圓形水池設(shè)計(jì)(商貿(mào)城檢查井17米)

圓形水池設(shè)計(jì)(商貿(mào)城檢查井17米)項(xiàng)目名稱構(gòu)件編號日期設(shè)計(jì)校對審核執(zhí)行規(guī)范:《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》(GB50010-2010),本文簡稱《混凝土規(guī)范》《建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范》(GB50007-2011),本文簡稱《地基規(guī)范》《建筑結(jié)構(gòu)荷載規(guī)范》(GB50009-2012),本文簡稱《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),本文簡稱《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),本文簡稱《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:有蓋池內(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荷載信息頂板活荷載:30.00kN/m2地面活荷載:20.00kN/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度地基承載力特征值fak=300.00kPa基礎(chǔ)寬度和埋深的地基承載力修正系數(shù)ηb=1.00、ηd=1.00混凝土等級:C30縱筋級別: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))353535下側(cè)(外側(cè))3535402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)算頂板:恒荷載:頂板自重:6.25kN/m2覆土自重:24.30kN/m2活荷載:頂板活荷載:30.00kN/m2地面活荷載:20.00kN/m2底板:恒荷載:頂板自重+池壁自重:109.63kN/m2覆土自重:24.30kN/m2活荷載:頂板活荷載:30.00kN/m2地面活荷載:20.00kN/m2池壁:恒荷載:池內(nèi)水壓力:50.00kN/m2池外側(cè)土壓力(池頂):9.60kN/m2池外側(cè)土壓力(地下水位處):90.00kN/m2池外側(cè)土壓力(池底):95.33kN/m2活荷載:池外水壓力(池底):16.00kN/m2溫差作用:23.89kN.m/m地面活荷載:6.67kN/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=3.14×2.0002=12.57m2池壁外壁圓面積:At=π(R＋t)2=3.14×(2.000＋0.35)2=17.35m2頂板自重Gt=γc×At×t1=25.00×17.35×0.25=108.43kN池壁自重Gs=γc×As×H=25.00×4.78×15.000=1793.65kN底板自重Gb=γc×Ab×t2=25.00×17.35×0.40=173.49kN水池自重Gp=Gt＋Gs＋Gb=108.43＋1793.65＋173.49=2075.58kN覆土重Gc=psv×At=24.30×17.35=421.59kN池內(nèi)水自重Gw=pw×Aic=50.00×12.57=628.32kN頂板活荷載Gq=qk×At=30.00×17.35=520.48kN地面活荷載Gq=qm×At=20.00×17.35=346.99kN基礎(chǔ)底面的壓力pk=(Gp＋Gw＋Gc＋Gq)/Ab=3992.96/17.35=230.15kPa基礎(chǔ)寬度大于3m或埋置深度大于0.5m，需修正承載力特征值計(jì)算地基承載力特征值修正值：fa=fak＋ηbγ(b-3)＋ηdγm(d-0.5)水池底板底下的土的重度γ=γ飽和－γ水=20.00-10.00=10.00kN/m3水池底板底以上土的加權(quán)平均重度γm=[γ土×Hw＋(γ飽和－γ水)×(Hb－Hw)]／Hb=[18.00×15.000＋(20.00－10.00)×(17.000－15.000)]／17.000=17.06kN/m3fa=300.00＋1.00×10.00×(4.700－3)＋1.00×17.06×(17.000－0.5)=598.47kPapk=230.15kPa<fa=598.47kPa地基承載力滿足5抗浮驗(yàn)算:水池自重Gp=2075.58kN覆土重Gc=421.59kN總自重W=Gp＋Gc=2497.17kN池體浸入水中高度h=2.00m水池底面積Ab=17.35m2浮托力折減系數(shù)ηfw=1.00總浮力F=ηfwγ水hAb=1.00×10.00×2.00×17.35=346.99kNW/F=7.20>Kf=1.10,抗浮驗(yàn)算滿足。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》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=15.0002/4.350×0.35=147.78≥56,按56查表。荷載組合:（1）閉水試驗(yàn)：池內(nèi)有水，池外無土（2）使用時(shí)池內(nèi)無水：池內(nèi)無水，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0.00H0.00/0.00/0.0029.86/19.91/19.91349.71/233.14/233.140.10H25.33/16.89/16.8934.08/22.72/22.7283.96/57.42/57.420.20H37.09/24.72/24.7236.04/24.03/24.03-0.29/2.71/2.710.30H36.62/24.41/24.4135.96/23.98/23.9844.15/33.79/33.790.40H35.83/23.89/23.8935.83/23.89/23.8958.50/44.80/44.800.50H35.83/23.89/23.8935.83/23.89/23.8970.55/54.27/54.270.60H35.83/23.89/23.8935.83/23.89/23.8984.82/65.25/65.250.70H35.83/23.89/23.8935.83/23.89/23.89101.93/78.41/78.410.75H35.83/23.89/23.8935.83/23.89/23.89111.54/85.80/85.800.80H38.76/26.14/26.1436.32/24.26/24.26118.33/91.02/91.020.85H41.68/28.39/28.3936.81/24.64/24.64114.37/87.98/87.980.90H43.14/29.51/29.5137.05/24.82/24.8288.36/67.97/67.970.95H34.37/22.76/22.7635.59/23.70/23.7037.89/29.15/29.151.00H0.73/-3.11/-3.1129.98/19.39/19.390.00/0.00/0.00使用時(shí)池內(nèi)無水：基本組合:1.30×池外土作用＋1.50×地下水作用＋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＋1.00×地下水作用＋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×地下水作用＋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/-0.0026.87/17.92/19.91268.02/175.90/205.010.10H22.80/15.20/16.8930.67/20.45/22.72-13.34/-14.17/-3.710.20H33.38/22.25/24.7232.44/21.62/24.03-131.35/-95.32/-91.430.30H32.96/21.97/24.4132.37/21.58/23.98-133.54/-99.27/-93.350.40H32.25/21.50/23.8932.25/21.50/23.89-162.81/-121.27/-115.340.50H32.25/21.50/23.8932.25/21.50/23.89-193.73/-144.34/-138.540.60H32.25/21.50/23.8932.25/21.50/23.89-223.49/-166.69/-160.890.70H32.25/21.50/23.8932.25/21.50/23.89-260.63/-194.55/-188.570.75H31.76/21.15/23.6032.17/21.44/23.84-281.04/-209.87/-203.840.80H25.19/16.22/18.7331.07/20.62/23.03-294.94/-220.32/-214.320.85H18.12/10.94/13.5729.89/19.74/22.17-282.77/-211.27/-205.760.90H14.59/8.30/10.9929.31/19.30/21.74-217.16/-162.28/-158.180.95H36.26/24.49/26.7632.92/22.00/24.37-92.74/-69.31/-67.601.00H117.96/85.56/86.3946.53/32.18/34.30-0.00/-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＋1.50×地下水作用＋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＋1.00×地下水作用＋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×地下水作用＋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0.00H0.00/0.00/0.0026.87/17.92/19.91268.02/175.90/205.010.10H22.80/15.20/16.8930.67/20.45/22.720.80/-3.29/7.160.20H33.38/22.25/24.7232.44/21.62/24.03-103.07/-73.57/-69.680.30H32.96/21.97/24.4132.37/21.58/23.98-91.12/-66.64/-60.730.40H32.25/21.50/23.8932.25/21.50/23.89-106.26/-77.77/-71.840.50H32.25/21.50/23.8932.25/21.50/23.89-123.18/-90.08/-84.280.60H32.25/21.50/23.8932.25/21.50/23.89-138.66/-101.44/-95.640.70H32.25/21.50/23.8932.25/21.50/23.89-158.70/-116.14/-110.160.75H31.76/21.15/23.6032.17/21.44/23.84-169.49/-124.07/-118.030.80H28.11/18.47/20.9831.56/20.99/23.40-176.61/-129.30/-123.290.85H23.97/15.44/18.0730.87/20.49/22.92-168.40/-123.30/-117.780.90H21.91/13.92/16.6130.52/20.24/22.67-128.80/-94.31/-90.210.95H34.80/23.36/25.6332.67/21.81/24.18-54.85/-40.16/-38.451.00H82.86/58.56/59.3940.68/27.68/29.800.00/0.00/0.00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@180855.20.17---豎向外側(cè)1106.7E16@1501340.40.17---環(huán)向內(nèi)側(cè)700.0E14@180855.20.121.18環(huán)向外側(cè)804.7E14@1501026.30.121.18池壁的豎向最大裂縫寬度:0.17<=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裂縫滿足要求頂板內(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)算頂板的計(jì)算半徑:R=2.175m頂板的約束條件:周邊固定荷載組合:基本組合:1.30×自重＋1.30×覆土自重＋0.90×(1.50×頂板活荷載＋1.50×地面活荷載)S=1.30×6.25＋1.30×24.30＋0.90×(1.50×30.00＋1.50×20.00)=107.22kN/m2準(zhǔn)永久組合:自重＋覆土自重＋0.40×頂板活荷載＋0.50×地面活荷載S=6.25＋24.30＋0.40×30.00＋0.50×20.00=52.55kN/m2頂板配筋及裂縫驗(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36.98/18.13504.4E12@180628.30.13徑向板邊-63.40/-31.07885.6E14@1501026.30.10環(huán)向板中36.98/18.13504.4E12@180628.30.13環(huán)向板邊-10.57/-5.18500.0E12@180628.30.04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=2.175m底板的約束條件:周邊固定荷載組合：使用時(shí)池內(nèi)無水：基本組合:1.30×自重＋1.30×覆土自重＋0.90×(1.50×頂板活荷載＋1.50×地面活荷載)S=1.30×109.63＋1.30×24.30＋0.90×(1.50×30.00＋1.50×20.00)=241.61kN/m2準(zhǔn)永久組合:自重＋覆土自重＋0.40×頂板活荷載＋0.50×地面活荷載S=109.63＋24.30＋0.40×30.00＋0.50×20.00=155.93kN/m2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83.34/53.79800.0E14@160962.10.17徑向板中下0.00/0.00800.0E14@160962.10.00徑向板邊上0.00/0.00800.0E14@160962.10.00徑向板邊下-142.87/-92.211166.2E18@18014