c2-2 mecanica ruperii - aplicatie poduri cf
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Universitatea Politehnica TimiUniversitatea Politehnica Timi oara oaraFacultatea de Construc iiFacultatea de Construc ii
Str. Traian Lalescu nr. 2AStr. Traian Lalescu nr. 2A - - 1900 TIMI OARA1900 TIMI OARA -- ROMNIAROMNIATelefon: 0256Telefon: 0256--403919; Fax: 0256403919; Fax: 0256--404010 E404010 E--mail: epetzekmail: [email protected]@ssf.ro wwww.ct.upt.roww.ct.upt.ro
..AplicaAplica ia ia nr. 1nr. 1
Conf Conf.dr.ing. Edward PETZEK.dr.ing. Edward PETZEK
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Curs general de poduri metaliceCurs general de poduri metalice
Bridgenr.
Constr.year Span
Cross sectiontype / main elements Photo
4 1940 6,60 m
5 1942 2 x 11,8 m
8 1942 2 x 11,8 m
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Curs general de poduri metaliceCurs general de poduri metalice
9 1942 8,60 m
13 19429,80 m +26,90 m
15 1942, m
18,80 m
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Curs general de poduri metaliceCurs general de poduri metalice16 1942 26,90 m
171880/1942 8,40 m
20 1942 37,20 m
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Curs general de poduri metaliceCurs general de poduri metalice22 1942 14,00 m
24 1944 53,60 m
251940-1944
58,25 m
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Curs general de poduri metaliceCurs general de poduri metalice22 1942 14,00 m
24 1944 53,60 m
251940-1944
58,25 m
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Curs general de poduri metaliceCurs general de poduri metalice22 1942 14,00 m
24 1944 53,60 m
251940-1944
58,25 m
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Curs general de poduri metaliceCurs general de poduri metalice34 1966 14,20 m
37 1960 23,00 m
401942-1944
31,20 m
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Curs general de poduri metaliceCurs general de poduri metalice
411880/1942
16,00 m
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
After the stress analysis and the fatigue verifications based on the After the stress analysis and the fatigue verifications based on theWhler concept which were made in relation with the prescriptions of theWhler concept which were made in relation with the prescriptions of theRomanian standardRomanian standard SR 1911SR 1911--19981998,, Swiss code 161 & SBB RichtlinieSwiss code 161 & SBB Richtlinie20022002 and theand the German code DS 805German code DS 805--20022002, a, a life prediction analysislife prediction analysisbased on fracture mechanics principlesbased on fracture mechanics principles was performed in order towas performed in order toevaluate the remainin fati ue life for these structures for the new trafficevaluate the remainin fati ue life for these structures for the new traffic UIC conditions.UIC conditions.
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Example for bridge no. 28, km 125+323,25.Riveted structure.
.
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
S an: 3 x 14 10 m + 1 x 13 90 mSt 37
2UIC mm/ N13,97max
Damage accumulation value: D = 0,98 !
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Traffic mixed Eurocode 1
Traintype
No. of trains / day Train weight[t]
Traffic volume[Mil. t/an]
12
1212
663530
2,902,30
4567
57128
510216014311035
,0,935,526,273,02
8 6 1035 2,27
67 4 95
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Solicitari din Tren Tip 1
600
500
300
400
s
[ d a
N / c m
2 ]
200
s
0
1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 113 120 127 134 141 148 155 162 169 176 183 190 197 204 211
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Solicitari din Tren Tip 2
400
300
350
200
250
s
[ d a
N / c m
2 ]
50
100
150
0
1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221 232 243 254 265 276 287 298 309 320 331 342
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Solicitari din Tren Tip 3
350
250
300
150
200
s
[ d a
N / c m
2 ]
50
100
0
1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151 161 171 181 191 201 211 221 231 241 251 261 271 281 291 301
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Solicitari din Tren Tip 4
350
250
300
150
200
s
[ d a
N / c m
2 ]
50
100
0
1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 1 09 1 15 1 21 1 27 1 33 1 39 1 45 151 1 57 1 63 1 69 175 1 81 1 87
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Solicitari din Tren Tip 5
600
400
500
300
s
[ d a
N / c m
2 ]
100
200
0
1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 113 120 127 134 141 148 155 162 169 176 183 190 197 204 211 218
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Solicitari din Tren Tip 6
600
500
300
400
s
[ d a
N / c m
2 ]
100
200
0
1 10 19 28 37 46 55 64 73 82 91 100 109 118 127 136 145 154 163 172 181 190 199 208 217 226 235 244 253 262 271
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Solicitari din Tren Tip 7
600
500
300
400
s
[ d a
N / c m
2 ]
100
200
0
1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 96 101 106 111 116 121 126 131 136 141 146 151 156 161
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Solicitari din Tren Tip 8
600
500
300
400
s
[ d a
N / c m
2 ]
100
200
0
1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 96 101 106 111 116 121 126 131 136
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Stress history
T1 T2 T3 T4 T5 T6 T7 T8 Total50 0 0 0 0 105 36 0 108 249
100 0 0 0 0 7 12 0 0 19
MAIN GIRDER (L/2) mixs
[daN/cm 2]
291
500
600
300
350
150 12 12 10 0 0 0 0 0 34175 0 108 0 0 0 0 0 0 108200 132 0 0 10 105 36 8 0 291250 12 0 65 60 0 0 0 12 149
249
400
a n g e
/ c m
2 ]
200
250
c l e s n
300 12 12 10 0 0 60 0 6 100350 0 12 0 0 0 60 8 0 80400 0 0 0 0 0 36 0 0 36450 0 0 0 0 0 0 88 6 94
94 9480
100108
200
300
S t r e s s
s
[ d a
100
150 N o .
o f c
475 12 0 0 0 0 0 0 0 12500 0 0 0 0 14 72 8 0 94
381.36 Total/day 1037s e [daN/cm2] =
1934
12
3620
0
100
1 2 3 4 5 6 7 8 9 10 11 12 13
0
50
No. of classified intervals
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
e ma er a c arac er s cs a op ein the verifications
St 37 ;
y= 230 N/mm 2;= 2
C = 27 J for T= -20 C
u .
B = 10 mm (steel plates thickness)KKmatmat = 1528 N/mm= 1528 N/mm3/23/2 JJcritcrit == 20 N/mm20 N/mm
m = 3 and C = 3 x 10m = 3 and C = 3 x 10 --1212
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Crack model
Web
surainitiala
Fisura
initialacrack
crack
ng e
Flange
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Remaining fatigue lifeRemaining fatigue life - - RFLRFL
Case 1 Main Girder / lower flange middle span section (1/2 L):
a 0 = 2,00 mm=cr J Ic = 20 N/mmm = 3 i C = 3x10 -12
,,Case 2 Main Girder / web middle span section (1/2 L):
= ,a crit = 95 mmJ Ic = 20 N/mmm = 3 i C = 3x10 -12
N = 1N = 1 67676 000 c6 000 cyclesycles RFLRFL = 8,= 8,8989 yearsyears
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
er e ec ser e ec s
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
dd ll d ld l
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
er e ec ser e ec s
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
C S dC S d R il C iR il C i P d lP d l
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Decision:Decision:
The FM approach indicated a very short remaining fatigue life of
the bridges (aprox. 9 years).NOTE: The Railway Administration wants a guarantee for 48
years.
constructive point of view. Also the (direct) consolidation of riveted structures is complicated
and connected with high manufacturing costs.In this situation the replacement of the superstructures was
.
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
C St dC St d R il C iR il C i P d lP d l
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Decision:Decision:
The FM approach indicated a very short remaining fatigue life of
the bridges (aprox. 9 years).NOTE: The Railway Administration wants a guarantee for 48
years.
constructive point of view. Also the (direct) consolidation of riveted structures is complicated
and connected with high manufacturing costs.In this situation the replacement of the superstructures was
.
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010
Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
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Case StudyCase Study Railway CampinaRailway Campina PredealPredeal
Decision:Decision:
The FM approach indicated a very short remaining fatigue life of
the bridges (aprox. 9 years).NOTE: The Railway Administration wants a guarantee for 48
years.
constructive point of view. Also the (direct) consolidation of riveted structures is complicated
and connected with high manufacturing costs.In this situation the replacement of the superstructures was
.
Facultatea de ConstrucFacultatea de Construc iiii Timi oara / 20Timi oara / 201010