型鋼圓鋼理論質(zhì)量簡(jiǎn)易計(jì)算

一、型鋼規(guī)格的的表示方法法及理論質(zhì)質(zhì)量的簡(jiǎn)易易計(jì)算序號(hào)名稱規(guī)格表示方法（mm）理論質(zhì)量(kkg/m))計(jì)算式符號(hào)說(shuō)明1圓鋼、鋼絲直徑例：φ25W=0.0066165dd2d—直徑2方鋼邊長(zhǎng)例：502或550×500W=0.007785a22a—邊長(zhǎng)3六角鋼對(duì)邊距(內(nèi)切圓圓直徑)例：25W=0.00668s2s—對(duì)邊距離4八角鋼對(duì)邊距(內(nèi)切圓圓直徑)例：15W=0.00665s2s—對(duì)邊距離5六角中空鋼對(duì)邊距(內(nèi)切圓圓直徑)例：25W=0.00668D2－－0.06617d22D—內(nèi)切圓直徑

d——芯孔直徑徑6扁鋼厚度×寬度例：6×20W=0.007785·bb·δb—寬度

δ—厚度7鋼板厚度或厚×寬××長(zhǎng)例：9或9×1140×1180Wm2=7.885δδ—厚度8無(wú)縫鋼管

或電焊焊鋼管外徑×壁厚或外徑×

壁壁厚×長(zhǎng)度－型型號(hào)例：100×33或

100××3×7000－#20W=0.024466t（D－t）D—外徑

t—壁厚9等邊角鋼邊長(zhǎng)2×邊厚例：752×110

75××75×110W≈0.007955d（2b－d）b—邊寬

δ—邊厚10不等邊角鋼長(zhǎng)邊寬×短邊寬寬×邊厚例：100×775×10W≈0.007955d（B＋b－d）d—邊厚B—長(zhǎng)邊寬

b—短邊邊厚11工字鋼高度×腿寬×腰厚或以型號(hào)表表示例：100×66.8×4.5或#10W=0.007785d[[h+3..34(bb-d)]]

W=0..007885d[hh+2.665(b--d)]

WW=0.0007855d[h++2.266(b-dd)]h—高度

b—腿寬

dd—腰厚12槽鋼高度×腿寬×腰厚或以型號(hào)表表示例：100×448×5..3或#10W=0.007785d[[h+3..26(bb-d)]]

W=0..007885d[hh+2.444(b--d)]

WW=0.0007855d[h++2.244(b-dd)]h—高度

b—腿寬

dd—腰厚注：①W為每米長(zhǎng)度（鋼板為每米2）的理論質(zhì)量；②鋼材的相對(duì)密度按7.85計(jì)。二、圓鋼（GB702-86、GB/T905-94）直徑(mm)截面面積（mmm2）理論質(zhì)量（kgg/m）直徑（mm）截面面積（mmm2）理論質(zhì)量（kgg/m）直徑（mm）截面面積（mmm2）理論質(zhì)量（kgg/m）5.523.760.18622380.12.980562463.019.33628.270.222[23]415.53.260[58]2642.120.706.533.180.26024452.43.550602827.422.19738.480.30225490.93.850633117.224.47(7.5)44.180.34726530.94.170[65]3318.326.00850.270.395[27]572.64.490673526.027.68(8.5)56.750.44528615.84.830[68]3632.028.50963.620.499[29]660.55.180703848.030.21(9.5)70.880.55630706.95.550754418.034.681078.540.617[31]754.85.920805027.039.46(10.5)86.590.68032804.26.310855675.044.501195.030.746[33]855.36.710906362.049.90(11.5)103.90.81534907.97.130957088.055.6012113.10.88835962.17.5501007854.061.7013132.71.040[36]1018.07.9901058659.068.0014153.91.210381134.18.9001109503.074.6015176.71.390401256.69.86011510387.0081.5016201.11.580421385.410.8712011310.0088.8017227.01.780451590.412.4812512272.0096.3018254.52.000481810.014.2113013273.00104.019283.52.230501963.515.4214015394.00121.020314.22.470532206.217.3215017671.001