tieu luans co ket cau nang cao
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7/24/2019 Tieu luans Co ket cau nang cao
1/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
M U
C kt cu nng cao l !"t !n h#c t$ang %& 'cung c( cho h#c )i*n cao h#c c+c
nghnh ,- /ng Dn 0ng 1 Cng nghi2( 1 34 thut 5- /ng Cng t$6nh giao thng
nh7ng kin th8c c %9n ) c+c (hng (h+( (hn t;ch kt cu ngoi !ii ? l@
thu-t Ao' =>ng thi ch $a )i*"c +( 0ng l@ thu-t t$*n )o )i*"c t;nh to+n thit k cng
t$6nh ng thanh' t! (hEng hoF"c t! ch&u un.
ua !n h#c n- I! ) c+c h#c )i*n =J =Kc t$ang %& c+c kin th8c )< c9 hai
(hng (h+(: tLng %Mc ) t$/c ti(' NOc %i2t l (hng (h+( (hn t;ch t$/c ti( t9i
t$#ng giMi hnQRli!it anal-i. Ugoi $a' I! ) c+c h#c )i*n cn =Kc t$ang %& kin
th8c )< +( 0ng (hng (h+( !a t$n =W c8ng thXo (hng (h+( tLng %Mc. I! hiu
=Kc $Y hn kh9 nFng ch&u t9i th/c cZa )"t li*"u ) kt cu tL =[ %it c+ch \ 0ng tt
hn c+c h*" an ton khi thit k kt cu = =9! %9o t;nh %
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
BI
A/. L THUYT:1/. Tiu chun chy do l g? Thit lp cng thc tiu chun chy do Von Miss cho !ito"n t#$ ch% nht ch&u u'n. (i)n lun
*/. +,y t-nh !y c"ch phn tch ng 0 2n do c34 h) th4nh dn 5 !i to"n 6 th4nh.
B/. BI TON DM:1/. Tnh 7& t- t-8c t-ung h94 2n h:i 7 t-8c t-ung h94 do c34 tit di)n 2, cho. ;uy -4$$n gi M> 7 $$n chy do Mpng 7 *SS( Pa I GPa = =
Qch thBS SS *S SS
C/. BI TON TM CHU UN:_"c 2&nh ti t-Lng gi
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
! !
4 4
O
Z% Hi)n5
Z% Hi)n hnh hLcZ% Hi)n 7a tiu chun chy
do
4E$G ! E$G T-sc4 Von Miss*.^ 1.* b
HV: Bi Ug#c Sn M(: 3T,D CTGT bd SHV: dbbj
T$ang d
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
BI LM
A/. L THUYT: (Cu !" #u $%&$/. T'u #)u*+ #),- 0 1" 234 T)'56 178 #9+2 6)# 6'u #)u*+ #),- 0 ;0+ M'"' 60?+ 6@ #) +)76 #)u u+. B'E+ 1u7+
$.$ T'u #)u*+ #),- 0.. S/ $a =i cZa l@ thu-t Ao."c Ht c#u thng thBng 2BIc tnh to"n tho h4i !B $n ]e thuyt 2n h:i to"n hLc 2BIc s d8ng -Dng -,i 2Ntnh to"n c"c Ht c#u 7 $n ny d`4 t-n cC sf fuan h2 tu-n t;nh gi7a 8ng ut)%in ng . "c ng su#t ny phi nh hCn ng su#t cho phXp 2BIc tnh !Ang ng su#tnguy hiN$ c34 7t li)u chi4 cho h) s' 4n ton l7n chuyNn lpd`ng. Vi)c tU hIp> tnh to"n gi%4 c"c ng su#t !4n 2[u 7 H1> H*> . . . G S E1.1G
t-ong 2K H1> H*> . . . l c"c hAng s' 7t li)u nhB so> to7 2BIc 0"c 2&nh !Ang th nghi)$.V th nh#t c34 E1.1G 2BIc gLi l h$ ngBng chy do Eyild runctionG
r rEsi> HiG E1.*G7 l $Dt h$ tUng Ou"t tho ng su#t. MFt chy do r S !iNu diqn !fi $Dt siu $Ftt-ong Hhng gi4n ng su#t chiau> si
v'i 7 tiuchun chy do cK thN !iNu diNn tho c"c ng su#t chnh5
rEs1> s*> s6> H1> H*> . . . G S E1.6G
HV: Bi Ug#c Sn M(: 3T,D CTGT bd SHV: dbbj
T$ang
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
v'i 7 h$ ngBng chy do th 2Dc lp 7 ngh4 l5
r Ez*sz6sG E1.^Gt-ong 2K z*sz6sl[n lBIt l !#t !in th h4i 7 th !4 c34 tnso- 2D l)ch ng su#t> 7 s 17 s*tRng ln song t} l)s1/s*7n Hhng 2Ui. Zo 2K> chng t4 phi th`c hi)n th nghi)$ nhiau l[n 2N 0"c 2&nh 7&t- chy do. Tuy nhin> 2'i 7s>SG. viN$ 1E6s>s>SG Et-onghnh 1.1 G nA$ t-n $Ft chy do t-ong $Ft phwng s1Ps* . Wu 7t li)u l 2wng hB 17 6h4y *7 l 2'i 0ng 7 do s` 2'i 0ng 2iN$ ( 17 1cmng gi'ng nhB 2iN$
1s t=o -4 th$ 2iN$ (1> (*> (6> (7 1> *> 6> 2au nA$ t-n $Ft chy do. (y
HV: Bi Ug#c Sn M(: 3T,D CTGT bd SHV: dbbj
T$ang m
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
gi> chng t4 cK 1* 2iN$ cjng nA$ t-n $Ft chy do tJ 1 2iN$ cK 2BIc tJ th nghi)$.W'i nh%ng 2iN$ 2K l=i !Ang nh%ng 2Bng cong t-Cn> chng t4 s cK 1 $Ft chy do Ehnh1.1G.
+nh .15 ng su#t t-n $Ft phwng 1 6 *> E SG =
..d Ti*u chun T$Xca ? St VXnant
Tiu chun chy do cK thN ph"t !iNu nhB s4u5;` chy do 0y -4 Hhi ng su#t ct c`c c`c 2=i 2=t t $Ft chy do c34 T-sc4 l hnh lRng t-8 cK
t-8c s4o cho . Tit di)n c34 lRng t-8 ny l $Dt hnh !"t gi"c 2au c=nh nDitip t-ong 79ng t-9n !"n Hnh *1/*HTTiu chun chy do tho c"c !#t !in z*> z6cK thN !iNu diqn nhB s4u5
rEz*s> z6sG z6*sP*|z*6sP6{H*Tz**s b {HTz*sP{H{T S E1.1GT-ong Hhng gi4n c"c ng su#t> gi4o tuyn c34 $Ft tiu chun T-sc4 7 $Ft
phwng 0P 0y cK d=ng llips5*0 b *0y *p E1.1G
.. Ti*u chun )on iX
Tiu chun chy do cK thN ph"t !iNu nhB s4u5;` chy do 0y -4 Hhi ng su#t tip !"t di)n 2=t t tiu chun chy do 7on Miss cK d=ng5EP G*b EP G*b E P G* {H*7 E1.1^G
T-ong Hhng gi4n ng su#t chnh> E1.1^G !iNu diqn $Dt hnh t-8 t-9n cK t-8c t-jng 7
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
Tiu chun c34 7on Miss 2'i 7 My> M0y E $ $n t-n $Dt 2Cn 7& chiau di G"c !in ph8 5 k0 > kyE l`c ct t-n $Dt 2Cn 7& chiau di G
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HV: Bi Ug#c Sn M(: 3T,D CTGT bd SHV: dbbj
T$ang j
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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- (5 5 - 5- + + = E1.6SG
Whn h4i 7 7
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7/24/2019 Tieu luans Co ket cau nang cao
9/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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T-sc4 t-f nn 2Cn gin hCn. MFt chy do T-sc4 7 7on Miss -#t g[n nh4u nn ti
t-Lng gi
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7/24/2019 Tieu luans Co ket cau nang cao
10/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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7/24/2019 Tieu luans Co ket cau nang cao
11/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
B/. BI TON DM: (;IIPQ&$/. T+) ! 6 6R# 6u+2 )S K"+ )' !" 6R# 6u+2 )S 0 # 6'56 'E+ K #)0. Vu- 9=+ 2'W' )X+ K"+ )' M= !" 9=+ #),- 0 M8+2 !W' 1Z# 6'56 'E+ > #),-0 )0"+ 60"+.
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Zo $Ft ct cK t-8c 2'i 0ng> t-Lng t$ nA$ t-n t-8c ny 7 $o$n tnh 2'i 7
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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T$ang
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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T$ang j
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7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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7/24/2019 Tieu luans Co ket cau nang cao
19/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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-
7/24/2019 Tieu luans Co ket cau nang cao
21/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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7/24/2019 Tieu luans Co ket cau nang cao
22/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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-
7/24/2019 Tieu luans Co ket cau nang cao
23/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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6.{|1S.|{6 1.*^{ PS.|{6 S.|16
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7/24/2019 Tieu luans Co ket cau nang cao
24/45
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-
7/24/2019 Tieu luans Co ket cau nang cao
25/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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-
7/24/2019 Tieu luans Co ket cau nang cao
26/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
(iNu 2: $o$n5
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-
7/24/2019 Tieu luans Co ket cau nang cao
27/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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-
7/24/2019 Tieu luans Co ket cau nang cao
28/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
[ ] [ ]1 1S
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T
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T$ang w
-
7/24/2019 Tieu luans Co ket cau nang cao
29/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
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T$ang y
-
7/24/2019 Tieu luans Co ket cau nang cao
30/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
*
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T$ang db
-
7/24/2019 Tieu luans Co ket cau nang cao
31/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
V
{
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-
7/24/2019 Tieu luans Co ket cau nang cao
32/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
*
6
T
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vD l
-
7/24/2019 Tieu luans Co ket cau nang cao
33/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
od chBCng t-nh E0$ ph[n ph8 l8cG5
HV: Bi Ug#c Sn M(: 3T,D CTGT bd SHV: dbbj
T$ang dd
-
7/24/2019 Tieu luans Co ket cau nang cao
34/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
Qt Ou5P Hh
-
7/24/2019 Tieu luans Co ket cau nang cao
35/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
T
V
{
|
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-
7/24/2019 Tieu luans Co ket cau nang cao
36/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
C/. BI TON TM CHU UN: (;IIIP_&$. T)'56 178 #` t4 cK5
R$ p f$$
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-
7/24/2019 Tieu luans Co ket cau nang cao
37/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
E GE GE GE G S
* *$ $ $
H$. .$ H .H $ .$ . .$ $. . $ .$ . .$.
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a
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phBCng t-nh E.1.*G cK thN !iNu diqn dB
-
7/24/2019 Tieu luans Co ket cau nang cao
38/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
ku+ )lK9l+2 )c#
~Li $u&
> u&
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M
-
7/24/2019 Tieu luans Co ket cau nang cao
39/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
* *
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1cos sin
1cos sin
u u ) v vt t
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v $ v $ t t
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h
= +& & &
($.h_&Tho 2&nh lut chy do ph'i hIp tiu chun 7on Miss f E1.6{G t4 cK5
E* G$ $$
u! !
!
= =
& && >
E* P G$u
! !!
= =& && ($.hj&
*
6
$
$!
+
=
& &
& >
*
6
$
!
+
=
& &
&
($.hP&Th E1.^G 7o E1.6{G t4 2BIc5
* *1
6 $ $ = + +
& & & &
vFt * *$ $! ! ! ! = +
($.hQ&
HV: Bi Ug#c Sn M(: 3T,D CTGT bd SHV: dbbj
T$ang dy
-
7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
T4 cK5 E G E G* *
( ( (
$ $ $$
D ! ! ! !
h h ! ! h
= + = + =
& && & &
($.ig&
Qhi chy do 1 nn5
* * * **
6 6
( (
$ $ $ $
D h = + + = + +
& && &&& & &
($.i$&Nm+2 1en+2 6'u 6?+ 0 6+ 60"+ >\ 'E+ 6#)
* **
6
(
$ $
x D.z .z
h = = + + & && && &
$.$.$. B'E+ 1u7+
ung 5 M Mp M- S
ung 5 M- Mp M S
ung 5 Mp M- Mp/* S MPMp/* PM-
ung ~5 Mp/* M- S PM- PMp/* M
ung ~5 S M- PMp M
ung Q5 S M M- PMp
HV: Bi Ug#c Sn M(: 3T,D CTGT bd SHV: dbbj
T$ang b
Hnh 1.13.Ti.! "h!% '% Mie "h' r%"h! !%
Mr
/
Mp
M
45'45' M
p/Mp
Mp
-Mp
1
C
2
3
6
7
8
L
-Mp/
-Mp/
Mp/
(r,
)
-
7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
ung Q]5 Mp/* M S PM Mp/* M- PMp
ung ]5 Mp M Mp/* S M- PMp/* PM
ung (Z5 $ S> S
ung Z+5 $ S> S
ung +z5 $ S> Sung z(5 $ S> S
viN$ 5 M- S> M Mp $ S>
S> $ P1/*
viN$ (5 M- Mp/ 6 > M */ 6 Mp $ S> S
viN$ 5 M- Mp> M Mp $ S>
S> $
viN$ Z5 M- */ 6 Mp> M Mp/ 6 $ S> S
viN$ 5 M- Mp> M S $ S>
S> $ P*
viN$ 5 M- Mp/ 6 > M PMp/ 6 $ S> S> $ P
viN$ ~5 M- S> M PMp $S> S> $
P1/*
viN$ +5 M- PMp/ 6 > M P*/ 6 Mp $ S> SviN$ 5 M- PMp> M PMp $ S>
S> $
viN$ z5 M- P*/ 6 Mp> M PMp/ 6 $ S> S
viN$ 5 M- PMp> M S $
S> S> $ P*
viN$ ]5 M- PMp/ 6 > M bMp/ 6 $ S> S> $ P
N)7+ FG6
P Wu chx 0Xt n4 t-n 7 n4 dB
-
7/24/2019 Tieu luans Co ket cau nang cao
42/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
P Whn t-n Ehnh 1.G> t4 th#y s` chy do 7n cK thN chB4 0y -4 Hhi5 Mp M- */6 MphoFc Mp M */ 6 MpE7jng (> Z> ~+> zQG. V th Hhi tnh to"n 7Ci
tiu chun Von Miss t4 cK thN chLn t-Bng ng su#t $ M - hoFc M !Ang */ 6 Mp.
P ;` chy do 7n cK thN 0y -4 Hhi M - M Mp/ 6 MpE2iN$ ]> G.
P ' !W' 6@ 6S+ #)u u+ >'+ 1" 2' 6] 0 ()3+) $.$g& :
b Thng thBng MM- S t-Bng ng su#t Ht hIp ny s ft-n cung .
b T=i t$ - S> cK thN chLn M - Mp> MMp t=i - 4 cK thN chLnM- S> M*/ 6 Mp.
P ' !W' 6@ 6S+ #)u u+ >'+ 1" +2":
b Thng thBng MM- t-Bng ng su#t Ht hIp ny s f t-ncung
b T=i t$ - S> cK thN chLn M- Mp> M*Mp t=i - 4 cK thN chLnM-*/ 6 Mp> MMp.
%. 8 R+2 !"0 >"' 60?+ 6@ 6S+ #)u u+ #)u 6,' 6c+2 8)+ > +)e )3+) %g:
HV: Bi Ug#c Sn M(: 3T,D CTGT bd SHV: dbbj
T$ang
M
Mr
Hnh 1.14.Mr, M
r% "h! !%, 9i.%
:;
-
7/24/2019 Tieu luans Co ket cau nang cao
43/45
Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
! !4 4
O
oHnh 2V!T! t$n ng! %i*n ch&u t9i t$#ng (hn % =
-
7/24/2019 Tieu luans Co ket cau nang cao
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
***1 1
* *
P$ f$ $
% = =
*1E G*$
$ $ f$
$ = + = +
p d8ng 2iau Hi)n !in t=i -S> t4 cK5
* *
*{ {$f$ P $
% = =
q)' s >:
@hBCng t-nh cn !Ang5*
P$
=
E G*
$
. P$ $H
.$
= + =
*$P
$ $ $ C
= +
T-ong 2K l hAng s' Ht hIp 2BIc 0"c 2&nh !fi 2iau Hi)n lin t8c c34 $ > t=i-!5
*
* { {( ($ %P % P
% =
= =
{($ %P C
%=
= +
6
P%C
=
MFt Hh"c> 2iau Hi)n !in t=i -4 l S$ = .
S* 6(P P%
a a
+ = 1 6
1^P PP f
= =
Tho phBCng ph"p cn t-n 5MDt c"ch t-`c Ou4n t4 cK thN chLn cC c#u ph" hu} nhB hnh 21. vy l !i to"n ch&u tit-Lng 2'i 0ng. Qhi cC c#u 2=t chy do t=i $Xp 7 t$ c34 t#$ t-9n th c"c ng su#t lcny tBCng ng 7
-
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Tiu lun:C kt cu nng cao GVHD: PGS.TS. Bi Cng Thnh
viau Hi)n !in cho t#$ t-9n !& ng$ t-n !in 5T=i 4 *.^$> 1 * Sv C | C = + =&
T=i S> t4 cK Sv v=&
Vy t4 cK * SC = & S1 *.^v
C = &
Vy t4 cK5S E1 G*.^
|v v= & & E{G
Z`4 7o ESG5.
S1 1
*.^
vv
| | |
= =
& E{{G
ng c34 nDi l`c5*.^ *.^
SS
S S
* * *
*.^6 6 6P
P P
vx z || v
| = = =
&&& & E{|G
ng su#t ngo=i tho E{1G5
1.*S S
S
6{E1 G**.^ 6I z|x fvz fv || fv = = = & & & E{^G
n !Ang cng su#t nDi 7 cng su#t ngo=i 5
& & * 6
*.*1^6
P Pf + = E{G
NHtN vT:Qhi tnh cn t-n djng tiu chun 7on Miss t4 th#y Ht Ou ti t-Lng gi
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