... Rtt (m) 60 0.05 0.06 27 .5 33 30 35 35 isc Lsc (m) Ltc (m) Lmax (m) 75 0.03 0.04 16.50 22 25 20 25 100 0. 02 11 12 12 200 0. 02 11 12 12 300 0. 02 11 12 12 ( theo bng 14-TCVN405 4-0 5) f.1/ on thng chờm ... vừng (300) Tớnh trt (60 ) Rn (Mpa) 1800 420 300 350 25 0 300 25 0 25 0 320 320 24 300 25 0 0.0 32 300 ( 2. 8 1600 C (Mpa) 320 42 (Tra TCN thit k ỏo ng mm 22 TCN 21 1-0 6,Tr.67) Nguyờn tc cu to Thit k kt cu ... 45,0 12. 11 32 92, 723 .84 137,736 14 48,474.58 31 89, 826 .22 138,301 15 51,937.05 29 84,030.98 135,968 16 55,399. 52 27 78 ,23 5.74 133,635 17 58,861.99 26 Giỏ thnh () Tng 75,338. 12 134 ,20 0 Kt lun: Qua...