đồ án tốt nghiệp - xây dựng chung cư an phú



 !
"#$%&'()*+ , 


CHƯƠNG 1. TỔNG QUAN VỀ KIẾN TRÚC CÔNG TRÌNH
1.1.NHU CẦU XÂY DỰNG CÔNG TRÌNH
/01-1231-145-61789:5; 7<7=>2?2@,1-A9 A1->41- ,0:5;
BC1-DA12E 6E F,1-GHIJ811-A9 A1-7GK 181- ,0LM0>2.012E
6E41N:1-2O1-PI:-IQI>/RN5<>5; 7< ,02P1:>IS11-2I2P1
T>L2U DVIWE2GV1-2<I12XY: =1-1-2ISY2@,2IS17ZI2@,7[>1GV
2\,12XYDVIWE>2]Y2U>>/I^1 F,>2HI7ZI1_1B`76E>GW89J`1- U
=1->/a1212AN ,0>61->2,9>2] U  =1->/a12>2[Y>61-: U L2EJ81
G7bWEC1- [Y!A/[> 61>2I]>
aDX9 2E1- G12c/,7HI12d57UY;1-12E 6EN F,1-GHIJ81
e1-12G>2,97fIg<5T> Q12hE,17=>2?>GP1-W;1-DVI>65D@  F,
5<>7[>1GV 7,1->/_17AY2U>>/I^1
Hình 12CI Q12L]> [E =1->/a12
1.2.ĐỊA ĐIỂM XÂY DỰNG CÔNG TRÌNH
i,!Z >ZI>/E1->85L2E7=>2?5VI>2Q0Ij1EX1: =1->/a121d5N
D?>/R>20U1-7kY:>Z07I^512[17l1->2HI>Z01_1B`2AI2\,2KY!mDA
2IS17ZI 20>f1->2^hE920Z 2L2EJ81 G
'=1->/a121d5>/_1>/ 7GH1--I,0>201- 2R12>2EX1!KI 20DIS  E1-
[YDX>>GDA-I,0>201-1-0AI =1->/a12
S>2C1- [Y7IS1: [Y1GV >/01-L2ED` 7b20A1>2IS17UY;1->C> U 
9_E 6E 20 =1->U W89J`1-
"#$%&'()*+ , 


)2E7[>W89J`1- =1->/a12gd1-Y2n1-:2IS1>/Z1-L2=1- @ =1->/a12

e:L2=1- @ =1->/a121-65g_1JGVI7[>1_1/[>>2EX1!KI 20 =1-DIS
>2I =1-DAgC>/R>f1-ga127l
1.3.ĐIỀU KIỆN TỰ NHIÊN :
T 7I^5L2R2XE>2A12Y2Cl'2RI127GK  2I,>2A122,I5o,/p/S>
1.3.1.MÙA MƯA :
q>2U1-r7]1>2U1-
2IS>7<>/E1-ga12 *
+
'
2IS>7<>2[Y12[> +
+
'
2IS>7< ,012[> st
+
'
$GK1-5G,>/E1-ga12 uv:v55w>2U1-vx
$GK1-5G, ,012[> tsy55w>2U1-*x
$GK1-5G,>2[Y12[> s55w>2U1-x
<z5>GP1-7CI>/E1-ga12 vy:*{
<z5>GP1-7CI>2[Y12[> ur{
<z5>GP1-7CI ,012[> ++{
$GK1-gC 2PI>/E1-ga12 y55|1-A97_5
1.3.2.MÙA KHÔ:
q>2U1-7]1>2U1-r
2IS>7<>/E1-ga12 u
+
'
2IS>7< ,012[> v+
+
'

}2?122A125o,L2=
I@=1-,5 '2I]5s+{}v+{
I@=1-  '2I]5+{}s+{
}2?122A125o,5G,
I@89,5 2I]5tt{
}GV1--I@89,5DA=1-,5 @DX1>C >/E1-ga12:*5|B
}I@>2fI5Z12DA05o,5G,>q>2U1-*7]1>2U1-:1-0AI/, \1 @
-I@=1-"~ >2fI12k
})2ED` >2A12Y2Cl'2RI12/[>R> 2?EQ122GN1- F,-I@gb0
1.3.3.ĐẶC ĐIỂM ĐỊA CHẤT CÔNG TRÌNH VÀ ĐỊA CHẤT THỦY VĂN
?, 2[> =1->/a12>2.0>AI!ISEL2Q0BU>12GB,E
}$VY[> U>B,1![Y"jJA9+:t5',07<>q}:s*7]1}:r*5
}$VYM>DA1-}WU57.1:>/Z1->2U0J•0 2Q9',07<>q}:r*7]1
}y:t|}y:y*589!A!VY7[>9]E€s
}$VYsM>Y2,:WU5>/~1-}18EDA1-:>/Z1->2UIJ•0 ;1-',07<>q
}y:t|}y:y*57]1}+:|}+:**589!A!VY7[>>C>€+}v
}$VYvM>:18EDA1-7C5>/~1-/Z1->2UIJ•0 ;1-',07<>q
}+:|}+:**57]1}v:r+|}*:*589!A!VY7[>>C>€}s
"#$%&'()*+ , s


}$VY*M>WU5W,12/Z1->2UI1•, ;1-',07<>q}v:r+|}*:*5
7]1}t:+*|}t:5€r}*89!A!VY7[>>C>
}$VYt'U>Y2,:18EDA1-}18EWU5}WU5DA1-}WU5>/~1-:>/Z1->2UI
J•0',07<>q}t:+*|}t:5w 2G,L]>>2c >/01-Y2Z5DI2CL20,1x
89!A!VY7[>>C>€}y'=1->/a12 @>QI>/i1-!V1 @>2^7T>
N!VY7[>1A9
` 1GV 1-65 U 25T>7[>>`12I_1*5
1.4.GIẢI PHÁP KIẾN TRÚC
1.4.1.MẶT BẰNG VÀ PHÂN KHU CHỨC NĂNG

T>gd1- =1->/a122a12 2312X>: 2IjEJAI*+:r: 2IjE/<1-y:+
2I]5JIS1>R 2W89J`1-!Av*5


'=1->/a12-l5>61-265DA*>61-1fIDVI+v 412<'C>‚+:++5
7GK  2i17T>>ZI5T>BA1>61->/S>T>BA1>61-265>ZI C>}s:++5
'2IjE ,0 =1->/a12!A*:v5>R12>q C>5T>7[>>`12I_1
61-2652,1-5U9gC>/RN-I3,: 2ƒ7XEW.WE1-hE,12'U 2S
>2C1-L„>2EX>12Gg^1GV BI1220Z>:>/Z5gP5…61-265 @gC>/R
>2_5 U g<Y2X1L„>2EX>Dj7IS112G>/Z5 ,0>2]:2Z>2]:Y2\1-
hEZ>-I@
61->/S>:>61-!•1-o1-!A5BI_E>2?12d5Y2 D12E 6E5E,
gU1: U J? 2D-IQI>/R… 20 U 2<-I,7I12 e1-12G12E 6E 2E1-
F,L2ED` 
61-L„>2EX>"C>/R U Y2GP1->IS1L„>2EX>:7IjE2\,:>2I]>g?>2=1-
>I1…
61-s†*"C>/R U  412<Y2 D12E 6E41N
2a1 2E1--IQIY2UY5T>gd1-7P1-IQ1:>Z0L2=1--I,1/<1-7^gC
>/R U  412<g_1>/01-:B•J1-!0ZIDX>!ISE12k!A5DU 21-41-IcY
>f 2; L2=1--I,1!I1220Z>/[>Y2o2KYDVIWE2GV1-DABN>2R 22IS1
>ZI: @>2^J‡JA1->2,97fI>/01->GP1-!,I
1.4.2.MẶT ĐỨNG :
•J1-:L2,I>2U >/IS>7^1M>2IS17ZIDVI •,LR12!V1:>GH1-1-0AI7GK !A5
gd1-BP11GV 
1.4.3.HỆ THỐNG GIAO THÔNG
I,0>2=1-1-,1->/01-5ƒI7P11-E9_1!A2S>2C1-2A12!,1-
S>2C1--I,0>2=1-7;1-!A>2,1-g<DA>2,1-5U9:g,0-l5+
>2,1-g<:+s>2,1-5U9>/01-7@ @+>2,1-5U9 2R12DA+>2,1-
5U9 2N2A1-DAY2 D9>] @LR 2>2GV !V12P12,1-5U9gC>/R
"#$%&'()*+ , v



N 2R12-I3,12A: 412<gC>/RWE1-hE,12!pIY281 U 2gNI2A12
!,1-1_1L20Q1-7I!ZI!A1-~112[>:/[>>IS1!KI:2KY!mDAgQ07Q5
>2=1->20U1-
1.5.GIẢI PHÁP KỸ THUẬT :
1.5.1.HỆ THỐNG ĐIỆN :
S>2C1->I]Y12X17IS1>q2S>2C1-7IS1 2E1- F,L2E7=>2?DA012A
>2=1-hE,Y2\1-5U97IS1q7897IS17GK Jˆ17IL2~Y =1->/a12
>2=1-hE,5Z1-!GVI7IS11<Ig<
-0AI/,L2Ig?B` C5[>7IS1 @>2^Jo1-1-,95U9Y2U>7IS1J`
Y2\1-7T>N>61-1-657^Y2U>
1.5.2.HỆ THỐNG ĐIỆN NƯỚC :
-El11GV 7GK ![9>q2S>2C1- [Y1GV L2ED` DAJˆ1DA0g^
2;,1GV N>61-265/lIgd1-2S>2C1-gP51GV >`7<1-1GV
7GK gP57]1>q1-Y2\1->2=1-hE,2S>2C1- 1 2R12N-61Y2\1-
Y2 D
IQIY2UYL]> [EBA1!ABA1L2=1-J65:L2=1- @5e <>: 2O7@1-
>/61NL2ED` DSBI125AL2=1-7@1->/61N U Y2\1-BI1220Z>DA
2A12!,1-12d5-IQ5>2I^E 2IjE ,0>61-1_12S>2C1-C1-Jˆ11GV
1-,1-DA7;1-7GK 1-2I_1 ;EDA-IQIhE9]>L]>2KYDVIDIS gC>/R
Y2\1-C >/01- 412<>2X>2AI2\,
,EL2IW•!m:1GV >2QI7GK 7z9DA02S>2C1->20U>1GV  2E1- F,
L2ED` 
UIgd1- @5<>JC Dq,Y2QI7^-051GV DjB.10:B,E7@>2.02S
>2C1-C1-1GV >2QI/, C1->20U>1GV  F,>2A12Y2C
1- [Y1GV DA>20U>1GV 7jEJo1-gd1-C1-12`,'
1.5.3.THÔNG GIÓ CHIẾU SÁNG :
"C15T> F, =1->/a127jE @g,1 =1->2=1--I@ 2I]EBU1- 20 U
Y2\1--0AI/, \1gC>/R5U97IjE2\,N U Y2\1-

1.5.4.PHÒNG CHÁY THOÁT HIỂM :
'=1->/a12"'gC>/R>GH1-1-41gd1--Z 2/ƒ1-Dq, U 285Dq,
U 212IS>
i 2A12!,1-gC>/R U 2<Y 2C1- 2U9gd1- U ga12L2R'‰


'U >61-!6E7jE @s 6E>2,1-7F7Q5gQ0>20U>1-GHIL2I @B` C
Dj 2U91f
1.5.5.CHỐNG SÉT :
"#$%&'()*+ , *


'2i1B•J1-2S>2C1->2EBM> 2F7<1-hEQ 6E91,BY2./.7GK
>2I]>!XYN>61-5UIDA2S>2C1-J891CI7[>gd1-7l1-7GK >2I]>L]
7^>CI>2I^E2@,1-E9 Pg?BM>7U12
1.5.6.HỆ THỐNG THOÁT RÁC :
ŠU >2QIN5ƒI>61-7GK 7fDA0 1/U 7G,WEC1--I,1/U :-I,1/U
7GK gC>/RN>61-265DA @g<Y2X17G,/U /,1-0AII,1/U 7GK
>2I]>L]LR17U0:L„ A1-7^>/U12gC 5oI-89=12I‡55=I>/GH1-
1.5.7.CÁC HỆ THỐNG KỸ THUẬT KHÁC :
S>2C1-DSBI12:1GV >2QI7GK W•!mgd1-Y2GP1-Y2UYDIBI12: @g^
!~1-:!i >/GV L2I7G,/,2S>2C1->20U>1GV >2A12Y2C
)2E12A7GK >/,1-g? \IgU07<1-:2S>2C1-7l1-2l:B81gbI:7GH1-
1<Ig<7GK !A5gd1-"':!U>-Z 2WE1-hE,12>0A11-=I12A/l1-
89W,12:DGH120,>Z0L2E1- Q12:5=I>/GH1- 20 2E1- G
"#$%&'()*+ , t


CHƯƠNG II: KẾT CẤU SÀN
2.1.KẾT CẤU SÀN – HỆ SÀN TẦNG ĐIỂN HÌNH

2I]>L]BA1!A12IS5D76E>I_1 F,hEU>/a12>2I]>L]L]> [Eg_>=1- C>>2MY
[17j7GK 7T>/,!ADIS !`, 2i1L]> [E 20BA1B,0 20Dq,2KY!m5ADˆ17Q5
gQ02ISEhEQLI12>]‹789 2i1BA1>61-7I^12a12>61-}s7^>R12DVI U gGV
>R12>0U112GB,E
- '2i1BPg<>I]>JIS1 U  [ELIS1
- U 7?12>QI>/i1->U J1-
- T>gd1-BA1DABP7l>R12
- U 7?121<I!`  U =BA1
- R12>0U1 C>>2MY 20BA1
- )I^5>/,7<Dp1- F,BA1
2.1.1.CHỌN SƠ BỘ CÁC TIẾT DIỆN
'2i1BPg<>I]>JIS1BA1
- E,11IS5>R12.5BA1!A>E9S>7CI ;1->/01-5T>Y2n1-1-,1-A1L2=1-
g?/E1-7<1-:L2=1-g?J? 2 2E9^1L2I 2?E>QI>/i1-1-,1-'2E9^1D?>ZI5iI
7I^5>/_1BA1!A12G12,EL2I 2?E>U 7<1- F,>QI>/i1-1-,1-
- CIDVIBA1 @J65
'2i1 2IjEJA9 F,BA1Y2>2E< DA012?YDA>QI>/i1->U J1-'@>2^
2i1 2IjEJA9gQ1BA1WU 7?12BPg<>2.0 =1->2; 
VI!A 2IjEJAI Z121-~1 F,=gQ17I^12a12
X9![9 2IjEJA9>0A1g< U >61-BA1
'2i1BPg<>I]>JIS1J65
'2i1LR 2>2GV J65 F, U >61-7jE12,EDADVI12?Y!V112[>
CIDVI12?YJ65$€+5'2IjE ,02
J

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Œ'2i12
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7GK  2i1BPg<>2.0 2IjE ,0J65
"#$%&'()*+ , u

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€v++w55x
- CIDVI12?YJ65$€r5'2IjE ,02
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€t*+55
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€w+:s +:*x t*+€wr* s*xw55xŒX9 2i1g
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€*+w55x
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€t*+55
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ŒX9 2i1
"#$%&'()*+ , y


2G1-7^ 207P1-IQ1Dj>2I =1-DADˆ17Q5gQ07GK L]> [E>, 2i1

65 2R12 @LR 2>2GV 
65Y2 @LR 2>2GV 
652A12!,1- @LR 2>2GV 
s 2i1>I]>JIS1DU 2
U 2 @ 2IjE ,0 2Z9BEC>>q5@1-!_15UI @7< ;1-L2=1-7fI>2.0 2IjE
,0 F,1@
<J69 F,DU 2
>/01-7@2
>
!A 2IjE ,0>61-2
>
€st5
'2i1>2p,5b17IjELIS1>/_1DA9_E 6ELI]1>/c  2i1DU 2 @>€s++55DA
+55!ADU 2 6E>2,1-5U9
2.2.MẶT BẰNG SÀN VÀ SƠ ĐỒ TÍNH
2.2.1.Mặt bằng:
- `,DA0B`gC>/R2SJ6512G>/_1:5T>gd1-BA17GK  2I,>2A12 U =DVI
LR 2>2GV >2.0gQ1DŽ
- )]>hEQY281!0ZI=BA17GK >/a12gA9>/01-gQ1-
Bảng 2.1. 281!0ZI U =BA1
)R
2ISE
=BA1
'=1-141-
B•J1-
)R 2>2GV
•!S
!

|!


P7l>R12BA1
'Z12JAI
!

w5x
'Z121-~1
!

w5x
S1
2ANLI^E 41
2<
* v:* : "Q1L_v Z12
S2
2ANLI^E 41
2<
v:* v:* :+t "Q1!0ZIJ65
S3 2ANLI^E 41 u s :s "Q1!0ZIJ65
"#$%&'()*+ , r


2<
S4 A12A12!,1- s :v :* "Q1L_v Z12
S5 A12A12!,1- * :v :+y "Q1!0ZIJ65
S6 A12A12!,1- v:* :v :uu "Q1L_v Z12
S7 A12A12!,1- u v: :u "Q1L_v Z12
2.2.2.Sơ đồ tính:
- qB`Y281!0ZI=BA112G>/_1: @>2^>R12>0U11<I!`  20BA1>61-7I^12a12
DVIJZ1-BP7l>R1212GB,E

‚Sơ đồ 1:'U =BA1>2E< !0ZIgQ1J65
•657P1-IQ1!I_1L]>gI_1!A!I_1L]>1-A5
•'U BA112AJ81J1-DA =1-1-2ISY>2GH1->R12>2.0BP7lJ•07^>X1
J1-2]>L2Q141- 2?E!`  F,DX>!ISEDaR> 2?E>QI>/i1-7<1-DAW85>2`
5Z12 F,5=I>/GH1-
•R12>0U15=5.1 @>R127]1B`WE[>2IS1L2VYJ•0>ZI-I3,12?YDA-CI
"I^E>2; WU 7?12-IU>/?5=5.1B,EL2I7IjE 2O12 20>/_12a12v
Hình 2.3. "I^E7l5=5.1 F,J657P1-IQ1 @WE[>2IS1L2VYJ•0
‚Sơ đồ 2:'U =BA1>2E< !0ZIgQ1L_v Z12
• 'U =gQ11d5/I_1-!•: @>O!S Z12!

|!

‘:>R12>0U1>2.0BP7lgQ1
L_v Z12:-IU>/?1<I!` 7GK >R12>2.0Y2GP1-Y2UY>/,gQ1-[> Q U
=gQ1>/_15T>gd1-2a12!A5DIS >2.0BP7ls7jE!I_1L]>1-A5v
Z12DA0J65w=gQ1BCr: @2
J
|2
g
’sx
"#$%&'()*+ , +


Hình 2.2. P7lgQ1L_gC1 Z12
"#$%&'()*+ , 







 !"#$%"
- QI>/i1->2n1-7;1--l5>QI>/i1->2GH1-WE9_1w>“12>QIxDA>QI>/i1->Z5
>2HIw20Z>>QIx
- QI>/i1->2GH1-WE9_1g,0-l5>/i1-!GK1-gQ1>281 U g<Y2X112ADA
=1->/a12QI>/i1->Z5>2HI!A>QI>/i1- @>2^ @20T L2=1- @5<>-I,I
70Z11A07@>/01-hEU>/a12W89J`1-
- “12>QIDA20Z>>QI7GK >R12>0U1J`,>/_1'usu}rr*>QI>/i1-DA
>U 7<1-†>I_E 2Ez1>2I]>L]
- O>/i1-7<1-7[>7GK >R12>0U1>2.0'su*†++t
2.3.1.Tĩnh tải:
Bảng 2.2. C!ISE>R12>0U1 U !VY [E>Z0BA1BI1220Z>


X>!ISE
/i1-
!GK1-
>I_E
2Ez1
wL|5sx
S
BC
DG
K>
>QI
 "_>=1- C>>2MY * :
s Z 2W89 y :
* 3,WI541- y :s
t /61>2Z 2 ,0 +:+

L|5”
:s
u S>2C1->2I]>L]7IS11GV :
L„>2EX>
+:+s
L|5”
:s
/01-7@2SBCDGK>>QI![9>2.0gQ1-'usu†rr*>QI>/i1-DA>U 7<1-†
>I_E 2Ez1>2I]>L]
+Trọng lượng bản thân các lớp cấu tạo sàn :
- 'U !VY [E>Z0BA112GB,E
‚“12>QI U !VY [E>Z0BA1D41Y2\1-:L2EN:g,1 =1-:2A12!,1-
Bảng 2.3 Tĩnh tải sàn dày 130mm
"#$%&'()*+ , 
Hình 2.3'U !VY [E>Z0BA1


'[E>Z0
A
9
w5
x
/i1-
!GK1-
>I_E
2Ez1
wL|5
sx
QI
>/i1-

>I_E
2Ez1
wL|5
x
SBC
DGK>
>QI
QI
>R12
>0U1
wL|5
x
$VY
./,5I
+:+
 +
+:
: +:
$VYD3,
!@>
+:+
s y
+:*v
:s +:u+
"Q1"'
+:
s *
s:*
: s:*u*
$VYD3,

>/U>
+:+
 y
+:y
:s +:sv
f1-
g
tc

=4,17 g
tt
= 4,731
Bảng 2.4 Tổng kết tĩnh tải tác dụng lên các ô sàn vệ sinh
'[E>Z0
A9
w5x
/i1-
!GK1-
>I_E
2Ez1
wL|5
sx
QI>/i1-
>I_E
2Ez1
wL|5x
S
BC
DGK>
>QI

QI>R12
>0U1
wL|5
x
$VY-Z 212U51GV +:+ :* +:v* : +:*+
$VYD3,!@> +:+s y +:*v :s +:u+
$VY 2C1->2[5 +:+s + +:t : +:u
"Q1"' +:s * s:* : s:*u*
$VYD3,>/U>
+:+
* y
+:u
:s +:s*
/61>/.0  +:+ :s +:s
S>2C1-7IS11GV :L„
>2EX> 
+:+s
:s +:sr
f1- g
tc
= 5,15 g
tt
= 6,368
‚^7P1-IQ1>/01->R12>0U1>,![9>“12>QI!A-IU>/?>/E1-ga12>/01-=
BA1L2E12ANDABA1DSBI12
-
B
>>
€wv:us‚t:styx|€*:suL|5


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
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})I^5>/,!ZIL2Q141- 2?E!`  F,BA1B,EL2IgC>/R C>>2MY

‚R12œ
>>

@ABCD
ŒFL2Q141- 2?E!` 
‚R12 C>>2MY 20>I]>JIS1gI_1: 2?E5=5.185


R12>2MY 205=5.1

€:*vL5
"#$%&'()*+ , y


R12>0U1 20JQIgQ1 @g€++ 5)2I7@
IQ>2I]>
IS1>R 2 C>>2MY
12)/0
q
B
€u:vu 5

Y2GP1-U1 2i1 C>>2MY!A›+,++ @ @
5
2
)I^5>/,!ZI2A5!GK1- C>>2MY
130
'2i1 2IjEJA9!VYgQ0DS
w!V12P1-IU>/?Jo1-7^>R12>0U1x
})I^5>/,!ZIL2Q141- 2?E!`  F,BA1B,EL2IgC>/R C>>2MY

"#$%&'()*+ , r


‚R12œ
>>

@ABCD
ŒFL2Q141- 2?E!` 
EA(/FG)
‚R12 C>>2MY 20>I]>JIS1-I3,: 2?E5=5.1JGP1-
R12>2MY 205=5.1
R12>0U1 20JQIgQ1 @g€++ 5)2I7@
IQ>2I]>
IS1>R 2 C>>2MY
12)/0
q
B
€ 5

Y2GP1-U1 2i1 C>>2MY!A›y,v+ @ @
"#$%&'()*+ , +


)I^5>/,!ZI2A5!GK1- C>>2MY
15
130
'2i1 2IjEJA9!VYgQ0DS
w!V12P1-IU>/?Jo1-7^>R12>0U1x
})I^5>/,!ZIL2Q141- 2?E!`  F,BA1B,EL2IgC>/R C>>2MY
‚R12œ

>>

@ABCD
ŒFL2Q141- 2?E!` 
‚R12 C>>2MY 20>I]>JIS1gI_1: 2?E5=5.185


"#$%&'()*+ , 


R12>2MY 205=5.1
R12>0U1 20JQIgQ1 @
)2I7@
IQ>2I]>
IS1>R 2 C>>2MY
12)/0
q
B
€: 5

Y2GP1-U1 2i1 C>>2MY!A›+,++ @ @
)I^5>/,!ZI2A5!GK1- C>>2MY
"#$%&'()*+ , 


130
'2i1 2IjEJA9!VYgQ0DS
w!V12P1-IU>/?Jo1-7^>R12
>0U1x
})I^5>/,!ZIL2Q141- 2?E!`  F,BA1B,EL2IgC>/R C>>2MY

‚R12œ
>>
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@ABCD
ŒFL2Q141- 2?E!` 
2.5.TÍNH VÀ BỐ TRÍ THÉP CHO CÁC Ô SÀN
X>!ISE
‚"_>=1-"* @Š
g
€v:*wY,x€:v*wL| 5

x
‚'C>>2MY' @Š
B
€y+wY,x€ywL| 5

x7CIDVI>2MY @7GH1-LR12
!V12P1y55
IQ>2I]>,€+:+*w5x:2
+
€+:s†+:+*€+:*w5x:g€w5x
"#$%&'()*+ , s


'C>>2MY>2.0Y2GP1- \1!ZI7GK 7T>>2.0 [E>Z0wgQ1J65x
)]>hEQ>R12>0U1 C>>2MY U =gQ1
Bảng 2.10.)]>hEQ>R12 C>>2MY U =gQ1!0ZIJ65
)R2ISE=
gQ1
05.1>

w) 5x
— •
B
w 5x
'2i1
>2MY
B 2i1
w 5x
œw{x
s tt* +:+* +:ru s:u ›+,++ s:r* +:sv
* s++ +:+* +:rr +:r ›y,++ :* +:
'U =gQ1!0ZIJ65 @gjJA9!A2
g
€s+55
"#$%&'()*+ , v


Bảng 2.11.)]>hEQ>R12 C>>2MY U =gQ1L_v Z12
)R2ISE
=gQ1
05.1>
w) 5x
— •

B
w 5x
'2i1>2MY

B
 2i1

w 5x
œw{x
}
+sr
+:+*v +:ru s:s
›+,++ s:r* +:sv
}
sr:u
+:+u +:rr 
›y,++ :* +:
}
*v
+:u +:rsu u:vu
›,v+ y:+y +:u+
}
try
+:+st +:ry :
›+,++ s:r* +:sv
}
vys:v
+:yv +:ryu :*
›y,++ :* +:
}
vt+
+:+ut +:rr :v*
›y,++ :* +:
}
u:
+:+vr +:ruy s:*y
›+,++ s:r* +:sv

}
+u
+:+v+y +:rur s:v
›+,++ s:r* +:sv
v}
r
+:++t +:rru +:su
›y,++ :* +:
v} ut +:++v +:rry +:v
›y,++ :* +:
v}
u
+:+v +:rrs +:y*
›y,++ :* +:
v}
t
+:++y +:rrt +:*
›y,++ :* +:
t}
t+
+:++y +:rrt +:*+
›y,++ :* +:
t}
*
+:++s +:rry +:t
›y,++ :* +:
t}
svu
+:+y +:rr :+r
›y,++ :* +:

t}

+:++t +:rru +:s*
›y,++ :* +:
u}
yrs:
+:+*t +:+*y s:yr
›+,++ s:r* +:sv
u}
s
+:+ +:+ :ss
›y,++ :* +:
u}
y*u
+:t +:v y:sy
›,v+ y:+y +:u+
u
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