Week 12 Challenge
Aim: To calculate the Barge Impact load of the Panamax vessel on the bridge and to create and analyse the bridge in STaad pro
Introduction : The given bridge is a truss bridge with span of the Bridge is 12m and width of the bridge is 7m. Supported by Piers of size 2.5 m x 2.5m. The Rise of the bridge is 5m. Sections for the Truss members shall be assumed. The Deck slab is 500mm thick. The cross Girders are 0.75 m x 1.8 m dimensions. Suitable data can be assumed for other elements. Hydrodynamic coefficient as 1.25. The Dead weight tonnage of Panamax vessel is 52500 DWT. The Ship can accommodate maximum of 4500 containers. Each container is of standard 6.1 TEU. It is the heaviest manmade ship maximum load taking ship in the world which carries goods to and fro between eastern & western countries. Speed of the Barge is 60Km/hr.
Procedure:
Step 1 : To Calculate Barge Impact Load
Barge Collision Energy KE = 500xChxWxV^2
Ch= Hydrodynamic coefficient = 1.25
W = 52500 T
V = 60km/hr = 16.67m/s
Therefore KE= 9.13x10^9 Nm
Barge damage depth aB = 3100x([1+1.3x10^-7xKE]^0.5-1) = 103540 mm
Barge collision impact force PB = 6x10^6+1600aB = 171520 kN
Step 2 : To create STaad Pro model and apply barge impact load
Open Staad Pro, create 1st node at 0,0,0 (X,Y,Z as Longitudinal,Vertical,Transverse respectively) and 2nd node 0,5,0 for pier height. Add beam between node 1 &2 and add fixed support to the bottom node. Assign concrete rectangle property of 2.5x2.5m to the pier. Copy paste the pier at X=12m as span of bridge is 12m and then copy both these piers at Z=7m as width of bridge is 7m.
Now add cross girders to the Structure by adding beams in Z direction
Add following property to cross girders
Create Longitudinal girders by adding beams between cross girders and all other truss members are assigned property below
Now add plate mesh of 0.5x1.2m for deck of span 12x7m and 0.5m thk.
Now assign barge impact load as calculated above
Results:
Deflection diagram
Bending moment diagram
Maximum force in Longitudinal girder
Maximum force in cross girder
Max force in pier
Shear force diagram
Report:
1. STAAD SPACE
INPUT FILE: C:\Users\Muthulakshmi\Downloads\Old Laptop data of 1st week\Challenge Staad\Challenge 12 B.. .STD
2. START JOB INFORMATION
3. ENGINEER DATE 21-JUL-22
4. END JOB INFORMATION
5. INPUT WIDTH 79
6. UNIT METER KN
7. JOINT COORDINATES
8. 1 0 0 0; 2 0 5.00001 0; 3 12 5.00001 0; 4 12 0 0; 5 0 5.00001 7.00001
9. 6 0 0 7.00001; 7 12 5.00001 7.00001; 8 12 0 7.00001; 9 1.2 5.00001 0
10. 10 1.2 5.00001 7.00001; 11 2.4 5.00001 0; 12 2.4 5.00001 7.00001
11. 13 3.60001 5.00001 0; 14 3.60001 5.00001 7.00001; 15 4.80001 5.00001 0
12. 16 4.80001 5.00001 7.00001; 17 6.00001 5.00001 0; 18 6.00001 5.00001 7.00001
13. 19 7.20001 5.00001 0; 20 7.20001 5.00001 7.00001; 21 8.40002 5.00001 0
14. 22 8.40002 5.00001 7.00001; 23 9.60002 5.00001 0; 24 9.60002 5.00001 7.00001
15. 25 10.8 5.00001 0; 26 10.8 5.00001 7.00001; 27 6.00001 10 0
16. 28 6.00001 10 7.00001; 41 1.2 6.50001 0; 42 1.2 6.50001 7.00001
17. 43 10.8 6.50001 0; 44 10.8 6.50001 7.00001; 45 4.80001 9.70002 0
18. 46 4.80001 9.70002 7.00001; 47 7.20001 9.70002 0; 48 7.20001 9.70002 7.00001
19. 49 3.60001 9.20002 0; 50 3.60001 9.20002 7.00001; 51 8.40002 9.20002 0
20. 52 8.40002 9.20002 7.00001; 53 2.4 8.10002 0; 54 2.4 8.10002 7.00001
21. 55 9.60002 8.10002 0; 56 9.60002 8.10002 7.00001; 57 3.60001 9.20002 3.50001
22. 58 4.80001 9.70002 3.50001; 59 6.00001 10 3.50001; 60 7.20001 9.70002 3.50001
23. 61 8.40002 9.20002 3.50001; 62 12 5.00001 0.500001; 63 12 5.00001 1
24. 64 12 5.00001 1.5; 65 12 5.00001 2; 66 12 5.00001 2.5; 67 12 5.00001 3.00001
25. 68 12 5.00001 3.50001; 69 12 5.00001 4.00001; 70 12 5.00001 4.50001
26. 71 12 5.00001 5.00001; 72 12 5.00001 5.50001; 73 12 5.00001 6.00001
27. 74 12 5.00001 6.50001; 75 0 5.00001 0.500001; 76 0 5.00001 1; 77 0 5.00001 1.5
28. 78 0 5.00001 2; 79 0 5.00001 2.5; 80 0 5.00001 3.00001; 81 0 5.00001 3.50001
29. 82 0 5.00001 4.00001; 83 0 5.00001 4.50001; 84 0 5.00001 5.00001
30. 85 0 5.00001 5.50001; 86 0 5.00001 6.00001; 87 0 5.00001 6.50001
31. 88 1.2 5.00001 5.50001; 89 1.2 5.00001 4.50001; 90 1.2 5.00001 3.50001
32. 91 1.2 5.00001 1.5; 92 1.2 5.00001 1; 93 1.2 5.00001 0.500001
33. 94 2.4 5.00001 5.50001; 95 2.4 5.00001 4.50001; 96 2.4 5.00001 3.50001
34. 97 2.4 5.00001 1.5; 98 2.4 5.00001 1; 99 2.4 5.00001 0.500001
35. 100 3.60001 5.00001 5.50001; 101 3.60001 5.00001 4.50001
36. 102 3.60001 5.00001 3.50001; 103 3.60001 5.00001 1.5; 104 3.60001 5.00001 1
37. 105 3.60001 5.00001 0.500001; 106 4.80001 5.00001 5.50001
38. 107 4.80001 5.00001 4.50001; 108 4.80001 5.00001 3.50001
STAAD SPACE -- PAGE NO. 2
39. 109 4.80001 5.00001 1.5; 110 4.80001 5.00001 1; 111 4.80001 5.00001 0.500001
40. 112 6.00001 5.00001 5.50001; 113 6.00001 5.00001 4.50001
41. 114 6.00001 5.00001 3.50001; 115 6.00001 5.00001 1.5; 116 6.00001 5.00001 1
42. 117 6.00001 5.00001 0.500001; 118 7.20001 5.00001 5.50001
43. 119 7.20001 5.00001 4.50001; 120 7.20001 5.00001 3.50001
44. 121 7.20001 5.00001 1.5; 122 7.20001 5.00001 1; 123 7.20001 5.00001 0.500001
45. 124 9.60002 5.00001 5.50001; 125 9.60002 5.00001 4.50001
46. 126 9.60002 5.00001 3.50001; 127 9.60002 5.00001 1.5; 128 9.60002 5.00001 1
47. 129 9.60002 5.00001 0.500001; 130 10.8 5.00001 5.50001
48. 131 10.8 5.00001 4.50001; 132 10.8 5.00001 3.50001; 133 10.8 5.00001 1.5
49. 134 10.8 5.00001 1; 135 10.8 5.00001 0.500001; 136 10.8 5.00001 2
50. 137 9.60002 5.00001 2; 138 6.00001 5.00001 2; 139 4.80001 5.00001 2
51. 140 2.4 5.00001 2; 141 1.2 5.00001 2; 142 10.8 5.00001 2.5
52. 143 9.60002 5.00001 2.5; 144 6.00001 5.00001 2.5; 145 4.80001 5.00001 2.5
53. 146 2.4 5.00001 2.5; 147 1.2 5.00001 2.5; 148 10.8 5.00001 3.00001
54. 149 9.60002 5.00001 3.00001; 150 6.00001 5.00001 3.00001
55. 151 4.80001 5.00001 3.00001; 152 2.4 5.00001 3.00001; 153 1.2 5.00001 3.00001
56. 154 10.8 5.00001 4.00001; 155 9.60002 5.00001 4.00001
57. 156 7.20001 5.00001 4.00001; 157 6.00001 5.00001 4.00001
58. 158 4.80001 5.00001 4.00001; 159 3.60001 5.00001 4.00001
59. 160 2.4 5.00001 4.00001; 161 1.2 5.00001 4.00001; 162 10.8 5.00001 5.00001
60. 163 7.20001 5.00001 5.00001; 164 6.00001 5.00001 5.00001
61. 165 3.60001 5.00001 5.00001; 166 1.2 5.00001 5.00001
62. 167 9.60002 5.00001 6.00001; 168 7.20001 5.00001 6.00001
63. 169 6.00001 5.00001 6.00001; 170 4.80001 5.00001 6.00001
64. 171 3.60001 5.00001 6.00001; 172 2.4 5.00001 6.00001; 173 1.2 5.00001 6.00001
65. 174 9.60002 5.00001 6.50001; 175 7.20001 5.00001 6.50001
66. 176 6.00001 5.00001 6.50001; 177 4.80001 5.00001 6.50001
67. 178 3.60001 5.00001 6.50001; 179 2.4 5.00001 6.50001; 180 1.2 5.00001 6.50001
68. 181 2.4 5.00001 5.00001; 182 3.60001 5.00001 3.00001; 183 3.60001 5.00001 2.5
69. 184 3.60001 5.00001 2; 185 4.80001 5.00001 5.00001
70. 186 7.20001 5.00001 3.00001; 187 7.20001 5.00001 2.5; 188 7.20001 5.00001 2
71. 189 9.60002 5.00001 5.00001; 190 10.8 5.00001 6.50001
72. 191 10.8 5.00001 6.00001; 192 8.40002 5.00001 0.500001
73. 193 8.40002 5.00001 5.50001; 194 8.40002 5.00001 6.00001
74. 195 8.40002 5.00001 4.50001; 196 8.40002 5.00001 5.00001
75. 197 8.40002 5.00001 3.50001; 198 8.40002 5.00001 4.00001
76. 199 8.40002 5.00001 1.5; 200 8.40002 5.00001 2; 201 8.40002 5.00001 1
77. 202 8.40002 5.00001 6.50001; 203 8.40002 5.00001 3.00001
78. 204 8.40002 5.00001 2.5
79. MEMBER INCIDENCES
80. 1 2 1; 2 3 4; 3 5 6; 4 7 8; 6 3 62; 7 9 93; 8 11 99; 9 13 105; 10 15 111
81. 11 17 117; 12 19 123; 14 23 129; 15 25 135; 16 5 10; 17 10 12; 18 12 14
82. 19 14 16; 20 16 18; 21 18 20; 22 20 22; 23 22 24; 24 24 26; 25 26 7; 27 9 11
83. 28 11 13; 29 13 15; 30 15 17; 31 17 19; 32 19 21; 33 21 23; 34 23 25; 35 25 3
84. 36 2 41; 37 41 53; 38 53 49; 39 49 45; 40 45 27; 41 27 47; 42 47 51; 43 51 55
85. 44 55 43; 45 43 3; 46 41 9; 47 53 11; 48 49 13; 49 45 15; 50 27 17; 51 47 19
86. 52 51 21; 53 55 23; 54 43 25; 55 5 42; 56 42 54; 57 54 50; 58 50 46; 59 46 28
87. 60 28 48; 61 48 52; 62 52 56; 63 56 44; 64 44 7; 65 42 10; 66 54 12; 67 50 14
88. 68 46 16; 69 28 18; 70 48 20; 71 52 22; 72 56 24; 73 44 26; 74 41 42; 75 53 54
89. 76 49 57; 77 45 58; 78 27 59; 79 47 60; 80 51 61; 81 55 56; 82 43 44; 83 57 50
90. 84 58 46; 85 59 28; 86 60 48; 87 61 52; 88 53 57; 89 54 57; 90 49 58; 91 50 58
91. 92 45 59; 93 46 59; 94 47 59; 95 48 59; 96 51 60; 97 52 60; 98 55 61; 99 56 61
92. 100 2 75; 101 2 9; 102 62 63; 103 63 64; 104 64 65; 105 65 66; 106 66 67
93. 107 67 68; 108 68 69; 109 69 70; 110 70 71; 111 71 72; 112 72 73; 113 73 74
94. 114 74 7; 115 75 76; 116 76 77; 117 77 78; 118 78 79; 119 79 80; 120 80 81
STAAD SPACE -- PAGE NO. 3
95. 121 81 82; 122 82 83; 123 83 84; 124 84 85; 125 85 86; 126 86 87; 127 87 5
96. 141 88 173; 142 89 166; 143 90 161; 144 91 141; 145 92 91; 146 93 92
97. 147 94 172; 148 95 181; 149 96 160; 150 97 140; 151 98 97; 152 99 98
98. 153 100 171; 154 101 165; 155 102 159; 156 103 184; 157 104 103; 158 105 104
99. 159 106 170; 160 107 185; 161 108 158; 162 109 139; 163 110 109; 164 111 110
100. 165 112 169; 166 113 164; 167 114 157; 168 115 138; 169 116 115; 170 117 116
101. 171 118 168; 172 119 163; 173 120 156; 174 121 188; 175 122 121; 176 123 122
102. 177 124 167; 178 125 189; 179 126 155; 180 127 137; 181 128 127; 182 129 128
103. 183 130 191; 184 131 162; 185 132 154; 186 133 136; 187 134 133; 188 135 134
104. 282 180 10; 283 173 180; 284 166 88; 285 161 89; 286 153 90; 287 147 153
105. 288 141 147; 289 179 12; 290 172 179; 291 181 94; 292 160 95; 293 152 96
106. 294 146 152; 295 140 146; 296 178 14; 297 171 178; 298 165 100; 299 159 101
107. 300 182 102; 301 183 182; 302 184 183; 303 177 16; 304 170 177; 305 185 106
108. 306 158 107; 307 151 108; 308 145 151; 309 139 145; 310 176 18; 311 169 176
109. 312 164 112; 313 157 113; 314 150 114; 315 144 150; 316 138 144; 317 175 20
110. 318 168 175; 319 163 118; 320 156 119; 321 186 120; 322 187 186; 323 188 187
111. 324 174 24; 325 167 174; 326 189 124; 327 155 125; 328 149 126; 329 143 149
112. 330 137 143; 331 190 26; 332 191 190; 333 162 130; 334 154 131; 335 148 132
113. 336 142 148; 337 136 142; 484 21 192; 485 193 194; 486 195 196; 487 197 198
114. 488 199 200; 489 201 199; 490 192 201; 491 202 22; 492 194 202; 493 196 193
115. 494 198 195; 495 203 197; 496 204 203; 497 200 204
116. ELEMENT INCIDENCES SHELL
117. 358 3 62 135 25; 359 9 93 75 2; 360 9 93 99 11; 361 11 99 105 13
118. 362 13 105 111 15; 363 15 111 117 17; 364 17 117 123 19; 365 23 129 135 25
119. 366 5 10 180 87; 367 10 12 179 180; 368 12 14 178 179; 369 14 16 177 178
120. 370 16 18 176 177; 371 18 20 175 176; 373 24 26 190 174; 374 26 7 74 190
121. 376 62 63 134 135; 377 63 64 133 134; 378 64 65 136 133; 379 65 66 142 136
122. 380 66 67 148 142; 381 67 68 132 148; 382 68 69 154 132; 383 69 70 131 154
123. 384 70 71 162 131; 385 71 72 130 162; 386 72 73 191 130; 387 73 74 190 191
124. 388 75 76 92 93; 389 76 77 91 92; 390 77 78 141 91; 391 78 79 147 141
125. 392 79 80 153 147; 393 80 81 90 153; 394 81 82 161 90; 395 82 83 89 161
126. 396 83 84 166 89; 397 84 85 88 166; 398 85 86 173 88; 399 86 87 180 173
127. 400 88 173 172 94; 401 92 91 97 98; 402 93 92 98 99; 403 94 172 171 100
128. 404 95 181 166 89; 405 95 181 165 101; 406 96 160 159 102; 407 96 160 161 90
129. 408 97 140 184 103; 409 97 140 141 91; 410 98 97 103 104; 411 99 98 104 105
130. 412 100 171 170 106; 413 101 165 185 107; 414 102 159 158 108
131. 415 103 184 139 109; 416 104 103 109 110; 417 105 104 110 111
132. 418 106 170 169 112; 419 107 185 164 113; 420 108 158 157 114
133. 421 109 139 138 115; 422 110 109 115 116; 423 111 110 116 117
134. 424 112 169 168 118; 425 113 164 163 119; 426 114 157 156 120
135. 427 115 138 188 121; 428 116 115 121 122; 429 117 116 122 123
136. 436 124 167 191 130; 437 125 189 162 131; 438 126 155 154 132
137. 439 127 137 136 133; 440 128 127 133 134; 441 129 128 134 135
138. 442 137 136 142 143; 443 139 138 144 145; 444 141 140 146 147
139. 445 143 142 148 149; 446 144 187 186 150; 447 144 187 188 138
140. 448 145 144 150 151; 449 146 183 182 152; 450 146 183 184 140
141. 451 147 146 152 153; 452 149 148 132 126; 453 150 186 120 114
142. 454 151 150 114 108; 455 152 182 102 96; 456 153 152 96 90
143. 458 102 108 151 182; 459 155 154 131 125; 461 157 156 119 113
144. 462 158 157 113 107; 463 159 158 107 101; 464 160 159 101 95
145. 465 161 160 95 89; 466 164 163 118 112; 467 124 130 162 189
146. 469 106 112 164 185; 470 100 106 185 165; 471 94 100 165 181
147. 472 88 94 181 166; 473 167 191 190 174; 475 169 168 175 176
148. 476 170 169 176 177; 477 171 170 177 178; 478 172 171 178 179
149. 479 173 172 179 180; 480 183 182 151 145; 481 184 183 145 139
150. 498 19 123 192 21; 499 20 22 202 175; 500 118 168 194 193; 501 119 163 196 195
STAAD SPACE -- PAGE NO. 4
151. 502 120 156 198 197; 503 121 188 200 199; 504 122 121 199 201
152. 505 123 122 201 192; 506 187 204 203 186; 507 187 204 200 188
153. 508 186 203 197 120; 509 156 198 195 119; 510 163 196 193 118
154. 511 168 194 202 175; 512 21 192 129 23; 513 22 24 174 202; 514 193 194 167 124
155. 515 195 196 189 125; 516 197 198 155 126; 517 199 200 137 127
156. 518 201 199 127 128; 519 192 201 128 129; 520 204 143 149 203
157. 521 204 143 137 200; 522 203 149 126 197; 523 198 155 125 195
158. 524 196 189 124 193; 525 194 167 174 202
159. ELEMENT PROPERTY
160. 358 TO 371 373 374 376 TO 429 436 TO 456 458 459 461 TO 467 469 TO 473 475 -
161. 476 TO 481 498 TO 525 THICKNESS 0.5
162. DEFINE MATERIAL START
163. ISOTROPIC CONCRETE
164. E 2.17184E+07
165. POISSON 0.17
166. DENSITY 23.5615
167. ALPHA 5.5E-06
168. DAMP 0.05
169. G 9.28137E+06
170. TYPE CONCRETE
171. STRENGTH FCU 27578.9
172. END DEFINE MATERIAL
173. MEMBER PROPERTY
174. 1 TO 4 PRIS YD 2.5 ZD 2.5
175. 6 100 102 TO 127 PRIS YD 1.8 ZD 0.75
176. 7 TO 12 14 TO 25 27 TO 99 101 141 TO 188 282 TO 337 484 TO 496 -
177. 497 PRIS YD 0.3 ZD 0.3
178. CONSTANTS
179. MATERIAL CONCRETE ALL
180. SUPPORTS
181. 1 4 6 8 FIXED
182. LOAD 1 LOADTYPE NONE TITLE BARGE IMPACT LOAD
183. JOINT LOAD
184. 18 FZ -171520
185. PERFORM ANALYSIS
P R O B L E M S T A T I S T I C S
-----------------------------------
NUMBER OF JOINTS 192 NUMBER OF MEMBERS 242
NUMBER OF PLATES 140 NUMBER OF SOLIDS 0
NUMBER OF SURFACES 0 NUMBER OF SUPPORTS 4
Using 64-bit analysis engine.
SOLVER USED IS THE IN-CORE ADVANCED MATH SOLVER
TOTAL PRIMARY LOAD CASES = 1, TOTAL DEGREES OF FREEDOM = 1128
TOTAL LOAD COMBINATION CASES = 0 SO FAR.
STAAD SPACE -- PAGE NO. 5
186. FINISH