型鋼、321鋼便橋技術參數

1、型號尺寸mm截面面積2 cm理論質量Kg/m參考數值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號尺寸mm截面面積2 cm理論質量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型鋼橋梁技術

14、參數、荷載跨徑與橋梁組合配置表跨徑 （m）荷載汽車10級汽車15級汽車20級履帶50級掛車80級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表示單排單層；D,S表示雙排單層；T,S表示三排單層；D,D表示雙排雙層；T,D表示三排雙層；2、S,S、D,S、T,S、D,D和T,D之后加R,則表示它們的加強型即有加強弦桿的。、321型鋼橋各類組合每節(jié)重量表（KN）（木橋面）全部裝齊橋面板、護 輪木未裝橋面板、護輪木、縱梁未裝單排單層不加

16、強22.715.711.5加強26.319.315.1雙排單層不加強28.721.717.5加強35.728.724.5三排單層不加強34.427.423.2加強45.038.033.8雙排雙層不加強40.233.229.0加強476.340.336.1三排雙層不加強51.744.740.5加強62.355.351.1三、321型鋼橋各類組合每節(jié)重量表（KN）（鋼橋面）全部裝齊中央鋼橋、面板未裝標準，中央鋼板面板，路緣未裝單排單層不加強21.720.411.5加強25.324.015.1雙排單層不加強27.726.417.5加強34.733.424.5三排單層不加強33.432.123.2加強

17、44.042.733.8雙排雙層不加強39.237.929.0加強46.345.036.1三排雙層不加強50.749.440.5加強61.360.051.1四、321鋼橋實際架設過程中，不僅僅是只有簡支梁的情況，往往需要考慮多跨連續(xù)結構， 而連續(xù)梁橋在跨中和連續(xù)支點處，都有可能出現最大的彎矩，而同時產生的剪力亦有可能達 到最大值，所以要對桁架進行驗算。其次是利用321鋼橋來加固運送大型構件的橋梁以及用 作架橋設備等，都需要對桁架進行驗算，為方便計算、提供驗算時參考，將幾何組合形式和 橋梁容許內力列于下表橋梁幾何特征和容許內力表W (cm3)I（cm4）彎矩(KN.m)剪力（KN）單排單層不加強

18、3578.5250497.2788.2245.2加強7699.1577434.41687.5245.2雙排單層不加強7157.1500994.41576.4490.5加強15398.31154868.83375.0490.5三排單層不加強10735.6751491.62246.4698.9加強23097.41732303.24809.4698.9雙排雙層不加強14817.92148588.83265.4490.5加強30641.74596255.26750.0490.5三排雙層不加強22226.83222883.24653.2698.9加強45962.66894382.89618.8698.9

19、表中數值為半邊橋之值,全橋時應乘以2。桁架銷子雙剪狀態(tài)允許剪力550KN； 螺桿螺栓允許剪力150KN，允許拉力80KN；五、各類汽車荷載、橋梁組合形式與相應的跨徑內力見下表桁架橋內力表荷載等級組合形式S,SD,ST,SD,DT,DS,S,RD,S,RT,S,RD,D,RT,D,R容許788.21576.42246.43256.44653.21687.53375.04809.46750.09618.8容許剪力245.2490.5698.9490.5698.9245.2490.5698.9490.5698.9汽車-10級跨徑L(m)18303642483045516069彎矩(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汽車-15級跨徑L(m)1524303