89Predavanje 8 Saobracajno Opterecenje
Embed Size (px)
DESCRIPTION
Saobraćajno opterećenje
Citation preview
-
VIII
24/11/2011
. 2011/12
. , .. 1
. 24/11/2011. 24/11/2011
VIII
K
. 2011/12 .
. 24/11/2011.
-
(CBR min > 5 %)
(CBR min > 3 %)
. 24/11/2011.
. 24/11/2011.
-
, ,
-
-
, ,
,
-
,
. 24/11/2011.
. 24/11/2011
r
o
t
-
VIII
24/11/2011
. 2011/12
. , .. 2
. 24/11/2011
. 24/11/2011
-
. 24/11/2011
-
. 24/11/2011.
?
State-of-Practice State-of-the-Art
??
-
(Schwartz, 2001)
. 24/11/2011.
:
SRPS U.C4.012 (AASHTO/72 RoadNote 29)
SRPS U.C4.014 (AASHTO/93, )
SRPS U.C4.015 (AASHTO/93,
. 24/11/2011.
AASHO Road Test (1)1958 - 1961
: Highway Research Board Special Report 61A-G
-
VIII
24/11/2011
. 2011/12
. , .. 3
. 24/11/2011.
AASHO Road Test : 1956 - 1958
: 1958 - 1960
: 1961
. 24/11/2011
: Highway Research Board Special Report 61A-G
. 24/11/2011
: Highway Research Board Special Report 61A-G . 24/11/2011.
() 24C () -3C 860 mm
700 mm
( )
. 24/11/2011.
-
85-100 pen
10% 0.075 mm
CBR = 107.7 %
/
6.5% 0.075 mm
CBR = 28 51 %
A-6 ( )
82% 0.075
mm
CBR = 2.9 %
wc = 13%
. 24/11/2011.
2.5 15 cm
0 23 cm
0 40 cm
15 cm
23 cm .
40 cm .
2.6 - 3.6 PSI
2.5 cm
8 - 25
-
VIII
24/11/2011
. 2011/12
. , .. 4
. 24/11/2011.
. 24/11/2011
: Highway Research Board Special Report 61A-G
. 24/11/2011
: Hi
ghw
ay Re
sear
ch Bo
ard
Spec
ial R
epor
t 61
A-G
. 24/11/2011.
NCAT Test Track
. 24/11/2011.
:
(
)
-
. 24/11/2011.
20 ( SRPS U.C4.012/1981)
. 5 .
()
20 kN
-
VIII
24/11/2011
. 2011/12
. , .. 5
. 24/11/2011
. 24/11/2011.
ni i
Ni
i
:
( AASHTO MEPDG Guide)
1Nn
i i
i
. 24/11/2011.
:
,
. 24/11/2011.
,
( 1 - 2 m, 1.35 m)
...
. 24/11/2011.
, Super-Single Super Super-Single
. 24/11/2011.
-
VIII
24/11/2011
. 2011/12
. , .. 6
. 24/11/2011.
. 24/11/2011. 24/11/2011
:
- -
-
- -
- -
- -
- -
. 24/11/2011. . 24/11/2011.
. 24/11/2011.
2 5 %
. 24/11/2011.
:
(
)
...
-
VIII
24/11/2011
. 2011/12
. , .. 7
. 24/11/2011.
, %
( )100
( )50 50
( )45 5 5 45
u > 4 %,
( )
45 5 - 50
. 24/11/2011.
( 19.9.2010. )
N1 , < 3.5 t
N2 , 3.5 12 t
N3 , > 12 t
O1 , < 0.75 t
O2 , 0.75 3.5 t
O3 , 3.5 10 t
O4 , > 10 t
2, 3 4:
. 24/11/2011.
-
:
16.50 m
18.75 m
21.00 m
- 40 t (44 t ).
. 24/11/2011.
:
- 18 t
- 26 t
-
32 t
9.5 t
- 28 t
:
- 10 t
- 18 t
- 24 t
. 24/11/2011.
:
5 6 - 40 t
40- ISO
() - 44 t*
- 36 t
4 ,
,
:
1.3 m 1.8 m - 36 t
1.8 m - 36 t ( 38 t
18 t
20 t
).
. 24/11/2011.
- 10 t (100 kN)
- 11,5 t (115 kN)
,
10 t (100 kN), :
e 1,0 m - 11,5 t (115 kN)
1,0 m 1,3 m - 16 t (160 kN)
1,3 m 1,8 m - 18 t ( 19 t
,
9.5 t).
-
VIII
24/11/2011
. 2011/12
. , .. 8
. 24/11/2011.
:
1.0 m - 11 t
1.0 m 1.3 m - 16 t
1.3 m 1.8 m - 18 t
10 t.
:
1.3 m - 21 t
1.3 m 1.4 m - 24 t (240 kN)
1.4 m 1.8 - 27 t
10 t
. 24/11/2011.
SRPS U.C4.010/1981.
. 24/11/2011.
SRPS U.C4.010/1981
2
2
2
2 , 3
2+3 , 3+2
3+2
. 24/11/2011.
SRPS U.C4.010/1981
/
SRPS U.C4.010 70 %
:
Super-Single
. 24/11/2011.
SRPS U.C4.010 - 3+2
kN % kN % kN % kN %
40 25 2x35 44 2x25 31 160 100
()20 9 2x45 41 2x55 50 220 100
60 16 2x80 42 2x80 42 380 100
. 24/11/2011.
o AASHO
( )
(fe)
1 = 80 kN
CO =
-
VIII
24/11/2011
. 2011/12
. , .. 9
. 24/11/2011.
80 kN
. 24/11/2011.
:
80 (81.6) kN (18000 lb)
4 20 (20.4) kN
150 kN
220 kN
. 24/11/2011.
fe Li
LST ,
n
, 3.8 6.0 (AASHTO)
SRPS U.C4.010 n = 4
n
ST
ie L
Lf
=
. 24/11/2011
4-
4!
4
2
1
2
1
=
. 24/11/2011.
:
:
41
84
1e L10212.280
Lf =
=
42
94
2e L10975.1150
Lf =
=
43
104
3e L10269.4220
Lf =
=
. 24/11/2011.
k
fei
=
=
k
1ieie fF
-
VIII
24/11/2011
. 2011/12
. , .. 10
. 24/11/2011
Fe = 0.208+0.548+0.514=1.270
133 kNfe2 = 0.548
54 kNfe1 = 0.208
127 kNfe3 = 0.514
TTV Fe (70% )
. 24/11/2011.
(USA)
. 24/11/2011.
() (U)
2.6 3.9
0.4 0.6
2.3 3.4
3.0 4.6
1.7 2.5
2.9 4.4
3.7 5.6. 24/11/2011.
1 :
l
Fej
nj
I
jl
1jejd nFT =
=
. 24/11/2011.
I
() :
Tg
r
dg T365T =
. 24/11/2011.
:
r (%)
P ()
:
( )=
+=
+=
P
1i
PP
r
1r1100
r1q
qTT gu =
-
VIII
24/11/2011
. 2011/12
. , .. 11
. 24/11/2011.
((((TuTuTuTu)))) 80 80 80 80 kNkNkNkN
> 7.000.000
2.000.000 7.000.000
700.000 2.000.000
200.000 700.000
< 200.000
. .
. 24/11/2011.
(n)(n)(n)(n)
80 (82) kNkNkNkN
(k)k)k)k)
> 500 1.2
100 - 500 0.75
< 100 0.45
nkTd = ug T,T
. 24/11/2011.
1.
2.
3.
4.
5. ( )
. 24/11/2011.
( )
PSI Present Serviceability Index
SV slope variance
C,P
(m2/1000 m2)
RD (cm)
( ) 2RD2139.0PC01.0SV1log91.103.5PSI ++=
. 24/11/2011.
/
(P
SI) p0
pt
p0 - pt
. 24/11/2011.
( )
PSI = 0 5
:
PSIo = 4.2
PSIo = 4.5
PSIt = 3.0, 2.5, 2.0
toto ppPSIPSIPSI ==
-
VIII
24/11/2011
. 2011/12
. , .. 12
. 24/11/2011.
( )
- p = 1.5 W -
pt
( )
=
Wpppp to 0
