I dont understand why i am getting this error. I am attaching a file for small portion of a 170 m tower. I could not figure how i can omit the error. When i remove the truss command to space command, i don't get the error but will get the moment on member which is obvious so i would like to take advantage of truss command or else i have to design the member for bending also. Any suggestion in modelling/command? Please find the text file as follows: STAAD TRUSS START JOB INFORMATION ENGINEER DATE 15-Jan-14 END JOB INFORMATION INPUT WIDTH 79 UNIT METER KN JOINT COORDINATES 1 0 0 0; 2 28 0 0; 17 3.41667 13.3333 -3.41667; 19 24.5833 13.3333 -3.41667; 21 14 7.59322 -1.94576; 32 1.94576 7.59322 -1.94576; 34 26.0542 7.59322 -1.94576; 36 8.70833 10.4633 -2.68122; 37 19.2917 10.4633 -2.68122; 42 21 3.79661 -0.972882; 43 7 3.79661 -0.972882; 55 2.68122 10.4633 -2.68122; 58 0.972882 3.79661 -0.972882; 64 25.3188 10.4633 -2.68122; 67 27.0271 3.79661 -0.972881; 72 0 0 -28; 73 28 0 -28; 80 24.5833 13.3333 -24.5833; 82 26.0542 7.59322 -14; 86 26.0542 7.59322 -26.0542; 88 25.3188 10.4633 -8.70833; 89 25.3188 10.4633 -19.2917; 94 27.0271 3.79661 -21; 95 27.0271 3.79661 -7; 104 25.3188 10.4633 -25.3188; 107 27.0271 3.79661 -27.0271; 116 3.41667 13.3333 -24.5833; 118 14 7.59322 -26.0542; 122 1.94576 7.59322 -26.0542; 124 19.2917 10.4633 -25.3188; 125 8.70833 10.4633 -25.3188; 130 7 3.79661 -27.0271; 131 21 3.79661 -27.0271; 140 2.68122 10.4633 -25.3188; 143 0.972881 3.79661 -27.0271; 151 1.94576 7.59322 -14; 154 2.68122 10.4633 -19.2917; 155 2.68122 10.4633 -8.70833; 160 0.972881 3.79661 -7; 161 0.972881 3.79661 -21; 172 5.69477 10.4633 -5.69477; 173 22.3052 10.4633 -5.69477; 174 22.3052 10.4633 -22.3052; 175 5.69477 10.4633 -22.3052; MEMBER INCIDENCES 18 19 17; 21 17 55; 23 19 64; 28 17 36; 29 19 37; 37 21 42; 38 21 43; 51 32 58; 53 34 67; 60 36 21; 61 37 21; 66 42 2; 67 43 1; 72 43 36; 73 36 32; 74 43 32; 91 55 32; 94 58 1; 102 58 43; 103 55 36; 109 64 34; 112 67 2; 117 42 37; 118 37 34; 119 42 34; 129 67 42; 130 64 37; 148 80 19; 154 19 88; 155 80 89; 160 82 94; 161 82 95; 175 88 82; 176 89 82; 181 94 73; 182 95 2; 187 95 88; 188 88 34; 189 95 34; 202 67 95; 203 64 88; 212 107 73; 217 94 89; 218 89 86; 219 94 86; 229 107 94; 230 104 89; 239 116 80; 247 80 124; 248 116 125; 253 118 130; 254 118 131; 271 124 118; 272 125 118; 277 130 72; 278 131 73; 283 131 124; 284 124 86; 285 131 86; 303 107 131; 304 104 124; 313 143 72; 318 130 125; 319 125 122; 320 130 122; 330 143 130; 331 140 125; 339 17 116; 345 116 154; 346 17 155; 351 151 160; 352 151 161; 366 154 151; 367 155 151; 372 160 1; 373 161 72; 378 161 154; 379 154 122; 380 161 122; 398 143 161; 399 140 154; 407 160 155; 408 155 32; 409 160 32; 419 58 160; 420 55 155; 425 160 43; 426 155 172; 427 42 95; 428 37 173; 429 94 131; 430 89 174; 431 130 161; 432 125 175; 433 172 36; 434 173 88; 435 174 124; 436 175 154; 437 160 172; 438 43 172; 439 42 173; 440 95 173; 441 94 174; 442 131 174; 443 130 175; 444 161 175; 445 107 86; 446 143 122; 455 104 80; 456 86 104; 465 140 116; 466 122 140; 467 55 172; 468 64 173; 469 140 175; 470 104 174; DEFINE MATERIAL START ISOTROPIC STEEL E 2.05e+008 POISSON 0.3 DENSITY 76.8195 ALPHA 1.2e-005 DAMP 0.03 END DEFINE MATERIAL MEMBER PROPERTY INDIAN 18 21 23 28 29 37 38 51 53 60 61 66 67 72 TO 74 91 94 102 103 109 112 117 - 118 TO 119 129 130 148 154 155 160 161 175 176 181 182 187 TO 189 202 203 - 212 217 TO 219 229 230 239 247 248 253 254 271 272 277 278 283 TO 285 303 - 304 313 318 TO 320 330 331 339 345 346 351 352 366 367 372 373 378 TO 380 - 398 399 407 TO 409 419 420 425 TO 446 455 456 465 TO 469 - 470 TABLE ST ISA110X110X10 CONSTANTS MATERIAL STEEL ALL SUPPORTS 1 2 72 73 PINNED LOAD 1 LOADTYPE None TITLE DL JOINT LOAD 17 19 80 116 FX 936.6 PERFORM ANALYSIS PARAMETER 1 CODE INDIAN CHECK CODE ALL PARAMETER 2 CODE INDIAN STEEL MEMBER TAKE OFF LIST 18 21 23 28 29 37 38 51 53 60 61 66 67 72 TO 74 - 91 94 102 103 109 112 117 TO 119 129 130 148 154 155 160 161 175 176 181 - 182 187 TO 189 202 203 212 217 TO 219 229 230 239 247 248 253 254 271 272 - 277 278 283 TO 285 303 304 313 318 TO 320 330 331 339 345 346 351 352 366 - 367 372 373 378 TO 380 398 399 407 TO 409 419 420 425 TO 446 455 456 465 - 466 TO 470 PARAMETER 3 CODE INDIAN STEEL TAKE OFF LIST 18 21 23 28 29 37 38 51 53 60 61 66 67 72 TO 74 91 94 - 102 103 109 112 117 TO 119 129 130 148 154 155 160 161 175 176 181 182 187 - 188 TO 189 202 203 212 217 TO 219 229 230 239 247 248 253 254 271 272 277 - 278 283 TO 285 303 304 313 318 TO 320 330 331 339 345 346 351 352 366 367 - 372 373 378 TO 380 398 399 407 TO 409 419 420 425 TO 446 455 456 465 TO 470 FINISH
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