金石滩吊桥计算书

大连市金石滩滨海路桥设计计算书受大连市金石滩渡假区管委会的委托，我院进行了金石滩滨海路悬索桥的设计。桥梁方案梗概由业主确定。本文为该桥的设计计算书。一. 设计依据：（一） 设计、施工规范：1、城市桥梁设计准则CJJ 11-932、公路桥涵设计通用规范JTJ 021-893、城市桥梁设计荷载标准CJJ 77-984、公路桥涵地基与基础设计规范JTJ 024-855、公路桥涵设计规范合定本，19896、公路钢筋混凝土及预应力混凝土桥涵设计规范JTJ025-867、公路桥涵施工设计规范JTJ 041-89等相应设计规范（二）甲方提供的文件1. 桥位地形图2. 桥位地形纵断图二. 设计标准1 设计荷载：桥面人群荷载：3.5kN/m2；2 桥面宽度：人行道宽度：2x1.5=3m；3 基本风压：500Pa；4 地震烈度：7度；5 计算温度：季节温差50； 三. 结构设计概述金石滩滨海路桥主桥为自锚式混凝土悬索桥。主桥长108米，引桥长90米，全桥长198米，主桥跨径为24+60+24米，矢跨比为1:7.25。引桥为钢筋砼连续箱梁，跨度为3x15米。主梁采用混凝土连续梁，梁高1米。索塔为钢筋混凝土门式塔架，塔高27米，双塔双索面结构。 混凝土 桥塔 40号混凝土 墩桩 30号混凝土 主桥主梁及横梁 50号混凝土 引桥主梁 30号混凝土 主缆索采用由313根7镀锌高强钢丝组成。钢丝的极限强度b=1670Mpa,缆索采用工厂制造，缆索两端采用冷铸锚具，在端部主索套筒内设减震器。吊杆采用37根5镀锌高强钢丝组成的成品索，下端采用冷铸锚具，上端采用热铸锚具。吊杆上端通过索夹固定在主缆上，吊杆下端锚于主梁上，主梁上吊杆间距为3米。主缆、吊索外的聚乙烯护套可根据业主需要选择色彩，增加桥梁的美观性。 所有基础均采用钻孔桩基础。 四. 受力分析1 计算模型纵向整体受力计算按平面杆系结构来分析。单元和节点的具体编号见附图。2 荷载及其组合计算荷载如下： 1）自重 2）人群（3.5kN/m2）3）汽车 汽204)整体温差：降温30；升温205索塔日照温差56桥面日照温差 +5荷载组合如下： 组合：恒载汽车人群组合：恒载+汽车+人群砼收缩+砼徐变+温度影响力 3 主梁内力计算主桥、引桥内力如表一、二所示.4.主缆内力计算依公式H =ql2 /8f 得到主缆的水平力： 则单根主缆的最大拉力为 T（HSec38 O）/2=（8941.269）/2=567 T选用的313束7的平行钢丝，其破断力为18910KN.则安全系数为：n18910/56703.34 3 ，满足要求。5.吊索内力计算吊索拉力 T300KN，采用37束5的平行钢丝，其破断力为1140KN则安全系数为：n1140/3003.8 3 ，满足要求。6主桥主梁钢筋计算M14345KN.M经计算，需配2x28根32的钢筋。主梁裂缝：0.08980.1,满足要求。表一 主桥内力:- 单元号 最大轴力 剪力 弯矩 最小轴力 剪力 弯矩 - 1 -3235.5 588.5 .0 -9398.3 763.2 .0 1 -3219.4 328.0 1347.5 -9360.9 425.6 826.0 2 -3219.4 328.0 1347.5 -9360.9 425.6 826.0 2 -3205.6 139.6 1973.4 -9326.5 -679.7 456.1 3 -3220.0 320.3 1973.4 -9368.8 -151.0 456.1 3 -3206.7 162.4 2410.0 -9335.8 115.1 769.7 4 -3206.7 162.4 2410.0 -9335.8 115.1 769.7 4 -3189.5 -164.0 5541.7 -9301.8 -790.3 737.2 5 -3204.1 17.6 5541.7 -9344.0 -58.3 -2187.0 5 -3176.4 -282.2 6410.0 -9324.4 -313.0 -2549.9 6 -3176.4 -282.2 6410.0 -9324.4 -313.0 -2549.9 6 -3156.1 -573.2 6490.2 -9304.9 -556.8 -3204.4 7 -3170.5 -391.8 6490.2 -9347.3 -27.2 -3204.4 7 -3155.4 -644.3 6129.9 -9327.7 -271.0 -3428.8 8 -3155.4 -644.3 6129.9 -9327.7 -271.0 -3428.8 8 -3133.2 -778.4 4087.8 -9308.2 -514.8 -4020.1 9 -3147.7 -597.4 4087.8 -9350.6 15.0 -4020.1 9 -3120.0 -932.0 5291.1 -9331.1 -228.8 -4180.9 10 -3120.0 -932.0 5291.1 -9331.1 -228.8 -4180.9 10 -3094.5 -1196.7 4164.6 -9311.6 -472.6 -4708.6 11 -3109.0 -1016.0 4164.6 -9354.0 56.9 -4708.6 11 -3080.4 -1312.7 2975.1 -9334.5 -186.9 -4806.4 12 -3080.4 -1312.7 2975.1 -9334.5 -186.9 -4806.4 12 -3056.2 -1605.5 1222.5 -9315.0 -430.7 -5271.0 13 -3070.0 -1433.1 1222.5 -9355.4 75.2 -5271.0 13 -3051.1 -1733.3 -752.9 -9335.9 -168.6 -5341.3 14 -3051.1 -1733.3 -752.9 -9335.9 -168.6 -5341.3 14 -3029.9 -1938.8 -3671.3 -9316.4 -412.4 -5778.4 15 -3041.3 -1796.5 -3671.3 -9349.9 5.7 -5778.4 15 -3017.6 -2101.1 -6277.8 -9330.4 -238.2 -5953.3 16 -3017.6 -2101.1 -6277.8 -9330.4 -238.2 -5953.3 16 -3001.5 -2354.3 -9478.2 -9310.9 -483.5 -6495.1 17 -3271.3 1087.7 -8556.5 -9443.3 1196.7 -6624.7 17 -3258.9 932.9 -7036.5 -9421.9 931.3 -5022.4 18 -3258.9 932.9 -7036.5 -9421.9 931.3 -5022.4 18 -3246.6 778.1 -5749.2 -9400.6 662.9 -3821.6 19 -3258.5 925.6 -5749.2 -9435.1 1094.1 -3821.6 19 -3246.1 770.8 -4472.8 -9413.7 828.8 -2373.7 20 -3246.1 770.8 -4472.8 -9413.7 828.8 -2373.7 20 -3233.7 616.0 -3429.3 -9392.4 560.4 -1327.3 21 -3248.0 794.8 -3429.3 -9434.2 1082.3 -1327.3 21 -3235.6 640.0 -2349.7 -9411.4 781.2 -91.6 22 -3235.6 640.0 -2349.7 -9411.4 781.2 -91.6 22 -3223.2 485.2 -1503.1 -9383.7 436.8 -167.6 23 -3238.0 673.6 -1503.1 -9427.0 987.0 -167.6 23 -3225.6 518.8 -606.1 -9405.6 721.7 1119.1 24 -3223.2 533.6 -606.1 -9402.2 765.3 1119.1 24 -3211.6 378.8 80.4 -9382.3 496.8 2069.5 25 -3222.1 585.9 80.4 -9416.8 1100.7 2069.5 25 -3211.5 431.1 844.7 -9396.8 799.9 3174.6 26 -3208.7 450.3 844.7 -9391.8 856.7 3174.6 26 -3199.0 295.5 1405.1 -9365.2 -74.9 3388.7 27 -3208.0 501.9 1405.1 -9393.1 527.4 3388.7 27 -3199.2 347.1 2043.0 -9355.2 377.2 4263.9 28 -3197.0 366.1 2043.0 -9352.8 433.2 4263.9 28 -3189.1 211.3 2476.9 -9336.7 -208.3 4461.6 29 -3196.1 418.5 2476.9 -9360.4 395.9 4461.6 29 -3189.1 263.7 2988.5 -9340.5 288.7 3009.4 30 -3187.6 282.4 2988.5 -9338.7 344.1 3009.4 30 -3181.6 127.6 3296.5 -9328.3 75.6 3325.6 31 -3187.0 334.4 3296.5 -9345.8 655.9 3237.0 31 -3181.9 179.6 3682.1 -9336.9 390.5 4023.4 32 -3180.7 198.4 3682.1 -9334.5 445.9 4023.4 32 -3176.6 43.6 3863.6 -9327.3 177.4 4492.2 33 -3180.3 250.8 3863.6 -9337.6 759.0 4338.8 33 -3177.0 96.0 4123.8 -9332.0 493.6 5279.6 34 -3176.2 114.8 4123.8 -9328.9 549.0 5279.6 34 -3173.9 -40.0 4180.0 -9324.9 10.6 5902.9 35 -3175.9 166.9 4180.0 -9328.0 614.6 5902.9 35 -3174.5 12.1 4314.0 -9323.2 349.2 6626.8 36 -3174.4 31.0 4314.0 -9320.9 405.1 6626.8 36 -3174.0 -123.8 4244.4 -9320.1 136.6 7034.3 37 -3174.0 123.9 4244.4 -9320.1 -139.6 7034.3 37 -3174.4 -30.9 4314.1 -9320.9 -405.0 6627.0 38 -3174.5 -12.0 4314.1 -9323.2 -349.0 6627.0 38 -3175.9 -166.8 4180.2 -9327.7 -875.7 5798.2 39 -3173.9 40.1 4180.2 -9324.5 -271.7 5798.2 39 -3176.2 -114.7 4124.1 -9328.9 -548.8 5280.0 40 -3177.0 -95.9 4124.1 -9332.0 -493.5 5280.0 40 -3180.3 -250.7 3864.0 -9337.5 -762.0 4339.4 41 -3176.6 -43.5 3864.0 -9327.2 -180.4 4492.8 41 -3180.7 -198.3 3682.6 -9334.5 -445.8 4024.2 42 -3181.9 -179.5 3682.6 -9336.9 -390.4 4024.2 42 -3187.0 -334.3 3297.1 -9345.7 -658.9 3238.0 43 -3181.6 -127.6 3297.1 -9328.2 -78.5 3326.6 43 -3187.6 -282.4 2989.2 -9338.7 -343.9 3010.5 44 -3189.1 -263.6 2989.2 -9340.5 -288.6 3010.5 44 -3196.1 -418.4 2477.7 -9359.3 -701.9 4419.0 45 -3189.1 -211.3 2477.7 -9335.5 -97.6 4419.0 45 -3197.0 -366.1 2043.9 -9352.8 -433.1 4265.4 46 -3199.2 -347.0 2043.9 -9355.2 -377.1 4265.4 46 -3208.0 -501.8 1406.1 -9390.4 -1103.1 3275.9 47 -3199.0 -295.4 1406.1 -9362.4 -500.8 3275.9 47 -3208.7 -450.2 845.8 -9391.8 -856.6 3176.3 48 -3211.5 -431.0 845.8 -9396.8 -799.8 3176.3 48 -3222.1 -585.8 81.6 -9416.6 -1103.7 2071.4 49 -3211.6 -378.8 81.6 -9382.1 -499.8 2071.4 49 -3223.2 -533.6 -604.8 -9402.2 -765.2 1121.1 50 -3225.6 -518.7 -604.8 -9405.6 -721.5 1121.1 50 -3238.0 -673.5 -1501.7 -9426.8 -990.0 -165.4 51 -3223.2 -485.2 -1501.7 -9383.4 -439.8 -165.4 51 -3235.6 -640.0 -2348.2 -9411.3 -781.1 -89.2 52 -3235.6 -640.0 -2348.2 -9411.3 -781.1 -89.2 52 -3248.0 -794.8 -3427.7 -9433.9 -1085.3 -1324.8 53 -3233.7 -616.0 -3427.7 -9392.2 -563.3 -1324.8 53 -3246.1 -770.8 -4471.1 -9413.7 -828.7 -2371.1 54 -3246.1 -770.8 -4471.1 -9413.7 -828.7 -2371.1 54 -3258.5 -925.6 -5747.3 -9434.9 -1097.1 -3818.8 55 -3246.6 -778.0 -5747.3 -9400.4 -665.9 -3818.8 55 -3258.9 -932.8 -7034.6 -9421.9 -931.2 -5019.4 56 -3258.9 -932.8 -7034.6 -9421.9 -931.2 -5019.4 56 -3271.3 -1089.0 -8554.6 -9443.1 -1198.1 -6621.4 57 -3001.3 2352.5 -9476.3 -9310.9 481.2 -6491.8 57 -3017.6 2100.7 -6276.4 -9330.4 237.4 -5951.2 58 -3017.6 2100.7 -6276.4 -9330.4 237.4 -5951.2 58 -3039.5 1572.2 -3624.1 -9349.9 -6.4 -5777.4 59 -3028.1 1714.4 -3624.1 -9316.5 411.7 -5777.4 59 -3051.1 1732.8 -753.0 -9336.0 167.8 -5341.4 60 -3051.1 1732.8 -753.0 -9336.0 167.8 -5341.4 60 -3068.6 1446.3 1276.4 -9355.5 -76.0 -5272.2 61 -3054.8 1618.6 1276.4 -9315.0 430.0 -5272.2 61 -3080.4 1312.2 2973.6 -9334.5 186.2 -4808.7 62 -3080.4 1312.2 2973.6 -9334.5 186.2 -4808.7 62 -3107.3 1025.3 4223.1 -9354.0 -57.7 -4712.0 63 -3092.8 1206.0 4223.1 -9311.7 471.9 -4712.0 63 -3120.0 931.5 5288.3 -9331.2 228.1 -4185.3 64 -3120.0 931.5 5288.3 -9331.2 228.1 -4185.3 64 -3146.1 86.1 4156.6 -9350.7 -15.7 -4025.6 65 -3131.6 267.0 4156.6 -9308.3 514.1 -4025.6 65 -3155.5 643.9 6125.7 -9327.8 270.3 -3435.4 66 -3155.5 643.9 6125.7 -9327.8 270.3 -3435.4 66 -3170.0 -71.3 6579.4 -9347.3 26.5 -3212.1 67 -3155.5 110.1 6579.4 -9304.9 556.1 -3212.1 67 -3176.5 281.8 6404.4 -9324.4 312.3 -2558.7 68 -3176.5 281.8 6404.4 -9324.4 312.3 -2558.7 68 -3202.0 -479.9 5682.5 -9344.0 58.1 -2209.9 69 -3187.4 -298.4 5682.5 -9301.7 587.7 -2209.9 69 -3206.7 -162.8 2403.0 -9335.8 -115.8 758.7 70 -3206.7 -162.8 2403.0 -9335.8 -115.8 758.7 70 -3219.9 -321.7 1972.5 -9367.4 -428.9 419.3 71 -3205.5 -141.0 1972.5 -9325.1 99.8 419.3 71 -3219.4 -328.5 1339.2 -9360.9 -426.3 812.9 72 -3219.4 -328.5 1339.2 -9360.9 -426.3 812.9 72 -3234.6 -577.0 .0 -9396.8 -745.0 .0 101 9944.5 .0 .0 3387.0 .0 .0 101 9947.1 .0 .0 3388.7 .0 .0 102 10144.7 .0 .0 3456.0 .0 .0 102 10147.8 .0 .0 3457.9 .0 .0 103 10369.0 .0 .0 3533.3 .0 .0 103 10372.5 .0 .0 3535.5 .0 .0 104 10615.8 .0 .0 3618.6 .0 .0 104 10619.6 .0 .0 3621.1 .0 .0 105 10883.8 .0 .0 3711.0 .0 .0 105 10888.0 .0 .0 3713.7 .0 .0 106 11171.2 .0 .0 3810.5 .0 .0 106 11175.9 .0 .0 3813.5 .0 .0 107 11463.2 .0 .0 3911.3 .0 .0 107 11468.3 .0 .0 3914.5 .0 .0 108 11717.3 .0 .0 3999.5 .0 .0 108 11720.9 .0 .0 4001.8 .0 .0 111 10903.8 .0 .0 3741.6 .0 .0 111 10901.2 .0 .0 3740.0 .0 .0 112 10705.4 .0 .0 3672.9 .0 .0 112 10702.0 .0 .0 3670.7 .0 .0 113 10484.4 .0 .0 3596.0 .0 .0 113 10481.3 .0 .0 3594.1 .0 .0 114 10277.4 .0 .0 3524.0 .0 .0 114 10274.8 .0 .0 3522.3 .0 .0 115 10096.6 .0 .0 3461.2 .0 .0 115 10094.4 .0 .0 3459.8 .0 .0 116 9943.5 .0 .0 3408.2 .0 .0 116 9941.7 .0 .0 3407.0 .0 .0 117 9819.2 .0 .0 3365.1 .0 .0 117 9817.8 .0 .0 3364.2 .0 .0 118 9724.8 .0 .0 3332.4 .0 .0 118 9723.8 .0 .0 3331.8 .0 .0 119 9661.1 .0 .0 3310.1 .0 .0 119 9660.5 .0 .0 3309.8 .0 .0 120 9628.8 .0 .0 3299.0 .0 .0 120 9628.6 .0 .0 3298.8 .0 .0 121 9628.6 .0 .0 3298.8 .0 .0 121 9628.8 .0 .0 3299.0 .0 .0 122 9660.5 .0 .0 3309.8 .0 .0 122 9661.1 .0 .0 3310.1 .0 .0 123 9723.8 .0 .0 3331.8 .0 .0 123 9724.8 .0 .0 3332.4 .0 .0 124 9817.8 .0 .0 3364.2 .0 .0 124 9819.2 .0 .0 3365.1 .0 .0 125 9941.7 .0 .0 3407.0 .0 .0 125 9943.5 .0 .0 3408.2 .0 .0 126 10094.4 .0 .0 3459.8 .0 .0 126 10096.6 .0 .0 3461.2 .0 .0 127 10274.8 .0 .0 3522.3 .0 .0 127 10277.4 .0 .0 3524.0 .0 .0 128 10481.3 .0 .0 3594.1 .0 .0 128 10484.4 .0 .0 3596.0 .0 .0 129 10702.0 .0 .0 3670.7 .0 .0 129 1