Error during cable analysis

Hello Sir,

I am designing steel frame building using ASD method but during analysis staad is giving me the error " Each load combination must be followed by perfom cable analysis then change". unfortunately i am unable to solve this error. please help me with that.

Parents
  • Please attach the mentioned STAAD.Pro model for the investigation.



  • STAAD SPACE
    START JOB INFORMATION
    ENGINEER DATE 13-Aug-16
    END JOB INFORMATION
    INPUT WIDTH 79
    UNIT FEET KIP
    JOINT COORDINATES
    1 0 0 0; 2 0 25 0; 3 37.5 28.75 0; 4 75 0 0; 5 75 25 0; 6 18.75 26.875 0;
    7 56.25 26.875 0; 8 0 0 25; 9 0 25 25; 10 37.5 28.75 25; 11 75 0 25;
    12 75 25 25; 13 18.75 26.875 25; 14 56.25 26.875 25; 15 0 0 50; 16 0 25 50;
    17 37.5 28.75 50; 18 75 0 50; 19 75 25 50; 20 18.75 26.875 50;
    21 56.25 26.875 50; 22 0 0 75; 23 0 25 75; 24 37.5 28.75 75; 25 75 0 75;
    26 75 25 75; 27 18.75 26.875 75; 28 56.25 26.875 75; 29 0 0 100; 30 0 25 100;
    31 37.5 28.75 100; 32 75 0 100; 33 75 25 100; 34 18.75 26.875 100;
    35 56.25 26.875 100; 36 0 0 125; 37 0 25 125; 38 37.5 28.75 125; 39 75 0 125;
    40 75 25 125; 41 18.75 26.875 125; 42 56.25 26.875 125; 43 18.75 0 0;
    44 56.25 0 0; 45 18.75 0 125; 46 56.25 0 125; 47 37.5 0 0; 48 37.5 0 125;
    MEMBER INCIDENCES
    1 1 2; 2 2 6; 3 4 5; 4 5 7; 5 6 3; 6 7 3; 7 8 9; 8 9 13; 9 11 12; 10 12 14;
    11 13 10; 12 14 10; 13 15 16; 14 16 20; 15 18 19; 16 19 21; 17 20 17; 18 21 17;
    19 22 23; 20 23 27; 21 25 26; 22 26 28; 23 27 24; 24 28 24; 25 29 30; 26 30 34;
    27 32 33; 28 33 35; 29 34 31; 30 35 31; 31 36 37; 32 37 41; 33 39 40; 34 40 42;
    35 41 38; 36 42 38; 37 30 27; 38 23 34; 39 34 24; 40 27 31; 41 33 28; 42 26 35;
    43 35 24; 44 28 31; 45 30 22; 46 23 29; 47 16 13; 48 9 20; 49 20 10; 50 13 17;
    51 19 14; 52 12 21; 53 21 10; 54 14 17; 55 16 8; 56 9 15; 57 19 11; 58 12 18;
    59 2 9; 60 9 16; 61 16 23; 62 23 30; 63 30 37; 64 5 12; 65 12 19; 66 19 26;
    67 26 33; 68 33 40; 69 3 10; 70 10 17; 71 17 24; 72 24 31; 73 31 38; 74 26 32;
    75 25 33; 76 6 43; 77 7 44; 78 41 45; 79 42 46; 80 3 47; 81 38 48; 82 41 34;
    83 34 27; 84 27 20; 85 20 13; 86 13 6; 87 7 14; 88 14 21; 89 21 28; 90 28 35;
    91 35 42;
    START GROUP DEFINITION
    MEMBER
    _INNER-RFT 8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30
    _OUTR-RFT 2 4 TO 6 32 34 TO 36
    _OUTR-COL 1 3 31 33
    _INNR-COL 7 9 13 15 19 21 25 27
    _BRACING 37 TO 58 74 75
    _PIPE 59 TO 73 82 TO 91
    _WIND-COL 76 TO 81
    _RAFTERS 2 4 TO 6 8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 32 34 TO 36
    _COLUMNS 1 3 7 9 13 15 19 21 25 27 31 33 76 TO 81
    JOINT
    END GROUP DEFINITION
    START USER TABLE
    TABLE 1
    UNIT FEET POUND
    WIDE FLANGE
    W200-6-F100-8
    0.0301391 0.708661 0.019685 0.328084 0.026247 0.00246951 0.000154901 -
    5.62327e-006 0.01395 0.0114816 0.328084 0.026247
    END
    UNIT FEET KIP
    DEFINE MATERIAL START
    ISOTROPIC STEEL
    E 4.176e+006
    POISSON 0.3
    DENSITY 0.489024
    ALPHA 6e-006
    DAMP 0.03
    TYPE STEEL
    STRENGTH FY 5184 FU 8352 RY 1.5 RT 1.2
    G 1.60615e+006
    ISOTROPIC ASTM_A572_GR.50
    E 4.176e+006
    POISSON 0.3
    DENSITY 0.489024
    ALPHA 6e-006
    DAMP 0.003
    TYPE STEEL
    STRENGTH FY 7199.99 FU 9359.99 RY 1.1 RT 1.1
    END DEFINE MATERIAL
    MEMBER PROPERTY AMERICAN
    37 TO 58 74 75 PRIS YD 0.03937
    1 3 7 9 13 15 19 21 25 27 31 -
    33 TAPERED 1.02362 0.0131233 2.82808 0.59055 0.019685 0.59055 0.019685
    2 4 8 10 14 16 20 22 26 28 32 -
    34 TAPERED 2.82808 0.0131233 2.17191 0.59055 0.019685 0.59055 0.019685
    5 6 11 12 17 18 23 24 29 30 35 -
    36 TAPERED 2.17191 0.0131233 1.51575 0.59055 0.019685 0.59055 0.019685
    UNIT MMS NEWTON
    MEMBER PROPERTY AMERICAN
    59 TO 73 82 TO 91 TABLE ST PIPE OD 100 ID 90
    UNIT FEET POUND
    MEMBER PROPERTY COLDFORMED AMERICAN
    76 TO 81 UPTABLE 1 W200-6-F100-8
    UNIT FEET KIP
    CONSTANTS
    BETA 90 MEMB 76 TO 81
    MATERIAL STEEL MEMB 37 TO 75 82 TO 91
    MATERIAL ASTM_A572_GR.50 MEMB 1 TO 36 76 TO 81
    SUPPORTS
    1 4 8 11 15 18 22 25 29 32 36 39 43 TO 48 PINNED
    UNIT MMS NEWTON
    MEMBER RELEASE
    59 TO 73 76 TO 91 START MY MZ
    59 TO 73 82 TO 91 END MY MZ
    UNIT FEET POUND
    MEMBER CABLE
    37 TO 58 74 75 LENGTH 0
    UNIT MMS NEWTON
    DEFINE UBC LOAD
    ZONE 0.15 I 1 RWX 4.5 RWZ 3.5 STYP 4 CT 0.028 NA 1 NV 1
    SELFWEIGHT 1
    LOAD 1 LOADTYPE Seismic TITLE EX+
    SELFWEIGHT X 1
    LOAD 2 LOADTYPE Seismic TITLE EX-
    SELFWEIGHT X -1
    LOAD 3 LOADTYPE Seismic TITLE EZ+
    SELFWEIGHT Z 1
    LOAD 4 LOADTYPE Seismic TITLE EZ-
    SELFWEIGHT Z -1
    LOAD 5 LOADTYPE Dead TITLE DL
    UNIT FEET POUND
    MEMBER LOAD
    2 4 TO 6 32 34 TO 36 UNI GY -63
    8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 UNI GY -125
    SELFWEIGHT Y -1
    UNIT MMS NEWTON
    LOAD 6 LOADTYPE Dead TITLE RL
    UNIT FEET POUND
    MEMBER LOAD
    2 4 TO 6 32 34 TO 36 UNI GY -150
    8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 UNI GY -300
    UNIT MMS NEWTON
    LOAD 7 LOADTYPE Wind TITLE W+X+
    UNIT FEET POUND
    MEMBER LOAD
    1 31 UNI GX 65
    2 5 32 35 UNI GY 180
    4 6 34 36 UNI GY 102
    3 33 UNI GX 88
    7 13 19 25 UNI GX 61
    8 11 14 17 20 23 26 29 UNI GY 236
    10 12 16 18 22 24 28 30 UNI GY 151
    9 15 21 27 UNI GX 129
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 8 LOADTYPE Wind TITLE W+X-
    UNIT FEET POUND
    MEMBER LOAD
    1 31 UNI GX -88
    2 5 32 35 UNI GY 102
    4 6 34 36 UNI GY 180
    3 33 UNI GX -65
    7 13 19 25 UNI GX -129
    8 11 14 17 20 23 26 29 UNI GY 151
    10 12 16 18 22 24 28 30 UNI GY 236
    9 15 21 27 UNI GX -61
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 9 LOADTYPE Wind TITLE W-X+
    UNIT FEET POUND
    MEMBER LOAD
    1 31 UNI GX 114
    2 5 32 35 UNI GY 131
    4 6 34 36 UNI GY 53
    3 33 UNI GX 39
    7 13 19 25 UNI GX 159
    8 11 14 17 20 23 26 29 UNI GY 138
    10 12 16 18 22 24 28 30 UNI GY 53
    9 15 21 27 UNI GX 32
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 10 LOADTYPE Wind TITLE W-X-
    UNIT FEET POUND
    MEMBER LOAD
    1 31 UNI GX -39
    2 5 32 35 UNI GY 53
    4 6 34 36 UNI GY 131
    3 33 UNI GX -114
    7 13 19 25 UNI GX -32
    8 11 14 17 20 23 26 29 UNI GY 53
    10 12 16 18 22 24 28 30 UNI GY 138
    9 15 21 27 UNI GX -159
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 11 LOADTYPE Wind TITLE W+Z+
    UNIT FEET POUND
    MEMBER LOAD
    1 3 UNI GZ 35.53
    76 77 80 UNI GZ 45
    2 4 TO 6 UNI GY 118
    8 10 TO 12 14 16 TO 18 UNI GY 236
    20 22 TO 24 26 28 TO 30 UNI GY 149
    32 34 TO 36 UNI GY 75
    31 33 UNI GZ 50
    78 79 81 UNI GZ 96
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 12 LOADTYPE Wind TITLE W+Z-
    UNIT FEET POUND
    MEMBER LOAD
    1 3 UNI GZ -50
    76 77 80 UNI GZ -96
    2 4 TO 6 UNI GY 75
    8 10 TO 12 14 16 TO 18 UNI GY 149
    20 22 TO 24 26 28 TO 30 UNI GY 236
    32 34 TO 36 UNI GY 118
    78 79 81 UNI GZ -45
    31 33 UNI GZ -35.53
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 13 LOADTYPE Wind TITLE W-Z+
    UNIT FEET POUND
    MEMBER LOAD
    1 3 UNI GZ 65
    76 77 80 UNI GZ 118
    2 4 TO 6 UNI GY 69
    8 10 TO 12 14 16 TO 18 UNI GY 138
    20 22 TO 24 26 28 TO 30 UNI GY 52
    32 34 TO 36 UNI GY 26
    31 33 UNI GZ 21
    78 79 81 UNI GZ 23
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 14 LOADTYPE Wind TITLE W-Z-
    UNIT FEET POUND
    MEMBER LOAD
    76 77 80 UNI GZ -23
    1 3 UNI GZ -21
    2 4 TO 6 UNI GY 26
    8 10 TO 12 14 16 TO 18 UNI GY 52
    20 22 TO 24 26 28 TO 30 UNI GY 138
    32 34 TO 36 UNI GY 69
    78 79 81 UNI GZ -118
    31 33 UNI GZ -65
    PERFORM CABLE ANALYSIS
    LOAD COMB 15 DL+RL
    5 1.0 6 1.0
    LOAD COMB 16 DL+0.75RL
    5 1.0 6 0.75
    LOAD COMB 17 DL+0.71EX+
    5 1.0 1 0.71
    LOAD COMB 18 DL+0.71EX-
    5 1.0 2 0.71
    LOAD COMB 19 DL+0.71EZ+
    5 1.0 3 0.71
    LOAD COMB 20 DL+0.71EZ-
    5 1.0 4 0.71
    LOAD COMB 21 DL+W+X+
    5 1.0 7 1.0
    LOAD COMB 22 DL+W+X-
    5 1.0 8 1.0
    LOAD COMB 23 DL+W-X+
    5 1.0 9 1.0
    LOAD COMB 24 DL+W-X-
    5 1.0 10 1.0
    LOAD COMB 25 0.6DL+W+X+
    5 0.6 7 1.0
    LOAD COMB 26 0.6DL+W+X-
    5 0.6 8 1.0
    LOAD COMB 27 0.6DL+W-X+
    5 0.6 9 1.0
    LOAD COMB 28 0.6DL+W-X-
    5 0.6 10 1.0
    LOAD COMB 29 DL+W+Z+
    5 1.0 11 1.0
    LOAD COMB 30 DL+W+Z-
    5 1.0 12 1.0
    LOAD COMB 31 DL+W-Z+
    5 1.0 13 1.0
    LOAD COMB 32 DL+W-Z-
    5 1.0 14 1.0
    LOAD COMB 33 0.6DL+W+Z+
    5 0.6 11 1.0
    LOAD COMB 34 0.6DL+W+Z-
    5 0.6 12 1.0
    LOAD COMB 35 0.6DL+W-Z+
    5 0.6 13 1.0
    LOAD COMB 36 0.6DL+W-Z-
    5 0.6 14 1.0
    LOAD COMB 37 DL+EX+
    5 1.0 1 1.0
    LOAD COMB 38 DL+EX-
    5 1.0 2 1.0
    LOAD COMB 39 DL+EZ+
    5 1.0 3 1.0
    LOAD COMB 40 DL+EZ-
    5 1.0 4 1.0
    LOAD COMB 41 DL+0.75RL+0.75W+X+
    5 1.0 6 0.75 7 0.75
    LOAD COMB 42 DL+0.75RL+0.75W+X-
    5 1.0 6 0.75 8 0.75
    LOAD COMB 43 DL+0.75RL+0.75W-X+
    5 1.0 6 0.75 9 0.75
    LOAD COMB 44 DL+0.75RL+0.75W-X-
    5 1.0 6 0.75 10 0.75
    LOAD COMB 45 DL+0.75RL+0.75W+Z+
    5 1.0 6 0.75 11 0.75
    LOAD COMB 46 DL+0.75RL+0.75W+Z-
    5 1.0 6 0.75 12 0.75
    LOAD COMB 47 DL+0.75RL+0.75W-Z+
    5 1.0 6 0.75 13 0.75
    LOAD COMB 48 DL+0.75RL+0.75W-Z-
    5 1.0 6 0.75 14 0.75
    LOAD COMB 49 DL+0.75RL+0.5357EX+
    5 1.0 6 0.75 1 0.5357
    LOAD COMB 50 DL+0.75RL+0.5357EX-
    5 1.0 6 0.75 2 0.5357
    LOAD COMB 51 DL+0.75RL+0.5357EZ+
    5 1.0 6 0.75 3 0.5357
    LOAD COMB 52 DL+0.75RL+0.5357EZ-
    5 1.0 6 0.75 4 0.5357
    UNIT MMS NEWTON
    PERFORM ANALYSIS
    PARAMETER 1
    CODE AISC
    BEAM 1 MEMB 1 TO 36 76 TO 81
    FU 413.684 MEMB 37 TO 75 82 TO 91
    FYLD 248.21 MEMB 37 TO 75 82 TO 91
    FU 448 MEMB 1 TO 36 76 TO 81
    FYLD 345 MEMB 1 TO 36 76 TO 81
    LZ 1200 MEMB 2 4 TO 6 8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 32 34 -
    35 TO 36
    LY 1200 MEMB 1 3 7 9 13 15 19 21 25 27 31 33 76 TO 81
    STP 2 MEMB 1 TO 36 76 TO 81
    TAPER 1 MEMB 1 TO 36 76 TO 81
    TRACK 2 ALL
    UNB 1200 MEMB 2 4 TO 6 8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 32 34 -
    35 TO 36
    UNT 1200 MEMB 1 TO 36 76 TO 81
    CHECK CODE ALL
    PARAMETER 2
    CODE AISC
    STEEL MEMBER TAKE OFF ALL
    PARAMETER 3
    CODE AISC
    STEEL TAKE OFF ALL
    PERFORM ANALYSIS
    FINISH
Reply
  • STAAD SPACE
    START JOB INFORMATION
    ENGINEER DATE 13-Aug-16
    END JOB INFORMATION
    INPUT WIDTH 79
    UNIT FEET KIP
    JOINT COORDINATES
    1 0 0 0; 2 0 25 0; 3 37.5 28.75 0; 4 75 0 0; 5 75 25 0; 6 18.75 26.875 0;
    7 56.25 26.875 0; 8 0 0 25; 9 0 25 25; 10 37.5 28.75 25; 11 75 0 25;
    12 75 25 25; 13 18.75 26.875 25; 14 56.25 26.875 25; 15 0 0 50; 16 0 25 50;
    17 37.5 28.75 50; 18 75 0 50; 19 75 25 50; 20 18.75 26.875 50;
    21 56.25 26.875 50; 22 0 0 75; 23 0 25 75; 24 37.5 28.75 75; 25 75 0 75;
    26 75 25 75; 27 18.75 26.875 75; 28 56.25 26.875 75; 29 0 0 100; 30 0 25 100;
    31 37.5 28.75 100; 32 75 0 100; 33 75 25 100; 34 18.75 26.875 100;
    35 56.25 26.875 100; 36 0 0 125; 37 0 25 125; 38 37.5 28.75 125; 39 75 0 125;
    40 75 25 125; 41 18.75 26.875 125; 42 56.25 26.875 125; 43 18.75 0 0;
    44 56.25 0 0; 45 18.75 0 125; 46 56.25 0 125; 47 37.5 0 0; 48 37.5 0 125;
    MEMBER INCIDENCES
    1 1 2; 2 2 6; 3 4 5; 4 5 7; 5 6 3; 6 7 3; 7 8 9; 8 9 13; 9 11 12; 10 12 14;
    11 13 10; 12 14 10; 13 15 16; 14 16 20; 15 18 19; 16 19 21; 17 20 17; 18 21 17;
    19 22 23; 20 23 27; 21 25 26; 22 26 28; 23 27 24; 24 28 24; 25 29 30; 26 30 34;
    27 32 33; 28 33 35; 29 34 31; 30 35 31; 31 36 37; 32 37 41; 33 39 40; 34 40 42;
    35 41 38; 36 42 38; 37 30 27; 38 23 34; 39 34 24; 40 27 31; 41 33 28; 42 26 35;
    43 35 24; 44 28 31; 45 30 22; 46 23 29; 47 16 13; 48 9 20; 49 20 10; 50 13 17;
    51 19 14; 52 12 21; 53 21 10; 54 14 17; 55 16 8; 56 9 15; 57 19 11; 58 12 18;
    59 2 9; 60 9 16; 61 16 23; 62 23 30; 63 30 37; 64 5 12; 65 12 19; 66 19 26;
    67 26 33; 68 33 40; 69 3 10; 70 10 17; 71 17 24; 72 24 31; 73 31 38; 74 26 32;
    75 25 33; 76 6 43; 77 7 44; 78 41 45; 79 42 46; 80 3 47; 81 38 48; 82 41 34;
    83 34 27; 84 27 20; 85 20 13; 86 13 6; 87 7 14; 88 14 21; 89 21 28; 90 28 35;
    91 35 42;
    START GROUP DEFINITION
    MEMBER
    _INNER-RFT 8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30
    _OUTR-RFT 2 4 TO 6 32 34 TO 36
    _OUTR-COL 1 3 31 33
    _INNR-COL 7 9 13 15 19 21 25 27
    _BRACING 37 TO 58 74 75
    _PIPE 59 TO 73 82 TO 91
    _WIND-COL 76 TO 81
    _RAFTERS 2 4 TO 6 8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 32 34 TO 36
    _COLUMNS 1 3 7 9 13 15 19 21 25 27 31 33 76 TO 81
    JOINT
    END GROUP DEFINITION
    START USER TABLE
    TABLE 1
    UNIT FEET POUND
    WIDE FLANGE
    W200-6-F100-8
    0.0301391 0.708661 0.019685 0.328084 0.026247 0.00246951 0.000154901 -
    5.62327e-006 0.01395 0.0114816 0.328084 0.026247
    END
    UNIT FEET KIP
    DEFINE MATERIAL START
    ISOTROPIC STEEL
    E 4.176e+006
    POISSON 0.3
    DENSITY 0.489024
    ALPHA 6e-006
    DAMP 0.03
    TYPE STEEL
    STRENGTH FY 5184 FU 8352 RY 1.5 RT 1.2
    G 1.60615e+006
    ISOTROPIC ASTM_A572_GR.50
    E 4.176e+006
    POISSON 0.3
    DENSITY 0.489024
    ALPHA 6e-006
    DAMP 0.003
    TYPE STEEL
    STRENGTH FY 7199.99 FU 9359.99 RY 1.1 RT 1.1
    END DEFINE MATERIAL
    MEMBER PROPERTY AMERICAN
    37 TO 58 74 75 PRIS YD 0.03937
    1 3 7 9 13 15 19 21 25 27 31 -
    33 TAPERED 1.02362 0.0131233 2.82808 0.59055 0.019685 0.59055 0.019685
    2 4 8 10 14 16 20 22 26 28 32 -
    34 TAPERED 2.82808 0.0131233 2.17191 0.59055 0.019685 0.59055 0.019685
    5 6 11 12 17 18 23 24 29 30 35 -
    36 TAPERED 2.17191 0.0131233 1.51575 0.59055 0.019685 0.59055 0.019685
    UNIT MMS NEWTON
    MEMBER PROPERTY AMERICAN
    59 TO 73 82 TO 91 TABLE ST PIPE OD 100 ID 90
    UNIT FEET POUND
    MEMBER PROPERTY COLDFORMED AMERICAN
    76 TO 81 UPTABLE 1 W200-6-F100-8
    UNIT FEET KIP
    CONSTANTS
    BETA 90 MEMB 76 TO 81
    MATERIAL STEEL MEMB 37 TO 75 82 TO 91
    MATERIAL ASTM_A572_GR.50 MEMB 1 TO 36 76 TO 81
    SUPPORTS
    1 4 8 11 15 18 22 25 29 32 36 39 43 TO 48 PINNED
    UNIT MMS NEWTON
    MEMBER RELEASE
    59 TO 73 76 TO 91 START MY MZ
    59 TO 73 82 TO 91 END MY MZ
    UNIT FEET POUND
    MEMBER CABLE
    37 TO 58 74 75 LENGTH 0
    UNIT MMS NEWTON
    DEFINE UBC LOAD
    ZONE 0.15 I 1 RWX 4.5 RWZ 3.5 STYP 4 CT 0.028 NA 1 NV 1
    SELFWEIGHT 1
    LOAD 1 LOADTYPE Seismic TITLE EX+
    SELFWEIGHT X 1
    LOAD 2 LOADTYPE Seismic TITLE EX-
    SELFWEIGHT X -1
    LOAD 3 LOADTYPE Seismic TITLE EZ+
    SELFWEIGHT Z 1
    LOAD 4 LOADTYPE Seismic TITLE EZ-
    SELFWEIGHT Z -1
    LOAD 5 LOADTYPE Dead TITLE DL
    UNIT FEET POUND
    MEMBER LOAD
    2 4 TO 6 32 34 TO 36 UNI GY -63
    8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 UNI GY -125
    SELFWEIGHT Y -1
    UNIT MMS NEWTON
    LOAD 6 LOADTYPE Dead TITLE RL
    UNIT FEET POUND
    MEMBER LOAD
    2 4 TO 6 32 34 TO 36 UNI GY -150
    8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 UNI GY -300
    UNIT MMS NEWTON
    LOAD 7 LOADTYPE Wind TITLE W+X+
    UNIT FEET POUND
    MEMBER LOAD
    1 31 UNI GX 65
    2 5 32 35 UNI GY 180
    4 6 34 36 UNI GY 102
    3 33 UNI GX 88
    7 13 19 25 UNI GX 61
    8 11 14 17 20 23 26 29 UNI GY 236
    10 12 16 18 22 24 28 30 UNI GY 151
    9 15 21 27 UNI GX 129
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 8 LOADTYPE Wind TITLE W+X-
    UNIT FEET POUND
    MEMBER LOAD
    1 31 UNI GX -88
    2 5 32 35 UNI GY 102
    4 6 34 36 UNI GY 180
    3 33 UNI GX -65
    7 13 19 25 UNI GX -129
    8 11 14 17 20 23 26 29 UNI GY 151
    10 12 16 18 22 24 28 30 UNI GY 236
    9 15 21 27 UNI GX -61
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 9 LOADTYPE Wind TITLE W-X+
    UNIT FEET POUND
    MEMBER LOAD
    1 31 UNI GX 114
    2 5 32 35 UNI GY 131
    4 6 34 36 UNI GY 53
    3 33 UNI GX 39
    7 13 19 25 UNI GX 159
    8 11 14 17 20 23 26 29 UNI GY 138
    10 12 16 18 22 24 28 30 UNI GY 53
    9 15 21 27 UNI GX 32
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 10 LOADTYPE Wind TITLE W-X-
    UNIT FEET POUND
    MEMBER LOAD
    1 31 UNI GX -39
    2 5 32 35 UNI GY 53
    4 6 34 36 UNI GY 131
    3 33 UNI GX -114
    7 13 19 25 UNI GX -32
    8 11 14 17 20 23 26 29 UNI GY 53
    10 12 16 18 22 24 28 30 UNI GY 138
    9 15 21 27 UNI GX -159
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 11 LOADTYPE Wind TITLE W+Z+
    UNIT FEET POUND
    MEMBER LOAD
    1 3 UNI GZ 35.53
    76 77 80 UNI GZ 45
    2 4 TO 6 UNI GY 118
    8 10 TO 12 14 16 TO 18 UNI GY 236
    20 22 TO 24 26 28 TO 30 UNI GY 149
    32 34 TO 36 UNI GY 75
    31 33 UNI GZ 50
    78 79 81 UNI GZ 96
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 12 LOADTYPE Wind TITLE W+Z-
    UNIT FEET POUND
    MEMBER LOAD
    1 3 UNI GZ -50
    76 77 80 UNI GZ -96
    2 4 TO 6 UNI GY 75
    8 10 TO 12 14 16 TO 18 UNI GY 149
    20 22 TO 24 26 28 TO 30 UNI GY 236
    32 34 TO 36 UNI GY 118
    78 79 81 UNI GZ -45
    31 33 UNI GZ -35.53
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 13 LOADTYPE Wind TITLE W-Z+
    UNIT FEET POUND
    MEMBER LOAD
    1 3 UNI GZ 65
    76 77 80 UNI GZ 118
    2 4 TO 6 UNI GY 69
    8 10 TO 12 14 16 TO 18 UNI GY 138
    20 22 TO 24 26 28 TO 30 UNI GY 52
    32 34 TO 36 UNI GY 26
    31 33 UNI GZ 21
    78 79 81 UNI GZ 23
    PERFORM CABLE ANALYSIS
    UNIT MMS NEWTON
    LOAD 14 LOADTYPE Wind TITLE W-Z-
    UNIT FEET POUND
    MEMBER LOAD
    76 77 80 UNI GZ -23
    1 3 UNI GZ -21
    2 4 TO 6 UNI GY 26
    8 10 TO 12 14 16 TO 18 UNI GY 52
    20 22 TO 24 26 28 TO 30 UNI GY 138
    32 34 TO 36 UNI GY 69
    78 79 81 UNI GZ -118
    31 33 UNI GZ -65
    PERFORM CABLE ANALYSIS
    LOAD COMB 15 DL+RL
    5 1.0 6 1.0
    LOAD COMB 16 DL+0.75RL
    5 1.0 6 0.75
    LOAD COMB 17 DL+0.71EX+
    5 1.0 1 0.71
    LOAD COMB 18 DL+0.71EX-
    5 1.0 2 0.71
    LOAD COMB 19 DL+0.71EZ+
    5 1.0 3 0.71
    LOAD COMB 20 DL+0.71EZ-
    5 1.0 4 0.71
    LOAD COMB 21 DL+W+X+
    5 1.0 7 1.0
    LOAD COMB 22 DL+W+X-
    5 1.0 8 1.0
    LOAD COMB 23 DL+W-X+
    5 1.0 9 1.0
    LOAD COMB 24 DL+W-X-
    5 1.0 10 1.0
    LOAD COMB 25 0.6DL+W+X+
    5 0.6 7 1.0
    LOAD COMB 26 0.6DL+W+X-
    5 0.6 8 1.0
    LOAD COMB 27 0.6DL+W-X+
    5 0.6 9 1.0
    LOAD COMB 28 0.6DL+W-X-
    5 0.6 10 1.0
    LOAD COMB 29 DL+W+Z+
    5 1.0 11 1.0
    LOAD COMB 30 DL+W+Z-
    5 1.0 12 1.0
    LOAD COMB 31 DL+W-Z+
    5 1.0 13 1.0
    LOAD COMB 32 DL+W-Z-
    5 1.0 14 1.0
    LOAD COMB 33 0.6DL+W+Z+
    5 0.6 11 1.0
    LOAD COMB 34 0.6DL+W+Z-
    5 0.6 12 1.0
    LOAD COMB 35 0.6DL+W-Z+
    5 0.6 13 1.0
    LOAD COMB 36 0.6DL+W-Z-
    5 0.6 14 1.0
    LOAD COMB 37 DL+EX+
    5 1.0 1 1.0
    LOAD COMB 38 DL+EX-
    5 1.0 2 1.0
    LOAD COMB 39 DL+EZ+
    5 1.0 3 1.0
    LOAD COMB 40 DL+EZ-
    5 1.0 4 1.0
    LOAD COMB 41 DL+0.75RL+0.75W+X+
    5 1.0 6 0.75 7 0.75
    LOAD COMB 42 DL+0.75RL+0.75W+X-
    5 1.0 6 0.75 8 0.75
    LOAD COMB 43 DL+0.75RL+0.75W-X+
    5 1.0 6 0.75 9 0.75
    LOAD COMB 44 DL+0.75RL+0.75W-X-
    5 1.0 6 0.75 10 0.75
    LOAD COMB 45 DL+0.75RL+0.75W+Z+
    5 1.0 6 0.75 11 0.75
    LOAD COMB 46 DL+0.75RL+0.75W+Z-
    5 1.0 6 0.75 12 0.75
    LOAD COMB 47 DL+0.75RL+0.75W-Z+
    5 1.0 6 0.75 13 0.75
    LOAD COMB 48 DL+0.75RL+0.75W-Z-
    5 1.0 6 0.75 14 0.75
    LOAD COMB 49 DL+0.75RL+0.5357EX+
    5 1.0 6 0.75 1 0.5357
    LOAD COMB 50 DL+0.75RL+0.5357EX-
    5 1.0 6 0.75 2 0.5357
    LOAD COMB 51 DL+0.75RL+0.5357EZ+
    5 1.0 6 0.75 3 0.5357
    LOAD COMB 52 DL+0.75RL+0.5357EZ-
    5 1.0 6 0.75 4 0.5357
    UNIT MMS NEWTON
    PERFORM ANALYSIS
    PARAMETER 1
    CODE AISC
    BEAM 1 MEMB 1 TO 36 76 TO 81
    FU 413.684 MEMB 37 TO 75 82 TO 91
    FYLD 248.21 MEMB 37 TO 75 82 TO 91
    FU 448 MEMB 1 TO 36 76 TO 81
    FYLD 345 MEMB 1 TO 36 76 TO 81
    LZ 1200 MEMB 2 4 TO 6 8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 32 34 -
    35 TO 36
    LY 1200 MEMB 1 3 7 9 13 15 19 21 25 27 31 33 76 TO 81
    STP 2 MEMB 1 TO 36 76 TO 81
    TAPER 1 MEMB 1 TO 36 76 TO 81
    TRACK 2 ALL
    UNB 1200 MEMB 2 4 TO 6 8 10 TO 12 14 16 TO 18 20 22 TO 24 26 28 TO 30 32 34 -
    35 TO 36
    UNT 1200 MEMB 1 TO 36 76 TO 81
    CHECK CODE ALL
    PARAMETER 2
    CODE AISC
    STEEL MEMBER TAKE OFF ALL
    PARAMETER 3
    CODE AISC
    STEEL TAKE OFF ALL
    PERFORM ANALYSIS
    FINISH
Children
  • You were attempting to do a Nonlinear Cable Analysis but there was no pretension load defined which is essential. I added a pretension of 10KN ( you may change as needed). The bigger question is whether the nonlinear cable analysis is required or not. Are these members that you assigned as cables, really cable members or are these rods ? If these are rods you may as well model these as TRUSS. Also when you are using a nonlinear cable analysis, each load case has to be a complete case by itself with selfweight and all components. You should not do a cable analysis with just the wind load ( for example load case 7 to 14 ). Also if you go with a nonlinear cable analysis, your load combinations should be replaced by REPEAT LOADs. These can be very easily handled through the command editor as explained for the load case 15 below

    LOAD COMBINATION :

    LOAD COMB 15 DL+RL

    5 1.0 6 1.0

     

    REPEAT LOAD :

    LOAD 15 DL+RL

    REPEAT LOAD

    5 1.0 6 1.0

    A partly modified file is attached for your reference. Hop this will give you some direction.

    2068.Structure1.std



  • But how can i define pure cable instead of defining rod. i couldn't find any option of defining cable. Can i define rod and assigning it as tension member to get the effect of cable.
  • There are few in-build standard cable sections already added in Staad section database. You need to configure the section profile table for this.
    Please see the link below.

    communities.bentley.com/.../366848

    However, I don't see any much of difference if you use the rod section (instead of standard cable section) and assign them as "Tension Only" member . The behavior of this section is same as the cable section which is supposed to only handle the tension.