圓形水池設(shè)計(jì)(江東水廠濃縮池)

圓形水池設(shè)計(jì)(江東水廠濃縮池)項(xiàng)目名稱(chēng)構(gòu)件編號(hào)日期設(shè)計(jì)校對(duì)審核執(zhí)行規(guī)范:《混凝土結(jié)構(gòu)通用規(guī)范》(GB55008-2021),本文簡(jiǎn)稱(chēng)《混凝土通用規(guī)范》《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》(GB50010-2010(2015年版)),本文簡(jiǎn)稱(chēng)《混凝土規(guī)范》《建筑與市政地基基礎(chǔ)通用規(guī)范》(GB55003-2021),本文簡(jiǎn)稱(chēng)《地基通用規(guī)范》《建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范》(GB50007-2011),本文簡(jiǎn)稱(chēng)《地基規(guī)范》《工程結(jié)構(gòu)通用規(guī)范》(GB55001-2021)《建筑結(jié)構(gòu)荷載規(guī)范》(GB50009-2012),本文簡(jiǎn)稱(chēng)《荷載規(guī)范》《給水排水工程構(gòu)筑物結(jié)構(gòu)設(shè)計(jì)規(guī)范》(GB50069-2002),本文簡(jiǎn)稱(chēng)《給排水結(jié)構(gòu)規(guī)范》《給水排水工程鋼筋混凝土水池結(jié)構(gòu)設(shè)計(jì)規(guī)程》(CECS138-2002),本文簡(jiǎn)稱(chēng)《水池結(jié)構(gòu)規(guī)程》鋼筋：d-HPB300;D-HRB335;E-HRB400;F-RRB400;G-HRB500;Q-HRBF400;R-HRBF500-----------------------------------------------------------------------1設(shè)計(jì)資料1.1基本信息圓形水池形式:敞口池內(nèi)液體重度10.0kN/m3浮托力折減系數(shù)1.00裂縫寬度限值0.20mm抗浮安全系數(shù)1.10水池的幾何尺寸如下圖所示:1.2荷載信息地面活荷載:10.00kN/m2活荷載組合系數(shù):0.90荷載分項(xiàng)系數(shù):自重:1.30其它恒載:1.30地下水壓:1.50其它活載:1.50荷載準(zhǔn)永久值系數(shù):頂板活荷載:0.40地面堆積荷載:0.50地下水壓:1.00溫(濕)度作用:1.00活載調(diào)整系數(shù):其它活載:1.00壁面溫差:10.0℃溫差內(nèi)力折減系數(shù):0.65混凝土線膨脹系數(shù):0.000010不考慮溫度材料強(qiáng)度折減1.3混凝土與土信息土天然重度:18.00kN/m3土飽和重度:20.00kN/m3土內(nèi)摩擦角ψ:30.0度修正后的地基承載力特征值fa=120.00kPa混凝土等級(jí):C30縱筋級(jí)別:HRB400混凝土重度:25.00kN/m3配筋調(diào)整系數(shù):1.20縱筋保護(hù)層厚度:位置頂板(mm)池壁(mm)底板(mm)上側(cè)(內(nèi)側(cè))-3535下側(cè)(外側(cè))-35402計(jì)算內(nèi)容（1）荷載標(biāo)準(zhǔn)值計(jì)算（2）抗浮驗(yàn)算（3）地基承載力計(jì)算（4）內(nèi)力及配筋計(jì)算（5）抗裂度、裂縫計(jì)算（6）混凝土工程量計(jì)算3荷載標(biāo)準(zhǔn)值計(jì)算底板:恒荷載:池壁自重:18.51kN/m2覆土自重:1.61kN/m2活荷載:地面活荷載:1.79kN/m2池壁:恒荷載:池內(nèi)水壓力:42.00kN/m2池外側(cè)土壓力(池底):3.00kN/m2活荷載:溫差作用:23.89kN.m/m地面活荷載:3.33kN/m24地基承載力驗(yàn)算:計(jì)算基礎(chǔ)底面的壓力：池壁內(nèi)壁圓面積:Aic=πR2=3.14×3.5002=38.48m2池壁外壁圓面積:At=π(R＋t)2=3.14×(3.500＋0.35)2=46.57m2池壁自重Gs=γc×As×H=25.00×8.08×5.200=1050.63kN底板自重Gb=γc×Ab×t2=25.00×56.75×0.40=567.45kN水池自重Gp=Gs＋Gb=1050.63＋567.45=1618.08kN挑出部分覆土重Gexs=γ土×(Ab－At)×(Hb－t2)=18.00×(56.75－46.57)×(0.900－0.40)=91.61kN池內(nèi)水自重Gw=pw×Aic=42.00×38.48=1616.35kN外挑部分活荷載Gqm=qm×(Ab-At)=10.00×(56.75-46.57)=101.79kN基礎(chǔ)底面的壓力pk=(Gp＋Gw＋Gexs＋Gqm)/Ab=3427.82/56.75=60.41kPa修正后的地基承載力特征值為：120.00kPapk=60.41kPa<fa=120.00kPa地基承載力滿足5抗浮驗(yàn)算:地下水位位于基底以下,無(wú)需驗(yàn)算6內(nèi)力及配筋計(jì)算:(軸力:kN彎矩:kN.m面積:mm2配筋面積:mm2/m)池壁:彎矩外側(cè)受拉為正，軸力受拉為正頂板:下側(cè)受拉為正,底板:上側(cè)受拉為正按《給水排水工程結(jié)構(gòu)設(shè)計(jì)手冊(cè)》靜力計(jì)算查表池壁的約束條件:上端自由,下端固定池壁內(nèi)力計(jì)算查表系數(shù)H2/dt=5.2002/7.350×0.35=10.51荷載組合:（1）閉水試驗(yàn)：池內(nèi)有水，池外無(wú)土（2）使用時(shí)池內(nèi)無(wú)水：池內(nèi)無(wú)水，池外有土（3）正常使用：池內(nèi)有水，池外有土閉水試驗(yàn)：基本組合:1.30×池內(nèi)水作用＋1.50×溫度作用標(biāo)準(zhǔn)組合:1.00×池內(nèi)水作用＋1.00×溫度作用準(zhǔn)永久組合:1.00×池內(nèi)水作用＋1.00×溫度作用設(shè)計(jì)值/標(biāo)準(zhǔn)值/準(zhǔn)永久值位置豎向彎矩環(huán)向彎矩環(huán)向軸力0.00H0.00/0.00/0.0029.86/19.91/19.91347.84/231.71/231.710.10H8.48/5.65/5.6531.27/20.85/20.8570.24/48.84/48.840.20H21.63/14.41/14.4133.46/22.31/22.31-18.02/-7.76/-7.760.30H31.18/20.77/20.7735.06/23.37/23.37-5.18/3.12/3.120.40H36.20/24.16/24.1635.89/23.93/23.9342.31/37.17/37.170.50H38.39/25.70/25.7036.26/24.19/24.1988.86/70.42/70.420.60H39.61/26.66/26.6636.46/24.35/24.35118.80/91.85/91.850.70H40.62/27.49/27.4936.63/24.49/24.49121.96/93.68/93.680.75H40.71/27.59/27.5936.64/24.50/24.50111.82/85.80/85.800.80H40.00/27.06/27.0636.53/24.42/24.4293.41/71.64/71.640.85H38.19/25.69/25.6936.22/24.19/24.1968.13/52.25/52.250.90H34.38/22.78/22.7835.59/23.70/23.7038.58/29.59/29.590.95H27.96/17.85/17.8534.52/22.88/22.8812.28/9.42/9.421.00H18.32/10.45/10.4532.91/21.65/21.650.00/0.00/0.00使用時(shí)池內(nèi)無(wú)水：基本組合:1.30×池外土作用＋0.90×1.50×(溫度作用＋地面活荷載)標(biāo)準(zhǔn)組合:1.00×池外土作用＋0.90×1.00×(溫度作用＋地面活荷載)準(zhǔn)永久組合:1.00×池外土作用＋1.00×溫度作用＋0.50×地面活荷載設(shè)計(jì)值/標(biāo)準(zhǔn)值/準(zhǔn)永久值位置豎向彎矩環(huán)向彎矩環(huán)向軸力0.00H-0.00/-0.00/-0.0026.87/17.92/19.91298.42/198.96/227.120.10H7.63/5.09/5.6528.15/18.76/20.8527.65/18.29/26.560.20H19.62/13.08/14.5330.14/20.10/22.33-73.13/-49.06/-48.080.30H28.21/18.81/20.8931.57/21.05/23.39-83.82/-56.35/-55.970.40H32.34/21.56/23.9632.26/21.51/23.90-63.96/-43.28/-41.200.50H33.46/22.30/24.8232.45/21.63/24.04-43.09/-29.52/-25.760.60H33.07/22.03/24.5732.38/21.59/24.00-29.53/-20.59/-15.980.70H32.31/21.51/24.0532.26/21.50/23.91-21.89/-15.48/-11.110.75H32.06/21.34/23.8732.22/21.47/23.88-18.45/-13.10/-9.240.80H31.95/21.27/23.7632.20/21.46/23.87-14.68/-10.46/-7.340.85H32.08/21.37/23.8032.22/21.48/23.87-10.37/-7.40/-5.200.90H32.55/21.71/24.0232.30/21.53/23.91-5.83/-4.16/-2.940.95H33.45/22.35/24.4832.45/21.64/23.99-1.81/-1.30/-0.921.00H34.88/23.38/25.2432.69/21.81/24.11-0.00/-0.00/-0.00正常使用：基本組合:1.30×池內(nèi)水作用＋1.30×池外土作用＋0.90×1.50×(溫度作用＋地面活荷載)標(biāo)準(zhǔn)組合:1.00×池內(nèi)水作用＋1.00×池外土作用＋0.90×1.00×(溫度作用＋地面活荷載)準(zhǔn)永久組合:1.00×池內(nèi)水作用＋1.00×池外土作用＋1.00×溫度作用＋0.50×地面活荷載設(shè)計(jì)值/標(biāo)準(zhǔn)值/準(zhǔn)永久值位置豎向彎矩環(huán)向彎矩環(huán)向軸力0.00H0.00/0.00/0.0026.87/17.92/19.91296.62/197.57/225.740.10H7.63/5.09/5.6528.15/18.76/20.8547.27/33.38/41.650.20H19.48/12.97/14.4230.12/20.08/22.31-31.71/-17.19/-16.210.30H28.06/18.69/20.7831.55/21.03/23.37-19.72/-7.05/-6.660.40H32.56/21.73/24.1332.30/21.54/23.9323.41/23.93/26.010.50H34.49/23.09/25.6132.62/21.76/24.1765.87/54.29/58.050.60H35.50/23.90/26.4432.79/21.90/24.3193.84/74.31/78.930.70H36.33/24.60/27.1432.93/22.02/24.4398.75/77.32/81.700.75H36.41/24.69/27.2232.94/22.03/24.4491.22/71.25/75.120.80H35.82/24.25/26.7432.84/21.96/24.3676.62/59.78/62.900.85H34.33/23.10/25.5332.59/21.77/24.1656.15/43.77/45.970.90H31.15/20.63/22.9532.07/21.35/23.7331.88/24.85/26.060.95H25.78/16.46/18.5831.17/20.66/23.0010.19/7.94/8.311.00H17.69/10.16/12.0229.82/19.61/21.910.00/0.00/0.00池壁配筋及裂縫、抗裂度驗(yàn)算:位置計(jì)算As配筋實(shí)際As裂縫寬度抗裂度豎向內(nèi)側(cè)700.0E14@180855.20.11---豎向外側(cè)700.0E14@180855.20.11---環(huán)向內(nèi)側(cè)700.0E14@180855.20.121.18環(huán)向外側(cè)802.1E14@1501026.30.121.18池壁的豎向最大裂縫寬度:0.11<=0.20裂縫滿足要求池壁的環(huán)向最大抗裂度:1.18<=act×ftk=1.75抗裂度滿足要求池壁的環(huán)向最大裂縫寬度:0.12<=0.20裂縫滿足要求底板內(nèi)力計(jì)算方法:按《水池結(jié)構(gòu)規(guī)程》6.2.4或6.2.5計(jì)算底板的計(jì)算半徑:R=3.675m底板的約束條件:簡(jiǎn)支+池壁彎矩荷載組合：閉水實(shí)驗(yàn)：基本組合:S=1.30×18.51＋1.30×(1616.35／56.75－1616.35／38.48)=6.50kN/m2準(zhǔn)永久組合:S=1.00×18.51＋1.00×(1616.35／56.75－1616.35／38.48)=5.00kN/m2池壁傳遞的彎矩:設(shè)計(jì)值/準(zhǔn)永久值=-18.32/-10.45kN.m/m使用時(shí)池內(nèi)無(wú)水：基本組合:1.30×自重＋1.30×覆土自重＋0.90×1.50×地面活荷載S=1.30×18.51＋1.30×1.61＋0.90×1.50×1.79=28.59kN/m2準(zhǔn)永久組合:自重＋覆土自重＋0.50×地面活荷載S=18.51＋1.61＋0.50×1.79=21.03kN/m2池壁傳遞的彎矩:設(shè)計(jì)值/準(zhǔn)永久值=-34.88/-25.24kN.m/m取兩種組合中最大值為控制內(nèi)力。底板配筋及裂縫驗(yàn)算:位置設(shè)計(jì)值/準(zhǔn)永久值計(jì)算As配筋實(shí)際As裂縫寬度徑向板中上41.54/30.96800.0E14@160962.10.10徑向板中下-0.94/0.00800.0E14@160962.10.00徑向板邊上0.00/0.00800.0E14@160962.10.00徑向板邊下-34.88/-25.24800.0E14@160962.10.08環(huán)向板中上41.54/30.96800.0E14