Dear Sir,
please find below staad file where main member (W21X83) has breaks in many parts horizontally with web at middle. please confirm in this case should I define UNT & UNB. Should I define UNB as total length of member (W21 X83). I have read many articles regarding UNT & UNB. also know the definition very well but I not getting the solution. so please do needful.
STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 07-Jun-17
END JOB INFORMATION
INPUT WIDTH 79
UNIT INCHES POUND
JOINT COORDINATES
3 152 0 36; 4 152 0 84; 5 167 0 36; 6 167 0 84; 7 230 0 36; 8 230 0 84;
9 308 0 36; 10 308 0 84; 11 389 0 36; 12 389 0 84; 13 533 0 36; 14 533 0 84;
17 614 0 36; 18 614 0 84; 19 692 0 36; 20 692 0 84; 21 754 0 36; 22 754 0 84;
23 769 0 36; 24 769 0 84; 82 308 50 36; 83 389 50 36; 84 389 50 84;
85 533 50 36; 86 533 50 84; 89 152 50 36; 90 167 50 36; 91 230 50 36;
93 152 50 84; 94 167 50 84; 95 230 50 84; 96 308 50 84; 107 308 25 36;
108 389 25 36; 109 389 25 84; 110 533 25 36; 111 533 25 84; 114 152 25 36;
115 167 25 36; 116 230 25 36; 118 152 25 84; 119 167 25 84; 120 230 25 84;
121 308 25 84; 134 461 0 60; 135 437 0 36; 136 437 0 84; 137 485 0 36;
138 485 0 84; 139 389 0 6; 140 533 0 6; 141 437 0 6; 142 485 0 6;
143 389 0 114; 144 533 0 114; 145 437 0 114; 146 485 0 114; 147 389 50 6;
148 533 50 6; 149 437 50 6; 150 485 50 6; 151 389 50 114; 152 533 50 114;
153 437 50 114; 154 485 50 114; 155 533 25 6; 156 533 25 114; 157 485 25 114;
158 437 25 114; 159 389 25 114; 160 389 25 6; 161 437 25 6; 162 485 25 6;
MEMBER INCIDENCES
5 3 5; 6 4 6; 8 5 7; 9 6 8; 11 7 9; 12 8 10; 14 9 11; 15 10 12; 17 11 135;
18 12 136; 20 13 17; 21 14 18; 25 17 18; 26 17 19; 27 18 20; 28 19 20;
29 19 21; 30 20 22; 31 21 22; 32 21 23; 33 22 24; 34 23 24; 36 5 8; 37 7 10;
38 9 12; 40 3 4; 41 5 6; 42 7 8; 43 9 10; 44 11 12; 45 13 14; 75 17 20;
76 19 22; 105 9 107; 106 11 108; 107 12 109; 108 13 110; 109 14 111; 112 3 114;
113 5 115; 114 7 116; 116 4 118; 117 6 119; 118 8 120; 119 10 121; 128 89 90;
129 90 91; 130 91 82; 132 82 83; 139 84 96; 141 96 95; 142 95 94; 143 94 93;
152 107 82; 153 108 83; 154 109 84; 155 110 85; 156 111 86; 159 114 89;
160 115 90; 161 116 91; 163 118 93; 164 119 94; 165 120 95; 166 121 96;
176 114 115; 177 115 116; 178 116 107; 180 107 108; 186 109 121; 188 121 120;
189 120 119; 190 119 118; 191 13 18; 192 135 137; 193 136 138; 194 135 136;
195 137 13; 196 138 14; 197 137 138; 198 11 136; 199 137 14; 200 139 141;
201 141 142; 202 142 140; 203 143 145; 204 145 146; 205 146 144; 206 140 13;
207 14 144; 208 12 143; 209 11 139; 210 139 160; 211 140 155; 212 141 161;
213 142 162; 214 143 159; 215 144 156; 216 145 158; 217 146 157; 218 147 148;
219 148 85; 220 85 86; 221 86 152; 222 111 110; 223 155 148; 224 110 155;
225 156 152; 226 111 156; 227 151 153; 228 153 154; 229 154 152; 230 157 154;
231 156 157; 232 158 153; 233 157 158; 234 159 151; 235 158 159; 236 109 159;
237 160 147; 238 108 160; 239 161 149; 240 160 161; 241 162 150; 242 161 162;
243 162 155; 244 147 83; 245 84 151;
START USER TABLE
TABLE 1 MC6XISA40
END
DEFINE MATERIAL START
ISOTROPIC STEEL
E 2.9e+007
POISSON 0.3
DENSITY 0.283
ALPHA 6e-006
DAMP 0.03
TYPE STEEL
STRENGTH FY 36000 FU 58000 RY 1.5 RT 1.2
END DEFINE MATERIAL
MEMBER PROPERTY AMERICAN
5 6 8 9 11 12 14 15 17 18 20 21 26 27 29 30 32 33 192 193 195 -
196 TABLE ST W21X83
44 45 200 TO 209 TABLE ST W6X12
36 TO 38 75 76 191 198 199 TABLE ST L40406
105 TO 109 112 TO 114 116 TO 119 128 TO 130 132 139 141 TO 143 152 TO 156 -
159 TO 161 163 TO 166 176 TO 178 180 186 188 TO 190 210 TO 244 -
245 TABLE ST PIPE OD 1.9 ID 1.61
UNIT METER KG
MEMBER PROPERTY AMERICAN
194 197 TABLE ST W8X31
25 28 31 34 40 TO 43 TABLE ST L25255
UNIT INCHES POUND
CONSTANTS
BETA 45 MEMB 36 TO 38 75 76
MATERIAL STEEL ALL
SUPPORTS
3 4 23 24 FIXED
UNIT METER KG
MEMBER TRUSS
36 TO 38 75 76
UNIT INCHES POUND
DEFINE WIND LOAD
TYPE 1 WIND 1
INT 0.163569 HEIG 393.7
EXP 0.3 JOINT 3 TO 14 17 TO 24 82 TO 86 89 TO 91 93 TO 96 107 TO 111 -
114 TO 116 118 TO 121
DEFINE IBC 2006
ZIP 70084 I 1 RX 3 RZ 4 SCLASS 3 CT 0.02 TL 8 FA 1 FV 1.374 K 1
SELFWEIGHT 1
JOINT WEIGHT
135 TO 138 WEIGHT 1102.31
134 WEIGHT 4409.25
FLOOR WEIGHT
YRANGE 0 0 FLOAD 0.142234 XRANGE -3.937 590.55 ZRANGE -3.937 118.11
YRANGE 0 0 FLOAD 0.71117 XRANGE -3.937 590.55 ZRANGE -3.937 118.11
LOAD 1 (SEISMIC LOAD IN X DIRECTION)
IBC LOAD X 0.75
LOAD 2 (SEISMIC LOAD IN Z DIRECTION)
IBC LOAD Z 0.75
LOAD 3 LOADTYPE Dead TITLE DEAD LOAD
SELFWEIGHT Y -1
MODAL CALCULATION REQUESTED
FLOOR LOAD
YRANGE 0 0 FLOAD -0.142234 XRANGE -3.937 590.55 ZRANGE -3.937 118.11 GY
UNIT METER KG
JOINT LOAD
135 TO 138 FY -500
JOINT LOAD
134 FY -2000
UNIT INCHES POUND
LOAD 4 LOADTYPE Live TITLE LIVE LOAD
UNIT METER KG
FLOOR LOAD
YRANGE 0 0 FLOAD -500 XRANGE -0.1 15 ZRANGE -0.1 3.1 GY
LOAD 5 LOADTYPE Wind TITLE WLX
WIND LOAD X 1 TYPE 1 OPEN
LOAD 6 LOADTYPE Wind TITLE WLZ
WIND LOAD Z 1 TYPE 1 OPEN
LOAD COMB 7 DL+LL
3 1.0 4 1.0
LOAD COMB 8 DL+WLX
3 1.0 5 1.0
LOAD COMB 9 DL+WLZ
3 1.0 6 1.0
LOAD COMB 10 DL+0.7SLX
3 1.0 1 0.7
LOAD COMB 11 DL+0.7SLZ
3 1.0 2 0.7
LOAD COMB 12 DL+0.75WLX+0.75LL
3 1.0 4 0.75 5 0.75
LOAD COMB 13 DL+0.75WLZ+0.75LL
3 1.0 4 0.75 6 0.75
LOAD COMB 14 DL+0.7SLX+0.75LL
3 1.0 4 0.75 1 0.7
LOAD COMB 15 DL+0.7SLZ+0.75LL
3 1.0 2 0.7 4 0.75
LOAD COMB 16 0.6DL+WLX
3 0.6 5 1.0
LOAD COMB 17 0.6DL+WLZ
3 0.6 6 1.0
LOAD COMB 18 0.6D+0.7SLX
3 0.6 1 0.7
LOAD COMB 19 0.6D+0.7SLZ
3 0.6 2 0.7
LOAD COMB 20 DL+LL+WLX
3 1.0 4 1.0 5 1.0
LOAD COMB 21 DL+LL+WLZ
3 1.0 4 1.0 6 1.0
LOAD COMB 22 DL+LL+SLX
3 1.0 4 1.0 1 1.0
LOAD COMB 23 DL+LL+SLZ
3 1.0 4 1.0 2 1.0
PERFORM ANALYSIS
DEFINE ENVELOPE
20 TO 23 ENVELOPE 1 TYPE SERVICEABILITY
7 TO 19 ENVELOPE 2 TYPE STRESS
END DEFINE ENVELOPE
LOAD LIST ENV 1
LOAD LIST ENV 2
PARAMETER 1
CODE AISC UNIFIED
METHOD ASD
TRACK 2 ALL
DFF 300 ALL
DJ1 3 MEMB 5 8 11 14 17 20 26 29 32 192 195
DJ2 23 MEMB 5 8 11 14 17 20 26 29 32 192 195
DJ1 4 MEMB 6 9 12 15 18 21 27 30 33 193 196
DJ2 24 MEMB 6 9 12 15 18 21 27 30 33 193 196
DJ1 3 MEMB 40
DJ2 4 MEMB 40
DJ1 5 MEMB 41
DJ2 6 MEMB 41
DJ1 7 MEMB 42
DJ2 8 MEMB 42
DJ1 9 MEMB 43
DJ2 10 MEMB 43
DJ1 17 MEMB 25
DJ2 18 MEMB 25
LZ 16 MEMB 5 8 11 14 17 20 26 29 32 192 195
LZ 16 MEMB 6 9 12 15 18 21 27 30 33 193 196
UNT 6 MEMB 21 27 30 33
UNT 6 MEMB 20 26 29 32
UNB 16 MEMB 5 8 11 14 17 20 26 29 32 192 195
UNB 16 MEMB 6 9 12 15 18 21 27 30 33 193 196
UNB 3.7 MEMB 203 TO 205
UNB 6 MEMB 21 27 30 33
UNB 3.7 MEMB 200 TO 202
UNB 6 MEMB 20 26 29 32
LZ 3.7 MEMB 200 TO 205
CHECK CODE ALL
PARAMETER 2
CODE AISC UNIFIED
STEEL TAKE OFF ALL
FINISH