1、管管道道特特性性值值管管道道外外径径D(m)D(m)0.325请请输输入入数数据据管管道道壁壁厚厚d(m)d(m)0.014线线性性系系数数(m/(mK)(m/(mK)0.0000122弹弹性性模模量量E(Pa)E(Pa)1.98E+11摩摩擦擦系系数数0.4工工作作温温度度t t1 1()()95安安装装温温度度t t2 2()()0泊泊松松系系数数0.3增增强强系系数数n n1.3截截面面积积A(mA(m2 2)0.01367156二二次次矩矩I(mI(m4 4)0.00054667管管道道重重量量g g管管(N/m)N/m)706.3介介质质重重量量g g介介(N/m)N/m)681保保
2、温温厚厚度度d d0 0(m)(m)0.05土土壤壤密密度度(N/m(N/m3 3)17000设设计计压压力力P Pa a(MPa)(MPa)1.6屈屈服服点点s s(MPa)(MPa)235许许用用应应力力(MPa)(MPa)130土土壤壤横横向向压压缩缩反反力力系系数数C(N/mC(N/m3 3)3500000管管道道稳稳定定性性计计算算临临界界最最小小覆覆土土深深度度(kg/m(kg/m3 3)D D0 0(m)(m)g g管管(N/m)N/m)g g介介(N/m)N/m)D(m)D(m)d(m)d(m)0.4170000.425706.36810.3250.014H Hkpkp(m)(
3、m)g(kN)g(kN)1.3911.43临临界界最最小小覆覆土土深深度度(m)(m)1.391.39管管道道上上部部重重力力之之和和(kN)(kN)11.4311.43土土壤壤摩摩擦擦力力计计算算摩摩擦擦长长度度t t1 1()()t t2 2()()E(Pa)E(Pa)(m/(mK)(m/(mK)D(m)D(m)d(m)d(m)9501.98E+110.00001220.3250.0140.4L Lf f(m)(m)f(N)f(N)F(kN)F(kN)29.71105.613137.38摩摩擦擦长长度度(m)(m)29.7129.71轴轴向向推推力力(kN)(kN)3137.383137.
4、38单单位位长长摩摩擦擦力力(kN/m)(kN/m)105.61105.61管管道道热热屈屈服服温温差差计计算算热热屈屈服服温温差差t t1 1()()t t2 2()()E(Pa)E(Pa)(m/(mK)(m/(mK)n ns s(MPa)(MPa)9501.98E+110.00001221.32350.3t t(MPa)(MPa)dTdTg g()()dT()dT()18.57121.0995.00实实际际温温差差()()95.0095.00屈屈服服温温差差()()121.09121.09环环向向应应力力(MPa)(MPa)18.5718.57管管道道过过渡渡段段长长度度计计算算管管道道过
5、过渡渡段段长长度度计计算算t t1 1()()t t2 2()()E(Pa)E(Pa)(m/(mK)(m/(mK)n ns s(MPa)(MPa)9501.98E+110.00001221.32350.3L(m)L(m)dT()dT()A(mA(m2 2)28.9995.000.0137过过渡渡段段长长度度(m)(m)28.9928.99单单位位长长摩摩擦擦力力(kN/m)(kN/m)105.61105.61横横截截面面积积(m(m2 2)0.01370.0137管管道道过过渡渡段段伸伸长长量量计计算算管管道道过过渡渡段段伸伸长长量量计计算算t t1 1()()t t2 2()()E(Pa)E
6、(Pa)(m/(mK)(m/(mK)f(kN/m)f(kN/m)L(m)L(m)dTdTg g()()9501.98E+110.0000122105.6128.99121.09dL1(mm)dL1(mm)dL2(mm)dL2(mm)15.2315.23热热伸伸长长量量(mm)(mm)15.2315.23塑塑性性状状态态下下热热伸伸长长量量(mm)(mm)15.2315.23LZLZ型型管管道道转转角角臂臂长长计计算算臂臂长长计计算算t t1 1()()t t2 2()()C(N/mC(N/m3 3)D(m)D(m)E(Pa)E(Pa)I(mI(m4 4)95035000000.4251.98E
7、+110.000547L1(m)L1(m)L2(m)L2(m)9.509.50臂臂长长度度(m)(m)9.509.50管管道道锚锚固固段段内内轴轴向向力力计计算算管管道道锚锚固固段段轴轴向向力力计计算算t t1 1()()t t2 2()()E(Pa)E(Pa)(m/(mK)(m/(mK)dTdTg g()()t t(MPa)(MPa)9501.98E+110.00001220.3121.0918.57N Na a(kN)(kN)dT()dT()A(mA(m2 2)3061.2195.000.0137锚锚固固段段轴轴向向力力(kN)(kN)3061.213061.21管管道道锚锚固固段段内内轴
8、轴向向力力计计算算管管道道锚锚固固段段轴轴向向力力计计算算t t1 1()()t t2 2()()E(Pa)E(Pa)(m/(mK)(m/(mK)t t(MPa)(MPa)9501.98E+110.00001220.318.57p p(MPa)(MPa)dT()dT()A(mA(m2 2)-216.4895.000.0137当当量量应应力力变变化化范范围围(kN)(kN)-216.48-216.48不不需需要要校校验验过过渡渡段段长长度度,直直管管段段中中可可以以有有锚锚固固段段存存在在过过渡渡段段校校核核长长度度(m)(m)30.0530.05管管道道过过渡渡段段长长度度计计算算(m/(mK
9、)(m/(mK)E(Pa)E(Pa)t t1 1()()t t2 2()()0.00001221.98E+11950(kg/m(kg/m3 3)17000P Pa a(MPa)(MPa)D(m)D(m)d(m)d(m)1.60.3250.014P Pa a(MPa)(MPa)D(m)D(m)d(m)d(m)(kg/m(kg/m3 3)dTdTg g()()1.60.3250.0140.417000121.09过渡段:#如图中的AB段,当介质温度发生变化时,设置补偿器A点处的管道处于自由伸缩状态,管道截面位置由A点逐渐移向B点,由于管道与周围土壤摩擦力f作用,使得管道热伸长受阻,当B点处的摩擦力
10、增加到与温度胀力相等时,管道就能不再向有补偿器的A点处伸长,而进入了自然锚固状态。#在这类管段中,管道的热伸长由A点自由伸缩逐渐过渡B点的锚固状态,管道的轴向温度应力亦从A点处为零逐渐增加到B点处最大值,各处管道都有不同程度的热伸长。#这种管段的设计计算的主要任务是计算管段的热伸长量,以便合理确定补偿器的补偿量。#=管介=0.0811.83E1.5(12)1.830.330.5=9.8(+2)=(12)9.8(+2)=1(1)=2管管道道过过渡渡段段长长度度计计算算L Ly y(m)(m)0=(10)106=(10)210622.3(4106)0.25=(10)106=(1)(10)3(3)1
11、.6106不不需需要要校校验验过过渡渡段段长长度度,直直管管段段中中可可以以有有锚锚固固段段存存在在最最大大允允许许摩摩擦擦长长度度计计算算结结果果实实例例DNDN D(mm)D(mm)d(mm)d(mm)F(kN)F(kN)L Lf f(m)(m)f(kN/m)f(kN/m)25.0033.702.6036.4428.301.2932.0042.402.6046.6329.181.6040.0048.302.6053.5533.511.6050.0060.003.5089.1242.842.0870.0076.004.00129.7962.402.0880.0089.004.00153.22
12、63.502.41100.00114.004.00198.2963.863.11125.00140.004.50274.7977.303.56150.00159.004.50313.3277.944.02200.00219.006.00575.93108.835.29250.00273.006.00721.93113.986.33300.00325.007.001003.15132.967.55350.00377.007.001167.19123.839.43400.00426.007.001321.77123.8410.67500.00529.008.001878.32139.4013.47600.00639.009.002518.70151.4716.52
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