Tài liệu TCXDVN 356:2005 pdf

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TCXDVN 356 : 2005
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KÕt cÊu bª t«ng vµ bª t«ng cèt thÐp
Tiªu chuÈn thiÕt kÕ
Concrete and reinforced concrete structures – Design standard

hµ néi - 2005


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Bộ Xây dựng

cộng hoà xã hội chủ nghĩa Việt Nam

Độc lập - Tự do - Hạnh phúc
Số: 34 /2005/QĐ-BXD


Hà nội, ngày 10 tháng 10 năm 2005


Quyết định
Về việc ban hành TCXDVN 356 : 2005 "Kết cấu bê tông và bê tông cốt thép - Tiêu chuẩn
thiết kế"

bộ tr@ởng Bộ Xây dựng

- Căn cứ Nghị định số 36 / 2003 / NĐ-CP ngày 4 / 4 / 2003 của Chính phủ quy định
chức năng, nhiệm vụ, quyền hạn và cơ cấu tổ chức của Bộ Xây dựng;

- Xét đề nghị của Vụ trWởng Vụ Khoa học Công nghệ,


quyết định

Điều 1. Ban hành kèm theo quyết định này 01 Tiêu chuẩn xây dựng Việt Nam :
TCXDVN 356 : 2005 "Kết cấu bê tông và bê tông cốt thép - Tiêu chuẩn
thiết kế".

Điều 2. Quyết định này có hiệu lực sau 15 ngày, kể từ ngày đăng công báo
Điều 3. Các Ông Chánh văn phòng Bộ, Vụ trWởng Vụ Khoa học Công nghệ và Thủ
trWởng các đơn vị có liên quan chịu trách nhiệm thi hành Quyết định này ./.


K/t Bộ tr@ởng bộ xây dựng
thứ tr@ởng
Nơi nhận:
- NhW điều 3
- VP Chính Phủ
- Công báo
- Bộ TW pháp Đã ký
- Vụ Pháp chế
- LWu VP&Vụ KHCN
Nguyễn Văn Liên







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9:;<&-{2.&-:1-&9:;<&2`/& /<.&2T-& ^_&x:G<&Rn-&-L3<@&dn-&_.¼<@&<@.:G<@&@a2&]f:&
-LK2&9>2&2\Q&Z:;<&]N&2¾-&jQ/&-:1-&9:;<&<@.:G<@w&
µ
.Nd&cey<@&2T-& ^_&x[2&RS<.&<.e&-|&HT&@:u/&9:;<&-{2.&-:1-&9:;<&2T-& ^_&
S
&]N&9:;<&
-{2.&-:1-&9:;<&<@/<@&2`/&2\Q&Z:;<&
0
bh
J&Z.?<@&ZY&R1<&_.k<&2[<.&2.SQ&<^<&]N&Z^3w&

A 9:;<&-{2.&-3N<&FE&-:1-&9:;<&<@/<@&2`/&FG&-?<@w&
TCXDVN 356 : 2005

10

b
A

9:;<&-{2.&-:1-&9:;<&2`/&]X<@&FG&-?<@&2.SQ&<^<w&
bt
A

9:;<&-{2.&-:1-&9:;<&2`/&]X<@&FG&-?<@&2.SQ&Z^3w&
red
A

9:;<&-{2.&-:1-&9:;<&jQ0&Rq:&2`/&2\Q&Z:;<J&x[2&RS<.& O3&2.|&9É<&ë&R:lQ&EBDBZY$
1loc
A

9:;<&-{2.&FG&-?<@&2.SQ&<^<&2K2&FEw&
0b
S
′
,
0b
S

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Z^3&RT:&]f:&-LK2&-LQ<@&.ß/w&

0s
S ,
0s
S
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S
]N&
S
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RT:&]f:&-LK2&-LQ<@&.ß/w&
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red
I

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9É<&ë&R:lQ&EBDBZY$
s
I

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0b
I

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0s
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0s
I

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S
&]N&
S
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RT:&]f:&-LK2&-LQ<@&.ß/w&
red
W

d?&dO<&Z.[<@&QT<&2`/&-:1-&9:;<&jQ0&Rq:&2`/&2\Q&Z:;<&RT:&]f:& f&2.SQ&Z^3&ë&F:G<J&
x[2&RS<.&<.e&RT:&]f:&]Ë-&c:;Q&RN<&.å:& O3&2.|&9É<&ë&R:lQ&EBDBZB&
DBDBC S?-$LT-$#UV'0$1N$#U[$-3#$#456$#UO'0$#9,#$@9G'$'0\'0$-]\$-"!$;9G'$
S &Zý&.:;Q&2T-& ^_&9>2*&
− Z.:&-å<&-I:&2¶&./:&]X<@&-:1-&9:;<&FG&-?<@&2.SQ&Z^3&]N&2.SQ&<^<&93&-[2&9K<@&2`/&
<@3I:&cB2*& S &F:YQ& S&2T-& ^_&Rn-&-L3<@&]X<@&2.SQ&Z^3w&
− Z.:&-3N<&FE&]X<@&FG&-?<@&2.SQ&<^<*&S &F:YQ& S&2T-& ^_&Rn-&ë&F:G<&2.SQ&<^<&{-&.g<w&
− Z.:&-3N<&FE&]X<@&FG&-?<@&2.SQ&Z^3*&
+ RT:&]f:&2[2&2\Q&Z:;<&2.SQ&Z^3&c;2.&-Ad*&F:YQ& S&2T-& ^_&Rn-&ë&F:G<&2.SQ&Z^3&
<.:lQ&.g<w&
+ RT:&]f:&2\Q&Z:;<&2.SQ&Z^3&Ró<@&-Ad*&F:YQ& S&2T-& ^_&Rn-&-LG<&-3N<&FE&-:1-&9:;<&
<@/<@&2`/&2\Q&Z:;<w&
S
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&Zý&.:;Q&2T-& ^_&9>2*&
− Z.:&-å<&-I:&2¶&./:&]X<@&-:1-&9:;<&FG&-?<@&2.SQ&Z^3&]N&2.SQ&<^<&93&-[2&9K<@&2`/&
<@3I:&cB2*&
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&F:YQ& S&2T-& ^_&Rn-&-L3<@&]X<@&2.SQ&<^<w&
− Z.:&-3N<&FE&]X<@&FG&-?<@&2.SQ&<^<*&F:YQ& S&2T-& ^_&Rn-&ë&F:G<&2.SQ&<^<&<.:lQ&
.g<w&
− Z.:&-3N<&FE&]X<@&FG&-?<@&2.SQ&Z^3&RT:&]f:&2[2&2\Q&Z:;<&2.SQ&Z^3&c;2.&-Ad*&F:YQ&
S&2T-& ^_&Rn-&ë&F:G<&2.SQ&Z^3&{-&.g<&RT:&]f:&2\Q&Z:;<&2.SQ&Z^3&c;2.&-Ad8&
TCXDVN 356 : 2005

11

DBDBD ^0O=9$(_-$12$'`9$(_-$
F &&<@3I:&cB2&-Ë_&-LQ<@w&
M &&d?dO<&QT<w&
t
M &&d?dO<&x3¾<w&
N &&cB2&9>2w&
Q &&cB2&2¾-8&
DBDBE S?-$LT-$#UV'0$1I#$(9G!$
b
R ,
serb
R
,
&2ev<@&RE&2.SQ&<^<&-{<.&-3[<&9>2&-LK2&2`/&FG&-?<@&t<@&]f:&2[2&-LI<@& [:&@:f:&.I<&
t&<.\-&]N& t&./:w&
bn
R &2ev<@&RE&2.SQ&<^<&-:GQ&2.QW<&9>2&-LK2&2`/&FG&-?<@&t<@&]f:&2[2&-LI<@& [:&@:f:&
.I<& t&<.\-&}2ev<@&RE&cb<@&-LK•w
bt
R ,
serbt

R
,
&2ev<@&RE&2.SQ&Z^3&-{<.&-3[<&9>2&-LK2&2`/&FG&-?<@&t<@&]f:&2[2&-LI<@& [:&@:f:&.I<&
t&<.\-&]N& t&./:w&
btn
R &2ev<@&RE&2.SQ&Z^3&-:GQ&2.QW<&9>2&-LK2&2`/&FG&-?<@&t<@&]f:&2[2&-LI<@& [:&@:f:&
.I<& t&<.\-w&
bp
R &2ev<@&RE&2`/&FG&-?<@&Z.:&F¾-&RkQ&2.SQ&t<@&cB2&-Lef2w&&
s
R ,
ser,s
R 2ev<@&RE&2.SQ&Z^3&-{<.&-3[<&2`/&2T-& ^_&t<@&]f:&2[2&-LI<@& [:&@:f:&.I<& t&<.\-&
]N& t&./:w&
sw
R &2ev<@&RE&2.SQ&Z^3&-{<.&-3[<&2`/&2T-& ^_&<@/<@&x[2&RS<.& O3&2[2&0GQ&2kQ&2`/&
R:lQ&FBCBCBEY$
sc
R &2ev<@&RE&2.SQ&<^<&-{<.&-3[<&2`/&2T-& ^_&t<@&]f:&2[2&-LI<@& [:&@:f:&.I<& t&<.\-w&
b
E &d?&RQ<&RN<&.å:&F/<&RkQ&2`/&FG&-?<@&Z.:&<^<&]N&Z^3w&
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E &d?&RQ<&RN<&.å:&2`/&2T-& ^_8&
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^_&t<@&]f:&-m<@&@:/:&R3I<&cNd&]:;2&2`/&2\Q&Z:;<w&
sp
σ
J&
sp

σ
′
&-eg<@&t<@&cN&t<@&HQ\-&-Lef2&-L3<@&2T-& ^_& S &]N& S
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&-Lef2&Z.:&<^<&FG&-?<@&Z.:&
2b<@&2T-& ^_&-LG<&F;&}2b<@&-Lef2•&.3n2&-I:& v:&R:Yd&@:[&-LS&t<@&HQ\-&-Lef2&-L3<@&
FG&-?<@&FS&@:¶d&R1<&Z.?<@&F»<@&2[2.&-[2&RE<@&cG<&2\Q&Z:;<&<@3I:&cB2& B2&-1&
.3n2&<@3I:&cB2&jQ0&ef28&%@3I:&cB2& B2&-1&.3n2&jQ0&ef2&Ra&_.¶:&Rey2&x[2&RS<.&
_.X&.y_&]f:&0GQ&2kQ&<GQ&-L3<@&2[2&R:lQ&EBDB*&]N&EBDBZK&-L3<@&Ra&2a&ZY&R1<&./3&
-q<&t<@&HQ\-&-L3<@&2T-& ^_&t<@&]f:&-m<@&@:/:&R3I<&cNd&]:;2&2`/&2\Q&Z:;<w&
TCXDVN 356 : 2005

12

bp
σ
&t<@&HQ\-&<^<&-L3<@&FG&-?<@&-L3<@&jQ[&-LM<.&<^<&-Lef2J&x[2&RS<.& O3&0GQ&2kQ&2`/&
2[2&R:lQ&EBDBZ&]N&EBDBc&2a&ZY&R1<&./3&-q<&t<@&HQ\-&-L3<@&2T-& ^_&t<@&]f:&-m<@&
@:/:&R3I<&cNd&]:;2&2`/&2\Q&Z:;<w&
sp
γ
&.;&HT&RE&2.{<.&x[2&Z.:&2b<@&2T-& ^_J&x[2&RS<.& O3&0GQ&2kQ&ë&R:lQ&EBDBFB&
E S4d$@H'$-4!'0$
EB* ^4J'0$'0!e.'$#f-$-M$%&'$
EB*B* ![2&Z1-&2\Q&FG&-?<@&]N&FG&-?<@&2T-& ^_&2k<&Rey2&-{<.&-3[<&]N&2\Q&-I3J&cB/&2.><&]Ë-&c:;Q&]N&
Z{2.& ef2&H/3&2.3&-L3<@&2[2&Z1-&2\Q&Ra&Z.?<@&xQ\-&.:;<&2[2&-LI<@& [:&@:f:&.I<&]f:&RE&-:<&2Ë0&
O3&0GQ&2kQ8&
EB*BC $:;2&cB/&2.><&2[2&@:¶:&_.[_&Z1-&2\Q&2k<&xQ\-&_.[-&-m&-{<.&.y_&cý&]l&dn-&Z:<.&-1&i&Zü& QË-&Z.:&
[_&9K<@&2.ó<@&-L3<@&<.u<@&R:lQ&Z:;<& :&2?<@&2K& YJ&2a&-{<.&R1<&]:;2&@:¶d&-T:&R/&]Ë-&c:;QJ&
<b<@&cey<@J&<.A<&2?<@&]N&@:[& N<.&xA0&9B<@&F»<@&2[2.*&

− S~&9K<@&2[2&]Ë-&c:;Q&]N&Z1-&2\Q&2a&.:;Q&jQ¶w&
− G:¶d&-L><@&cey<@&Z1-&2\Qw&
− S~&9K<@&-T:&R/&Rn2&-Le<@&2g&cý&2`/&]Ë-&c:;Qw&
− S~&9K<@&]Ë-&c:;Q&-I:&2.r8&
EB*BD =.:& :1-&Z1&<.N&]N&2?<@&-LM<.J&2k<&-I3&Hg&Rå&Z1-&2\QJ&2.><&Z{2.& ef2&-:1-&9:;<&]N&FT&-L{&2T-&
^_&R¶d&F¶3&Rey2&RE&Fl<J&RE&q<&RS<.&]N&HB&F\-&F:1<&.M<.&Z.?<@&@:/<&x^-&-L3<@&-q<@& Y&
2s<@&<.e&L:G<@&-m<@&FE&_.Ë<&2`/&Z1-&2\Q&-L3<@&2[2&@:/:&R3I<&xA0&9B<@&]N&H~&9K<@8&
EB*BE !\Q&Z:;<&c¾_&@.^_&2k<&_.X&.y_&]f:&R:lQ&Z:;<&H¶<&xQ\-&F»<@&2g&@:f:&-L3<@&2[2&<.N&d[0&
2.Q0G<&9K<@8&
=.:&cB/&2.><&2\Q&Z:;<&2.3&Z1-&2\Q&c¾_&@.^_J&2k<&eQ&-:G<&H~&9K<@&Z1-&2\Q&t<@&cB2&-Lef2&cNd&-m&
FG&-?<@&]N&2T-& ^_&2ev<@&RE&2/3J&2s<@&<.e&2[2&Z1-&2\Q&cNd&-m&FG&-?<@&<.o&]N&FG&-?<@&-q&
3<@&Z.:&Z.?<@&2a&0GQ&2kQ&.I<&2.1& O3&2[2&-:GQ&2.QW<&-eg<@&t<@&c:G<&jQ/<8&
!k<&cB/&2.><J&-q&.y_&2[2&2\Q&Z:;<&FG&-?<@&2T-& ^_&c¾_&@.^_&R1<&dt2&.y_&cý&dN&R:lQ&Z:;<&
H¶<&xQ\-&c¾_&9B<@&]N&]Ë<&2.Q0Y<&2.3&_.^_8&
EB*BF VT:&]f:&Z1-&2\Q&Rq&-I:&2.rJ&2k<&2.ó&ý& T<@&<.\-&.a/&2[2&Z{2.& ef2&RY&2a& Y&H~&9K<@&][<&
Z.Q?<&cQA<&2.Q0Y<&<.:lQ&ck<J&2s<@&<.e&H~&9K<@&2[2&Z.Q<@&2T-& ^_&Z.?<@&@:/<&R·&Rey2&H¶<&
xQ\-& O3&d?&RQ<8&
EB*BZ VT:&]f:&2[2&Z1-&2\Q&c¾_&@.^_J&2k<&Rn2&F:;-&2.ó&ý&R1<&RE&Fl<&]N&-Qq:& >&2`/&2[2&dT:&<T:8&&
!k<&[_&9K<@&2[2&@:¶:&_.[_&2?<@&<@.;&]N&2\Q&-I3&H/3&2.3&Z1-&2\Q&dT:&<T:&-LQ0l<&cB2&dE-&
2[2.&2.¾2&2.¾<J&R¶d&F¶3&RE&Fl<&2`/&2.{<.&2\Q&Z:;<&-L3<@&]X<@&<T:&2s<@&<.e&R¶d&F¶3&HB&
9{<.&Z1-&2`/&FG&-?<@&df:&Rq&]f:&FG&-?<@&2s&2`/&Z1-&2\Q8&
EB*Bc !\Q&Z:;<&FG&-?<@&Rey2&H~&9K<@*&
TCXDVN 356 : 2005

13

/• _.k<&cf<&-L3<@&2[2&Z1-&2\Q&2.SQ&<^<&2a&RE&c;2.&-Ad&2`/&cB2&9>2&Z.?<@&]ey-&jQ[&@:f:&.I<&
<GQ&-L3<@&R:lQ&ZB*BCBCB&
F• -L3<@&dE-&HT&Z1-&2\Q&2.SQ&<^<&2a&RE&c;2.&-Ad&cf<&2s<@&<.e&-L3<@&2[2&Z1-&2\Q&2.SQ&QT<&Z.:&
dN&HB&_.[&.3I:&2.ó<@&Z.?<@&@A0&<@Q0&.:Yd&-LB2&-:1_&2.3&<@ev:&]N&HB&-3N<&]o<&2`/& :1-&

FS&}2[2&2.:&-:1-&<»d&-LG<&<l<&c:G<&-K2J&]8]888•8&
Chó thÝch:&Z1-&2\Q&Rey2&23:&cN&Z1-&2\Q&FG&-?<@&<1Q&RE&Fl<&2`/&2.ó<@&-L3<@&jQ[&-LM<.&H~&9K<@&2.|&93&L:G<@&FG&
-?<@&R¶d&F¶38&
EBC ^4J'0$e.!$-)!$-M$%&'$1g$#['4$#O?'$$
EBCB* =1-&2\Q&FG&-?<@&2T-& ^_&2k<&_.¶:& 3¶&d·<&<.u<@&0GQ&2kQ&]l&-{<.&-3[<& O3&RE&Fl<&}2[2&
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− Z.?<@&FS&_.[&.3I:&@:ß<J&9Î3J&.3n2& O3&9I<@&_.[&.3I:&Z.[2&}-L3<@&-Lev<@&.y_&2k<& :1-J&
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.3I:•w&
− Z.?<@&FS&d\-&q<&RS<.&]l&.M<.&9I<@&}-{<.&-3[<&q<&RS<.&2[2&Z1-&2\Q& N<.&dp<@•&.3n2&]l&
]S&-L{&}-{<.&-3[<&2.T<@&cË-&]N&-Ley-&2.3&-ev<@&2.¾<&R\-J&-{<.&-3[<&2.T<@&RW0&<q:&2.3&2[2&
FY&2.t/&2.Md&.3n2&<@kd&9ef:&R\-J&-LId&FgdJ&]8]888•w&
− Z.?<@&FS&_.[&.3I:&]M&dp:&}-{<.&-3[<&2.SQ&dp:&RT:&]f:&2[2&2\Q&Z:;<&.3n2&Z1-&2\Q&2.SQ&-[2&
9K<@&2`/&-¶:&-L><@&cn_& QE2&c3I:&9:&RE<@&.3n2&xQ<@*&]{&9K&<.e&9kd&2kQ&-LK2J&da<@&
Z.Q<@J&HN<&2a&Rn-&dE-&HT&d[0&da2&Z.?<@&2A<&F»<@•w&
− Z.?<@&FS&_.[&.3I:&93&-[2&9K<@&Rå<@& v:&2`/&2[2&01Q&-T&]l&cB2&]N&<.u<@&¶<.&.eë<@&F\-&
cy:&2`/&d?:&-Lev<@&}-[2&RE<@&RS<.&Zú&.3n2& ev<@&xQ0G<&2`/&d?:&-Lev<@&xAd& B2&.3n2&
.p/&.3I<•8&
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− Z.?<@&2.3&.M<.& N<.&2s<@&<.e&dë&LE<@&]1-&<t-&jQ[&dt2&.3n2&]1-&<t-&9N:&.I<&<1Q&R:lQ&
Z:;<&H~&9K<@&Z.?<@&2.3&_.^_&.M<.& N<.&.3n2&dë&LE<@&]1-&<t-&9N:&.I<8&
− Z.?<@&2a&<.u<@&F:1<&9I<@&]ey-&jQ[&@:f:&.I<&2.3&_.^_&}RE&]â<@J&@a2&x3/0J&@a2&-Ley-J&
9/3&RE<@•8&
EBCBC {<.&-3[<&Z1-&2\Q&]l&-q<@& Y&2s<@&<.e&-{<.&-3[<&-m<@&2\Q&Z:;<&2`/&<a&2k<&-:1<&.N<.&RT:&]f:&
d>:&@:/:&R3I<*&2.1&-I3J&]Ë<&2.Q0Y<J& :&2?<@J&H~&9K<@&]N&H~/&2.u/8&Sg&Rå&-{<.&-3[<&t<@&]f:&
dr:&@:/:&R3I<&_.¶:&_.X&.y_&]f:&@:¶:&_.[_&2\Q&-I3&R·&2.><8&
!.3&_.^_&Z.?<@&2k<&-{<.&-3[<&Z:Yd&-L/&HB&dë&LE<@&]1-&<t-&]N&F:1<&9I<@&<1Q&jQ/& B2&

<@.:;d&.3n2& B2&-1&H~&9K<@&2[2&Z1-&2\Q&-eg<@&-B&R·&Z.¼<@&RS<.&Rey2*&Fl&LE<@&]1-&<t-&ë&d>:&
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TCXDVN 356 : 2005

14

EBCBD =.:&-{<.&-3[<&Z1-&2\QJ&-LS&HT&-¶:&-L><@&]N&-[2&RE<@J&.;&HT&RE&-:<&2Ë0&]l&-¶:&-L><@J&.;&HT&-q&.y_J&
.;&HT&@:¶d&-¶:&2s<@&<.e&2[2.&_.A<&c3I:&-¶:&-L><@& ev<@&xQ0G<&]N&-Id& v:&2k<&c\0& O3&2[2&
-:GQ&2.QW<&.:;<&.N<.&]l&-¶:&-L><@&]N&-[2&RE<@8&
¶:&-L><@&Rey2&ZY&R1<&-L3<@&-{<.&-3[<& O3&2[2&-LI<@& [:&@:f:&.I<& t&./:&2k<&_.¶:&c\0& O3&
2[2&2.|&9É<&R:lQ&EBCBc&]N&EBCB**8&
Chó thÝch:
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2[2&-:GQ&2.QW<&.:;<&.N<.8&
EBCBE =.:&-{<.&-3[<&2\Q&Z:;<&2`/&Z1-&2\Q&c¾_&@.^_&2a&ZY&R1<&<E:&cB2&Fq&HQ<@&H:<.&L/&-L3<@&jQ[&-LM<.&
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cB2J&c\0&F»<@&6J)&Z.:&]Ë<&2.Q0Y<&]N&c\0&F»<@&6J5&Z.:&2WQ&c¾_8&VT:&]f:&2[2&.;&HT&RE<@&cB2&-LG<&
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-L><@&cey<@&2`/&_.k<&FG&-?<@&df:&Rq&]N&2`/&d>:&-¶:&-L><@&Z.[2&-[2&9K<@&-L3<@&jQ[&-LM<.&Rq&
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9K<@&-L3<@&jQ[&-LM<.&xA0&9B<@&]N&-¶:&-L><@&Z.:&H~&9K<@8&

EBCBZ %E:&cB2&-L3<@&Z1-&2\Q&FG&-?<@&2T-& ^_&H:GQ&-Ü<.&93&-[2&9K<@&2`/&-¶:&-L><@&]N&2[2&2.Q0Y<&]S&
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x^-&R1<&F:1<&9I<@&9Î3&2`/&FG&-?<@J&2T-& ^_&]N&x^-&R1<&HB&2a&dn-&2`/&]1-&<t-8&
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2\Q&H:GQ&-Ü<.&2a&ZY&R1<&F:1<&9I<@&9Î3J&2.3&_.^_&x[2&RS<.&<E:&cB2& O3&@:¶& Q01-&]Ë-&c:;Q&cNd&
]:;2&RN<&.å:&-Q01<&-{<.8&
EBCBc =.¶&<b<@&2.T<@&<t-&2`/&2[2&Z1-&2\Q&./0&FE&_.Ë<&Z1-&2\Q&Rey2&_.A<& N<.&F/&2\_&_.K& QE2&
]N3&R:lQ&Z:;<&cNd&]:;2&2`/&2.ó<@&]N&c3I:&2T-& ^_&Rey2&9X<@8&
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1crc
a &<.e<@&F¶3&
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TCXDVN 356 : 2005

15

!\_&'*&!.3&_.^_&2a&HB&dë&LE<@&<@¾<&.I<&2`/&]1-&<t-&<.e<@&]f:&Fl&LE<@&.I<&2.1&
1crc
a
&]N&2a&
HB&dë&LE<@&9N:&.I<&2`/&]1-&<t-&<.e<@&]f:&Fl&LE<@&.I<&2.1&
2crc
a 8&
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-L><@& ev<@&xQ0G<&]N&-¶:&-L><@&-Id& v:&9N:&.I<8&

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\d&2.3&Z1-&2\Q•&]N&D¶<@&+&}F¶3&];&/<&-3N<&2.3&2T-& ^_•8&
h&'0$*$7$S"6$-43'0$'a#$12$09?$#UN$%g$U`'0$1,#$'a#$09b9$4='K$$
Li$L&>$%&O$4='$-4,$#4">$-4O$;,#$-"!$$
Q9g!$;9G'$(2>$19G-$-]\$;,#$-"!$
S"6$-43'0$'a#$12$09?$#UN$%g$U`'0$1,#$'a#$09b9$4='K$>>
$
Li$L&>$%&O$4='$-4,$;,#$-"!$%N$#4">$
Z.:&-3N<&FE&
-:1-&9:;<&2.SQ&
Z^3&
!\_&6*&
68&=1-&2\Q&2.SQ&
[_&cB2&2`/&2.\-&
cp<@&.3n2&.g:&
Z.:&dE-&_.k<&
-:1-&9:;<&2.SQ&
<^<&
!\_&'&
1crc
a &=&,J'&&
2crc
a &=&,J+
&
+8&=1-&2\Q&2.SQ&[_&cB2&2`/&]Ë-&
c:;Q&Lv:&
!\_&'
1crc
a &=&,J'&&

2crc
a &=&,J+
*&!k<&eQ&-:G<&9X<@&Z1-&2\Q&t<@&cB2&-Lef28&!.|&Z.:&2
a&2g&Hë&2.¾2&2.¾<&df:&2.3&_.^_&9X<@&Z1-&2\Q&Z.?<@&t<@&cB2&
-Lef2&]f:&2\_&2.T<@&<t-&0GQ&2kQ&cN&2\_&'8&
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dë&LE<@&.3n2&Z.^_&Z{<&]1-&<t-&c\0& O3&D¶<@&'8&
%1Q&-L3<@&2[2&Z1-&2\Q&./0&2[2&FE&_.Ë<&2`/&2.ó<@&2a&0GQ&2kQ&2.T<@&<t-&cN&2\_&+&]N&'&dN&
9ef:&-[2&9K<@&2`/&-¶:&-L><@&-eg<@&t<@& O3&D¶<@&'&]1-&<t-&Z.?<@&.M<.& N<.J& M&Z.?<@&2k<&
-{<.&-3[<& O3&R:lQ&Z:;<&dë&LE<@&]1-&<t-&<@¾<&.I<&]N&Z.^_&Z{<&]1-&<t-&}RT:&]f:&2\_&+•J&.3n2&
O3&R:lQ&Z:;<&dë&LE<@&]1-&<t-&<@¾<&.I<&]N&9N:&.I<&}RT:&]f:&2\_&'•8&
![2&0GQ&2kQ&2\_&2.T<@&<t-&2.3&Z1-&2\Q&FG&-?<@&2T-& ^_&<GQ&-LG<&[_&9K<@&2.3&]1-&<t-& ¼<@&
@a2&]N&]1-&<t-&x:G<&H3&]f:&-LK2&9>2&2\Q&Z:;<8&
VY&-L[<.&dë&LE<@&]1-&<t-&9>2&2k<&2a&F:;<&_.[_&2\Q&-I3&}]{&9K*&Rn-&2T-& ^_&<@/<@•8&VT:&]f:&
2\Q&Z:;<&t<@&HQ\-&-Lef2J&<@3N:&<.u<@&F:;<&_.[_&-LG<&2ß<&2k<&.I<&2.1&t<@&HQ\-&<^<&-L3<@&FG&
-?<@&-L3<@&@:/:&R3I<&<^<&-Lef2&FG&-?<@&}xOd&R:lQ&EBDBc•8&
TCXDVN 356 : 2005

16

EBCBj I:&2[2&RkQ&dó-&2`/&2\Q&Z:;<&t<@&HQ\-&-Lef2&]f:&2T-& ^_&Z.?<@&2a&<O3J&Z.?<@&2.3&_.^_&xQ\-&
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xQ0G<J&-Id& v:&9N:&.I<&]N&-Id& v:&<@¾<&.I<&]f:&.;&HT&
f
γ
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h&'0$C$7$S"6$-43'0$'a#$-]\$;,#$-"!$%.$#/'0$-3#$#456$12$09?$#UN$%g$U`'0$
1,#$'a#$09b9$4='$
1crc
a $12$
2crc
a K$'4k>$%&O$1G$\'$#O2'$-4O$-3#$#456$
S"6$-43'0$'a#$12$-?-$09?$#UN$
1crc
a $12$
2crc
a K$dd$
8456$#4\'4$'4l>$
SmK$nomK$SmmK$nommK$
SmmmK$nommmK$nommmhK$
Smp$nomp$
8456$#4\'4$'4l>$$$$$$$$$$$
nopK$nopm$
8456$#4\'4$'4l>$$
n8opmm$$
Q9g!$;9G'$(2>$19G-$-]\$
;,#$-"!$
8456$Rq9$'4l>$$
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DKu$dd$
!\_&' !\_&' !\_&'&
68&ë&<g:&Rey2&2.O&
_.`&
1crc
a &=&,J5&
2crc
a &=&,J'&
1crc
a &=&,J'&
2crc
a &=&,J+&
1crc
a &=&,J+&
2crc
a &=&,J6&
!\_&'&!\_&'&!\_&+&
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-LG<&.3n2&9ef:&dB2&
<ef2&<@kd&
1crc
a &=&,J5&
2crc
a &=&,J'&
1crc
a &=&,J+&

2crc
a &=&,J6&
1crc
a &=&,J+&
!\_&' !\_&+ !\_&+&
'8&ë&-L3<@&R\-&2a&
dB2&<ef2&<@kd&
/0& /0&Rq:&
1crc
a
&=&,J'&
2crc
a &=&,J+&
1crc
a &=&,J+&
1crc
a &=&,J6&
Ghi chó:&68&=ý&.:;Q&<.ad& ^_&xOd&R:lQ&FBCB*B*&]N&FBCB*BrB$
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1crc
a &]N&
2crc
a
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2[2&@:[&-LS&-L3<@&F¶<@&<N08&
TCXDVN 356 : 2005

17

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2`/&]X<@&2.SQ&Z^3&2s<@&<.e&HB&-b<@&RE&]â<@&-L3<@&jQ[&-LM<.&H~&9K<@8&
VT:&]f:&2\Q&Z:;<&Rey2&-{<.&-3[<&2.SQ&-[2&9K<@&2`/&-¶:&-L><@&cn_J&Z.?<@&2.3&_.^_&xQ\-&.:;<&2[2&
]1-&<t-&<GQ&-LG<8&
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v:&]f:&HB&.M<.& N<.&]1-&<t-&-L3<@&]X<@&FG&-?<@&2.SQ&Z^3&}xOd&R:lQ&cB*BCBj•J& M&9:;<&-{2.&-:1-&
9:;<&2T-& ^_&9>2&2.SQ&Z^3&2k<&_.¶:&-b<@&cG<&{-&<.\-&6(%&H3&]f:&9:;<&-{2.&2T-& ^_&0GQ&2kQ&Z.:&
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h&'0$D$7$8&9$#UX'0$12$4G$R3$L`$#9'$-Ie$1g$#&9$#UX'0$
f
γ
$
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f
γ
&>&6J,*&&
i&i&i&
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f
γ
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cNd&Lâ&HB&2k<& :1-&_.¶:&
Z:Yd&-L/& O3&R:lQ&Z:;<&
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2.ó<@•&
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ev<@&xQ0G<w&
-¶:&-L><@&-Id&
v:&9N:&.I<&]N&
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.I<&]f:&&
f

γ
&=&
6J,*&
i&
¶:&-L><@&
ev<@&
xQ0G<w& ¶:&
-L><@&-Id&
v:&9N:&.I<&
]f:&&
f
γ
& =&
6J,*&
'&
¶:&-L><@& ev<@&xQ0G<w&
-¶:&-L><@&-Id& v:&9N:&.I<&
]N&-Id& v:&<@¾<&.I<&]f:&
f
γ
&=&6J,*&}-{<.&-3[<&RY&
cNd&Lâ&HB&2k<& :1-&_.¶:&
Z:Yd&-L/& O3&R:lQ&Z:;<&
%.e&-LG<&
¶:&-L><@&
ev<@&
xQ0G<w&-¶:&
-L><@&-Id&
v:&9N:&.I<&
]f:&

f
γ
&=&
i&
TCXDVN 356 : 2005

18

dë&LE<@&]1-&<t-•&6J,*&
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f
γ
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Ghi chó:&&&
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2`/&]1-&<t-&9É<&R1<&-M<.&-LI<@&<@Q0&.:Yd&}<qJ&2.[0J&]8]888•8&
EBCB** VE&]â<@&]N&2.Q0Y<&]S&2`/&2[2&2\Q&Z:;<&Z1-&2\Q&Z.?<@&Rey2&]ey-&jQ[&@:f:&.I<&2.3&_.^_&2.3&
-L3<@&z.K&cK2&!8&VE&]â<@&@:f:&.I<&2`/&2[2&2\Q&Z:;<& ?<@&9K<@&2.3&-L3<@&D¶<@&58&
EBCB*C =.:&-{<.&-3[<& O3&RE&Fl<&2[2&2\Q&Z:;<&FG&-?<@&]N&FG&-?<@&2T-& ^_&2.SQ&-[2&9K<@&2`/&cB2&<^<&
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TCXDVN 356 : 2005

19

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TCXDVN 356 : 2005

20

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TCXDVN 356 : 2005

21

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TCXDVN 356 : 2005

22

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TCXDVN 356 : 2005

23

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TCXDVN 356 : 2005

24

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TCXDVN 356 : 2005

25

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TCXDVN 356 : 2005

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TCXDVN 356 : 2005

27

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