自立式钢烟囱设计(GB50051-2002)

1、LOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书项目名称xxxxxxxxx设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本abc1/15A1 1 . .设设计计条条件件烟囱设计： 烟囱高度H：80.0(m)(*按技术协议)烟囱直径D：7.5(m)烟气温度：100()烟囱筒壁材质：Q345烟温下强度设计值ft：295(N/mm2)烟温下抗剪强度设计值fvt：170(N/mm2)烟温下弹性模量Et：206,000(N/mm

2、2)烟囱平台活载LL：4.0(kN/m2)(*按技术协议)抗震设计： 抗震设防烈度：7度(*按技术协议)场地类别：(*按技术协议)水平基本地震加速度值：0.100g (-)(*按技术协议)多遇地震/罕遇地震：多遇地震水平地震影响系数max：0.08(-)(*按GB50011-2010第5.1.4条)设计地震分组：第一组特征周期值Tg：0.35(s)(*按GB50011-2010第5.1.4条)建筑结构抗震阻尼比：0.01(-) (*按GB50051-2002第5.5.1条)结构自振周期T1：0.963(s)水平地震影响系数1：0.041(-)竖向地震影响系数vmax0.000(-)本项目不计算

3、竖向地震抗风设计： 设计风速：35.8(m/s)(*按技术协议)基本风压0：0.80(kN/m2)地面粗糙度类别：A类建筑结构抗风阻尼比：0.01(-)(*按GB50051-2002第5.2.4条)体型系数s：0.80(-)(*按GB50009-2012表8.3.1)说明：1.此版风荷载按最新 GB50009-2012建筑结构荷载规范计算。LOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时

4、间页数/总页版本项目名称xxxxxxxxxabc2/15A2 2 . .烟烟囱囱尺尺寸寸及及荷荷重重计计算算( (含含烟烟囱囱附附属属荷荷重重) )结点标高高差烟囱外径筒壁厚度荷重轴力截面惯性矩NO.ELhiDoiti筒壁外保温+护板其他(*1)合计GiNiIx(-)(m)(m)(mm)(mm)(N)(N)(N)(N)(N)(mm4)180.000274.0006.0007528.014.0152,5440338,968491,512491,5121.830E+127.50(m)368.0006.0007528.014.0152,544028,327180,871672,3841.830E+1

5、2(内径) 462.0006.0007528.014.0152,5440115,701268,245940,6281.830E+12烟囱556.0006.0007528.014.0152,544092,327244,8711,185,5001.830E+12651.0005.0007528.014.0127,120039,188166,3091,351,8081.830E+12745.0006.0007528.014.0152,54418,92028,327199,7921,551,6001.830E+12840.0005.0007540.020.0181,74515,79139,207236

6、,7441,788,3442.836E+1280.00(m)935.0005.0007540.020.0181,74515,791364,265561,8022,350,1462.836E+12烟气入口1030.0005.0007540.020.0181,74515,791117,315314,8512,664,9972.305E+121125.0284.9727540.020.0180,72815,70323,492219,9232,884,9202.305E+121220.0005.0287540.020.0182,76315,87923,757222,4003,107,3192.305E

7、+121316.0004.0007550.025.0181,86612,64918,912213,4283,320,7472.663E+121412.0004.0007550.025.0181,86612,64918,912213,4283,534,1752.663E+1221.072(m)158.0004.0007550.025.0181,86612,64918,912213,4283,747,6022.663E+12 A A163.9564.0447550.025.0183,86712,788112,810309,4654,057,0672.663E+12170.0003.9567550.

8、025.0179,86612,510104,704297,0804,354,1473.677E+12合计80.002,707,900161,1201,485,1274,354,1473.956(m)附注：1) 烟囱内径：Di=7500(mm)2) 筒壁材质密度：m=76.93(kN/m3)3) 保温密度：l=1.00(kN/m3)入口膨胀节4) 保温厚度：tl=50(mm)(*烟囱采用岩棉毡保温，厚度为80mm，密度80100kg/m3)5) 外护板间隙(至烟囱外壁)ga=200(mm)9.200(m)5) 腐蚀余量：=3.0(mm)6) 结构自振周期: Tl=0.963(s)7) 筒身荷重统

9、计时按未腐蚀壁厚计算； A - A 8) *1主要包括烟囱平台、烟囱附带装置、直爬梯及活荷载等附属荷载，具体数值见下表：烟囱附属荷重计算表。LOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc3/15A3 3 烟烟囱囱附附属属荷荷重重计计算算结点标高平台荷重烟囱附带装置直爬梯及恒载活载恒载NO.EL间隙(*4)平台宽平台角度展开长度 展开面积重

10、量其他重量其他(*3)合计(*2)+活载(-)(m)(mm)(mm)()(m)(m2)(kN)(-)(kN)(kN)(kN)(kN)(kN)180.000 274.000400.02000.0360.032.35864.751.77328.32780.101258.867338.968368.0000.0000.00.00028.32728.3270.00028.327462.000400.01000.060.04.8694.93.896消音器(1/2)64.00028.32796.22319.478115.701556.0000.0000.00.000消音器(1/2)64.00028.327

11、92.3270.00092.327651.000400.01000.040.03.2463.22.59723.60626.20312.98539.188745.0000.0000.00.00028.32728.3270.00028.327840.000400.01000.040.03.2463.22.59723.62526.22212.98539.207935.000400.02000.0360.032.35864.751.773烟气挡板30.00023.625105.398258.867364.2651030.0000.00.00.0000.00.000开口上标高93.69023.62511

12、7.3150.000117.3151125.0280.00.00.0000.00.00023.49223.4920.00023.4921220.0000.00.00.0000.00.00023.75723.7570.00023.7571316.0000.00.00.0000.00.00018.91218.9120.00018.9121412.0000.00.00.0000.00.00018.91218.9120.00018.912158.0000.00.00.0000.00.00018.91218.9120.00018.912163.9560.00.00.0000.00.000开口下标高93.

13、69019.120112.8100.000112.810170.0000.00.00.0000.00.000烟囱底板86.00018.704104.7040.000104.704合计 140.8112.637431.380377.927921.944563.1831485.127附注：1) *1平台恒载包括平台支撑和格栅；800(N/m2)2) *2平台活荷载按与业主签订的技术规范取值；4,000(N/m2)3) *3其他是指烟囱筒壁附属，如支撑板、加强环等；200(N/m2)4) *4此处间隙是指烟囱筒壁内表面至平台内边线的距离。LOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据

14、GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc4/15A4 4 . .烟烟囱囱筒筒身身强强度度及及稳稳定定设设计计值值结点标高腐蚀后腐蚀后截面特性强度计算稳定相关计算中径筒壁厚截面积截面模量抗拉压弯临界应力WL临界应力EQ抗剪参数稳定系数NO.ELDmiti-AiWiftcrtcrtfvtNex(-)(m)(mm)(mm)(mm2)(mm3)(N/mm2)(N/mm2)(N/mm2)(N/mm2)(

15、-)(-)180.000274.0007511.011.0259,5624.874E+08295.080.3100.4170.0132,153,9571.000368.0007511.011.0259,5624.874E+08295.080.3100.4170.0132,153,9571.000462.0007511.011.0259,5624.874E+08295.080.3100.4170.0132,153,9571.000556.0007511.011.0259,5624.874E+08295.080.3100.4170.0132,153,9571.000651.0007511.011.

16、0259,5624.874E+08295.080.3100.4170.0132,153,9571.000745.0007511.011.0259,5624.874E+08295.080.3100.4170.0132,153,9571.000840.0007517.017.0401,4617.544E+08295.0124.0154.9170.0204,727,7781.000935.0007517.017.0401,4617.544E+08295.0124.0154.9170.0204,727,7781.0001030.0007517.017.0301,6725.483E+08295.0124

17、.0154.9170.0166,425,9171.0001125.0287517.017.0301,6725.483E+08295.0124.0154.9170.0166,425,9171.0001220.0007517.017.0301,6725.483E+08295.0124.0154.9170.0166,425,9171.0001316.0007522.022.0383,9106.062E+08295.0160.2200.2170.0192,237,3951.0001412.0007522.022.0383,9106.062E+08295.0160.2200.2170.0192,237,

18、3951.000158.0007522.022.0383,9106.062E+08295.0160.2200.2170.0192,237,3951.000163.9567522.022.0383,9106.062E+08295.0160.2200.2170.0192,237,3951.000170.0007522.022.0519,8839.776E+08295.0160.2200.2170.0265,470,8681.000附注：1) Q345材质在100烟温下的材料特性：抗拉压弯强度设计值：ft=295(N/mm2)抗剪强度设计值：fvt=170(N/mm2)弹性模量：Et=206000(

19、N/mm2)2) 烟囱筒身截面特性计算时按腐蚀后壁厚计算。LOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc5/15A5 5 . .水水平平地地震震荷荷载载计计算算结点标高中心标高高差重力荷载地震荷载(水平)(DL+0.5LL)地震力剪力弯矩NO.ELHihiGiFiQiMi(-)(m)(m)(m)(N)(N)(N)(N-m)180.0000

20、00274.00077.0006.000362,07929,04329,043398,291368.00071.0006.000180,87115,21344,255796,581462.00065.0006.000258,5068,29852,5531,194,872556.00059.0006.000244,8718,29860,8511,593,163651.00053.5005.000159,8166,91567,7661,925,072745.00048.0006.000199,7928,29876,0642,323,362840.00042.5005.000230,2516,915

21、82,9792,655,271935.00037.5005.000432,3686,91589,8942,987,1801030.00032.5005.000314,8516,91596,8093,319,0891125.02827.5144.972219,9236,876103,6853,649,1391220.00022.5145.028222,4006,954110,6394,204,1791316.00018.0004.000213,4285,532116,1704,690,9791412.00014.0004.000213,4285,532121,7025,177,779158.00

22、010.0004.000213,4285,532127,2345,664,579163.9565.9784.044309,4655,593132,8276,156,733170.0001.9783.956297,0805,471138,2986,638,178合计 80.0004,072,556138,298附注：水平地震荷载计算采用GB50051-2002底部剪力法抗震设防烈度：7度重力荷载系数：1.00(-)场地类别：结构等效总重力荷载：GE=4,072,556 (N)水平地震影响系数：1=0.041(-)底部剪力修正系数：c=0.833(-)特征周期：Tg=0.350(s)水平地震产生底

23、部剪力：V0=138,298 (N)自振周期：T1=0.963(s)水平地震产生底部弯矩：M0=6,638,178 (N-m)水平地震剪力Q150 100 50 0 0 10 20 30 40 50 60 70 80 90 剪力Q(kN)烟囱标高 Hi (m)水平地震弯矩M8000 6000 4000 2000 0 0 10 20 30 40 50 60 70 80 90 弯矩M(kN-m)烟囱标高 Hi (m)LOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设

24、计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc6/15A6 6 . .截截面面强强度度及及稳稳定定验验算算( (考考虑虑地地震震组组合合) )结点标高中心标高强度计算受拉时受压时稳定计算地震作用时，荷载分项系数轴力弯曲应力应力应力比应力应力比应力应力比荷载类型地震荷载NO.ELHiNi/AiMi/Wittcc水平主竖向主(-)(m)(m)(N/mm2)(N/mm2)(N/mm2)(-)(N/mm2)(-)(N/mm2)(-)恒载1.201.20180.000活载0.500.50274.00077.0001.2591.0

25、56-0.203 0.002-2.316 0.0232.3180.008风荷载1.401.40368.00071.0001.9282.5110.5830.006-4.439 0.0444.4470.015水平EQ1.300.50462.00065.0002.8784.3341.4560.014-7.213 0.0727.2330.025竖向EQ0.501.30556.00059.0003.7846.4972.7130.027-10.281 0.10210.3200.035RE=0.800.80651.00053.5004.3718.5384.1670.041-12.909 0.12912.96

26、90.044745.00048.0005.11011.2476.1370.061-16.357 0.16316.4480.056840.00042.5003.8528.8525.0000.032-12.704 0.08212.7580.043935.00037.5004.83410.5435.7090.037-15.377 0.09915.4580.0521030.00032.5007.43516.9649.5290.062-24.400 0.15724.5840.0831125.02827.5148.13519.52211.3870.073-27.657 0.17927.8900.09512

27、20.00022.5148.84323.52814.6850.095-32.370 0.20932.6760.1111316.00018.0007.48225.45417.9720.090-32.937 0.16433.2450.1131412.00014.0008.01630.70322.6870.113-38.719 0.19339.1170.133158.00010.0008.55037.01728.4670.142-45.567 0.22846.0790.156163.9565.9789.32444.47935.1560.176-53.803 0.26954.4750.185170.0

28、001.9787.43432.44525.0120.125-39.879 0.19940.2610.136应力比最大值 MAX0.176MAX0.269MAX0.185PassPass强度及稳定验算通过！附注：烟囱截面强度及稳定验算遵循GB50051-2002规范强度验算：稳定验算：c r ts及ftW n iM iA n iN iftNNW iM iA iN i-+）（E x/ i8 . 01jLOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50

29、051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc7/15A7 7 . .风风荷荷载载计计算算结点标高中心标高外径高差风压高度变化系数体形系数风振系数风荷载烟囱在风荷载作用下标准值水平力剪力弯矩位移转角位移量NO.ELHiDoihizszkFiQiMi(-)(m)(m)(m)(m)(-)(-)(-)(kN/m2)(N)(N)(N-m)()(mm)180.000176.2274.00077.007.5286.002.080.802.493.315149,744149,744449,2310.1709158.2368.00071.007.52

30、86.002.030.802.363.080139,110288,8541,765,0220.1704140.3462.00065.007.5286.001.990.802.232.843128,421417,2753,883,4070.1691122.4556.00059.007.5286.001.940.802.092.606117,710534,9856,740,1850.1662104.7651.00053.507.5285.001.900.801.962.39290,038625,0239,640,2060.161190.4745.00048.007.5286.001.840.801

31、.842.17498,200723,22313,684,9450.154773.6840.00042.507.5405.001.790.801.711.96674,102797,32517,486,3170.143960.7935.00037.507.5405.001.730.801.601.77767,000864,32521,640,4410.136148.31030.00032.507.5405.001.670.801.491.59460,088924,41226,112,2840.126536.61125.02827.517.5404.971.600.801.381.41753,127

32、977,54030,840,5370.112026.21220.00022.517.5405.031.520.801.281.24647,2361,024,77635,874,3590.094916.91316.00018.007.5504.001.440.801.201.10433,3311,058,10740,040,1260.074611.21412.00014.007.5504.001.340.801.130.97429,4241,087,53144,331,4030.05876.4158.00010.007.5504.001.220.801.080.84125,3941,112,92

33、548,732,3150.04102.9163.9565.987.5504.041.090.801.030.72021,9761,134,90153,277,4190.02160.6170.0001.987.5503.961.090.801.000.70020,9101,155,81157,808,4470.00000.0合计80.00 1,155,811附注：1) 风荷载计算采用规范GB50009-2001及GB50051-2002设计基本风压：0=0.80(kN/m2)(*当横风向风振效应起控制作用时，基本风压按GB50051-2002第5.2.5条取值)地面粗糙度类别：A类2) 上表中的

34、(a)为圆形截面体形系数，(b)为圆形+三角形截面体形系数；3) 风荷载体型系数取值时，按有破风圈考虑；(b)处截面螺旋形破风圈板宽度取值：b=750.0(mm)螺旋形破风圈板厚度取值：t=8.0(mm)(a)(b)LOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc8/15A8 8 . .截截面面强强度度及及稳稳定定验验算算( (不不考考虑虑

35、地地震震组组合合) )结点标高中心标高强度计算受拉时受压时稳定计算荷载分项系数轴力弯曲应力应力应力比应力应力比应力应力比荷载类型风荷载为主NO.ELHiNi/AiMi/Wittcc(-)(m)(m)(N/mm2)(N/mm2)(N/mm2)(-)(N/mm2)(-)(N/mm2)(-)恒载1.35180.000活载1.40274.00077.0002.6061.290-1.316 0.016-3.897 0.0493.9020.013风荷载1.40368.00071.0003.5475.0701.5230.019-8.617 0.1078.6450.029。=1.00462.00065.000

36、4.94611.1556.2090.077-16.101 0.20016.1880.055556.00059.0006.21919.36113.1410.164-25.580 0.31825.7710.087651.00053.5007.08727.69120.6040.256-34.778 0.43335.0900.119745.00048.0008.12639.30931.1830.388-47.435 0.59047.9440.163840.00042.5006.05232.44926.3970.213-38.500 0.31138.8110.132935.00037.5007.9734

37、0.15732.1840.260-48.130 0.38848.6390.1651030.00032.50012.01966.67854.6580.441-78.697 0.63579.8800.2711125.02827.51413.00478.75165.7480.530-91.755 0.74093.2680.3161220.00022.51413.99992.86578.8660.636-106.864 0.862108.7880.3691316.00018.00011.75196.13984.3890.527-107.890 0.673109.7290.3721412.00014.0

38、0012.501110.02697.5250.609-122.527 0.765124.7690.423158.00010.00013.252125.608112.3560.701-138.859 0.867141.5760.480163.9565.97814.340143.048128.7080.803-157.388 0.982160.7420.545170.0001.97811.36199.85388.4920.552-111.213 0.694113.0230.383应力比最大值 MAX0.803MAX0.982MAX0.545PassPass强度及稳定验算通过！附注：烟囱截面强度及稳

39、定验算遵循GB50051-2002规范，考虑了烟气压力荷载强度验算：稳定验算：c r ts及ftW n iM iA n iN iftNNW iM iA iN i-+）（E x/ i8 . 01jLOGO自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc9/15A9 9 . .烟烟囱囱开开口口处处烟烟气气压压力力荷荷载载1 10 0 . .地地脚脚锚锚

40、栓栓的的选选用用及及验验算算结点标高高差烟气荷载水平力剪力弯矩NO.ELhiFeiQeiMei(-)(m)(m)(N)(N)(N-m)Pmax -地脚锚栓最大拉力：270.3(kN)180.000 M -烟囱底部最大弯矩设计值：97,620(kN-m)274.0006.000000N -烟囱自重(不含内衬)设计值：3,412(kN)368.0006.000000d0 -地脚锚栓所在圆直径：7.500(m)462.0006.000000n -地脚锚栓数量：2 *90(-)4.0556.0006.000000651.0005.000000选用锚栓及校验结果：锚栓材质：35#745.0006.000

41、000锚栓直径: d0=M52(*优选下表)840.0005.000000有效截面积: Ae=17.58(cm2)935.0005.000000每个锚栓承拉设计值: P=334.0(kN)1030.0005.000000拉应力比: Pmax/P=0.809(*预留1520%裕量)1125.0284.972000验算结果：PassPass1220.0005.028203,533203,533511,6831316.0004.000161,920365,4531,649,657锚栓类型有效截面积Q235Q34535#1412.0004.000161,920527,3733,435,311承拉设计值

42、承拉设计值承拉设计值158.0004.000161,920689,2935,868,644AePPP163.9564.044163,701852,9958,987,151(-)(cm2)(kN)(kN)(kN)170.0003.9560852,99512,361,597M368.167114.3147.0155.2 合计80.000852,995 M4211.21156.9201.8213.0附注：M4814.73206.2265.1279.91) 烟囱内部烟气压力：M5217.58246.1316.4334.0设计运行压力：P=4.40(kPa)M5620.30284.2365.4385.7

43、烟气压力下水平总荷载：Fh=852,995 (N)M6023.62330.7425.2448.8烟气压力下底部弯矩：M= 12,361,597 (N-m)M6426.76374.6481.7508.42) 烟囱入口开口尺寸：M6830.55427.7549.9580.5开口宽度(按膨胀节宽)：9.200(m)M7234.60484.4622.8657.4开口高度(下标高EL)：3.956(m)M8043.44608.2781.9825.4开口高度(上标高EL)：25.028(m)*上表数据取自GB/T22395-2008 表49nNndMP-=0max4LOGO自自立立式式钢钢烟烟囱囱设设计计

44、计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc10/15A1 11 1 . .横横风风向向风风振振( (旋旋涡涡脱脱落落) )校校核核烟囱内径：Di=7500(mm)斯托罗哈数：St=0.2(-)等截面自立式钢烟囱(圆筒形)振型常数第1振型第2振型第3振型C1C2C3结构振型i的自振周期：Ti=0.9630.1540.055(s)3.51522.03461.701结构振型i的临

45、界风速：cri=39.0244.2683.9(m/s)(*按GB50009-2012 公式8.5.3-2)振型i的临界风压设计值：cri=0.9537.28292.30(kN/m2)(*按GB50051-2002 公式5.2.4-2)结构顶部风速：H=52.1(m/s)(*按GB50009-2012 公式8.5.3-3)结构顶部风压设计值：H=1.69(kN/m2)雷诺数：Re=2.02E+07 3.50E+06(*按GB50009-2012 公式8.5.3-1)第1振型发生横风向强风共振！1.2*H=62.5 cr1=39.0(m/s)第2振型不发生横风向强风共振！1.2*H=62.5 cr

46、2=244.2(m/s)第3振型不发生横风向强风共振！1.2*H=62.5 H则判断结果：第第1 1振振型型横横风风向向风风振振其其控控制制作作用用，需需计计算算风风振振效效应应( (弯弯矩矩和和剪剪力力) )！(*按GB50051-2002 第5.2.45.2.5条)最不利起点高度：H1=9.0(m)(*按GB50051-2002 第5.2.5条)H1/H=0.11(-)1=1.55(-)(*按GB50009-2012 表H.1.1)临界风速顺风向基本风压：cr10=0.97(kN/m2)则判断结果：增增加加烟烟囱囱壁壁厚厚已已不不经经济济不不合合理理，改改变变自自振振周周期期，避避免免横横

47、风风向向风风振振！2210 4.0hc rbzw+IgEWCHTtii22p=自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc11/15A1 12 2 . .截截面面强强度度设设计计值值结点标高腐蚀后烟温下设计值风荷载时地震荷载时稳定相关参数设计外径壁厚抗拉压弯抗剪弹性模量调整系数临界应力调整系数临界应力截面积回转半径长细比参数稳定系数NO.ELD

48、oitcft fvtEtkcrtkcrtAiixNex(-)(m)(mm)(mm)(N/mm2)(N/mm2)(N/mm2)(-)(N/mm2)(-)(N/mm2)(mm2)(cm)(-)(-)(-)180.000274.0007,52211295.0170.0206,0001.5080.31.20100.4259,562265.660.25132,153,9571.000368.0007,52211295.0170.0206,0001.5080.31.20100.4259,562265.660.25132,153,9571.000462.0007,52211295.0170.0206,000

49、1.5080.31.20100.4259,562265.660.25132,153,9571.000556.0007,52211295.0170.0206,0001.5080.31.20100.4259,562265.660.25132,153,9571.000651.0007,52211295.0170.0206,0001.5080.31.20100.4259,562265.660.25132,153,9571.000745.0007,52211295.0170.0206,0001.5080.31.20100.4259,562265.660.25132,153,9571.000840.000

50、7,53417295.0170.0206,0001.50124.01.20154.9401,461265.860.20204,727,7781.000935.0007,53417295.0170.0206,0001.50124.01.20154.9401,461265.860.20204,727,7781.0001030.0007,53417295.0170.0206,0001.50124.01.20154.9301,672276.457.88166,425,9171.0001125.0287,53417295.0170.0206,0001.50124.01.20154.9301,672276

51、.457.88166,425,9171.0001220.0007,53417295.0170.0206,0001.50124.01.20154.9301,672276.457.88166,425,9171.0001316.0007,54422295.0170.0206,0001.50160.21.20200.2383,910263.460.76192,237,3951.0001412.0007,54422295.0170.0206,0001.50160.21.20200.2383,910263.460.76192,237,3951.000158.0007,54422295.0170.0206,

52、0001.50160.21.20200.2383,910263.460.76192,237,3951.000163.9567,54422295.0170.0206,0001.50160.21.20200.2383,910263.460.76192,237,3951.000170.0007,54422295.0170.0206,0001.50160.21.20200.2519,883265.960.16265,470,8681.000附注1) 烟囱计算长度按悬臂结构，取计算长度系数=2.0，则计算长度l0=2*H；2) 材料为GB Q345在100下的特性；3) ix -烟囱筒身回转半径； ft

53、 -烟温下材料抗拉压弯强度设计值； fvt -烟温下材料抗剪强度设计值； Et -烟温下材料弹性模量； Nex -参数， -稳定系数，见GB50051-2002 附录B)1 . 1/(22lpitexAEN=oictcrtdktE=4. 0s自自立立式式钢钢烟烟囱囱设设计计计计算算书书设计依据 GB50009-2012 建筑结构荷载规范 GB50011-2010 建筑抗震设计规范 GB50017-2003 钢结构设计规范 GB50051-2002 烟囱设计规范设计/时间校对/时间审核/时间页数/总页版本项目名称xxxxxxxxxabc12/15A1 13 3 . .截截面面特特性性及及补补强强

54、柱柱强强度度计计算算柱截面：HK306X20X20X306/266柱截面积：Ac=228.8(cm2)截面回转半径：ix=117(mm)柱长度：l=21,072(mm)柱计算长度：l0=10,536(mm)柱长细比：=l0/ix=90(-) 受压构件允许长细比：=150(-)PassPass 附注：1) 柱子强度计算参考GB50017-2003，材质选用与烟囱筒壁一致；2) 烟囱筒壁腐蚀余量：=3.0(mm)3) 补强柱两端采用刚接形式，则l0=0.5*l；4) 补强柱应力见强度及稳定计算。 结点标高烟囱截面特性(仅筒身)烟囱筒身+加强柱截面特性圆环截面内径壁厚平均壁厚角度截面积偏心距惯性矩截

55、面模量截面模量惯性矩截面模量平均半径三角函数三角函数柱数偏转角柱截面积距离偏心距惯性矩截面模量截面模量回转半径回转半径不考虑开口时ELDittcAs XsIxWx1Wx2IyWyRsincosn1AcXcXtIxWx1Wx2ixiyIx=IyNo.(m)(mm)(mm)(mm)()(rad)(cm2)(mm)(cm4)(cm3)(cm3)(cm4)(cm3)(mm)(-)(-)(-)()(cm2)(mm)(mm)(cm4)(cm3)(cm3)(cm)(cm)(cm4)180.00274.0075001411.0180.03.14259601.83E+084.87E+054.87E+051.83

56、E+084.87E+053755.50.000-1.00030.00.00.0(0.0)1.83E+084.87E+054.87E+05265.6265.61.83E+08368.0075001411.0180.03.14259601.83E+084.87E+054.87E+051.83E+084.87E+053755.50.000-1.00030.00.00.0(0.0)1.83E+084.87E+054.87E+05265.6265.61.83E+08462.0075001411.0180.03.14259601.83E+084.87E+054.87E+051.83E+084.87E+05

57、3755.50.000-1.00030.00.00.0(0.0)1.83E+084.87E+054.87E+05265.6265.61.83E+08556.0075001411.0180.03.14259601.83E+084.87E+054.87E+051.83E+084.87E+053755.50.000-1.00030.00.00.0(0.0)1.83E+084.87E+054.87E+05265.6265.61.83E+08651.0075001411.0180.03.14259601.83E+084.87E+054.87E+051.83E+084.87E+053755.50.000-

58、1.00030.00.00.0(0.0)1.83E+084.87E+054.87E+05265.6265.61.83E+08745.0075001411.0180.03.14259601.83E+084.87E+054.87E+051.83E+084.87E+053755.50.000-1.00030.00.00.0(0.0)1.83E+084.87E+054.87E+05265.6265.61.83E+08840.0075002017.0180.03.14401502.84E+087.54E+057.54E+052.84E+087.54E+053758.50.000-1.00030.00.00.0(0.0)2.84E+087.54E+057.54E+05265.8265.82.84E+08935.0075002017.0180.03