70+120+70m变高度三跨连续梁计算书

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1、计算报告桥梁博士附件本桥为70+120+70m变高度三跨连续梁，主梁中墩支点处梁高7m,高跨比1/17.1，跨中及边跨端部梁高3.2m,高跨比1/37.5。主梁截面采用单箱单室直腹板截面，桥宽14.5m，悬臂3.25m,防撞墙宽50cm,采用满挂篮悬臂现浇施工,按全预应力砼构件设计，全桥共划分226个单元，计算条件和简化模型(见附图)：2.技术标准和设计规范2.1技术标准和设计规范使用程序:桥梁博士3.0计算构件类型:全预应力混凝土构件设计公路桥涵的设计安全等级:一级桥面铺装铺装：10cm沥青砼铺装桥面布置：2.5m人行道+11.5m三车道+0.5m防撞栏＝

2、14.5m行车道数：三车道荷载等级：城A2.2设计规范《公路桥涵设计通用规范》（JTGD60-2004）《公路钢筋混凝土及预应力混凝土桥涵设计规范》（JTGD62-2004）《公路工程抗震设计规范》（JTJ004-89）《城市桥梁设计规范》（CJJ11-2011）《公路桥涵施工技术规范》（JTJ041-2000）三、设计计算参数3.1混凝土本桥箱梁混凝土采用C50。3.2截面特征及单元特征信息列表原始截面信息单元号节点号截面抗弯惯距截面面积中性轴高截面高度X坐标Y坐标126.529428.4251.733.20.00.01226.529428.4251.73

3、3.20.80.0226.529428.4251.733.20.80.02326.529428.4251.733.21.80.03324.329119.161.823.21.80.0424.329119.161.823.22.80.0424.329119.161.823.22.80.04524.041118.6811.833.23.80.0524.041118.6811.833.23.80.05622.14216.181.873.24.80.0616.257811.352.023.24.80.06716.257811.352.023.26.150.0716.

4、257811.352.023.26.150.07第1页计算报告桥梁博士816.257811.352.023.27.50.0816.257811.352.023.27.50.08916.257811.352.023.28.850.0916.257811.352.023.28.850.091016.257811.352.023.29.850.01016.257811.352.023.29.850.0101116.257811.352.023.210.90.01116.257811.352.023.210.90.0111216.771711.4182.043.23

5、14.90.01216.771711.4182.043.2314.90.0121318.14211.5942.083.3218.90.01318.14211.5942.083.3218.90.0131420.322311.8612.133.4422.90.01420.322311.8612.133.4422.90.0141523.43112.2172.213.6126.90.01523.43112.2172.213.6126.90.0151627.545112.6442.293.8130.90.01627.545112.6442.293.8130.90.01

6、61732.90913.1492.394.0534.90.01732.90913.1492.394.0534.90.0171840.708714.61022.494.3338.90.01840.708714.61022.494.3338.90.0181950.665516.272.64.6342.90.01950.665516.272.64.6342.90.0192061.832117.1282.744.9746.90.02061.832117.1282.744.9746.90.0202171.894517.822.855.2549.90.02171.894

7、517.822.855.2549.90.0212283.612818.5572.975.5452.90.02283.612818.5572.975.5452.90.0222397.21319.3393.095.8555.90.02397.21319.3393.095.8555.90.02324113.09820.1923.216.1758.90.024113.09820.1923.216.1758.90.02425131.04921.03153.346.5261.90.025131.04921.03153.346.5261.90.02526159.45424

8、.09723.456.8864.80.026159.