Kiến trúc - Xây dựng
... loading 22 7 22 7 22 8 22 9 23 0 23 2 23 4 23 5 23 5 23 6 24 2 24 2 24 3 24 4 24 6 24 7 24 7 24 8 24 9 25 1 25 3 25 4 25 5 25 5 25 6 25 7 25 9 26 1 26 3 26 5 26 7 27 1 27 2 27 3 27 3 27 4 27 6 ... Factor of safety SI Unit S S - N/m2 (N/m2)-’ m N/m2 N/m2 - Nm m Nm mN-’ N/m2 N/m3I2 m N/m3I2 m N/m2 N/m2 N/m2 - - - N/m2 N/m2 - $1.4 Unsymmetrical Bending YV 7 ... cos2 8 y2 dA + sin2 8 /x2 dA - 2cos8 sin 8 xydA I = I, cos2 8 + I,, sin2 8 - I,,~ sin 28 Substituting for I,, from eqn. (1.4), sin 228 I,= ;(1+cos28)Ixx+;(1-cos28)z,,...