m鋼煙囪計算書

m鋼煙囪計算書4、筒體截面參數(shù)................................................................14、鋼煙囪位移結(jié)果.............................................................1、設(shè)計資料1.1基本設(shè)計資料煙囪總高度H=60.300m煙氣溫度T=95.00℃gas煙囪底部高出地面距離:0mm夏季極端最高溫度T=40.00℃sum冬季極端最低溫度T=-4.00℃win最低日平均溫度T=-5.00℃win煙囪日照溫差△T=20.00℃基本風(fēng)壓=0.55kN/m20瞬時極端最大風(fēng)速:34.00(m/s)地面粗糙度:B類煙囪筒體幾何缺陷折減系數(shù)=0.50煙囪安全等級:二級抗震設(shè)防烈度:7度(0.10g)設(shè)計地震分組:第一組建筑場地土類別:Ⅱ類筒壁腐蝕厚度裕度:2.00mm襯里起始高度:0.00m設(shè)置破風(fēng)圈:設(shè)置破風(fēng)圈:是煙囪筒身分節(jié)參數(shù)表(1)是否計算抽力:否1.2材料信息使用部位使用部位號1筒壁鋼材1.3幾何尺寸信息煙囪總分段數(shù):18材料名稱S31603最高使用溫度(℃)密度7850.00導(dǎo)熱系數(shù)58.150煙囪筒身分段參數(shù)表編號0123456789煙囪總截面數(shù):標高(m)60.3050.3043.5041.5938.9137.1235.3232.8230.8229.0226.3024.3022.0020.500-0.00煙囪筒壁外直徑4000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.00分段高度-----6.80.68.50.00.72.00.30.00.900截面號0123456789標高0.300043.5041.5912222.02.30.30.00.500009.40煙囪筒壁外直徑(mm)4000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.004000.00分節(jié)高度(m)-----.000.0006.8002.6802.5002.0002.7202.0002.3002.0002.9004.395筒壁厚度(mm)坡度0.0000.0000.0000.0007.7430.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000-.004000.004000.00.605.8000.0000.000煙囪筒身分節(jié)參數(shù)表(2)截面編號56789標高911232828229.0226.3024.3022.0020.50009.40-0.00量(kN)8.008.008.0035.0075.0038.008.008.4038.000.008.40載(kN)0.000.000.000.000.000.000.000.000.000.000.000.000.000.00洞口數(shù)量00000000000010洞口狀矩形矩形矩形矩形矩形矩形矩形矩形矩形矩形矩形矩形矩形洞口000000000000-----0洞口000000000000-----0洞口直徑(mm)-----------------------------------------------------------------是否設(shè)置爬梯:否1.4煙囪底座設(shè)計參數(shù)煙囪底板材料:Q235(B)煙囪底板內(nèi)徑D1:3000.00mm煙囪底板外徑D2:5000.00mme地腳螺栓材料:Q235(B)地腳螺栓數(shù)量n:20c4.0mm2地腳螺栓中心線直徑D3:4500mm筋板材料:Q235(B)筋板高度hj:600.00mm蓋板材料:Q235(B)蓋板類型:環(huán)形蓋板是否有墊板:否2、計算依據(jù)《鋼結(jié)構(gòu)設(shè)計手冊》(第三版)《鋼結(jié)構(gòu)連接節(jié)點設(shè)計手冊》(第二版)3、筒體自重計算截面編號0123456789合計筒身自重表格(1)標高(m)60.3055.3050.3043.5041.5938.9137.1235.3232.8230.8229.0226.3024.3022.0020.509.40.80-0.00--筒身自重表格(2)重量(kN)0.0025.9325.9335.2631.0020.8220.8228.9126.9724.2836.6826.9731.0223.1127.7330.8144.6864.5886.3558.54688.81截面編號0123標高60.3055.3050.3043.50量(kN)0.000.000.000.00破破風(fēng)圈重----.34.344.54本節(jié)總重量(kN)0.00每節(jié)根部重量(kN)0.00456789合計41.59.91.12.32.82.8229.0226.3024.3022.0020.509.40-0.00--筒身總重量G=.008.008.008.005.00.008.008.008.408.00.00.00.008.40264.80.93.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00=967.03kN44886、動力特征計算前五階自振周期分別為:T=0.7670s1T=0.2147s2T=0.0867s3T=0.0427s4T=0.0281s5前五階振型相對位移計算結(jié)果標高(m)60.3055.3050.3043.5041.5938.9137.1235.3232.8230.8229.0226.3024.3022.0020.509.400-0.00第一振型0.86450.73260.57280.53420.48140.44650.41220.36560.32950.29780.25170.21950.18440.16280.13810.11250.07920.03840.00660第二振型0.58470.2107-0.0997-0.1307-0.1619-0.1784-0.1911-0.2019-0.2050-0.2040-0.1961-0.1857-0.1696-0.1572-0.1409-0.1215-0.0920-0.0492-0.00940第三振型0.1394-0.4989-0.6425-0.5407-0.3782-0.2664-0.1553-0.00840.09840.18360.28710.34070.37640.38500.38150.36090.30510.18480.03940第四振型-0.3018-0.8153-0.1898-0.03120.13750.22120.27380.28790.25050.18580.0486-0.0656-0.1906-0.2603-0.3256-0.3692-0.3743-0.2712-0.06610第五振型-0.6062-0.59440.70890.64910.43190.25770.0785-0.1393-0.2577-0.3082-0.2802-0.1930-0.04870.05490.17330.28130.36950.32800.090907、風(fēng)荷載計算7.1橫向風(fēng)振判斷Vcr1Vcr1=T2=0.7670×0.20=26.08m/s式中D-----2H/3高度處煙囪的外直徑2/3R=69000VD=69000×26.08×4.00=7.20×106ecr12/3Re≥1.2×V>VHcr1需要考慮橫風(fēng)向風(fēng)荷載已經(jīng)設(shè)立破風(fēng)圈，不考慮橫風(fēng)向作用7.2風(fēng)荷載標準值計算順風(fēng)向風(fēng)壓時風(fēng)荷載計算結(jié)果標高60.3055.3050.3043.5041.5938.9137.12Ro0000200020002000zB5555000v22222220232952R10.860.720.550.500.440.40Bz0.870.770.660.530.980.90z2.332.182.012.662.492.37k40661555.322.820.8229.0226.3024.3022.0020.509.40-0.00000000000000000000000000000000000000000000222222222222229418406418366-0.36.31.27.24.20.17.14.12.10.08.05.02.01.01.83.74.66.60.50.43.37.33.28.23.17.09.03.0326120177911362614400注：R——筒身截面外半徑(mm)07.3風(fēng)彎矩標準值計算風(fēng)荷載及風(fēng)彎矩標準值計算結(jié)果標高(m)60.3055.3050.3043.50Qi--27.1924.6429.51Mwki--41.598.9122.257.125.329.462.8200.829.02029.02426.3024.30.9722.0020.504.4441584.9745164923.649.408.574869.47-0.00.158643注:1、Q表示作用于每一節(jié)中心處的集中風(fēng)荷載,單位為kNiwkiii7.4考慮瞬時極端最大風(fēng)速時的風(fēng)荷載計算(只計算順風(fēng)向風(fēng)壓)瞬時極端最大風(fēng)速時風(fēng)荷載計算結(jié)果標高60.3055.3050.3043.5041.5938.91Ro000020002000zB555500v222222023295R2.012.012.012.012.012.0110.860.720.550.500.44Bz0.870.770.660.530.98z2.382.222.052.732.54k4298447.125.322.820.8229.0226.3024.3022.0020.509.40-0.0000000000000000000000000000000000000000000000022222222222222229418406418366-0010101010101010101010101010101.40.36.31.27.24.20.17.14.12.10.08.05.02.01.01.90.83.74.66.60.50.43.37.33.28.23.17.09.03.0342311605216561126811833風(fēng)荷載標準值計算結(jié)果標高(m)60.3055.3050.3043.5041.5938.91Qi--36.4532.9939.4520.2729.89Mwki--627.125.32962.82790.8229.0226.30411624.309.30460122.009.7820.50.61049.765948.809.408685-0.008.09注:1、Q表示作用于每一節(jié)中心處的集中風(fēng)荷載,單位為kNiwkiii00.0.368、地震作用及內(nèi)力計算地震作用下的剪力(kN)標高60.3第四振標高60.3第四振型第一振型4.3859.0221.3923.6324.7325.6726.4127.0228.0428.63第五振型0.31-0.07-0.50第二振型-2.93-6.35第三振型0.15-1.74-3.12-4.41-5.177070322.2424.7926.1527.4128.5229.5031.4232.71055.3-0.24050.30.920.920.730.36043.5-7.21-0.0-7.21041.50.300.0.300.610.770.820.640.09-0.35-0.59-0.75-0.78-0.74-0.50-0.22938.9-5.42137.1-4.39235.3-3.14--3.14-0.60536.3289.33232.8-5.73--5.73-4.75-3.50-2.37-1.060.324.1585230.8-1.43229.0-1.96226.3-2.04024.3-1.93022.0-1.64020.5-1.28018.7-0.3700-61.87-61.87-0.5209.40-.0029.1029.4229.4729.478.889.169.16052525.21.73.87.873.934.925.125.12地震作用下彎矩(kN.m)標高60.3第二振標高60.3第二振型0.00-14.63第三振型0.009-2.15-11.45-25.64-37.10-45.64-55.17-59.92振型組合值0418470第四振型0.00-3.02-4.22.064.269.258.11.79-1.29-5.73-8.19第五振型0.00-2.17-2.27-1.47-0.3774.344.515.370.66型0.00055.38.02050.329.9029.908.5295.70208.98244.50283.01347.28396.73455.76495.38043.5-99.39041.5-113.12938.9-130.63137.1-140.39235.3-148.29232.8-156.13230.8-157.33229.0-150.98226.3-133.79024.3-118.02022.0-96.56-80.69-96.56-80.6900.50009.40-.00544.02600.09683.10811.00975.88-59.72-32.63.04234.28-58.98-50.68-33.72-0.7549.0283.84-10.48-11.22-10.18-4.89.60-1.86-2.85-3.48-2.574.829、附加彎矩計算標高(m)60.3055.3050.3043.5041.5938.9137.1235.3232.8230.8229.0226.3024.3022.0020.509.400-0.00承載能力極限狀態(tài)風(fēng)荷載附加彎矩M(kN.m)ai0.004.8157.381.4393.70233.08259.28290.30310.94335.99364.03404.67464.76534.95575.50承載能力極限狀態(tài)地震附加M(kN.m)Eai0.006.7024.7632.7538.7745.3055.2263.842.1085.4695.93225.68251.72正常使用極限狀態(tài)風(fēng)荷載附加彎矩M(kN.m)aki0.006.5924.1931.9437.7644.0653.5961.8569.7582.4792.39211.64234.44210、荷載內(nèi)力組合荷載組合工況表組合1GkwkaS=1.0S+1.4S+1.0M組合1GkwkaSS=S=1.2S+1.4S+1.0M+0.7×1.4×組合組合2Gkwkak組合3GkwkaS=1.35S+0.6×1.4k組合3Gkwka0.7×1.4×SS=S=1.2S+1.3S+0.2×1.4×S+組合4GE組合4GEEhkwkES=1.0SES=1.0S+1.3S+0.2×1.4×S+組合5GEEhkwkES=1.2S+ES=1.2S+1.3S+0.5S+0.2×1.4組合6GEEhkEvkwkaE1組合7GEEhkEvkS=1.0S+1.3SwkaE1組合7GEEhkEvk×S+1.0MS=1.2SS=1.2S+0.5S+1.3S+0.2×1.4組合8GEEhk組合8GEEhkEvkwkaE1組合9GEEhkEvkS=1.0S+0.5SwkaE1組合9GEEhkEvk×S+1.0MwkaE2組合10S=1.0S+1.0M+1.0SGkaMaxwk組合11S=1.0S+1.0M+1.4SGkawk標高組合1組合2組合3(m)NMNMNM00000000291003510040625939270392792439810631181063133661118131414213141598171581740190174021310821872069224206925212850303043.5041.59911119019059615859635.318861418861441294500232.828029553352955377230.838134114583411515229.044438445333844599226.348845345864534659024.352550676305067709022.056657046805704765020.559861327186132807018.766466587966658896016.770472578457257951013.87498148899814810110814814954597695451099900113911080113911215967126761160126761305NMNM-.00標高60.30000055.335452945050.37015659156043.511838798387041.514246711846792222.02.30.30.00.500009.40-.0058標高(m)60.305.300.3043.5041.598.917.125.322.820803974123N(kN)04488M(kN.m)0243408039741230.8229.0226.3024.3022.0020.509.40-0.00標高(m)60.305.300.3043.5041.598.917.125.322.820.8229.0226.3024.3022.0020.509.40-0.004488N(kN)04488434948603859589150M(kN.m)069235545341326588148954511、鋼煙囪強度與穩(wěn)定計算11.1鋼煙囪強度計算截面編號0123456789標高60.305.300.3043.5041.598.917.125.322.820.8229.0226.3024.3022.0020.5000Ani--0.050.050.050.120.120.120.120.120.150.150.150.150.150.170.170.17Wni--0.020.020.020.120.120.120.120.120.140.140.140.140.140.170.170.17Ni--4580045Mi--20692423295541184445340677046132665857)--4.6444.7721.5326.4225.9229.3234.3038.1742.7739.3942.8746.59ft)--207.73207.73207.73207.73207.73207.73207.73207.73207.73207.73207.73207.73207.73207.73207.73207.73--2.238.1721.55.63468.8620.5920.6422.4309.40-.00.17.14.17.17.17.11.170393.20.73.59207.73207.73207.73207.7325.0544.874.538.3111.2鋼煙囪局部穩(wěn)定計算鋼煙囪局部穩(wěn)定驗算表(一)截面編號0123456789標高60.30.30.3043.5041.59.91.12.32.82.8229.0226.30t--00000000000Di--9696969696969696N--00088888111B--88888888000Ani--0.050.050.050.120.120.120.120.120.150.150.15Wni--0.020.020.020.120.120.120.120.120.140.140.14Ni--458Mim)--20692423295511444534N)--0.632.102.072.68055590B)--4.0115.7242.6710.5613.9816.6219.4623.7422.8725.7730.40.30.00.500009.40-.00000000000113333333002222222.15.15.17.17.17.17.14.17.17.14.14.17.17.17.17.11.17.1713265881489545164.204.534.104.554.83.56.17.633.9838.2435.2938.3241.7746.9086.6465.5696鋼煙囪局部穩(wěn)定驗算表(二)截面編號01234567標高60.30.30.3043.5041.59.91.12.32fyt)--227.06227.06227.06227.06227.06227.06227.06--0.500.500.500.500.500.500.50--0.330.340.340.280.280.280.28t)--2.062.062.062.062.062.062.06--623.77623.77623.77623.77--0.700.700.70t--8110901+NB)--4.6444.7721.53--711.2329.6110.8614.4017.1120.018922.02.30.30.00.500009.40-.00227.06227.06227.06227.06227.06227.06227.06227.06227.06227.06227.06227.06227.06.50.50.50.50.50.50.50.50.50.50.50.50.50.28.30.30.30.30.30.31.31.31.31.31.31.3106060606060606060606060606623.778.538.538.538.538.53873.28873.28873.28873.28873.28873.28873.28.92.92.92.92.92.92.92552814757099126.4225.9229.324.308.1742.779.3942.8746.592.0393.20.73.5924.5621.6324.4728.621.835.660.503.196.0740.27.035.4861.5511.3鋼煙囪整體穩(wěn)定性計算截面位置底部標高Abi0.17kWbi0.17A0計算長0W0長細比85.66N穩(wěn)定0.650NEx48525NiM)?N/(mm2)ftN/(mm2)Mim)6?)84.57ft)207.73t40.719.403.000.14890.11029769545279.61207.73通過(洞(12、考慮瞬時極端最大風(fēng)速下驗算結(jié)果標高60.3055.3050.3043.5041.5938.9137.1235.3232.8230.8229.0226.3024.3022.0020.50000Ani--0.05610.05610.05610.12520.12520.12520.12520.12520.15020.15020.15020.15020.15020.17510.17510.17510.1751Wni--0.02490.02490.02490.12450.12450.12450.12450.12450.14910.14910.14910.14910.14910.17370.17370.17370.1737Ni--6044448864Mi)--2324283432723687434948605471588163856958812)--4.3742.6820.3925.0024.4827.6832.4136.0840.4537.2640.5444.0749.24fy)--235.00235.00235.00235.00235.00235.00235.00235.00235.00235.00235.00235.00235.00235.00235.00235.00235.00--6.864.716.24.428.6820.959.40-.000.14890.17510.17510.11020.17370.1737915088.5267.96.42235.00235.00235.007.6728.922.09213、鋼煙囪底座計算13.1煙囪底板厚度計算9.3254筒壁外側(cè)為三邊支撐板兩端與自由邊相鄰的邊長度b(m)M(kN.m/m)max筒壁內(nèi)側(cè)為一邊支撐板一邊支撐板C(m)M(kN.m/m)max底板厚度t(mm)0.5240.5000.10947.82044.40.24046.16543.7底板厚度取較大結(jié)果且要大于14mm13.2地腳螺栓直徑計算單個地腳螺栓的拉力(k