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注: |
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本计算书是参照GB50341-2003附录D编制的。 |
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1.黄色的背景是需要输入的项,蓝色字体为结果。如果出现红色文字,则说明计算不通过。 |
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This calculation sheet is prepared referring to GB50341-2003 appendix D. |
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2. 参考标准GB50314-2003附录D和和其条文说明。 |
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3.有效厚度应除去腐蚀余量和gangban负偏差 |
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输入数据 Input Data |
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4.17列的储罐质量为“罐壁及其支撑的固定罐顶重量,包含保温,梯子和管口附件等,不含罐底板和储液” |
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储罐内径 Inside diameter of Tank |
D= |
42 |
m |
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5.建议校核完后检查晃动波高加液位高度小于储罐高度 |
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储罐壁高度 Height of Tank |
H= |
17.5 |
m |
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Hw+hv= |
16.1204 |
≤ |
17.5 |
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储罐液位高度 Maximum design height of fluid |
Hw= |
15.75 |
m |
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6.GB50341地震力计算一般比同工况下的API650计算得到的值要低 |
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储罐液体密度 Density of fluid |
ρ= |
792 |
kg/m3 |
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7.GB50341地震计算不分锚固与不锚固,API650分锚固和非锚固,一般锚固时可以增 |
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设计温度下罐壁底部钢材弹性模量 Modulus of Elasticity of bottom shell at design temperature |
E= |
203000 |
Mpa |
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大地震降低系数, 可以减薄筒体厚度。计算所需要的螺栓个数建议采用API650的算法。 |
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底层罐壁的有效厚度 Equivalent uniform thickness of bottom shell |
t= |
0.0175 |
m |
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8.如果静压设计的壁厚在抗震计算不能通过,那么对最底层罐壁进行多大的增加,其余层罐壁也应在静压计算的基础上以同样比例增加,否则应进行逐层罐壁的抗震校核。(hold待讨论) |
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罐壁距离底板1/3处的有效厚度 Equivalent uniform thickness of 1/3 H shell |
δ3= |
0.0125 |
m |
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储罐质量(除罐底) Weight of tank (except bottom plate) |
mo= |
233300 |
kg |
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设计地震分组 Design group of seismic |
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第三组 |
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场地类别 Site ground category |
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Ⅰ |
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设防烈度 Seismic intensity |
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7,0.15g |
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设计计算 Checking strength |
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储罐半径 Ridius of tank |
R=D/2 |
21 |
m |
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直径液高比 Diamter-Height ratio |
D/Hw |
2.6667 |
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耦连振动周期系数 Coupling vibration of periodic coefficients |
Kc |
0.00047279 |
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储罐与储液耦连振动基本周期 Tank and fluid coupling vibration natural period |
 |
0.3052 |
s |
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晃动周期基本系数 Sloshing period coefficient |
Ks |
1.1160 |
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储液晃动基本周期 Natural period of sloshing of fluid |
Tw=Ks√D |
7.2327 |
s |
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水平地震影响系数最大值
Max coefficient of lateral acceleration |
αmax |
0.345 |
m/s2 |
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反应谱特征周期
Response spectrum feature period |
Tg |
0.35 |
s |
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地震影响系数(耦连)
Seismic coefficient(Coupling) |
αc |
0.3450 |
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地震影响系数(晃动)
Seismic coefficient(Sloshing) |
αw |
0.0118 |
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综合影响系数
Comprehensive effect coefficient |
Cz |
0.4 |
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罐体影响系数 Tank effect coefficient |
Y1 |
1.1 |
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重力加速度 Acceleration of gravity |
g |
9.81 |
m/s2 |
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储罐内储液总质量 Weight of fluid |
m1=0.25πD2Hwρ |
17282008.0 |
kg |
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动液系数 impulsive coefficient |
Fr |
0.4246 |
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产生地震作用的储液的等效质量
The effective impulsive weight |
m=m1Fr |
7337326.61 |
kg |
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罐底部水平地震剪力
Seismic shear at the base of tank |
Q0=10-6CzαcY1mg |
10.93 |
MN |
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罐壁底部的地震弯矩
Seismic moment at the base of tank |
M1=0.45Q0Hw |
77.44 |
MN |
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水平地震作用下,罐内液面晃动波高 The height of sloshing fluid |
hv=1.5αwR |
0.3704 |
m |
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竖直地震影响系数
Vertical Seismic effect coefficient |
Cv |
1 |
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罐壁底部垂直载荷
Vertical load at the base of tank |
N1=10-6mog |
2.2887 |
MN |
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罐壁底层横截面积
Area of bottom of shell |
A1=πDt |
2.3091 |
m2 |
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底圈罐壁的断面系数 Cross section coefficient of bottom shell |
Z1=0.785D2t |
24.2330 |
m3 |
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翘离影响系数 Uplift effect coefficient |
CL |
1.4 |
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罐壁许用临界压力
Allowance stress of bottom shell |
[σcr]=0.15Et/D |
12.69 |
Mpa |
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罐壁底部最大轴向压应力
Max axial stress of bottom shell |
 |
5.47 |
Mpa |
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σ |
≤ |
[σcr] |
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轴向力校核合格 It is safe |
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导向管与导向管套管上的钢盖板之间的允许最小间隙
Allowance distance of guide pipe to guide pipe cover plate |
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0.0065 |
m |
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