桥梁毕业设计公开答辩ppt课件.ppt

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1、内蒙古工业大学本科毕业设计答辩设计题目：套马河1桥上部结构设计指导老师：王雪枫、崔亚楠、王岚答辩者：贾永杰答辩时间：2013年6月20号目录第一章水文计算1.1设计水位的确定1.2桥孔设计1.2.1孔径计算1.2.2墩台冲刷计算1.3桥梁方案比选第二章预应力混凝土T型梁桥设计2.1截面几何特性计算2.2受力计算2.2.1恒载内力计算2.2.2主梁活载横向分布系数计算2.2.3活载内力计算2.2.4主梁内力组合2.3预应力钢筋面积的估算及其布置2.3.1估算预应力钢筋面积2.3.2预应力钢筋布置2.4主梁截面几何特性计算2.5持久状况截面承载能力极限状态计算2.5.

2、1正截面强度计算2.5.2斜截面承载力计算2.6预应力损失估算2.7应力验算2.7.1中梁短暂状况的正应力验算2.7.2边梁短暂状况的正应力验算2.7.3持久状况的正应力验算2.7.4持久状况下的混凝土主应力验算2.8抗裂性验算2.8.1作用短期效应组合作用下的正截面抗裂验算2.8.2作用短期效应组合作用下的斜截面抗裂验算2.9主梁变形计算2.10锚固区承压计算2.11概预算第一章水文计算1.1水文计算1.1.1流速设计水位的确定根据设计流量通过假定水位确定设计水位设计流量Qp=375m3/s假定设计水位Hp=1403.00m桩号河床标高水深平均水深高差间距湿周过

3、水面积合计6345.001403.000.006349.001402.850.150.0750.1544.000.36360.001402.440.560.3550.411111.013.9056370.001402.340.660.610.11010.006.16380.001402.240.760.710.11010.007.16395.001402.180.820.790.061515.0011.856400.001402.160.840.830.0255.004.156420.001402.080.920.880.082020.0017.66440.001

4、402.140.860.890.062020.0017.86445.001402.140.860.86055.004.36460.001402.10.90.880.041515.0013.2184.60Ac6470.001402.050.950.9250.051010.009.256480.00140210.9750.051010.009.75200.03Xc6495.001401.891.111.0550.111515.0015.8256500.001401.851.151.130.0455.005.656520.001401.641.361.2550.2120

5、20.0025.16540.001401.661.341.350.022020.00276545.001402.050.951.1450.3955.025.725河槽部分nc=0.05Rc=0.922891062mVc=1.325718709m/sQc=244.7343022m3/s(Qc-Qp)/Qp=0.35＞0.05不满足要求假定设计水位Hp=1403.25m桩号河床标高水深平均水深高差间距湿周过水面积合计6345.001403.250.006349.001402.850.40.20.444.020.86360.001402.440.810.6050.411

6、111.016.6556370.001402.340.910.860.11010.008.66380.001402.241.010.960.11010.009.66395.001402.181.071.040.061515.0015.66400.001402.161.091.080.0255.005.46420.001402.081.171.130.082020.0022.66440.001402.141.111.140.062020.0022.86445.001402.141.111.11055.005.556460.001402.11.151.130.0415

7、15.0016.95234.10Ac6470.001402.051.21.1750.051010.0011.756480.0014021.251.2250.051010.0012.25200.05Xc6495.001401.891.361.3050.111515.0019.5756500.001401.851.41.380.0455.006.96520.001401.641.611.5050.212020.0030.16540.001401.661.591.60.022020.00326545.001402.051.21.3950.3955.026.975河槽部分

8、nc=0.