30m移动通信工程钢塔单管塔设计计算书

移动通信塔单管塔计算书
2010-8-6---下午 03:34:43
基本风压(kn/m2) 0.6塔身截面圆形
地面粗糙度类别 B钢材种类Q345
基底标高(m) 0最大径厚比105
总高H(m)30强度折减系数1
塔身段数6强度设计值310
平台数量2总用钢量(t)8.4
自振周期(s) 1.3ε10.59
ξ= 2.54爬梯迎风面积(m2/m):0.1
风载及内力计算
段数1234567段高5555555顶标高hi(m)5101520253035平均标高hi'(m) 2.57.512.517.522.527.532.5 hi'/H0.0830.250.4170.5830.750.917 1.083μz11 1.074 1.196 1.296 1.382 1.458ε20.040.1650.340.540.710.8380.88βz 1.06 1.247 1.509 1.808 2.062 2.254 2.316塔身迎风面积(m2) 4.32 3.96 3.6 3.24 2.88 2.520.44馈线、爬梯迎风面积(m0.60.60.60.60.60.60平台1集中力(kn)00000 6.220平台2集中力(kn)0000 5.3400平台3集中力(kn)0000000天线1集中力(kn)0000010.210天线2集中力(kn)00008.7600天线3集中力(kn)0000000各层等效分布荷载(kn/0.880.96 1.14 1.39 1.56 1.630.25各层分布荷载集中力(k 4.38 4.78 5.72 6.977.818.17 1.25各层塔身重力(kn)21.8816.7412.1910.969.738.490.97平台、天线重力(kn)000012120各层重力(kn)24.619.514.913.724.523.3 1.1各层底面压力(kn)121.79777.662.648.924.4 1.1各层底部剪力(kn)68.964.659.854.247.425.8 1.2各层底部弯矩(kn×m)1367.51030.4716.3428.4177.232.1 3.1底部截面规格(mm)Ф1000/12Ф920/10Ф840/8Ф760/8Ф680/8Ф600/8Ф89/5
底部截面径厚比839210595857518底部截面面积(cm2)372.5285.9209.1189168.9148.813.2底部截面抵抗矩(cm3)90916434430835162804217326平均截面惯矩(cm4)401546258628156088113408793185285282线性正应力(N/mm2)150.7160.5166.6122.263.514.9118.9标准值顶部水平位移(c 1.39 5.6513.0923.3935.4147.9971.95底部附加弯矩(kn×m)31.329.123.916.68.6 2.40.2非线性计算总弯矩(kn×1398.71059.6740.3445.1185.834.6 3.3非线性计算正应力(N/m154.2165172.2126.966.516.1126.2非线性影响系数 1.02 1.03 1.03 1.04 1.05 1.08 1.06非线性计算应力比0.50.530.560.410.210.050.41
法兰计算
螺栓级别10.9级高强螺栓
标高(m)0510152025
管外径(mm)1000920840760680600
壁厚(mm)12108888
M(kn×m)1398.71059.6740.3445.1185.834.6
N(kn)121.79777.662.648.924.4
螺栓中心圆直径1190988894814734654
螺栓数量×直径60×M30分两36×M2436×M2024×M2018×M2018×M20
等效环形截面(Q235)Ф1190/7.9Ф988/9.7Ф894/7.4Ф814/5.4Ф734/4.5Ф654/5.1等效抵抗矩W(cm3)877473314613280518981688
等效ζ(n/mm2)159.4144.5160.5158.797.920.5
应力比0.80.720.80.790.490.1
螺栓间距(mm)1258678107128114
法兰宽(mm)1857060606060
法兰外径(mm)13701060960880800720
板面压力均值(n/mm2)720.320.114.67.7 1.9
弯矩系数0.12580.09820.09410.06940.0550.0639
板中单位板宽弯矩(kn)13.7714.8411.5311.53 6.91 1.59
法兰板厚度δ(mm)202020202020
加劲板尺寸(mm)-10×185×3-8×70×160-8×60×130-8×60×130-8×60×130-8×60×130。