Ngày tải lên :
04/11/2014, 14:17
... lng ng vi v ng cho phộp [d] =b /25 0 TT q (kN/ m2) [d] b hp hc ht =1 /25 0 (cm) (cm) (cm) (cm) 1,5 25 0 2, 0 0,96 24 0 3,0 0,96 24 0 4,0 0,94 23 5 5,0 0,94 23 5 6 6,0 0, 92 230 7,0 0,9 22 5 7,5 0,9 22 5 11 ... HE (cm) 1,5 2, 0 3,0 4,0 5,0 6,0 7,0 7,5 0,60 0,60 0,59 0,59 0,58 0,55 0,55 0,55 24 0 24 0 23 5 23 5 23 0 22 0 22 0 22 0 7,5 6 6 6 6 5,5 6,5 7,5 8,5 11 11,5 12 12, 5 13 13,5 14 14,5 21 , 82 20,87 19,58 18,80 ... (IPE330/HE260B) (IPE330/HE260B) (IPE300/HE260B) 1,5 12 15, 52 16,07 17,04 18,0818,8 20 20 ,87 22 ,73 Hỡnh 3.1: Biu quan h gia hot ti q v t s b/ht 3 .2. 2 Trng hp 2: Vi v ng cho phộp [d]=b/300 Bng 3 .2: ...