đề thi cơ học kết cấu 1

... - 3.(D -1) ³ 0 (C) (A) (B) H .1. 11e (B) (A) (C) H .1. 11a H .1. 11b (A) (B) (C) H .1. 11c (A) (B) (C) (C) (A) (B) H .1. 11d (A) (B) (C) H .1. 11f Hãû BHTT (A) (B) H .1. 11g (C) ... - Hãû dáưm trỉûc giao (H .11 ) - Khung khäng gian (H .12 ) - Dn khäng gian (H .13 ) - Bn (H .14 ) - V (H .15 ) H.6b H.6a H.7a H.7b H .10 b H .10 a H .11 H .12 H .13 H .15 H .14 H.9a H.9b H.8a H.8b ... Thóm caùc bọỹ õọi 1 1 2 2 3 3 4 4 5 5 Hóỷ BBH Hóỷ BBH H .1. 10a (A) (B) H .1. 10b (A) (B) H .1. 10c Mọỳi haỡn (A) (B) H .1. 10d (A) (B) H .1. 10e (A) (B) (B) (A) H .1. 10f (BHTT) (BHTT) (BH)...

... â.a.h.N: 1 â.a.h.N 4 -10 H.3.7e â.a.h.N 10 -11 â.a.h.N 2-3 â.a.h.V B 1 5/3 â.a.h.V A P = 1 V A dd d V B dd 2 14 13 12 3 H A 1 A 11 9 6 54 B 10 d 7 8 2/3 h d2 h d 3 4 h d 3 5 1 1 2 2 a 1cosa 1cosa ... 0,9375 y tr y ph z 1, 25 0,25 2m 1, 5m 2,5m 2m q q 1, 6m d d q 1, 5 A k H.3 .11 i â.a.h.M k B CÅ HC KÃÚT CÁÚU 1 Page 85 å 0 4 = tr M Þ -N 10 -11 .h + V A .d = 0 Þ N 10 -11 = h dV A . Þ â.a.h.N 10 -11 º ÷ ø ư ç è ỉ h d .â.a.h.V A ... õ.a.h. N 10 -11 : Thổỷc hióỷn mỷt cừt (2 - 2) qua thanh 11 - 10 vaỡ thi ỳt lỏỷp phổồng trỗnh õổồỡng aớnh hổồớng N 10 -11 ổùng vồùi caùc trổồỡng hồỹp cuớa lổỷc P = 1 di õọỹng: - P = 1 di õọỹng...

... tçm. H.4 .10 A B P z l CÅ HC KÃÚT CÁÚU 1 Page 11 4 Thanh l i FE. 1 im N ik N i i im ik l FE NN . . . (1) (2) (3) (4) (5) (6) 1 - 2 d 1/ E.F 2P 1 2.P.d/E.F 1 - 3 d 1/ E.F 3P 2 6.P.d/E.F ... (H.4 .14 ). kk i imkim MPP 11 1 1 j +D=D å = m j jkmjk PP 22 1 D=D å = Theo âënh l tỉång häù thç mkk PMP 2 211 1 D=+D j II. Âënh l tỉång häù vãư cạc chuøn vë âån vë (Âënh l J. Maxwell 18 64): ... d. 2 1/ E.F -2P 2 - 2 4 2 .P.d/E.F 4 - 2 d 1/ E.F -P -1 P.d/E.F 3 - 4 d 1/ E.F 0 0 0 3 - 6 d. 2 1/ E.F P 2 2 2 2 .P.d/E.F 4 - 6 d 1/ E.F -P -1 P.d/E.F 5 - 6 d 1/ E.F -P -1 P.d/E.F 5 - 3 d 1/ E.F...

... - 3.(D -1) ³ 0 (C) (A) (B) H .1. 11e (B) (A) (C) H .1. 11a H .1. 11b (A) (B) (C) H .1. 11c (A) (B) (C) (C) (A) (B) H .1. 11d (A) (B) (C) H .1. 11f Hãû BHTT (A) (B) H .1. 11g (C) ... Thóm caùc bọỹ õọi 1 1 2 2 3 3 4 4 5 5 Hóỷ BBH Hóỷ BBH H .1. 10a (A) (B) H .1. 10b (A) (B) H .1. 10c Mọỳi haỡn (A) (B) H .1. 10d (A) (B) H .1. 10e (A) (B) (B) (A) H .1. 10f (BHTT) (BHTT) (BH) ... - Hãû dáưm trỉûc giao (H .11 ) - Khung khäng gian (H .12 ) - Dn khäng gian (H .13 ) - Bn (H .14 ) - V (H .15 ) H.6b H.6a H.7a H.7b H .10 b H .10 a H .11 H .12 H .13 H .15 H .14 H.9a H.9b H.8a H.8b...