Good day my fellow staad users. I am currently designing a steel portal on staad pro. i noticed that when i use the select command, it selects larger section than when i use my hand to design it myself.using BS 5950 2000
for example rafter size manual steel size : UB 533X201X122
staad will provide :UB914x 419x388
stanchion size manual UC 254X254x107
staad will provide UC 356X368X153
is there any way i can go about it to give me an economical member size ?
Please attach that STAAD.Pro model.
STAAD SPACE START JOB INFORMATION ENGINEER DATE 13-Feb-20 END JOB INFORMATION INPUT WIDTH 79 UNIT METER KN JOINT COORDINATES 1 0 0 0; 2 0 12 0; 3 30 0 0; 4 30 12 0; 5 60 0 0; 6 60 12 0; 7 90 0 0; 8 90 12 0; 9 120 0 0; 10 120 12 0; 11 150 0 0; 12 150 12 0; 13 15 15 0; 14 45 15 0; 15 75 15 0; 16 105 15 0; 17 135 15 0; 18 0 0 6; 19 0 12 6; 20 15 15 6; 21 30 0 6; 22 30 12 6; 23 45 15 6; 24 60 0 6; 25 60 12 6; 26 75 15 6; 27 90 0 6; 28 90 12 6; 29 105 15 6; 30 120 0 6; 31 120 12 6; 32 135 15 6; 33 150 0 6; 34 150 12 6; 35 0 0 12; 36 0 12 12; 37 15 15 12; 38 30 0 12; 39 30 12 12; 40 45 15 12; 41 60 0 12; 42 60 12 12; 43 75 15 12; 44 90 0 12; 45 90 12 12; 46 105 15 12; 47 120 0 12; 48 120 12 12; 49 135 15 12; 50 150 0 12; 51 150 12 12; 52 0 0 18; 53 0 12 18; 54 15 15 18; 55 30 0 18; 56 30 12 18; 57 45 15 18; 58 60 0 18; 59 60 12 18; 60 75 15 18; 61 90 0 18; 62 90 12 18; 63 105 15 18; 64 120 0 18; 65 120 12 18; 66 135 15 18; 67 150 0 18; 68 150 12 18; 69 0 0 24; 70 0 12 24; 71 15 15 24; 72 30 0 24; 73 30 12 24; 74 45 15 24; 75 60 0 24; 76 60 12 24; 77 75 15 24; 78 90 0 24; 79 90 12 24; 80 105 15 24; 81 120 0 24; 82 120 12 24; 83 135 15 24; 84 150 0 24; 85 150 12 24; 86 0 0 30; 87 0 12 30; 88 15 15 30; 89 30 0 30; 90 30 12 30; 91 45 15 30; 92 60 0 30; 93 60 12 30; 94 75 15 30; 95 90 0 30; 96 90 12 30; 97 105 15 30; 98 120 0 30; 99 120 12 30; 100 135 15 30; 101 150 0 30; 102 150 12 30; 103 0 0 36; 104 0 12 36; 105 15 15 36; 106 30 0 36; 107 30 12 36; 108 45 15 36; 109 60 0 36; 110 60 12 36; 111 75 15 36; 112 90 0 36; 113 90 12 36; 114 105 15 36; 115 120 0 36; 116 120 12 36; 117 135 15 36; 118 150 0 36; 119 150 12 36; 120 0 0 42; 121 0 12 42; 122 15 15 42; 123 30 0 42; 124 30 12 42; 125 45 15 42; 126 60 0 42; 127 60 12 42; 128 75 15 42; 129 90 0 42; 130 90 12 42; 131 105 15 42; 132 120 0 42; 133 120 12 42; 134 135 15 42; 135 150 0 42; 136 150 12 42; 137 0 0 48; 138 0 12 48; 139 15 15 48; 140 30 0 48; 141 30 12 48; 142 45 15 48; 143 60 0 48; 144 60 12 48; 145 75 15 48; 146 90 0 48; 147 90 12 48; 148 105 15 48; 149 120 0 48; 150 120 12 48; 151 135 15 48; 152 150 0 48; 153 150 12 48; MEMBER INCIDENCES 1 1 2; 2 2 13; 3 3 4; 4 4 14; 5 5 6; 6 6 15; 7 7 8; 8 8 16; 9 9 10; 10 10 17; 11 11 12; 12 13 4; 13 14 6; 14 15 8; 15 16 10; 16 17 12; 17 18 19; 18 19 20; 19 21 22; 20 22 23; 21 24 25; 22 25 26; 23 27 28; 24 28 29; 25 30 31; 26 31 32; 27 33 34; 28 20 22; 29 23 25; 30 26 28; 31 29 31; 32 32 34; 33 2 19; 34 4 22; 35 6 25; 36 8 28; 37 10 31; 38 12 34; 39 35 36; 40 36 37; 41 38 39; 42 39 40; 43 41 42; 44 42 43; 45 44 45; 46 45 46; 47 47 48; 48 48 49; 49 50 51; 50 37 39; 51 40 42; 52 43 45; 53 46 48; 54 49 51; 55 19 36; 56 22 39; 57 25 42; 58 28 45; 59 31 48; 60 34 51; 61 52 53; 62 53 54; 63 55 56; 64 56 57; 65 58 59; 66 59 60; 67 61 62; 68 62 63; 69 64 65; 70 65 66; 71 67 68; 72 54 56; 73 57 59; 74 60 62; 75 63 65; 76 66 68; 77 36 53; 78 39 56; 79 42 59; 80 45 62; 81 48 65; 82 51 68; 83 69 70; 84 70 71; 85 72 73; 86 73 74; 87 75 76; 88 76 77; 89 78 79; 90 79 80; 91 81 82; 92 82 83; 93 84 85; 94 71 73; 95 74 76; 96 77 79; 97 80 82; 98 83 85; 99 53 70; 100 56 73; 101 59 76; 102 62 79; 103 65 82; 104 68 85; 105 86 87; 106 87 88; 107 89 90; 108 90 91; 109 92 93; 110 93 94; 111 95 96; 112 96 97; 113 98 99; 114 99 100; 115 101 102; 116 88 90; 117 91 93; 118 94 96; 119 97 99; 120 100 102; 121 70 87; 122 73 90; 123 76 93; 124 79 96; 125 82 99; 126 85 102; 127 103 104; 128 104 105; 129 106 107; 130 107 108; 131 109 110; 132 110 111; 133 112 113; 134 113 114; 135 115 116; 136 116 117; 137 118 119; 138 105 107; 139 108 110; 140 111 113; 141 114 116; 142 117 119; 143 87 104; 144 90 107; 145 93 110; 146 96 113; 147 99 116; 148 102 119; 149 120 121; 150 121 122; 151 123 124; 152 124 125; 153 126 127; 154 127 128; 155 129 130; 156 130 131; 157 132 133; 158 133 134; 159 135 136; 160 122 124; 161 125 127; 162 128 130; 163 131 133; 164 134 136; 165 104 121; 166 107 124; 167 110 127; 168 113 130; 169 116 133; 170 119 136; 171 137 138; 172 138 139; 173 140 141; 174 141 142; 175 143 144; 176 144 145; 177 146 147; 178 147 148; 179 149 150; 180 150 151; 181 152 153; 182 139 141; 183 142 144; 184 145 147; 185 148 150; 186 151 153; 187 121 138; 188 124 141; 189 127 144; 190 130 147; 191 133 150; 192 136 153; 193 2 18; 194 19 1; 195 138 120; 196 121 137; 198 53 35; 199 36 52; 200 103 87; 201 104 86; 202 12 33; 203 34 11; 204 153 135; 205 136 152; 206 68 50; 207 51 67; 208 118 102; 209 119 101; 210 138 122; 211 121 139; 212 141 122; 213 139 124; 214 104 88; 215 87 105; 216 107 88; 217 105 90; 218 53 37; 219 36 54; 220 56 37; 221 54 39; 222 19 13; 223 2 20; 224 22 13; 225 20 4; 226 141 125; 227 124 142; 228 144 125; 229 142 127; 230 107 91; 231 90 108; 232 110 91; 233 108 93; 234 56 40; 235 39 57; 236 59 40; 237 57 42; 238 22 14; 239 4 23; 240 25 14; 241 23 6; 242 144 128; 243 127 145; 244 147 128; 245 145 130; 246 110 94; 247 93 111; 248 113 94; 249 111 96; 250 59 43; 251 42 60; 252 62 43; 253 60 45; 254 25 15; 255 6 26; 256 28 15; 257 26 8; 258 147 131; 259 130 148; 260 150 131; 261 148 133; 262 113 97; 263 96 114; 264 116 97; 265 114 99; 266 62 46; 267 45 63; 268 65 46; 269 63 48; 270 28 16; 271 8 29; 272 31 16; 273 29 10; 274 150 134; 275 133 151; 276 153 134; 277 151 136; 278 116 100; 279 99 117; 280 119 100; 281 117 102; 282 65 49; 283 48 66; 284 68 49; 285 66 51; 286 31 17; 287 10 32; 288 34 17; 289 32 12; START GROUP DEFINITION MEMBER _STANCHION 1 3 5 7 9 11 17 19 21 23 25 27 _RAFTER 2 4 6 8 10 12 TO 16 18 20 22 24 26 28 TO 32 _EAVESBEAM 33 TO 38 END GROUP DEFINITION DEFINE MATERIAL START ISOTROPIC STEEL E 2.05e+08 POISSON 0.3 DENSITY 76.8195 ALPHA 1.2e-05 DAMP 0.03 TYPE STEEL STRENGTH RY 1.5 RT 1.2 END DEFINE MATERIAL MEMBER PROPERTY BRITISH 2 4 6 8 10 12 TO 16 18 20 22 24 26 28 TO 32 40 42 44 46 48 50 TO 54 62 64 - 66 68 70 72 TO 76 84 86 88 90 92 94 TO 98 106 108 110 112 114 116 TO 120 - 128 130 132 134 136 138 TO 142 150 152 154 156 158 160 TO 164 172 174 176 - 178 180 182 TO 186 TABLE ST UB127X76X13 1 3 5 7 9 11 17 19 21 23 25 27 39 41 43 45 47 49 61 63 65 67 69 71 83 85 87 - 89 91 93 105 107 109 111 113 115 127 129 131 133 135 137 149 151 153 155 - 157 159 171 173 175 177 179 181 TABLE ST UC152X152X23 33 TO 38 55 TO 60 77 TO 82 99 TO 104 121 TO 126 143 TO 148 165 TO 170 187 - 188 TO 192 TABLE ST UB254X146X37 193 TO 196 198 TO 289 TABLE ST UA70X70X6 CONSTANTS MATERIAL STEEL ALL SUPPORTS 1 3 5 7 9 11 18 21 24 27 30 33 35 38 41 44 47 50 52 55 58 61 64 67 69 72 75 - 78 81 84 86 89 92 95 98 101 103 106 109 112 115 118 120 123 126 129 132 135 - 137 140 143 146 149 152 PINNED MEMBER RELEASE 33 TO 38 55 TO 60 77 TO 82 99 TO 104 121 TO 126 143 TO 148 165 TO 170 187 - 188 TO 192 START MPY 0.99 MPZ 0.99 33 TO 38 55 TO 60 77 TO 82 99 TO 104 121 TO 126 143 TO 148 165 TO 170 187 - 188 TO 192 END MPY 0.99 MPZ 0.99 MEMBER TENSION 193 TO 196 198 TO 289 DEFINE WIND LOAD TYPE 1 WIND 1 <! STAAD PRO GENERATED DATA DO NOT MODIFY !!! ASCE-7-2010:PARAMS 85.000 MPH 0 1 1 0 0.000 FT 0.000 FT 0.000 FT 1 1 40.000 - FT 30.000 FT 25.000 FT 2.000 0.010 0 0 0 0 0 0.761 1.000 1.000 0.850 0 0 0 0 - 0.866 0.800 -0.550 !> END GENERATED DATA BLOCK INT 0.614555 0.614555 0.625063 0.634749 0.643753 0.652179 0.66011 0.667609 - 0.67473 0.681515 0.688 0.694215 0.700185 0.705932 0.711476 HEIG 0 4.572 - 5.15815 5.74431 6.33046 6.91662 7.50277 8.08892 8.67508 9.26123 9.84739 - 10.4335 11.0197 11.6059 12.192 EXP 1 JOINT 2 4 6 8 10 12 TO 17 19 20 22 23 25 26 28 29 31 32 34 36 37 39 - 40 42 43 45 46 48 49 51 53 54 56 57 59 60 62 63 65 66 68 70 71 73 74 76 77 - 79 80 82 83 85 87 88 90 91 93 94 96 97 99 100 102 104 105 107 108 110 111 - 113 114 116 117 119 121 122 124 125 127 128 130 131 133 134 136 138 139 141 - 142 144 145 147 148 150 151 153 LOAD 1 LOADTYPE Dead TITLE DEAD LOAD SELFWEIGHT Y -1 MEMBER LOAD 2 4 6 8 10 12 TO 16 18 20 22 24 26 28 TO 32 40 42 44 46 48 50 TO 54 62 64 - 66 68 70 72 TO 76 84 86 88 90 92 94 TO 98 106 108 110 112 114 116 TO 120 - 128 130 132 134 136 138 TO 142 150 152 154 156 158 160 TO 164 172 174 176 - 178 180 182 TO 186 UNI GY -3 LOAD 2 LOADTYPE Wind TITLE WX MEMBER LOAD 1 171 LIN Y -1 -1.5 11 181 LIN Y 1 1.5 17 39 61 83 105 127 149 LIN Y -2 -2.9 27 49 71 93 115 137 159 LIN Y 2 2.9 LOAD 3 LOADTYPE Wind TITLE WZ MEMBER LOAD 1 11 LIN Z 5 7.3 171 181 LIN Z -5 -7.3 173 175 177 179 LIN Z -10.1 -14.6 3 5 7 9 LIN Z 10.1 14.6 PERFORM ANALYSIS PARAMETER 1 CODE BS5950 TRACK 2 ALL SELECT MEMB 1 TO 32 39 TO 54 61 TO 76 83 TO 98 105 TO 120 127 TO 142 - 149 TO 164 171 TO 186 GROUP MEMB 2 4 6 8 10 12 TO 16 18 20 22 24 26 28 TO 32 40 42 44 46 48 - 50 TO 54 62 64 66 68 70 72 TO 76 84 86 88 90 92 94 TO 98 106 108 110 112 - 114 116 TO 120 128 130 132 134 136 138 TO 142 150 152 154 156 158 - 160 TO 164 172 174 176 178 180 182 TO 186 GROUP MEMB 1 3 5 7 9 11 17 19 21 23 25 27 39 41 43 45 47 49 61 63 65 67 69 - 71 83 85 87 89 91 93 105 107 109 111 113 115 127 129 131 133 135 137 149 - 151 153 155 157 159 171 173 175 177 179 181 PERFORM ANALYSIS PARAMETER 2 CODE BS5950 CHECK CODE MEMB 1 TO 32 39 TO 54 61 TO 76 83 TO 98 105 TO 120 127 TO 142 149 - 150 TO 164 171 TO 186 FINISH
this is the model