最好的工字钢国标规格

尺寸/mmh1012.614161820a20b22a22b25a25b28a28b32a32b32c36a36b36c100126140160180200200220220250250280280320320320360360360b6874808894100102110112116118122124130132134136138140d4.555.566.5797.59.58108.510.59.511.513.5101214t7.68.49.19.910.711.411.412.312.3131313.713.715151515.815.815.8r6.577.588.5999.59.5101010.510.511.511.511.5121212r13.43.53.844.34.54.54.84.8555.35.35.85.85.866614.34518.11821.51626.13130.75635.57839.57842.12846.52848.54153.54155.40461.00467.15673.55679.95676.4883.6890.8811.26114.22316.8920.51324.14327.92931.06933.0736.52438.10542.0343.49247.88852.71757.74162.76560.03765.68971.341截面面积理论质量/cm2/(kg/m)Ix/cm42454887121130166023702500340035705020528071107480111001160012200158001650017300参考数值X～XWx/cm3ix/cm4977.51021411852372503093254024235085346927267608759199624.145.25.766.587.368.157.968.998.7810.29.9411.311.112.812.612.314.414.113.8Y-YWy/cm39.7212.716.121.22631.533.140.942.748.352.456.661.270.87681.281.284.387.4Ix:Sx8.5910.81213.815.417.216.918.918.721.621.324.624.227.527.126.830.730.329.9Iy/cm43346.964.493.1122158169225239280309345379460502544552582612iy/cm1.521.611.731.8922.122.062.312.272.42.42.52.492.622.612.612.692.642.6工字钢国标规格

尺寸/mmh40a40b40c45a45b45c50a50b50c56a56b56c63a63b63c12①24a①截面面积理论质量/cm2/(kg/m)tr12.512.512.513.513.513.514141414.514.514.51515157101010.5r16.36.36.36.86_86.87777.37.37.37.57.57.53.5555.386.11294.112102.112102.446111.446120.446119,304129.304139.304135.435146.635157.835154.658167.258179.85817.81847.74152.54154.55467.59873.87880.15880.4287.48594.5593.654101.504109.354106.316115.108123.9121.407131.298141.18913.98737.47741.24542.825Ix/cm42170022800239002220033800353004650048600506006560068500714009390098100102000436457048006550参考数值X～XWx/cm3ix/cm10901140119014301500157018601940208023402450255029803160330072.738140048515.915.615.217.717.417.119.719.4192221.621.324.524.223.84.959.779.5710.9Y-YWy/cm393.296.299.611411812214214615116517418319320421412.748.450.456.6b14214414615015215415816016216616817017617818074116118122d10.512.514.511.513.515.512141612.514.516.513151758108.5Ix:Sx34.133.633.238.63837.642.842.441.847.747.246.754.253.552.910.320.720.423.8Iy/cm466069272785589493811201170122013701490156017001810192046.9280297345iy/cm2.772.712.652.892.842.793.073.012.963.183.163.163.313.293.271.622.422.382.5140040040045045045050050050056056056063063063012024024027016.516.516.51818182020202121212222228.4131313.724b①27a①工字钢国标规格

尺寸/mmh27b①30a①30b①30c①55a①55b①55c①270300300300550550550b124126128130168168170d10.59111312.514.516.5t13.714.414.414.4212121r10.511111114.514.514.5r15.35.55.55.57.37.37.359.95461.25467.25473.254134.185145.185156.18547.06448.08452.79457.504105.335113.97122.605截面面积理论质量/cm2/(kg/m)Ix/cm46870895094009850629006560068400参考数值X～XWx/cm3ix/cm50959762765722902390249010.712.111.811.621.621.220.9Y-YWy/cm358.963.565.968.5164170175Ix:Sx22.925.725.42546.946.445.8Iy/cm4366400422445137014201480iy/cm2.472.552.52.463.193.143.08符号意义：

h—高度；r1—腿端圆弧半径；b—腿宽度；l—惯性矩；

d—腰厚度；W—抗弯截面系数；t—平均腿厚度；i—惯性半径；C—形心；

r—内圆弧半径；S—半截面的静力矩。