So sánh tiêu chuẩn tính toán tải trọng gió theo tiêu chuẩn Việt Nam TCVN2737 1995 với tiêu chuẩn Châu Âu EUROCODES EN199114 tiêu chuẩn Hoa Kỳ ASCE SEI 705 (Luận văn thạc sĩ)

.............................................................................................................. 1
................................................................................................... 1
................................................................................... 2
................................................................................. 2
................................................................................... 2
......................................................... 3
............................................................................... 3
................................... 3
.................................................................. 3
..................... 4
1.2.1.

........................................................... 4
....................................................... 5

1.2.3.

công trình.................. 6
....................... 9
............................................................................ 9
-1-4............................ 10
.............................................................................. 12
........................................... 14
-1995) ....... 14
...................................................................... 14
.................................................................................. 14

2.1.3. Thành

................................................................................ 18
-05................. 22

.............................................................. 22
........................................................................ 24
....................................................................... 25
p................................................................... 26
z

................................................................................ 26
zt).................................... 27
d ............................................................................. 27

........................................................................ 28
............................................................ 28
........................................................................ 31
.................... 32
-1-4)................. 33
......................................................... 33
...................................................... 33
.......................................................................... 34
2.3.4.

................................................................................. 41

2.3.5.

sCd ....................................................................... 43

2.3.6.

.................................................................... 51
.................... 70
..................................................................................... 70
............................................................................... 74
.................................................................... 78
....................... 78
G GIÓ VÀO CÔNG TRÌNH NHÀ CAO
................... 79
.................................................................... 79
....................................... 82

TCVN 2737:1995........................................................................................ 85
....................................... 85
..................................... 85


..................... 89

1991-1-4. ..................................................................................................... 90
.......................................................... 90
................................................................................. 96

ASCE/SEI 7-05. .......................................................................................... 98
............... 98
............ 100
ình. .............................. 101
. 102
....................................................................................... 104
........................................................ 106
...................................................................................................... 106

.................................................................................................... 107


gió .............................................................................................................................. 6
........................................... 6
........................................... 7
Hình 1.4. Mái nghiêng 30o 45o

........................ 7
........................................................ 7
................. 8
.......................................................... 8
.................................... 15

...................................................................................... 20
............................................................................. 22
............................................ 39
................................... 41

e

.................................................................................... 42
Hình 2.8. CsCd
.................. 44
Hình 2.9. CsCd
................................................................................................................................. 45
Hình 2.10. CsCd

............... 45

Hình 2.11. CsCd
................................................................................................................................. 46
Hình 2.12. CsCd

.......................... 46
................................ 48
........ 49
pe
2

2

........................................................... 52
........ 53
................................................ 54


............................................................. 55
............. 62
f,0,
r

.......... 64
.................................. 65
................................... 67
................................................... 70
............... 76
............................................................. 81
công trình ............................................................... 82
................................................ 103

...................................................... 104


.......... 15
...... 17
......................................................... 19
L .......................................... 21
pi)................................................................. 25

r
e

-05......................................................................................... 27
d ................................................................................. 28
............................................................................ 28
-05.................................................. 30
................................................. 36
................................. 39
................................. 40
......... 54
g ............................................... 56
.................................... 58
.......................................... 60
................................... 61
....................................................... 63
.............................................................. 65
............................................ 67
..................................................................................... 69
.. 70
....................................... 71

............................................................. 73
................... 74
........... 75
........... 76
....... 76

EN 1991-1-4, ASCE/SEI 7-05 ................................................................................ 77
...................... 83
.......................................................... 83
.......................................................... 83
-1995 .............................................. 85
.............. 86


.............. 86
................ 89
..................... 89
...................... 96
................... 97
theo EUROCODES. ......... 98
................... 99
.................. 101
theo ASCE. ............. 101


Sau

tiêu chu
TCVN2737:

-1-4 & tiêu
/SEI 7-05.

chính

-

-

Ngô


Tên tôi là:
14-2016
Phòng.
Tôi

"
TCVN2737:

-1-4 & tiêu
/SEI 7-05.


g

ã

ng
t

1


-1-4 & ASCE/SEI 7-05,

:1995-

TCVN
So sánh tiê
TCVN2737:

-1-4 & tiêu
/SEI 7-05.

toán và
n EN 1991-1-4:2004 & ASCE 7-

TCVN 2737-1995.

(TCVN 2727:1995) thông qu

quy trình
Hoa
ASCE/SEI 7-05

-1995.

.

TCVN 2737:1995, EN-1991-1-4, ASCE/SEI 7-05: quy trình
công trình

công trình
EUROCODE,

2


1.1.

[6,8,9].

1.1.1.

.

Gió là

a không

khí. Nguyên nhân hình thành gió là do b

nhiên là không

Gió

1.1.2.

G

:
n)

Gió

3


1.2.
1.2.1.

.
[6,7].

4


Nhóm các thô
.

1.2.2.
ng
ên nhà cao

g

và

h

sân

5


ó

i

1.2.3.

công trình [7].

-le v

.
Hình 1.1

Hình 1.2

6


Hình

o

45o

Hình 1.4. Mái nghiêng 30o 45o

Hình 1.3

Hình 1.5.

7


Hình 1.6

Hình 1.7

-

.

-

-

-

- Nên
-

-

thiên tai

-

x

-

cho

-gia, ban8


-

-

-

-

-

.
1.3.

.

1.3.1.
2737:1995,
và TCXD 229:1999.
TCVN 2737:1995-

l

QCVN 029


TCVN 2737-2009/BXD

-1995 hay do

QCVN 02-

-1995.
TCVN 2737:

,

-

1.3.2.

EN EUROCODES 1991-1-4 [10, 13].

10


- EN 1990 Eurocode : Basis of Structural Design
- EN 1991 Eurocode 1: Actions on structures
- EN 1992 Eurocode 2: Design of concrete structures
- EN 1993 Eurocode 3: Design of steel structures

- EN 1994 Eurocode 4: Design of composite steel and concrete structures
- EN 1995 Eurocode 5: Design of timber structures
- EN 1996 Eurocode 6: Design of masonry structures
- EN 1997 Eurocode 7: Geotechnical design
- EN 1998 Eurocode 8: Design of structures for earthquake resistance
- EN 1999 Eurocode 9: Design of aluminium structures

-1-4
EN 1991-1-

-

-1 (Actions on structures -

General actions). EN 1991-1-1-

-1-

11


sCd

-1-

1.3.3.

14]
-

23

.

l

g 9: Reserved for Future Provisions
-Atmospheric Icing

.
rial-Specific Seismic Design and Detailing Requirement

ismic Design Requirements for Structures with Damping
Systems

12


-Specific Ground Motion Procedures for Seismic Design
2: Seismic Ground Motion and Long-Period Transition Maps

13


CÔNG TRÌNH

2.1.

-1995) [2].

2.1.1. Phân

2.1.2.
z
2.1)
W = Wo * k * c
T

(2.1)

:
.

B
-

2]
B

2]
14


.2

B

o

2.1

trong

2

-A, 12 daN/m2

0

II-A và 15 daN/m2

-A.

2.1.
[2])
I
gió
W0 (daN/m2)
Hình 2.1.

IB
65

II
IA
55

IIB
95

III
IIA
83

IIIB
125

IIIA
110

IVB

VB

155

185

c gió W0
có

cùng
hình và
15


v

o

W0 = 0.0613*v02

(2.2)

o

bình tro

ng.
c=0
2

2
0

.

t
t

:
Wt = W0.ct.k.S
ct

(2.3)
S-

t vuông.
16