Midas模型的建立

1、一、 模型的建立1.选择材料和截面特性，添加材料并设置属性，在设置虚设梁属性时，规范选择无，将其弹性模量，线性膨胀系数改成无限小。添加截面并设置属性，在设置虚设梁属性时，在数值栏，将其面积，各轴的惯性矩改成无限小。2.用建模助手建立一个跨度为57米，高为10米的拱通过单元复制与移动，在Y轴方向选择10米其他轴间距为0米。再建立单元将横系梁，斜支撑和横向支撑，水平支撑连好。依次将各个构件赋予材料与截面属性。3.添加支撑。边界条件一般支撑，先将左下角的支点X,Y,Z方向均固定；沿支点1X轴方向的支点固定Y，Z轴；沿支点1Y轴方向支点固定Y,Z轴；与支点1对角的支点只固定Z轴。4.添加荷载：首先荷载

2、静力荷载工况，添加二期荷载，人群荷载，自重，其类型均为用户定义。然后荷载连续梁单元荷载，将荷载工程概况改为二期荷载，在数值W栏添加数值-45，先用鼠标选择加载区间；将荷载工况改为人群荷载，数值W栏改为-4.5,选择加载区间；选择自重，添加自重，将Z轴方向数值改为-1。5.移动荷载分析：菜单移动荷载分析移动荷载规范，分别设置车道，车辆，移动荷载工况三项。车道设置：将桥梁跨度设为10000M，桥梁两头选择虚设梁两端；车辆设置：选择中国城市桥梁荷载；移动荷载设置：选择添加，将上述设置好的车道添加进来。6.通过模型结构类型，将结构的自重转换为质量中选择按集中质量法转换转换到X,Y,Z；模型质量将荷载转

3、换成质量，荷载工况选择二期荷载，然后添加确定；分析特征值分析控制，将振型数量改为10。7.运行分析，在菜单结果周期与振型中查看振型图与频率。在表格分析结果表格梁单元内力中查看各种荷载作用下的内力数值。二、计算结果1.、内力数据表单元荷载位置表1 二期恒载作用下梁单元内力轴向 (kN)剪力-y (kN)剪力-z (kN)扭矩 (kN*m)弯矩-y (kN*m)弯矩-z (kN*m)1二期恒载1/2-2021.69-0.05-3.156.4240.85-21.142二期恒载1/2-1978.88-3.99-13.874.4110.59-5.443二期恒载1/2-1900.33-6.51-6.73-

4、2.6216.2329.54二期恒载1/2-1838.195.22-6.67-6.8816.212.935二期恒载1/2-1515.78-10.97-6.43-8.5311.58-0.486二期恒载1/2-1517.249.864.848.8711.381.57二期恒载1/2-1855.72.424.415.2416.41.648二期恒载1/2-1953.88-3.294.34-7.2614.01-8.359二期恒载1/2-2041.21-1.189.98-2.898.456.6710二期恒载1/2-2108.971.71-1.17-1.2635.33611二期恒载1/2624.991.48-

5、65.0115.51336.690.4312二期恒载1/2514.06-1.3-8.3217.24403-2.6813二期恒载1/2363.77-0.63-2.4814.84356.33-0.1214二期恒载1/2203.4-2.02-0.6810.67321.583.7515二期恒载1/2-19.48-1.85-5.916.14316.9410.3116二期恒载1/2-20.47-0.824.560.92314.999.9717二期恒载1/2-135.31-2.430.24-4.64312.58.918二期恒载1/2-311.38-2.414.84-11.39327.6211.8519二期恒

6、载1/2-500-2.547.36-21.01348.7115.6120二期恒载1/2-719.581.4150.52-28.37288.4810.5421二期恒载1/2197.293.9462.41-0.01-27.42-2.4122二期恒载1/2249.422.5220.880-8.09-1.5523二期恒载1/2254.421.79-8.820-4.28-0.124二期恒载1/2263.450.644.040-2.791.0825二期恒载1/2247.440.43-1.140-0.14-1.926二期恒载1/2264.05-0.7-1.3902.511.2127二期恒载1/2255.33

7、-1.875.5403.6-0.7128二期恒载1/2257.93-2.11-14.5507.331.7229二期恒载1/2216.25-2.8943.96024.5-1.9930二期恒载1/2-2052.74-0.23-1.727.839.2-20.8531二期恒载1/2-1999.23-3.76-12.196.6111.82-5.632二期恒载1/2-1916.9-5.8-5.981.5819.3226.0933二期恒载1/2-1812.425.2-5.988.6220.13.4134二期恒载1/2-1475.379.14-5.419.4614.84-0.9735二期恒载1/2-1473.

8、91-10.257-9.1215.04136二期恒载1/2-1794.922.458.24-10.2519.91-7.8837二期恒载1/2-1863.34-48.37-11.4621.54-11.7638二期恒载1/2-1936.9-1.4116.08-5.0913.966.5239二期恒载1/2-1965.461.896.04-2.6544.726.2840二期恒载1/2127.720.75-64.515.47329.451.9941二期恒载1/2354.79-3.13-11.4916.73415.53-2.9342二期恒载1/2543.71-3.06-5.7414.55393.970.9

9、443二期恒载1/2719.07-2.560.399.98372.412.7944二期恒载1/2829.83-4.75-4.475.56369.489.1945二期恒载1/2830.822.085.831.49371.448.8546二期恒载1/21057.78-1.890.05-3.96381.497.9447二期恒载1/21218.850.023.37-11.09422.6812.9148二期恒载1/21368.85-0.7112.45-20.5469.8315.3649二期恒载1/21472.282.1478.99-28.33377.6512.150二期恒载1/2205.193.5454

10、.39-0.01-26.03-2.7151二期恒载1/2252.12.0417.760-7.55-2.0352二期恒载1/2250.771.19-6.420-4.080.7753二期恒载1/2261.27-0.481.680-2.71-1.1754二期恒载1/2244.43-1.741.1400.141.855二期恒载1/2260.66-1.82-4.3202.99-1.0456二期恒载1/2249.86-2.479.704.760.1657二期恒载1/2243.59-2.59-24.0908.311.2458二期恒载1/2186.23-3.2972.84028.95-1.6859二期恒载1/

11、201.836.82-0.0114.274.5460二期恒载1/2-159.28-0.281.67-0.034.473.2561二期恒载1/2-152.51-0.250.51-0.023.693.4562二期恒载1/2-151.99-0.09-0.32-0.021.893.6963二期恒载1/2-199.64-0.07-1.48-0.020.063.6764二期恒载1/20.62.12-1.410-1.472.6265二期恒载1/295.893.53-2.960.01-4.482.3666二期恒载1/2148.623.39-3.920.02-7.892.4467二期恒载1/2151.923.2

12、1-4.420.02-8.792.3568二期恒载1/2158.712.52-3.420.04-6.972.1269二期恒载1/201.296.590.0213.713.2670二期恒载1/221.250.4323.88-0.78-34.080.1671二期恒载1/2249.0720.662.63-2.52-17.42-0.3172二期恒载1/218.932.262.95-2.140.846.3373二期恒载1/2270.16-22.31.981.03-21.710.3974二期恒载1/218.930.79-2.690.57-13.261.375二期恒载1/221.120.43-25.59-0

13、.78-31.09-0.1676二期恒载1/2274.77-22.6-3.57-0.27-20.71-0.6377二期恒载1/218.932.262.95-2.14-13.93-4.9678二期恒载1/2253.6720.96-4.22-1.23-16.420.5579二期恒载1/218.930.79-2.690.570.17-2.6680二期恒载1/2-407.95-5.819.626.24-5.31-0.9481二期恒载1/2-407.67-5.68-10.265.94-2.211.1482二期恒载1/2-428.335.449.07-6.77-3.390.4583二期恒载1/2-428.

14、055.31-9.71-6.47-0.28-0.6584二期恒载1/2-6.761.032.242.972.013.0985二期恒载1/2-50.122.1-0.49-4.895.08-3.9986二期恒载1/2-42.031.190.2-5.11-0.081.5187二期恒载1/2-14.850.12-2.532.757.17-0.6288二期恒载1/201.836.82-0.01-19.82-4.5989二期恒载1/2156.113.552.510.01-9.8-3.0590二期恒载1/2148.754.242.170-6.44-3.2891二期恒载1/2145.464.411.230-3

15、.16-3.3592二期恒载1/293.934.67-0.0502.11-3.4993二期恒载1/2-8.572.12-1.7706.52-2.6294二期恒载1/2-201.6-1.21-1.52-0.016.66-2.5595二期恒载1/2-155.15-1.11-2.37-0.016.61-2.7896二期恒载1/2-155.68-1.28-2.7606.03-2.5297二期恒载1/2-161.87-1.31-2.5801.64-2.3398二期恒载1/201.296.590.02-19.25-3.2199二期恒载1/2301.98-0.05-0.230.012.591.13100二期

16、恒载1/2309.140.14-0.090.013.77-0.31101二期恒载1/2-146.47-0.3-0.27-0.013.690.27102二期恒载1/2-139.31-0.48-0.05-0.014.87-1.08103二期恒载1/2-222.4-0.080.4901.810.24104二期恒载1/2228.640-0.9503.66-0.33105二期恒载1/2-227.33-0.050.4700.860.14106二期恒载1/2233.270-1.0805.04-0.18107二期恒载1/2-230.28-0.020.510-0.42-0.04108二期恒载1/2236.20.

17、03-1.1606.76-0.01109二期恒载1/2-240.770.210.460-3.070.11110二期恒载1/2245.860.21-0.3806.32-0.1111二期恒载1/2225.39-0.240.6100.971.12112二期恒载1/2-219.15-0.33-0.8304.5-1.03113二期恒载1/2228.22-0.220.7300.670.96114二期恒载1/2-222.28-0.27-0.8205.23-0.92115二期恒载1/2231.13-0.20.8600.670.79116二期恒载1/2-225.21-0.25-0.8105.67-0.74117

18、二期恒载1/2241.67-0.010.580-0.680.87118二期恒载1/2-236.58-0.01-0.2703.93-0.88119二期恒载1/2000000120二期恒载1/2000000121二期恒载1/2000000122二期恒载1/2000000123二期恒载1/2000000124二期恒载1/2000000125二期恒载1/2000000126二期恒载1/2000000127二期恒载1/2000000128二期恒载1/2000000表2 人群荷载作用下梁单元内力单元荷载位置轴向 (kN)剪力-y (kN)剪力-z (kN)扭矩 (kN*m)弯矩-y (kN*m)弯矩-z

19、(kN*m)1人群荷载1/2-202.170-0.320.644.08-2.112人群荷载1/2-197.89-0.4-1.390.441.06-0.543人群荷载1/2-190.03-0.65-0.67-0.261.622.954人群荷载1/2-183.820.52-0.67-0.691.621.295人群荷载1/2-151.58-1.1-0.64-0.851.16-0.056人群荷载1/2-151.720.990.480.891.140.157人群荷载1/2-185.570.240.440.521.640.168人群荷载1/2-195.39-0.330.43-0.731.4-0.839人群

20、荷载1/2-204.12-0.121-0.290.850.6710人群荷载1/2-210.90.17-0.12-0.133.530.611人群荷载1/262.50.15-6.51.5533.670.0412人群荷载1/251.41-0.13-0.831.7240.3-0.2713人群荷载1/236.38-0.06-0.251.4835.63-0.0114人群荷载1/220.34-0.2-0.071.0732.160.3715人群荷载1/2-1.95-0.18-0.590.6131.691.0316人群荷载1/2-2.05-0.080.460.0931.5117人群荷载1/2-13.53-0.2

21、40.02-0.4631.250.8918人群荷载1/2-31.14-0.240.48-1.1432.761.1919人群荷载1/2-50-0.250.74-2.134.871.5620人群荷载1/2-71.960.145.05-2.8428.851.0521人群荷载1/219.730.396.240-2.74-0.2422人群荷载1/224.940.252.090-0.81-0.1523人群荷载1/225.440.18-0.880-0.43-0.0124人群荷载1/226.340.060.40-0.280.1125人群荷载1/224.740.04-0.110-0.01-0.1926人群荷载1

22、/226.4-0.07-0.1400.250.1227人群荷载1/225.53-0.190.5500.36-0.0728人群荷载1/225.79-0.21-1.4600.730.1729人群荷载1/221.63-0.294.402.45-0.230人群荷载1/2-205.27-0.02-0.170.783.92-2.0931人群荷载1/2-199.92-0.38-1.220.661.18-0.5632人群荷载1/2-191.69-0.58-0.60.161.932.6133人群荷载1/2-181.240.52-0.60.862.010.3434人群荷载1/2-147.540.91-0.540.

23、951.48-0.135人群荷载1/2-147.39-1.020.7-0.911.50.136人群荷载1/2-179.490.240.82-1.031.99-0.7937人群荷载1/2-186.33-0.40.84-1.152.15-1.1838人群荷载1/2-193.69-0.141.61-0.511.40.6539人群荷载1/2-196.550.190.6-0.264.470.6340人群荷载1/212.770.08-6.451.5532.940.241人群荷载1/235.48-0.31-1.151.6741.55-0.2942人群荷载1/254.37-0.31-0.571.4639.40

24、.0943人群荷载1/271.91-0.260.04137.240.2844人群荷载1/282.98-0.47-0.450.5636.950.9245人群荷载1/283.080.210.580.1537.140.8846人群荷载1/2105.78-0.190.01-0.438.150.7947人群荷载1/2121.8800.34-1.1142.271.2948人群荷载1/2136.88-0.071.25-2.0546.981.5449人群荷载1/2147.230.217.9-2.8337.771.2150人群荷载1/220.520.355.440-2.6-0.2751人群荷载1/225.210

25、.21.780-0.76-0.252人群荷载1/225.080.12-0.640-0.410.0853人群荷载1/226.13-0.050.170-0.27-0.1254人群荷载1/224.44-0.170.1100.010.1855人群荷载1/226.07-0.18-0.4300.3-0.156人群荷载1/224.99-0.250.9700.480.0257人群荷载1/224.36-0.26-2.4100.830.1258人群荷载1/218.62-0.337.2802.89-0.1759人群荷载1/200.180.6801.430.4560人群荷载1/2-15.93-0.030.1700.4

26、50.3361人群荷载1/2-15.25-0.030.0500.370.3462人群荷载1/2-15.2-0.01-0.0300.190.3763人群荷载1/2-19.96-0.01-0.1500.010.3764人群荷载1/20.060.21-0.140-0.150.2665人群荷载1/29.590.35-0.30-0.450.2466人群荷载1/214.860.34-0.390-0.790.2467人群荷载1/215.190.32-0.440-0.880.2468人群荷载1/215.870.25-0.340-0.70.2169人群荷载1/200.130.6601.370.3370人群荷载1

27、/22.120.042.39-0.08-3.410.0271人群荷载1/224.912.070.26-0.25-1.74-0.0372人群荷载1/21.890.230.3-0.210.080.6373人群荷载1/227.02-2.230.20.1-2.170.0474人群荷载1/21.890.08-0.270.06-1.330.1375人群荷载1/22.110.04-2.56-0.08-3.11-0.0276人群荷载1/227.48-2.26-0.36-0.03-2.07-0.0677人群荷载1/21.890.230.3-0.21-1.39-0.578人群荷载1/225.372.1-0.42-

28、0.12-1.640.0579人群荷载1/21.890.08-0.270.060.02-0.2780人群荷载1/2-40.8-0.580.960.62-0.53-0.0981人群荷载1/2-40.77-0.57-1.030.59-0.220.1182人群荷载1/2-42.830.540.91-0.68-0.340.0583人群荷载1/2-42.810.53-0.97-0.65-0.03-0.0784人群荷载1/2-0.680.10.220.30.20.3185人群荷载1/2-5.010.21-0.05-0.490.51-0.486人群荷载1/2-4.20.120.02-0.51-0.010.1

29、587人群荷载1/2-1.480.01-0.250.270.72-0.0688人群荷载1/200.180.680-1.98-0.4689人群荷载1/215.610.350.250-0.98-0.390人群荷载1/214.880.420.220-0.64-0.3391人群荷载1/214.550.440.120-0.32-0.3492人群荷载1/29.390.47000.21-0.3593人群荷载1/2-0.860.21-0.1800.65-0.2694人群荷载1/2-20.16-0.12-0.1500.67-0.2595人群荷载1/2-15.52-0.11-0.2400.66-0.2896人群荷

30、载1/2-15.57-0.13-0.2800.6-0.2597人群荷载1/2-16.19-0.13-0.2600.16-0.2398人群荷载1/200.130.660-1.93-0.3299人群荷载1/230.20-0.0200.260.11100人群荷载1/230.910.01-0.0100.38-0.03101人群荷载1/2-14.65-0.03-0.0300.370.03102人群荷载1/2-13.93-0.05000.49-0.11103人群荷载1/2-22.24-0.010.0500.180.02104人群荷载1/222.860-0.0900.37-0.03105人群荷载1/2-22

31、.7300.0500.090.01106人群荷载1/223.330-0.1100.5-0.02107人群荷载1/2-23.0300.050-0.040108人群荷载1/223.620-0.1200.680109人群荷载1/2-24.080.020.050-0.310.01110人群荷载1/224.590.02-0.0400.63-0.01111人群荷载1/222.54-0.020.0600.10.11112人群荷载1/2-21.92-0.03-0.0800.45-0.1113人群荷载1/222.82-0.020.0700.070.1114人群荷载1/2-22.23-0.03-0.0800.52

32、-0.09115人群荷载1/223.11-0.020.0900.070.08116人群荷载1/2-22.52-0.03-0.0800.57-0.07117人群荷载1/224.1700.060-0.070.09118人群荷载1/2-23.660-0.0300.39-0.09119人群荷载1/2000000120人群荷载1/2000000121人群荷载1/2000000122人群荷载1/2000000123人群荷载1/2000000124人群荷载1/2000000125人群荷载1/2000000126人群荷载1/2000000127人群荷载1/2000000128人群荷载1/2000000表3 自

33、重作用下梁单元内力单元荷载位置轴向 (kN)剪力-y (kN)剪力-z (kN)扭矩 (kN*m)弯矩-y (kN*m)弯矩-z (kN*m)1自重1/2-760.82-0.47-1.033.7117.06-7.072自重1/2-750.75-1.26-7.173.943.19-0.883自重1/2-726.14-1.46-5.473.795.037.94自重1/2-703.382.81-3.130.8311.832.135自重1/2-560.48-4.5-2.02-2.7912.88-3.66自重1/2-561.044.081.412.9212.81-2.847自重1/2-710.050.1

34、2.27-1.4511.9-2.178自重1/2-746.55-2.274.56-7.564.18-6.529自重1/2-774.5-0.715.69-3.362.373.7310自重1/2-794.081.1-0.62-1.7514.953.2711自重1/2230.180.52-11.577.2857.770.112自重1/2192.05-0.51-4.576.5250.99-1.0213自重1/2139.5-0.23-16.115.3973.85-0.0614自重1/282.47-0.77-11.713.99127.851.4315自重1/2-1.42-0.68-4.443.72161.

35、613.9416自重1/2-1.8-0.333.92-1.03160.863.8117自重1/2-46.6-0.9211.54-1.69124.393.3918自重1/2-117.79-0.9217.01-4.0762.914.519自重1/2-194.39-0.964.2-7.9630.35.9520自重1/2-282.210.586.05-12.1839.43.9621自重1/249.290.7927.960-10.97-1.0422自重1/270.30.212.70-3.79-0.9223自重1/256.09-0.24-7.470-1.30.7724自重1/254.12-0.683.58

36、0-0.87-0.6325自重1/253.15-0.73-0.430-0.050.326自重1/254.35-1.19-2.5700.77-0.5827自重1/256.44-1.636.2201.040.5428自重1/273.54-1.56-10.2903.50.3329自重1/256.52-1.8120.9309.86-0.6330自重1/2-772.650.37-0.481.7116.43-8.9331自重1/2-758.5-1.69-6.530.263.66-3.3232自重1/2-732.45-3.23-5.18-4.196.2113.2833自重1/2-693.561.16-2.8

37、6-0.1713.314.134自重1/2-545.083.8-1.633.1414.133.0435自重1/2-544.53-4.232.24-3.0214.23.836自重1/2-686.891.753.73-0.4513.24-0.237自重1/2-712.04-0.516.090.437.05-1.1438自重1/2-734.75-0.288.010.324.471.2939自重1/2-739.390.262.130.2618.531.4140自重1/240.680.33-11.384.5355.010.8241自重1/2131.36-1.18-5.776.4255.77-1.1242

38、自重1/2208.07-1.17-17.355.8188.190.3743自重1/2278.99-0.97-11.33.88147.221.0644自重1/2322.24-1.83-3.890.74181.633.4945自重1/2322.620.824.411.95182.383.3646自重1/2408.06-0.7311.47-1.58150.683.0347自重1/2465.360.0116.45-4.4999.134.9448自重1/2517.8-0.286.14-7.8676.455.8549自重1/2553.070.7716.9-9.4373.384.6750自重1/252.32

39、.0624.90-10.44-0.9151自重1/271.321.5311.510-3.59-0.4552自重1/254.71.38-6.560-1.22-0.5153自重1/253.290.742.680-0.840.654自重1/252.010.230.4300.05-0.3455自重1/253.060.23-3.6900.950.6556自重1/254.35-0.027.8101.48-0.7557自重1/268.07-0.23-13.9203.880.858自重1/245.07-0.5431.93011.55-0.7759自重1/200.7-6.6050.631.7260自重1/2-59.94-0.07-13.240.0153.771.2461自重1/2-57.35-0.08-13.580.0153.221.3162自重1/2-57.03-0.04-13.950.0151.211.4163自重1/2-76.03-0.06-14.570.0150.131.464自重1/21.080.81-21.24056.51165自重1/236.591.38-15.13-0.0148.40.966自重1/257.521.3-15.32-0.0147.480.9367自重1/258.661.21-15.46-0.0148.470.968自重1/261.240.92