dizajn na nosecki konstrukcii
TRANSCRIPT
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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. , ,
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30- .
, , .
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1000 .
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: 12,14,16,20,22,27,30.
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0,2 .
2 .
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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n , a e .
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. DIN267
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6
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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. ., 50%
, .
.
.
, , (,
.). 50-
.
:
1:
,
, F = 2500 kN. 4.6. .0361 :
:
:2 2
160 16doz
kN kN
mm cm
:
215
dozkNcm
2
27bdoz
kNcm
noz
, reb
VK
:
221,0* 2, 4 50, 4
noz cm
235, 0*1,0 35,0
reb cm
22*50.40 35.0 135.8
VK cm
2 22500 18.4 16135.8
vk
F kN kNA cm cm
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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2500156.3
16VK
230, 0*1,9 57,0
noz cm 239,0*1,1 42,9
reb cm
22* 157
VK noz reb A cm
2 2
250015.92 16
157vk
F kN kN
A cm cm
.
F noz
F ,
reb
F , noz
reb .
57* 2500 * 907
157
AnozFnoz F kN
Avk 42.9* 2500 * 684
157
ArebFreb F kN
Avk
907Fnoz kN
,
d1=25mm, 24l 4.6
.
2(30 2*2.50)*1.9 47.5NETONOZ
cm 2 2
90719 16
47.5
kN kN
cm cm
300 19
390 11
300 19
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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~ 8 ~
:
1( 2 ) *noz noz Nnoz
b d tdoz
(30 2 * 2.5) * 56.7nozt
56.72,27
25nozt
300 23 .
300 11, 5 , b= 145mm .
:
12*( 1) * *
2
Nnozbvk d tvk
doz
56.72* (14.5 2.5)*
2tvk tvk 1.2cm=12mm
145 1.2 . :
(30 2*2.5) 2(14.5 2.5) * 56.7tpod 1.15tpod
300 11, 5 + 2 145 1.2
907
6.66min 136
Fnozn
F .
824l
:
2
90712,09 16
(30 5)*3
kN
cm
2
90715,42 16
25*1, 2 2,12*1, 2
kN
cm
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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:
684Freb kN
, d1=18mm, 16l 4.6 17mm
.
2(39 2*1.7)*1 35.6NETOREB
cm 2 2
68419.21 16
35.6
kN kN I
cm cm
II-II
2(39 4*1.7)*1 32.2NETOREB
II cm 2 2
8 68415.99 16
10 32.2
kN kN II
cm cm
. .
684(39 2*1,7)*16
treb 19.21treb 20.0treb
390 20 .
:
22(30 4*1.7) * 42NETOPOD
tpod cm 0.9tpod cm 1.0tpod cm
2 390 10 .
907
17,4951,84
n .
1824l 4.6
:
2
684
9.6 16(39 2*1.7)* 2.0
kN
I cm
2
8 684
0.8*10.62 8.5 1610 (39 4*1.7)* 2.0
kN
II cm
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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2:
. :
M = 700kNm Q = 400 kN
:
:2
16doz
kN
cm
29
doz
kN
cm
:
4215472Inoz cm 426214Ireb cm
4241686Ivk Inoz Ireb cm
296.0Anoz cm 276.8Areb cm
22 268.8Avk Anoz Areb cm
2
2 2
700*10 70,0* 10,1 16
241686 2doz
kN kN
cm cm
2 2
4005.20 9
64*1.2
kN kN sr
cm cm
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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215472700 * 624.1
241686noz
M kNm 700 624.1 75.9REB
M kNm 400REBQ kN
. d1=2.25 M20 X l 10.9 Fts=61.6kN.
, 0.67
NOZh m .
931.5Fznoz Fpnoz kN , a 931,5
7,562*61,6
n
820l 10.9
:
32 41 64.0 *1.296.0 (96.0 4.2.1*3.0) *33.5 208522 26214 234736
4 121 0.4
7.56
Ineto cm
32347366707
35.0Wneto cm
2
2 2
700*1010, 431 16
6707
kN kN
cm cm
.
:
320 2 140tpod tpod
931.5(32,0 2*14,0)*
16tpod 0.97tpod cm
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931.5 4(32, 0 2*14, 0 4* 2,1* 2) * 1 0, 4
16 7,56
1.06
tpod
tpod cm
320 12 2 140 12
m20l ... 10.9, Fts=61.6kN.
Qreb = 450kN, Mreb= 75.9 * 400 * 0.04=96.2kNm=91.9kNm
61,6Fts kN 400 , 75.9 400*0.040
91.9
Qreb kN Mreb
Mreb knM
2
21 6 * 91.9400
2 * 61.6 0.70
0.0081 160000 620493.79
7.15
mXn
mXn
mXn
m =1 , n = 8, 8 20l ... 10,9
103,61F kN 50QF kN 115 2* 123.2RF kN Fts kN
32 41 60(32.0 2.14.0) *1.2 (32.0 *14.0 2 * 4 * 2.1) *1.2 * * 33.5 2 * * 0.8 182446
4 121 0.4
7.56
neto
podI cm
22l...10.9, . Fts=76.4kN, a n=10. Toa 10 22l ...10.9
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2(32 2*2.3)*3,0 82.2NETONOZ
cm 2(32 4*2.3)*3.0 68.4NETO
NOZII cm
(32 2 * 2.3) * 32.3noz
t cm 32.3noz
t cm
300 34 .
320 16 + 2 140 16
:
684Freb kN
, d1=18mm, 16l 4.6 17mm
.
2(39 2*1.7)*1 35.6NETOREB
cm 2 2
68419.21 16
35.6
kN kN I
cm cm
II-II
2(39 4*1.7)*1 32.2NETOREB
II cm 2 2
8 68415.99 16
10 32.2
kN kN II
cm cm
. .
684(39 2*1,7)* 16treb 19.21treb 20.0treb
390 20 .
:
22(30 4*1.7) * 42NETOPOD
tpod cm 0.9tpod cm 1.0tpod cm
2 390 10 .
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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907
17,4951,84
n .
1824l 4.6
:
2
6849.6 16
(39 2*1.7)* 2.0
kNI
cm
2
8 6840.8*10.62 8.5 16
10 (39 4*1.7)* 2.0
kNII
cm
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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3:
, Qa=120kn =140kNm. 10,9
. .0361 .0370, .0361 .0561 :
IPE 300:2
53,8A cm 2(30 2*1.7)*1.53 34.6Areb cm 219.22Anoz A Areb cm
48360Ix cm 3557Wx cm 3651.69Zx cm 3314Sx cm
:
2 2
140*10025 16
557
kN kN
Wx cm cm
.
3140*100875
16
Wx cm
IPE 360:
272,7A cm 2(36 2*1.27)*0,8 26,768Areb cm 245,932Anoz A Areb cm
416270Ix cm 3904Wx cm 31057,68Zx cm 3510Sx cm
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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~ 16 ~
:
2
140*10015,48 16
904
kN
Wx cm
2
*4.9 9
*
A
r
Q Sx kN
Ix t cm
.
:
.
2 ~ 0.5 0.5*8 4 tr mm
2
2
2
2 2
2*(24 2*0.6)0.6 27.4
4.38 /
4.38 12
II
II
As cm
QaV kN cm
As
kN kN vk V
cm cm
Fznoz , .
1 0.5 0.5*12,7 6,35 t mm . 1=12mm
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7/25/2019 Dizajn Na Nosecki Konstrukcii
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~ 17 ~
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, .