Ngày tải lên :
16/04/2014, 17:00
... nhánh mái :250x10mm.
21
RcmdaN
W
M
./72 ,14 774
16 7 ,10 4
12 3 ,18 4867
2
<===
{ }
)/ (12 60)()/(276 ,11 55
46
2 51, 22324
333 ,17 6
12 3 ,18 4867
).(46 )1. 225. (1. 2 2
).(333 ,17 6)2 .12 5. (1.
6
1
.2
6
1
.2
.,min
22
2
2
322
22
cmdaNRcmdaN
cmlA
cmlW
RR
A
Q
W
M
hgtd
h
hh
h
hh
ghhgtt
hh
td
==
+
=
===
===
+
=
.53,0
12 60.2
92 ,13 47
).(2
min
2
2
cm
R
q
h
g
s
ngang
suon
==
=
.4,0
12 60.2
94 ,10 10
).(2
min
2
2
cm
R
q
h
g
dd
ngang
dam
==
=
Kiểm ... dàn:
24
.4,0C;4626,0C
7, 51, 0artg
433,0
24
4 ,10
L
H
21
0
==
==
==
G= (1, 5+0,75).6. (19 ,008+4 61, 805) +1, 5.6 .16 ,5 +15 14,7= 815 4 ,17 6 (daN).
P=630. (1, 5+0,75) =14 17,5 daN.
F=G+P= 815 4 ,17 6 +14 17,5=95 71, 676 daN.
sin=0,0995,cos=0,995.
Chiều ... ộĐ
.936,59753
365,72
2204600
365,72
11 5,30
.995,70379.
2
1min
nh1
minmax1
1
1
x1
1
1
y1
12
11
RcmdaN
A
ngC
r
l
r
l
daN
C
M
C
y
NN
nh
x
x
y
y
nh
<==
=
==
===
===
=+=+=
%.5%9,2 %10 0.
215 0
215 0-2 212 ,20
R Có
.R.cm/daN20,2 212
4,56.806,0
18 4 ,10 0563
A.
N
:tra...