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1、5.5螺旋箍筋柱的承载力螺旋箍筋柱的承载力计算计算 As,fy As,fy s80mm80mm s80mm80mm dcor dcor Acor Ass1，fyv Acor Ass1，fyv A,fc A,fc c1cr4ffc1cr4ffAs,fy As,fy s80mm80mm s80mm80mm dcor dcor Acor Ass1，fyv Acor Ass1，fyv A,fc A,fc As,fy As,fy dcor dcor s8cm8cm Acor Ass1,fyv Acor Ass1,fyv s8cm8cm A,fc A,fc As,fy As,fy s8cm8cm s8cm
2、8cm dcor dcor Acor Ass1,fyv Acor Ass1,fyv A,fc A,fc As,fy As,fy dcor dcor s8cm8cm Acor Ass1,fyv Acor Ass1,fyv s8cm8cm A,fc A,fc dcor Acor Ass1 N螺ccorrcorys=4f AAf A yscf AANf 普c1fysf A corAN普箍ysf Acf Affc1cr4fyvAss1 s s fyvAss1 r r dcor Acor Ass1 dsdcor2r02sin2yvss1cror2 f As df Ayvss12yvss1rcor2 f As dccorrcorys4f AAfNA 螺corss1ccoryvys2dAf Aff AsN 螺s corss1ccoryvys2dAf Aff AsN 螺corss1ss0dAAsccoryvysss02AfNAff A 螺 Ass0 1、l/d 12的受压柱 否则按普通箍筋柱计算 2、Ass0 0.25A s N螺 1.5 N普 否则按普通箍筋柱计算