Embed Size (px)
7/25/2019 vezba 7 dodatak
http://slidepdf.com/reader/full/vezba-7-dodatak 1/4
+
-
Z(s,u)
0.333
0.4
0.3
0.5
tanα
P1 P2 P3 P4 P5 P6 P7
P1 P2 P3 P4 P5 P6 P7
P1 P2 P3 P4 P5 P6 P7
0.333
0.4
0.3
0.5
tanα
-
+
0 α tan P
n
1m
m m =⋅∑
=
7/25/2019 vezba 7 dodatak
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Sila P4 iznad temena 1,6 (sila P6 iznad temena 1,0)
P1 P2 P3 P4 P5 P6 P7
+
-
Z(s,u)
0.333
0.4
0.3
0.5
tanα
+
-
0.333
0.4
0.3
0.5
tanα
1 2 0 k N
1 2 0 k N
1 0 0 k N
1 0 0 k N
1 0 0 k N
8 0 k N
8 0 k N
mm
α tan m
R
m m R α tan
1 0.4 120 48
2 0.13333 220 29.3333
3 -0.3 200 -60
4 -0.5 160 -80
-62.666
7/25/2019 vezba 7 dodatak
http://slidepdf.com/reader/full/vezba-7-dodatak 3/4
1 2 0 k N
1 2 0 k N
1 0 0 k N
1 0 0 k N
1 0 0 k N
8 0 k N
8 0 k N
mm
α tan m
R
m m R α tan
1 0.4 120 482 0.13333 320 42.666
3 -0.3 180 -54
4 -0.5 80 -40
-3.3333
Sila P2 iznad temena 1,2
P1 P2 P3 P4 P5 P6 P7
+
-
Z(s,u)
0.333
0.4
0.3
0.5
tanα
7/25/2019 vezba 7 dodatak
http://slidepdf.com/reader/full/vezba-7-dodatak 4/4
1 2 0 k N
1 2 0 k N
1 0 0 k N
1 0 0 k N
1 0 0 k N
8 0 k N
8 0 k N
mm
α tan m
R
m m R α tan
1 0.4 120 48
2 0.13333 320 42.6663 -0.3 180 -54
4 -0.5 80 -40
-3.3333
1 2 0 k N
1 2 0 k N
1 0 0 k N
1 0 0 k N
1 0 0 k N
8 0 k N
8 0 k N
mm
α tan m
R
m m R α tan
1 0.4 240 96
2 0.13333 200 26.666
3 -0.3 180 -544 -0.5 80 -40
28.6666
