zhì),強(qiáng)度,水頭,焊縫,壁厚,m,m,kpa,折算系數(shù),乘數(shù),系數(shù),mm,5,45,99000,Q235,0.44,1.25,0.9,0.015,工程計(jì)算取值,0.015,工程采用壁厚,18,b1、穩(wěn)定要求管壁厚度,40,mm,不滿足,b2、穩(wěn)定要求最小管壁厚度,10,mm,滿足要求,c、不設(shè)加勁環(huán)，外壓穩(wěn)定計(jì)算,鋼材彈模,壁厚,內(nèi)徑,臨界壓力,抗外壓穩(wěn)定,是否滿足,kpa,mm,m,安全系數(shù),穩(wěn)定要求,2.06E+08,18,5.000 ,19.222272,2,不滿足,c、設(shè)加勁環(huán)，外壓穩(wěn)定計(jì)

3、算,參 數(shù),計(jì)算結(jié)果,鋼管平均半徑,鋼材彈模,壁厚,加勁環(huán)間距,泊松比,臨界波數(shù),臨界壓力,2.509,2.06E+08,0.018,8,0.3,5,265.8951026,計(jì)算過程,是否滿足2倍大氣壓值,是否,1+n2*l2/3.142/r2,/r,n2-1,重新計(jì)算,26.75247147,0.007174173,24,滿足條件,否,三、鋼管受力分析,參數(shù)輸入?yún)^(qū),水容重,鋼材容重,平均直徑,壁厚,管線與 水平夾角,加勁環(huán)間距,含附件材料重量系數(shù),伸縮節(jié)水頭,9.81,78.5,5.018 ,0.018,40,8,1.1,45,軸力計(jì)算,每米水重,每米鋼重,水、管 法向分力,鎮(zhèn)墩間鋼管總跨數(shù)

4、,鋼管自重 軸線分力,填料摩擦系數(shù),支墩摩擦 系數(shù),192.619 ,24.415 ,1330.060 ,6 ,721.905 ,0.3,0.1,伸縮節(jié)內(nèi)水壓力,填料摩擦力,支墩鋼管摩阻,填料長度,總軸向力,套管徑差,97.352 ,419.0524322,665.030 ,0.2,-1903.339 ,取兩倍的壁厚,四、管壁應(yīng)力分析,1、跨中斷面(計(jì)算點(diǎn)度管壁外緣應(yīng)力最大）,a、環(huán)向應(yīng)力,1,61533.225 ,b、軸應(yīng)力,x1,-6707.539 ,x,x1,-1245.550 ,-7953.09 ,兩端固結(jié),M,443.389 ,c、強(qiáng)度校核,65870.848 ,允許應(yīng)力,11137

5、5,滿足條件,2、支承環(huán)旁膜應(yīng)力區(qū)邊緣斷面(=180度，剪應(yīng)力x=0),a、環(huán)向應(yīng)力,1,64161.385 ,b、軸應(yīng)力,x1,-6707.539 ,x,x2,-2490.801 ,-9198.34 ,兩端固結(jié),M,-886.671 ,c、強(qiáng)度校核,69220.452 ,允許應(yīng)力,111375,滿足條件,3、加勁環(huán)及其旁管壁,a、加勁環(huán)截面尺寸,肋高,肋寬,上翼板寬,上翼板厚,管壁等效翼緣,環(huán)重心至內(nèi)壁,環(huán)重心至鋼管中心距離,0.3,0.036,0.3,0.018,0.165 ,0.15,加勁環(huán)截面積,有效截面積,截面慣性矩,B1,b,2.65,0.0168 ,0.022805,4.82E-

6、04,0.724577943,0.907 ,0.106,單支面積,0.022805 ,雙支面積,0.028204668,截面慣性矩計(jì)算見截面幾何性質(zhì)計(jì)算軟件,b、應(yīng)力驗(yàn)算,M1,N1,2,x1,x2,x3,4.292838144,51.88880277,0.710 ,7102.908686,-6707.539 ,-2490.801 ,79381.04123,+內(nèi)緣-外緣,鋼管內(nèi)壁應(yīng)力,66914.58473,鋼管外壁應(yīng)力,92335.95833,最大應(yīng)力值,92335.95833,允許應(yīng)力,111375,是否滿足條件,滿足條件,4、支承環(huán)及其旁管壁,a、支承環(huán)截面尺寸,肋高,肋寬,支承板寬,支

7、承板厚,管壁等效翼緣,環(huán)重心至內(nèi)壁D,環(huán)重心至鋼管中心距離,0.4,0.036,0.400 ,0.018 ,0.165760553,0.2,支承環(huán)截面積,有效截面積,截面慣性矩,B1,b,2.700 ,0.022248,0.03541538,1.00E-03,0.619053078,0.889 ,0.108,單支面積,0.028215 ,雙支面積,0.03541538,截面慣性矩計(jì)算見截面幾何性質(zhì)計(jì)算軟件,b、環(huán)向應(yīng)力,水壓力2,23440.89266,kPa,支承環(huán)TR的3,計(jì)算斷面,K1,K2,K1+B1*K2,TR,3,0,-0.238732415,0.318 ,0.044327599,

8、58.95837564,1664.767557,67,-0.264596367,0.124 ,-0.153996008,-204.8239633,-5783.474957,90,-0.25,0.000 ,-0.25,-332.5150528,-9389.001412,+,90,0.25,0.000 ,0.25,332.5150528,9389.001412,-,113,0.264596367,-0.124 ,0.153996008,204.8239633,5783.474957,180,0.238732415,-0.318 ,-0.044327599,-58.95837564,-1664.76

9、7557,支承環(huán)M的4,ZR1,0.2,ZR2,0.182,ZR3,-0.236 ,計(jì)算斷面,K3,K4,MR,4（kPa),管內(nèi)壁,管外壁,外環(huán)壁,0,0.11120661,-0.068309886,389.5485394,77843.12866,70837.24708,-91854.89182,67,-0.144060366,0.125626419,-499.2983999,-99774.34298,-90794.65211,117733.7247,90,-1.44334E-16,0.25,35.9116257,7176.187348,6530.330487,-8467.90107,+,9

10、0,1.44334E-16,-0.25,-35.9116257,-7176.187348,-6530.330487,8467.90107,-,113,0.144060366,-0.125626419,499.2983999,99774.34298,90794.65211,-117733.7247,180,-0.11120661,0.068309886,-389.5485394,-77843.12866,-70837.24708,91854.89182,軸向應(yīng)力x,x1,-6707.538564,x3,69175.676 ,內(nèi)壁取正值,管外壁取負(fù)值,-m/3.14*r2*,2490.890321

11、,x2計(jì)算表,計(jì)算斷面,x2(kPa),0,2490.89032 ,67,973.26839 ,90,0.00000 ,+,90,0.00000 ,-,113,-973.26839 ,180,-2490.89032 ,c、強(qiáng)度校核,c1、軸力產(chǎn)生應(yīng)力,相當(dāng)應(yīng)力計(jì)算表,計(jì)算斷面,x,（kPa),叛斷,最大內(nèi)外壁應(yīng)力,最大外環(huán)應(yīng)力,(2)+(3),(1)+(2),管內(nèi)外壁,環(huán)外壁,0,25105.66022,-4216.648 ,27457.90 ,25105.66 ,36646.98 ,32829.9 ,67,17657.4177,-5734.270 ,21116.79 ,17657.42 ,9

12、0,14051.89125,-6707.539 ,18349.40 ,14051.89 ,90,32829.89407,-6707.539 ,36646.98 ,32829.89 ,90,113,29224.36762,-7680.807 ,33727.22 ,29224.37 ,180,21776.1251,-9198.429 ,27552.08 ,21776.13 ,允許應(yīng)力,135675,鋼管內(nèi)外壁是否滿足要求,滿足條件,鋼管外環(huán)是否滿足要求,滿足條件,最大應(yīng)發(fā)生部位,90,c2、軸力彎矩產(chǎn)生應(yīng)力,相當(dāng)應(yīng)力計(jì)算表,計(jì)算斷面,x,（kPa),最大應(yīng)力,叛斷發(fā)生部位,管內(nèi)壁,管外壁,環(huán)外壁,

13、管內(nèi)壁,管外壁,環(huán)外壁,管內(nèi)壁,管外壁,環(huán)外壁,管內(nèi)壁,管外壁,管外環(huán),0,102948.7889,95942.907 ,-66749.2316,64959.03 ,-73392.324 ,0,90170.25658,147081.4318,-66749.2316,126402.5889,171859.6046,135391.1424,計(jì)算時(shí)自行查看最大應(yīng)力發(fā)生部位67,-82116.92528,-73137.234 ,135391.1424,63441.41 ,-74909.946 ,0,126402.5889,74039.50813,135391.1424,90,21228.0786,20

14、582.222 ,5583.990178,62468.14 ,-75883.214 ,0,55016.55147,87998.49528,5583.990178,90,25653.70672,26299.564 ,41297.79514,62468.14 ,-75883.214 ,0,54386.04177,91900.07965,41297.79514,113,128998.7106,120019.020 ,-88509.3571,61494.87 ,-76856.482 ,0,111756.5544,171859.6046,-88509.3571,180,-56067.00356,-49061.122 ,113631.0169,59977.25 ,-78374.104 ,0,100516.2848,68588.42786,11363