型钢、321钢便桥技术参数

1、型号尺寸mm截面面积2 cm理论质量Kg/m参考数值X-XY-YY1-Y2Z0cmWx3Ix4ixWY_3IY4IYIY14hbdtrr1550374.577.03.56.9285.43810.426.01.943.558.31.120.91.356.363404.87.57.53.88.4516.63416.150.82.454.5011.91.1928.41.36880435.088.04.010.2488.04525.31013.155.7916.61.2737.41.4310100485.38.58.54.212.74810.00739.71983.957.825.61.4154.91

2、.5212.6126535.599.04.515.69212.31862.13914.9510.238.01.5777.11.5914a140586.09.59.54.818.51614.53580.55645.5213.053.21.701071.7114b140608.09.59.54.821.31616.73387.16095.3514.161.11.691211.6716a160636.51010.05.021.96217.2401088666.2816.373.31.831441.8016160658.51010.05.025.16219.7521179356.1017.683.41

3、.821611.7518a180687.010.510.55.225.699200420.098.61.961901.8818180709.010.510.55.229.29923.00015213706.8421.51111.952101.8420a200737.01111.05.528.83722.63717817807.8624.21282.112442.0120200759.01111.05.532.83725.77719119107.6425.91442.092681.9522a220777.011.511.55.831.84624.99921823908.

4、6728.21582.232982.1022220799.011.511.55.836.24628.45323425708.4230.11762.213262.0325a250787.01212.06.034.91727.41027033709.8230.61762.243222.0725b2508091212639.91731.33528235309.4132.71962.223531.9825c25082111212644.91735.26029536909.0735.92182.213841.9228a280827.512.512.56.240.03431.427340476010.93

5、5.72182.333882.1028b280849.512.512.56.245.63435.823366513010.637.92422.304282.0228c2808611.512.512.56.251.23440.219393550010.440.32682.294631.9532a3208881414748.51338.083475760012.546.53052.55522.2432b32090101414754.91343.107509814012.249.23362.475932.1632c32092121414761.31348.131543869011.952.63742

6、.476432.0936a3609691616860.91047.814660119001463.54552.738182.4436b36098111616868.11053.4667031270013.666.94972.708802.3736c360100131616875.31059.1187461340013.4705362.679482.3440a40010010.51818975.06858.9288791760015.378.85922.8110702.4940b40010212.51818983.06865.208932186001582.56402.7811402.4440c

7、40010414.51818991.06871.4889861970014.786.26882.7512202.42号尺寸mm截面面积2 cm理论质量Kg/mX-XY-YIx4Wx3ixIY4WY3iYhbdtrr110100684.57.66.53.314.34511.261245494.14339.721.5212.61267458.47.03.518.11814.22348877.55.246.912.71.6114140805.59.17.53.821.51616.897121025.7664.416.11.7316160886.09.98.04.026.13120.513113014

8、16.5893.121.21.8918180946.510.78.54.330.7562436122262.0020a2001007.011.494.535.57827.92923702378.1515831.52.1220b2001029.011.494.539.57831.06925002507.9616933.12.0622a2201107.512.39.54.842.12833.07034003098.9922540.92.3122b2201129.512.39.64.846.52836.52435703258.7823942.72.2725a2501168.

9、013.010.05.048.54138.105502040210.228048.32.4025b25011810.013.010.05.053.54142.03052804239.9430952.42.4028a2801228.513.710.55.355.40443.492711050811.334556.62.5028b28012410.513.710.55.361.00447.888748053411.137961.22.4932a3201309.515.011.55.867.15652.7171110069212.846070.82.6232b32013211.515.011.55.

10、873.55657.7411160072612.650276.02.6132c32013413.515.011.55.879.95662.7651220076012.354481.22.6136a36013610.015.812.06.076.48060.0371580087514.455281.22.6936b36013812.015.812.06.083.68065.6891650091914.158284.32.6436c36014014.015.812.06.090.88071.3411730096213.861287.42.6040a40014210.516.512.56.386.1

11、1267.59821700109015.966093.22.7740b40014412.516.512.56.394.11273.87822800114015.669296.22.7140c40014614.516.512.56.3102.11280.15823900119015.272799.62.6545a45015010.518.013.56.8102.44680.42032200143017.78551142.8945b45015212.518.013.56.8111.44687.48533800150017.48941182.8445c45015414.518.013.56.8120

12、.44694.55035300157017.19381222.7950a50015812.020.014.07.0119.30493.65445600186019.711201423.0750b50016014.020.014.07.0129.304101.50448600194019.411701463.0150c50016216.020.014.07.0139.304109.35450600208019.012201512.9656a56016612.521.014.57.3135.435106.31665600234022.013701653.1856b56016814.521.014.

13、57.3146.635115.10868500245021.614901743.1656c56017016.521.014.57.3157.835123.90071400255021.315601833.1663a63017613.022.015.07.5154.658121.40793900298024.517001933.3163b63017815.022.015.07.5167.258131.29898100316024.218102043.2963c63018017.022.015.07.5179.189141.189102000330023.819202143.27321型钢桥梁技术

14、参数、荷载跨径与桥梁组合配置表跨径 （m）荷载汽车10级汽车15级汽车20级履带50级挂车80级9S,SS,SS,SS,S12S,SS,SS,SS,SD,S15S,SS,SS,S,RS,S,RD,S18S,SS,S,RD,SD,SD,S21S,S,RS,S,RD,SD,SD,S,R24S,S,RD,SD,SD,S,RD,S,R27S,S,RD,S,RD,S,RD,S,RD,S,R30D,SD,S,RD,S,RD,S,RT,S,R33D,S,RD,S,RD,S,RD,S,RT,S,R36D,S,RD,S,RD,S,RD,S,RT,S,R39D,S,RD,S,RT,S,RT,S,RT.D,R42D

15、,S,RT,S,RT,S,RT,S,RT.D,R45T,S,RT,S,RT.D,RT.D,R48T,S,RD,D,RT.D,RT.D,R51D,D,RD,D,RT.D,RT.D,R54D,D,RD,D,RT.D,R57D,D,RT.D,RT.D,R60D,D,RT.D,RT.D,R63T.D,R1、S,S表示单排单层；D,S表示双排单层；T,S表示三排单层；D,D表示双排双层；T,D表示三排双层；2、S,S、D,S、T,S、D,D和T,D之后加R,则表示它们的加强型即有加强弦杆的。、321型钢桥各类组合每节重量表（KN）（木桥面）全部装齐桥面板、护 轮木未装桥面板、护轮木、纵梁未装单排单层不加

16、强22.715.711.5加强26.319.315.1双排单层不加强28.721.717.5加强35.728.724.5三排单层不加强34.427.423.2加强45.038.033.8双排双层不加强40.233.229.0加强476.340.336.1三排双层不加强51.744.740.5加强62.355.351.1三、321型钢桥各类组合每节重量表（KN）（钢桥面）全部装齐中央钢桥、面板未装标准，中央钢板面板，路缘未装单排单层不加强21.720.411.5加强25.324.015.1双排单层不加强27.726.417.5加强34.733.424.5三排单层不加强33.432.123.2加强

17、44.042.733.8双排双层不加强39.237.929.0加强46.345.036.1三排双层不加强50.749.440.5加强61.360.051.1四、321钢桥实际架设过程中，不仅仅是只有简支梁的情况，往往需要考虑多跨连续结构， 而连续梁桥在跨中和连续支点处，都有可能出现最大的弯矩，而同时产生的剪力亦有可能达 到最大值，所以要对桁架进行验算。其次是利用321钢桥来加固运送大型构件的桥梁以及用 作架桥设备等，都需要对桁架进行验算，为方便计算、提供验算时参考，将几何组合形式和 桥梁容许内力列于下表桥梁几何特征和容许内力表W (cm3)I（cm4）弯矩(KN.m)剪力（KN）单排单层不加强

18、3578.5250497.2788.2245.2加强7699.1577434.41687.5245.2双排单层不加强7157.1500994.41576.4490.5加强15398.31154868.83375.0490.5三排单层不加强10735.6751491.62246.4698.9加强23097.41732303.24809.4698.9双排双层不加强14817.92148588.83265.4490.5加强30641.74596255.26750.0490.5三排双层不加强22226.83222883.24653.2698.9加强45962.66894382.89618.8698.9

19、表中数值为半边桥之值,全桥时应乘以2。桁架销子双剪状态允许剪力550KN； 螺杆螺栓允许剪力150KN，允许拉力80KN；五、各类汽车荷载、桥梁组合形式与相应的跨径内力见下表桁架桥内力表荷载等级组合形式S,SD,ST,SD,DT,DS,S,RD,S,RT,S,RD,D,RT,D,R容许788.21576.42246.43256.44653.21687.53375.04809.46750.09618.8容许剪力245.2490.5698.9490.5698.9245.2490.5698.9490.5698.9汽车-10级跨径L(m)18303642483045516069弯矩(KN.m)643.31547.62173.33012.64382.51519.23238.34505.16243.29508.3剪力(KN)159217.3261.9312.1385.2213.7308.5374.5438.9572.1汽车-15级跨径L(m)1524303