2. TEORIA E KONSTRUKSIONEVE II 2009
VEDAT RAMADANI 2
4.50m 4.50m 4.50m
13.50m
4.50m 4.50m 4.50m
13.50m
F=120kn F=120kn
F=120kn F=120kn
X1=1kn X2=1kn
YA=120kn YB=120kn
540knm 540knm
M
3. TEORIA E KONSTRUKSIONEVE II 2009
VEDAT RAMADANI 3
X2=1kn
9.00 m 4.50 m
13.50 m
X1=1kn
4.5knm
M1
YA=1.0kn YB=1.0kn
4.5knm
3.00 m 3.00 m
6.00 m
X1=1kn
4.5knm
M2
4. TEORIA E KONSTRUKSIONEVE II 2009
VEDAT RAMADANI 4
EKUACIONI KANONIK
X1δ11+δ10=0
δ10=(- *4.52
*540)*2-4.52
*540=-14580
δ11= 4.53
)*2+4.53
+2*( 4.52
*3+ 4.52
*3)=160.875
X2= =90.62kn X2= X1
5. TEORIA E KONSTRUKSIONEVE II 2009
VEDAT RAMADANI 5
4.50m 4.50m 4.50m
13.50m
F=120kn F=120kn
X1=90.62kn X2=90.62kn
132.167knm 132.167knm
M
29.37kn
29.37kn
Q
YA=29.37kn YB=29.37kn
6. TEORIA E KONSTRUKSIONEVE II 2009
VEDAT RAMADANI 6
3.00m 3.00m
6.00m
X1=90.62kn
132.167knm
M
45.31kn
45.31kn
Q
YA=45.31kn YB=45.31kn
7. TEORIA E KONSTRUKSIONEVE II 2009
VEDAT RAMADANI 7
155.00mm
23.00mm
377.00mm
23.00mm
400.00mm
14.00mm
DIMENSIONIMI I TRAUT 1
Mmax=1.7*132.167=225.539 knm
lej
Wpot= = =0.0014096m3
=1409.6cm3
Hopt= = =37.54cm
Pervetesohet h=400mm
Karakteristikat e profilit
H=400mm
B=155mm
D=14mm
T=23mm
Ix =29210cm4
Wx=1460cm3
G=1949.4kg/m
=154478.76≤ lej=160000 kn/m2
fmax= = =0.000973m
flej= = =0.054m
8. Teoria e Konstruksioneve II Mars2009
VEDAT RAMADANI 1
1.50m 5.00m 5.00m 5.00m 1.50m
18.00m
Nr=P1+P2+P3+P4
Nr=950+1100+1300+1000=4450kn
Nt=0.15*4450+4450=5117.5kn
Mr=P1*7.5+P2*2.5-P3*2.5-P4*7.5=
Mr=950*7.5+1200*2.5-1300*2.5-1000*2.5=625knm
A=B*L=B*18
NR
P1 P2 P3 P4
Mr
9. Teoria e Konstruksioneve II Mars2009
VEDAT RAMADANI 2
At=0.30*0.40+0.60*0.8=1.04m2
t=1.04*25*18=450kn/m2
3*0.5 10*0.5 3*0.510*0.5 10*0.5
K1=0.25*1.30*160000=5200
K2=0.50*1.30*160000=10400
11. Teoria e Konstruksioneve II Mars2009
VEDAT RAMADANI 4
DIAGRAMET TE PUNUARA ME PROGRAMIN STAAD
303.08
383.24
MOMENTETEPERKULJESTETHEMELIT
Mo
DIAGRAMET
TRANZVERZALET
T(Q)
DIAGRAMET
507.69
302.47279.85
407.39
395.75
310.46
516.52
559.89
519.7
569.65
605.77
532.5
335.27
12. Teoria e Konstruksioneve II Mars2009
VEDAT RAMADANI 5
Mumax=1.7*507.69=863.073knm
Mumax=1.7*407.39=692.563knm
a=ao+øu+ =2.0+1.0+ =9.4cm
hstat=h-a=120-9.4=110.6cm
lart
Kh= = =2.90
Per MB 3O Kz=0.956 Ea/Eb=10/1.4‰
Aa= = =20.51cm2
I 2ø14 me Aa=3.08cm2
II 4ø25 me Aa=19.64cm2
Aa=22.72>20.51cm2
Aamin= min*Ab=0.25/100*60*110.6=16.59cm2
Posht
Kh= = =3.25
13. Teoria e Konstruksioneve II Mars2009
VEDAT RAMADANI 6
Per MB 3O Kz=0.962 Ea/Eb=10/1.2‰
Aa= = =16.27cm2
I 2ø14 me Aa=3.08cm2
II 3ø25 me Aa=14.73cm2
Aa=17.81>16.27cm2
Aa=17.81> Aamin==16.59cm2
Amon=4ø12/30cm
Stafat
eu=2/3 h≤30cm
eu=2/3*120=80>30cm
pervetesohen
st=ø10/20/10cm
Tu=1.7*569.65=968.405kn
τn= = =1.49MPa
Per MB 30 τr=1.1MPa< τn=1.49MPa
Behet caktimi se per cilat nderje behet fjale
τr=1.1MPa< τn=1.49MPa<3 τr=3.3MPa
14. Teoria e Konstruksioneve II Mars2009
VEDAT RAMADANI 7
Ka nevoje te behet sigurimi nga nderjet kryesore te pjerreta me forca te
reduktuara
n τau
τru
λ
500cm
λ= *5.0=1.30m=130cm
forcat tranzverzale qe pranon betoni
τru= Tu-Tbu
Tbu=1/2(3 τr- τn)*b0*z=1/2(3*1.1-1.49)*60*0.962*110.6=586.7kn
Nderjet ne rreshqitje te reduktuara jane
τru= = =0.905MPa
min Au=min u* = =0.6cm2
st=ø10=0.79cm2
>0.6cm2
dmth e ploteson kushtin
16. Teoria e konstruksioneve II 2009
VEDAT RAMADANI 1
д ч 1:д се определ т ре кции и ди гр ми н ст тичките големини Mr,Mt
и угиб w з д ден т рмир но бетонск кружн плоч со примен н
т блиците н Marcus. одул н ел стичност : E=31*106
KN/m2
, =0.2
a=4m
b=2m
q=20kn/m
P=15kn
t=0.16m
Q=1 N=
E*h3
12*(1- 3 )
=
31*106*0.163
12*(1-0.23 )
=16533.33
Mr=0
Mt=
q*a2
8
(1- )=
20*42
8
(1-0.2)=32knm
W’=-
q*a3
8*N*(1+ )
=
20*43
8*16533.33*(1+0.2)
=-0.00806m
Qr=-
q*a
2
*Q=
20*4
2
*1=-40k
P P
q
2b
2a
q
2a
20. Teoria e konstruksioneve II 2009
VEDAT RAMADANI 5
+
16.59 16.59
Mt
16.5916.59 4.54.5
Mr
0.00056
7
0.0007
0.00598
0.0007
0.00056
7
W
P P
2b
2a
W’=
P*b*a
8*N*(1+ )
*(1- β2
)=
15*2*4
8*16533.33*(1+0.2)
*(1- 0.52
)=0.000567
Q=0
W=
P*b*a2
8*N*(1+ )
*x1=
15*2*42
8*16533.33*(1+0.2)
*1.98=0.00598m
21. Teoria e konstruksioneve II 2009
VEDAT RAMADANI 6
Ly
д ч 2: се определ т ст тичките големини з д ден т пр во голн
рмир но бетонск плоч ,тов рен со р мномерен тов р п,со примен н
т блиците н rcus. се определи м ксим лен угиб н плоч т .
=31*106
kN/m2
: =0.2
Lx=5m
Ly=6m
P=12kn/m
T=0.16m
λ=
Ly
Lx
=
6
5
=1.2
N=
E*h3
12*(1- 2 )
=
31*106
*0.163
12*(1-0.22
)
= 11022.22
vx=vy= v
з д ден т плоч (вклештен во две стр ни и две стр ни слободни
потпрен ) ги чит ме следниве под тоци
v=1-
15
32
*
λ2
1+λ4
=1-
15
32
∗
1.22
1+1.24
=0.78
px=p*
λ4
1+λ4
=12*
1.24
1+1.24
=8.09kn/m
Lx
22. Teoria e konstruksioneve II 2009
VEDAT RAMADANI 7
py= p*
1
1+λ4
=12*
1
1+1.24
=3.90kn/m
max во долн т зон
Mxmax=
9
128
*px*Lx
2
*v=
9
128
*8.09*5.02
*0.78=11.09knm
Mymax=
9
128
*py*Ly
2
*v=
9
128
*3.90*6.02
*0.78=7.70knm
Muxmax=11.09*1.8=19.96knm
Muymax=7.70*1.8=13.68knm
орн т зон
Mxmin=-
px*Lx2
8
=
8.09*5.02
8
=-25.28knm
Mymin=-
px*Lx2
8
=
3,90*6,02
8
=-17.07knm
Muxmin=1.8*(-25.28)=-45.50knm
Muymin=1.8*(-17.07)=--30.72knm
ресметк н угиб
W=
1
N
*
px*Lx4
720
*(1.064+2.815*v)=
=
1
11022.22
*
8.09*5.04
720
*(1.064+2.815*0.78)=0.00207m