课程设计--盾构管片课程设计

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1、————目录————一、设计资料1.1设计数据资料··············································11.2结构尺寸及示意图··········································11.3重心计算··················································11.4计算半径··················································2二、基本使用阶段荷载计算2.1垂直荷载·····································

2、·············22.2均布荷载··················································22.3三角形侧载················································22.4自重······················································22.5拱背荷载··················································22.6拱底反力············································

3、·····2三、管片配筋计算3.1材料选择·················································43.2截面配筋计算1）截面设计-13-···············································42）截面复核···············································6一、管片接头验算4.1负弯矩接头················································74.2正弯矩接头·································

4、···············8五、顶推力验算·············································9六、心得体会················································10七、设计规范················································11八、主要参考文献··········································11九、上交材料················································11-13-盾构管片课

5、程设计一、设计资料1.1设计数据资料管片外径11.5m管片内径10.3m覆土深度20.1m土层容重14.1kN/m³饱和容重19.1kN/m³地下水位1.1m土层内摩擦角17.1°土层粘聚力24kN/㎡1.2结构尺寸及示意图1.3重心计算教师评阅：-13-盾构管片课程设计重心z=300mm1.4计算半径r=5.15+0.3=5.45m二、基本使用阶段荷载计算2.1垂直荷载q=1.1×1.41+（20.1-1.1）×（1.91-1）=18.84t/㎡2.2均布荷载p1=18.84×tan²（45-17.1/2）-2×2.4×tan（45-17.1/2）=6.73t/㎡2.3三角形侧载p2=2

6、×5.45×tan²（45-17.1/2）×0.91=5.41t/㎡2.4自重g=2.6×0.6=1.56t/㎡2.5拱背荷载G=2（1-π/4）×5.45²×0.91=11.62t/㎡2.6拱底反力Pr=18.84+1.56π+0.2146×5.45×0.91-π/2×5.45×1=16.24t/㎡计算的M和N见下表。弯矩M分布图如下：教师评阅：-13-截面内力自重q垂直直荷重q水压W均布测压p1≥测压p2地层反力K拱背荷重G每米内力0°M(t·m)23.17167.32-40.49-49.97-16.87-23.645.6078.14N（t）-4.25-10.88125.8336.68

7、9.239.38-1.19197.7615°M(t·m)20.82146.55-20.06-43.28-15.15-21.895.3586.81N（t）-3.53-3.63122.0834.228.919.06-1.13199.1830°M(t·m)14.1489.42-3.80-24.99-10.15-16.794.3562.62N（t）-1.4616.24119.1027.517.888.12-0.74207.184