精品文档---下载后可任意编辑普通工字钢符号:h—高度; i—回转半径; b—宽度; Sx—半截面的面积矩; tw—腹板厚度; 长度: t—翼缘平均厚度; 型号 10~18,长 5~19m; I—惯性矩; 型 号 20 ~ 63 , 长 6 ~19m。 W—截面模量型 号尺 寸(mm)截面面积(cm2)理论重量(kg/m)x-x 轴y-y 轴hbtwtRIxWxixIx/SxIyWyIymmmmmmmmmmcm4cm3cmcmcm4cm3cm10100682454933126745748877114714140807121026416160886811271419318180941699185123220a200100792369237158b1029250225016922a220110333406310226b112358332624025a250116813105017401280b11810425278422297精品文档---下载后可任意编辑28a2801227115508344b1246174815342436432a3201301511080692459b13211626727484c1341217376151036a3601361012601579687831555b1381216574921584c140141735196461440a400142217141086660b144227811139693c14610223847119272745a45015018102322411433855114b152111337591500895118c15412035278156893812250a5001581220141194647218591122142b160141291014855619421171146c16216139109506392026122415156a56016621135106655762342221366165b1681471156850324471424170c170158124714302551148517563a6301761322151551229400429841702194b178151671319817131171771199c7801718014110233932491842205精品文档---下载后可任意编辑