1、建筑给排水课程设计计算书建筑给排水课程设计 设计计算书姓 名: 吴新楷 学 院 : 建工学院 专 业、班级: 给水排水 112 指 导 老 师: 薛向东 2014年06月06日三、建筑给排水设计计算书3.1室内给水系统的计算3.1.1低区给水管网水力计算3.1.1.1住宅给水计算根据建筑给排水设计规范按以下公式计算: 其中 计算管段的设计秒流量,单位,L/s; 计算管段的卫生器具当量总数; U 计算管段的卫生器具给水当量同时出流概率,%。3.1.1.2商铺给水计算式中根据建筑物用途确定的系数低区给水管网管段水力计算见表3-1,计算草图见下图3-1:图3-1 低区水力计算简图低区给水管水力计算表
2、:顺序编号管段编号卫生器具卫生器具名称数量、当量当量总数设计秒流量q(L/s)DN(mm)给水钢管vv(m/s)单阻i(kpa/m)管长(m)沿程水头损失(kpa)当量洗脸盆洗手盆淋浴器洗涤盆坐便器洗衣机(n/N)0.750.50.7510.51123456789101412101n/N1/1.010.2200.620.72711.548.39 212n/N1/0.51/1.01.50.3200.931.531.792.74 323n/N1/0.751/0.51/1.02.250.32 200.991.732.23.81 434n/N1/0.751/0.751/0.51/1.030.36 20
3、1.122.141.783.81 5413n/N1/0.751/0.751/1.01/0.51/1.040.42 250.790.8212.1910.00 656n/N1/1.01.00.20 200.620.7277.525.47 76-7n/N1/0.751/1.01.750.35 201.092.040.851.73 878n/N1/0.751/0.51/1.02.250.32 200.991.733.035.24 9835n/N1/0.751/0.751/0.51/1.030.36 201.122.146.6214.17 10359n/N2/1.52/1.52/1.01/1.050.4
4、7 250.790.821.561.28 113512n/N1/0.751/0.751/0.520.30 200.931.531.392.13 121211n/N1/0.751/0.51.250.25 200.781.090.840.92 131110n/N1/0.750.750.15 150.882.082.755.72 14913n/N2/1.52/1.51/1.02/1.01/1.060.51 250.961.170.780.91 1513-14n/N3/2.253/2.252/2.03/1.52/2.0100.67 251.261.972.8055.53 1614-15n/N6/4.5
5、6/4.54/4.06/34/4.0200.97 321.020.8266.955.74 1717-16n/N1/0.50.50.21 200.650.81.541.23 1816-15n/N1/0.51/0.51.00.30 200.931.530.681.04 1915-18n/N6/4.52/1.06/4.54/4.08/4.04/4.0221.05 321.111.0492.372.49 2023-22n/N1/1.010.2200.620.7271.130.82 2122-21n/N1/0.51/1.01.50.3200.931.532.113.23 2221-20n/N1/0.75
6、1/0.51/1.02.250.32 200.991.732.163.74 2321-19n/N1/0.751/0.751/0.51/1.030.36 201.122.141.272.72 2419-24n/N1/0.751/0.751/1.01/0.51/1.040.42 250.790.8212.169.97 2524-25n/N2/1.52/1.52/2.02/1.02/2.080.61 252.731.642.8054.60 2625-26n/N4/3.04/3.04/4.04/2.04/4.0160.88 320.930.7556.955.25 2726-18n/N4/3.02/1.
7、04/3.04/4.06/3.04/4.0180.96 321.010.8871.351.20 2828-27n/N1/0.50.50.53 2511.262.312.91 2927-29n/N1/0.51/0.510.75 320.790.5620.980.55 3029-30n/N6/4.51/0.56/4.54/4.07/3.54/4.0211.01 321.060.8874.1053.64 3134-33n/N1/0.50.50.53 2511.261.872.36 3233-32n/N1/0.51/0.510.75 320.790.5622.761.55 3332-31n/N1/0.
8、52/1.01.50.92 320.970.823.683.02 3431-30n/N2/1.02/1.021.06 321.111.0670.350.37 3530-18n/N6/4.54/2.06/4.54/4.010/5.04/4.0241.14 321.21.221.92.32 3618-35n/N16/1216/1212/1216/812/12561.73 500.930.454.562.05 总水头损失为132.62kp,3.1.2高区给水管网水力计算 高区给水管水力计算见表3-2,计算草图见下图3-2:高区给水管水力计算表:顺序编号管段编号卫生器具卫生器具名称数量、当量当量洗脸盆
9、洗手盆淋浴器洗涤盆坐便器洗衣机(n/N)0.750.50.7510.5112345678910-1n/N-1/1.021-2n/N-1/0.51/1.032-3n/N-1/0.75-1/0.51/1.043-4n/N1/0.75-1/0.75-1/0.51/1.054-14n/N1/0.75-1/0.751/1.01/0.51/1.065-6n/N-1/1.076-7n/N1/0.75-1/1.087-8n/N1/0.75-1/0.51/1.098-13n/N1/0.75-1/0.75-1/0.51/1.01013-9n/N2/1.5-2/1.5-2/1.01/1.01110-11n/N-1/
10、0.75-1211-12n/N-1/0.75-1/0.5-1312-13n/N1/0.75-1/0.75-1/0.5-149-14n/N2/1.5-2/1.51/1.02/1.01/1.01514-15n/N3/2.25-3/2.252/2.03/1.52/2.01615-16n/N6/4.5-6/4.54/4.06/3.04/4.01716-17n/N9/6.75-9/6.756/6.09/4.56/6.01817-18n/N12/9.0-12/9.08/8.012/6.08/8.01918-19n/N15/11.25-15/11.2510/1015/7.510/102019-20n/N18
11、/13.5-18/13.512/1218/912/122120-33n/N21/15.75-21/15.7514/1421/10.514/142225-24n/N-1/1.02324-23n/N-1/0.51/1.02423-22n/N-1/0.75-1/0.51/1.02522-21n/N1/0.75-1/0.75-1/0.51/1.02621-26n/N1/0.75-1/0.751/1.01/0.51/1.02726-27n/N2/1.5-2/1.52/2.02/1.02/2.02827-28n/N4/3.0-4/3.04/4.04/2.04/4.02928-29n/N6/4.5-6/4.
12、56/6.06/3.06/6.03029-30n/N8/6.0-8/6.08/8.08/4.08/8.03130-31n/N10/7.5-10/7.510/1010/510/103231-32n/N12/9.0-12/9.012/1212/612/123332-33n/N14/10.5-14/10.514/1414/714/143433-34n/N35/26.25-35/26.2528/2835/17.528/283534-35n/N56/42-56/4242/4256/2842/42接上表:当量总数设计秒流量q(L/s)DN(mm)给水钢管v(m/s)单阻i(kpa/m)管长(m)沿程水头损
13、失(kpa)1014151617181910.2200.620.72711.548.39 1.50.3200.931.531.792.74 2.250.32 200.991.732.23.81 30.36 201.122.141.783.81 40.42 250.790.8212.1910.00 10.20 200.620.7277.525.47 1.750.35 201.092.040.851.73 2.250.32 200.991.733.035.24 30.36 201.122.146.6214.17 50.47 250.790.821.561.28 0.750.15 150.882.0
14、82.755.72 1.250.25 200.781.090.840.92 20.30 200.931.531.392.13 60.51 250.961.170.780.91 100.67 251.261.972.8055.53 200.97 321.020.8262.8052.32 301.21 321.281.372.813.85 401.41 401.120.8972.82.51 501.60 401.271.142.8053.20 601.77 401.411.42.8053.93 701.93 500.920.431.540.66 10.2200.620.7272.371.72 1.
15、50.3200.931.533.625.54 2.250.32 200.991.731.232.13 30.36 201.122.141.984.24 40.42 250.790.821.351.11 80.61 251.151.642.8054.60 160.88 320.930.7552.8052.12 241.11 321.061.162.813.26 321.30 401.030.7692.82.15 401.48 401.170.9852.8052.76 481.64 401.31.22.8053.37 561.80 401.431.442.343.37 1262.71 501.27
16、0.8092.742.22 1963.52 501.651.362.453.33 总水头损失为149.21kp,3.2室内排水系统的计算(1)排水设计秒流量计算公式:式中 计算管段的污水设计秒流量(L/s); 计算管段的卫生器具排水当量总数; 根据建筑物的用途而定的系数,住宅卫生间=1.5,商场卫生间=2.0; 计算管段上最大的一个卫生器具的排水流量(L/s)。 (2)排水支管水力计算:排水支管计算草图如下(其中wL-1,wL-2,WL-3计算简图相同,FL-1,FL-2,FL-5计算简图相同,FL-3,FL-6计算简图相同,FL-4,FL-7计算简图相同):排水支管水力计算表:住宅区排水支管
17、水力计算立管编号管段编号卫生器具卫生器具名称数量、当量当量总数设计秒流量q(L/s)管径(mm)坡度i备注当量洗脸盆淋浴器厨房洗菜盆坐便器洗衣机(n/N)Np=0.75Np=0.45Np=3.00Np=4.5Np=1.50WL-10-1n/N14.51.88 1000.026FL-10-1n/N10.750.41 500.0261-2n/N111.20.45 500.026FL-30-1n/N131.81 750.026FL-40-1n/N11.51.22 750.026(2)排水立管水力计算:排水立管水力计算表如下:住宅区排水立管水力计算立管编号卫生器具卫生器具名称数量、当量当量总数设计秒流
18、量q(L/s)管径(mm)备注当量洗脸盆淋浴器厨房洗菜盆坐便器洗衣机(n/N)Np=0.75Np=0.45Np=3.00Np=4.5Np=1.50PL-1n/N940.52.65 75PL-2n/N9910.80.84 75PL-3n/N9271.94 75pl-4n/N913.51.16 75(3)排水横干管坡度PL-1坡度0.05,PL-2坡度0.005,PL-3坡度0.025,pl-4坡度0.02。(4)通气管计算根据规范可知,通气管管径取75mm。3.3 屋面雨水排水系统计算本建筑雨水排水系统采用外排水方式。雨水通过雨水斗、连接管、立管及埋地横管等在地下一层排出室外,接入市政雨水管道系
19、统。雨水管道采用UPVC管。(1)降雨强度该建筑位于杭州,查建筑给排水设计手册可得:降雨强度为=418L/(S)其中t=5min(2)划分汇水区域根据屋面结构,划分为14个汇水区域,每个区域汇水面积为,。(3)雨水立管的布置雨水量的计算根据公式: 则每块汇水区域流量为: L/S选用单斗系统,选取87式雨水斗,每个汇水区域布置一根立管,管径100,取雨水斗DN100(3)连接管连接管的管径与雨水斗的管径相同, 均为d=100mm。(4)排出管排出管管径应不小于立管管径,排出管管径选用d=100mm 3.4 室内消火栓系统计算3.4.1消火栓的布置(1)消火栓的间距应保证同层任何部位有2个消火栓的水枪充实水柱同时到达。水带长度取20m,展开时的弯曲折减系数C取0.8,消火栓的保护半径为:(2)水枪喷嘴处所需的水压查表,水枪喷口直径选19mm,水枪系数值为0.0097;充实水柱,选=12m,水枪实验系数为1.21。水枪喷嘴处所需水压(3)水枪喷嘴的出流量喷口直径19mm的水枪水流特性系数B为1.577=5.2L/S5.0L/S(4) 水带阻力19mm水枪配65mm水带,衬胶水带阻力较小。65mm水带阻力系数为0.00172.水带阻力损失:(5)消火栓口所需的水压3.4.2 消火栓管道系统计算
copyright@ 2008-2022 冰豆网网站版权所有
经营许可证编号:鄂ICP备2022015515号-1