=>I?@4 AB?C\r#$Dz ,&'(3&'EF@\rG # $ $ H P I J K L\rM / N O 3 P K L\rM / N Q\r125 mmx 125 mmxl2 mm RS\ri. - 3.83 cm = 38.3 mm, A. = 28.9 cm2 = 2.89 x 101 mm2\r41 1\rTUV, ] = & =38.3m m ,K\]^_`abcde\rA - \ 62.66\rq\rDT Q235\rP crst = 235 MPap, T = 206 GPap, %, = 1 3 2 ,f</1`ij\rklmn]^opqr\racr =1(235 6.8x10-3 * 62.662)x1()6]\r= 208.3 x 106 Pa = 208.3 MPa\rsbcoptu\rFcr =07,4 = 208.3x1()6 x 2x2.89x10-3\r= 1204 xlO3N = 1204 kN\rbcvwxy?z\r` = Z = 1.5>`” =1.48\rF.\r{bc|a'Uxy3\r2> }e~\rKT?$H\r4 “ = 2 x 28.9x 10_4 _ 2 x 23 x 10-6 * 12 = 5.288 x 10-3 m2 = 5.288 xlO3 mm2\rs#$
qr\rcr = 9 = 8 0 0 x 1 0 =151.3xlO6Pa = 151.3MPa <[o-]\rA,, 5.288 x IO-3\rM}eUxy3
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