I am currently modelling an existing structure that has both shear walls and columns (not boundary elements) without beams (flat slab). How best can this system be modeled in Staad, taking into consideration the distribution of gravity and lateral loads on both structural systems?
(NB: The staad editor description is as follows)
STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 27-Jan-16
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 0 0; 2 6.98 0 0; 3 13.96 0 0; 4 20.94 0 0; 5 27.92 0 0; 6 34.9 0 0;
7 41.88 0 0; 8 41.88 0 6.94; 9 34.9 0 6.94; 10 27.92 0 6.94; 11 20.94 0 6.94;
12 13.96 0 6.94; 13 6.98 0 6.94; 14 0 0 6.94; 15 0 0 -1.7; 16 6.98 0 -1.7;
17 13.96 0 -1.7; 18 20.94 0 -1.7; 19 27.92 0 -1.7; 20 34.9 0 -1.7;
21 41.88 0 -1.7; 22 -0.56 0 -0.32; 26 3.61 0 -0.32; 27 10.59 0 -0.32;
28 17.57 0 -0.32; 29 24.55 0 -0.32; 30 31.53 0 -0.32; 31 38.51 0 -0.32;
32 -0.56 0 3.47; 34 3.61 0 7.26; 35 10.59 0 7.26; 36 17.57 0 7.26;
37 24.55 0 7.26; 38 31.53 0 7.26; 39 38.51 0 7.26; 40 0 0 9.42; 41 3.55 0 9.42;
42 7.1 0 9.42; 43 10.65 0 9.42; 44 14.2 0 9.42; 45 17.75 0 9.42;
46 21.3 0 9.42; 47 24.85 0 9.42; 48 28.4 0 9.42; 49 31.95 0 9.42;
50 35.5 0 9.42; 51 39.05 0 9.42; 52 41.88 0 9.42; 53 42.48 0 3.47;
55 42.48 0 -0.32; 60 0 4.07 0; 61 6.98 4.07 0; 62 13.96 4.07 0;
63 20.94 4.07 0; 64 27.92 4.07 0; 65 34.9 4.07 0; 66 41.88 4.07 0;
67 41.88 4.07 6.94; 68 34.9 4.07 6.94; 69 27.92 4.07 6.94; 70 20.94 4.07 6.94;
71 13.96 4.07 6.94; 72 6.98 4.07 6.94; 73 0 4.07 6.94; 74 0 4.07 -1.7;
75 6.98 4.07 -1.7; 76 13.96 4.07 -1.7; 77 20.94 4.07 -1.7; 78 27.92 4.07 -1.7;
79 34.9 4.07 -1.7; 80 41.88 4.07 -1.7; 81 -0.56 4.07 -0.32; 84 3.61 4.07 -0.32;
85 10.59 4.07 -0.32; 86 17.57 4.07 -0.32; 87 24.55 4.07 -0.32;
88 31.53 4.07 -0.32; 89 38.51 4.07 -0.32; 90 -0.56 4.07 3.47;
92 3.61 4.07 7.26; 93 10.59 4.07 7.26; 94 17.57 4.07 7.26; 95 24.55 4.07 7.26;
96 31.53 4.07 7.26; 97 38.51 4.07 7.26; 98 0 4.07 9.42; 99 3.55 4.07 9.42;
100 7.1 4.07 9.42; 101 10.65 4.07 9.42; 102 14.2 4.07 9.42;
103 17.75 4.07 9.42; 104 21.3 4.07 9.42; 105 24.85 4.07 9.42;
106 28.4 4.07 9.42; 107 31.95 4.07 9.42; 108 35.5 4.07 9.42;
109 39.05 4.07 9.42; 110 41.88 4.07 9.42; 111 42.48 4.07 3.47;
113 42.48 4.07 -0.32; 118 -0.56 0 7.26; 119 42.48 0 7.26; 120 -0.56 4.07 7.26;
121 42.48 4.07 7.26; 122 -0.56 6.97 -0.32; 123 3.61 6.97 -0.32;
124 10.59 6.97 -0.32; 125 17.57 6.97 -0.32; 126 24.55 6.97 -0.32;
127 31.53 6.97 -0.32; 128 38.51 6.97 -0.32; 129 3.61 6.97 7.26;
130 10.59 6.97 7.26; 131 17.57 6.97 7.26; 132 24.55 6.97 7.26;
133 31.53 6.97 7.26; 134 38.51 6.97 7.26; 135 0 6.97 9.42; 136 3.55 6.97 9.42;
137 7.1 6.97 9.42; 138 10.65 6.97 9.42; 139 14.2 6.97 9.42;
140 17.75 6.97 9.42; 141 21.3 6.97 9.42; 142 24.85 6.97 9.42;
143 28.4 6.97 9.42; 144 31.95 6.97 9.42; 145 35.5 6.97 9.42;
146 39.05 6.97 9.42; 147 41.88 6.97 9.42; 148 42.48 6.97 -0.32;
149 -0.56 6.97 9.42; 150 42.48 6.97 9.42; 151 -0.56 6.97 7.26;
152 42.48 6.97 7.26; 153 -0.56 4.07 9.42; 154 42.48 4.07 9.42;
MEMBER INCIDENCES
407 22 81; 410 26 84; 411 27 85; 412 28 86; 413 29 87; 414 30 88; 415 31 89;
416 32 90; 418 34 92; 419 35 93; 420 36 94; 421 37 95; 422 38 96; 423 39 97;
424 40 98; 425 41 99; 426 42 100; 427 43 101; 428 44 102; 429 45 103;
430 46 104; 431 47 105; 432 48 106; 433 49 107; 434 50 108; 435 51 109;
436 52 110; 437 53 111; 439 55 113; 522 118 120; 523 119 121; 530 81 122;
531 84 123; 532 85 124; 533 86 125; 534 87 126; 535 88 127; 536 89 128;
537 92 129; 538 93 130; 539 94 131; 540 95 132; 541 96 133; 542 97 134;
543 98 135; 544 99 136; 545 100 137; 546 101 138; 547 102 139; 548 103 140;
549 104 141; 550 105 142; 551 106 143; 552 107 144; 553 108 145; 554 109 146;
555 110 147; 556 113 148; 559 120 151; 560 121 152;
ELEMENT INCIDENCES SHELL
595 122 123 129 151; 596 123 124 130 129; 597 124 125 131 130;
598 125 126 132 131; 599 126 127 133 132; 600 127 128 134 133;
601 128 148 152 134; 602 151 149 136 129; 603 129 136 138 130;
604 138 140 131 130; 605 131 140 142 132; 606 132 142 144 133;
607 133 144 146 134; 608 134 146 150 152; 609 81 84 92 120; 610 84 85 93 92;
611 85 86 94 93; 612 86 87 95 94; 613 87 88 96 95; 614 88 89 97 96;
615 89 113 121 97; 616 120 153 99 92; 617 92 99 101 93; 618 101 103 94 93;
619 94 103 105 95; 620 95 105 107 96; 621 96 107 109 97; 622 97 109 154 121;
SURFACE INCIDENCE
14 73 60 1 SURFACE 1
60 61 2 1 SURFACE 2
61 62 3 2 SURFACE 3
62 63 4 3 SURFACE 4
63 64 5 4 SURFACE 5
64 65 6 5 SURFACE 6
65 66 7 6 SURFACE 7
14 13 72 73 SURFACE 8
72 13 12 71 SURFACE 9
12 11 70 71 SURFACE 10
11 10 69 70 SURFACE 11
10 69 68 9 SURFACE 12
9 68 67 8 SURFACE 13
8 7 66 67 SURFACE 14
60 74 15 1 SURFACE 15
61 75 16 2 SURFACE 16
3 17 76 62 SURFACE 17
4 18 77 63 SURFACE 18
5 19 78 64 SURFACE 19
6 20 79 65 SURFACE 20
7 21 80 66 SURFACE 21
ELEMENT PROPERTY
595 TO 622 THICKNESS 0.2
DEFINE MATERIAL START
ISOTROPIC CONCRETE
E 2.17185e+007
POISSON 0.17
DENSITY 23.5616
ALPHA 1e-005
DAMP 0.05
TYPE CONCRETE
STRENGTH FCU 27579
END DEFINE MATERIAL
SURFACE PROPERTY
1 TO 21 THICKNESS 0.25
SURFACE CONSTANTS
MATERIAL CONCRETE ALL
MEMBER PROPERTY AMERICAN
407 410 TO 416 418 TO 423 437 439 522 523 530 TO 542 556 559 -
560 PRIS YD 0.38 ZD 0.26
424 TO 436 543 TO 555 PRIS YD 0.1
CONSTANTS
MATERIAL CONCRETE ALL
SUPPORTS
1 TO 22 26 TO 32 34 TO 53 55 118 119 FIXED
MEMBER CRACKED
407 410 TO 416 418 TO 437 439 522 523 530 TO 556 559 -
560 REDUCTION RAX 0.700000 RIX 0.700000 RIY 0.700000 RIZ 0.700000
SLAVE RIGID MASTER 150 JOINT 122 TO 149 151 152
SLAVE RIGID MASTER 154 JOINT 60 TO 81 84 TO 90 92 TO 111 113 120 121 153
DEFINE IBC 2012
SS 0.7 S1 0.2 I 1.5 RX 3 RZ 3 SCLASS 4 CT 0.0466 PX 0.234 PZ 0.234 TL 12 -
FA 1.24 FV 2 K 0.9
SELFWEIGHT 1
ELEMENT WEIGHT
595 TO 622 PRESSURE -1
LOAD 1 LOADTYPE Seismic TITLE EQ +X
IBC LOAD X 1
PDELTA ANALYSIS SMALLDELTA PRINT LOAD DATA
CHANGE
LOAD 2 LOADTYPE Seismic TITLE EQ -X
IBC LOAD X -1
PDELTA ANALYSIS SMALLDELTA PRINT LOAD DATA
CHANGE
LOAD 3 LOADTYPE Seismic TITLE EQ +Z
IBC LOAD Z 1
PDELTA ANALYSIS SMALLDELTA PRINT LOAD DATA
CHANGE
LOAD 4 LOADTYPE Seismic TITLE EQ -Z
IBC LOAD Z -1
PDELTA ANALYSIS SMALLDELTA PRINT LOAD DATA
CHANGE
LOAD 5 LOADTYPE Dead TITLE DEAD LOAD
SELFWEIGHT Y -1
SSELFWT Y -1 ALL
PDELTA ANALYSIS SMALLDELTA PRINT LOAD DATA
CHANGE
LOAD 6 LOADTYPE Dead TITLE LIVE LOAD
ELEMENT LOAD
595 TO 622 PR -1
PDELTA ANALYSIS SMALLDELTA PRINT LOAD DATA
CHANGE
LOAD 7 LOADTYPE None TITLE 1.4 DL
REPEAT LOAD
5 1.4
LOAD 8 LOADTYPE None TITLE 1.2 DL + 1.6 LL
REPEAT LOAD
5 1.2 6 1.6
LOAD 9 LOADTYPE None TITLE 1.2DL + 0.5LL + 1 EQ+X
REPEAT LOAD
1 1.0 5 1.2 6 0.5
LOAD 10 LOADTYPE None TITLE 1.2DL + 0.5LL + 1 EQ-X
REPEAT LOAD
2 1.0 5 1.2 6 0.5
LOAD 11 LOADTYPE None TITLE 1.2DL + 0.5LL + 1 EQ+Z
REPEAT LOAD
3 1.0 5 1.2 6 0.5
LOAD 12 LOADTYPE None TITLE 1.2DL + 0.5LL + 1 EQ-Z
REPEAT LOAD
4 1.0 5 1.2 6 0.5
LOAD 13 LOADTYPE None TITLE 0.9DL + 1 EQ+X
REPEAT LOAD
1 1.0 5 0.9
LOAD 14 LOADTYPE None TITLE 0.9DL + 1 EQ-X
REPEAT LOAD
2 1.0 5 0.9
LOAD 15 LOADTYPE None TITLE 0.9DL + 1 EQ+Z
REPEAT LOAD
3 1.0 5 0.9
LOAD 16 LOADTYPE None TITLE 0.9DL + 1 EQ-Z
REPEAT LOAD
4 1.0 5 0.9
PDELTA 30 ANALYSIS SMALLDELTA
CHANGE
PERFORM ANALYSIS PRINT ALL
FINISH