>> P.277
7-60第7章断面の形状断面積A中立軸より最遠部までの距離e慣性モーメントI断面係数eIZ=回転半径AI=ρ2+)(bad)2bb(3aa(d)++)+(36+a)4a(223abb+bd)42bab++(12a+a)(222bd2222)4bab++(18a+a)(bd22866.02tan°303dd=2d422206.030coscos+241()°30°12Add=⎥⎥⎦⎤⎢⎢⎣⎡32212.030cos24+)°30°cos1(6Add=⎥⎥⎦⎤⎢⎢⎣⎡cosd2d482641(+.030)°30°cos222=22866.02tan°303dd=ddcos577.0°302=422206.030coscos+241()°30°12Add=⎥⎥⎦⎤⎢⎢⎣⎡322104.030cos24+)°30°cos1(6Add=⎥⎥⎦⎤⎢⎢⎣⎡cosd2d482641(+.030)°30°cos222=22828.022tan221dd=°2d4222055.022cos4)°22cos21(12A2121dd=⎥⎥⎦⎤⎢⎢⎣⎡°+322109.022cos4)°22cos21(6A21°21dd=⎥⎥⎦⎤⎢⎢⎣⎡+dd257.022cos48)°22cos21(212°1222=+227854.04dπd=2d44049.0d64πd=33098.0d32πd=4d)(7854.0-4)(π2222dDdD-=2D)64049(-.0)(π4444dDdD-=D-dDD-dD324444098.0)(π=4+22dD22393.08dπd=dd6288π.0)43(=-π442)1152007dπ64.09(d=-π3320243(192=.09(π))4d64-d-π12d-d132.064)π9(22=π)(5708.12)(π2222rRrR-=-22332233424.0))(RR3(4πrrRRr-r---=Rrr)(RRRrr+---).0283(1098.02244eIAIabab1416.3=πababa4π337854.0=baba4π227854.0=2a)(1416cd(=π.3ab)abcd--a)(7854.0)(4=π3333dcbadcba--a-dcbaa-dcb4a33337854.0)(π=cddcabba--3321)(2nsadt++2d61)(14g121443=--==⎥⎦⎤⎢⎣⎡--tlb121う配hglhbdつばのこただし⎥⎦⎤⎢⎣⎡--)(14g16d443lhbd)(2)(14sga121443ndtlhbd++⎥⎦⎤⎢⎣⎡--)(2nsadt++2b[う配つばのこただし=⎥⎦⎤-++-glb(g4lthdb))(4433[⎥⎦⎤-++-)(bg4b)(614433dlthdbAI
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