课程设计--盾构管片课程设计.docVIP

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2018-05-14 发布于天津
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课程设计--盾构管片课程设计.doc

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————目录———— 设计资料 1.1设计数据资料··············································1 1.2结构尺寸及示意图··········································1 1.3重心计算··················································1 1.4计算半径··················································2 基本使用阶段荷载计算 2.1垂直荷载··················································2 2.2均布荷载··················································2 2.3三角形侧载················································2 2.4自重······················································2 2.5拱背荷载··················································2 2.6拱底反力················································· 2 管片配筋计算 3.1材料选择·················································4 3.2截面配筋计算 1）截面设计···············································4 2）截面复核···············································6 管片接头验算 4.1负弯矩接头················································7 4.2正弯矩接头················································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 盾构管片课程设计设计资料 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 19.1 kN/m3 地下水位 1.1m 土层内摩擦角 17.1° 土层粘聚力 24 kN/㎡ 1.2结构尺寸及示意图 1.3重心计算教师评阅：盾构管片课程设计重心z=300mm 1.4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） =6.73 t/㎡ 2.3三角形侧载 p2=2×5.45×tan2（45-17.1/2）×0.91=5.41 t/㎡ 2.4自重 g=2.6×0.6=1.56 t/㎡ 2.5拱背荷载 G=2（1-π/4）×5.452×0.91=11.62 t/㎡ 2.6拱底反力 Pr=18.84+1.56π+0.2146×5.45×0.91-π/2×5.45×1 =16.24 t/㎡计算的M和N见下表。弯矩M分布图如下：教师评阅：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) 23.17 167.32 -40.49 -49.97 -16.87 -23.64 5.60 78.14 N（t） -4.25 -10.88 125.83 36.68 9.23