06-18-2010, 05:57 AM
Dear Friends,
Attaching the Staad file... i really poor at staad but with help from this great forum i will learn...the fundamental frequency from code based procedure shows significant diff from staad...
STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 10-Jun-10
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 -1.6 0; 2 0 0 0; 3 0 2 0; 4 0 4 0; 5 0 5 0; 6 0 10 0; 7 0 15 0; 8 0 20 0;
9 0 30 0; 10 0 40 0; 11 0 50 0; 12 0 60 0; 13 0 70 0; 14 0 80 0; 15 0 90 0;
16 0 100 0; 17 0 110 0; 18 0 120 0; 19 0 130 0; 20 0 140 0; 21 0 150 0;
22 0 160 0; 23 0 170 0; 24 0 180 0; 25 0 190 0; 26 0 200 0; 27 0 210 0;
28 0 220 0;
MEMBER INCIDENCES
1 1 2; 2 2 3; 3 3 4; 4 4 5; 5 5 6; 6 6 7; 7 7 8; 8 8 9; 9 9 10; 10 10 11;
11 11 12; 12 12 13; 13 13 14; 14 14 15; 15 15 16; 16 16 17; 17 17 18; 18 18 19;
19 19 20; 20 20 21; 21 21 22; 22 22 23; 23 23 24; 24 24 25; 25 25 26; 26 26 27;
27 27 28;
MEMBER PROPERTY AMERICAN
27 PRIS AX 17.33 IZ 412.95
26 PRIS AX 17.33 IZ 412.95
25 PRIS AX 17.33 IZ 412.95
24 PRIS AX 17.33 IZ 412.95
23 PRIS AX 17.33 IZ 412.95
22 PRIS AX 17.33 IZ 412.95
21 PRIS AX 17.33 IZ 412.95
20 PRIS AX 17.33 IZ 412.95
19 PRIS AX 18.94 IZ 486.57
18 PRIS AX 20.62 IZ 569.54
17 PRIS AX 22.69 IZ 691.45
16 PRIS AX 24.27 IZ 752.1
15 PRIS AX 26.43 IZ 960.08
14 PRIS AX 27.41 IZ 989.63
13 PRIS AX 29.32 IZ 1125.51
12 PRIS AX 31.17 IZ 1270.68
11 PRIS AX 33.54 IZ 1447.8
10 PRIS AX 35.98 IZ 1642.55
9 PRIS AX 39.49 IZ 1901.92
8 PRIS AX 41.39 IZ 2104.2
7 PRIS AX 42.7 IZ 2227.81
6 PRIS AX 43.4 IZ 2347.32
5 PRIS AX 45.85 IZ 2606.36
4 PRIS AX 45.99 IZ 2613.93
3 PRIS AX 46.13 IZ 2621.5
2 PRIS AX 46.56 IZ 2644.21
1 PRIS AX 46.82 IZ 2657.94
DEFINE MATERIAL START
ISOTROPIC MATERIAL1
E 3.5e+007
POISSON 0.2
ISOTROPIC MATERIAL2
E 3.35e+007
POISSON 0.2
ISOTROPIC MATERIAL3
E 3.2e+007
POISSON 0.2
ISOTROPIC CONCRETE
E 2.17185e+007
POISSON 0.17
DENSITY 23.5616
ALPHA 1e-005
DAMP 0.05
END DEFINE MATERIAL
CONSTANTS
MATERIAL MATERIAL1 MEMB 1 TO 7
MATERIAL MATERIAL2 MEMB 8 TO 13
MATERIAL MATERIAL3 MEMB 14 TO 26
MATERIAL CONCRETE MEMB 27
CUT OFF MODE SHAPE 30
SUPPORTS
1 FIXED
LOAD 1 LOADTYPE None TITLE DL
SELFWEIGHT Y -1 LIST 1 TO 27
CALCULATE RAYLEIGH FREQUENCY
LOAD 2
JOINT LOAD
*1 FX 7
2 FX 21.36
3 FX 28.97
4 FX 22
5 FX 44.47
6 FX 77.1
7 FX 83.8
8 FX 141
9 FX 204
10 FX 223
11 FX 240.92
12 FX 258
13 FX 270
14 FX 278.5
15 FX 285.6
16 FX 293.51
17 FX 305.2
18 FX 314.3
19 FX 319
20 FX 326.3
21 FX 339
22 FX 355
23 FX 370
24 FX 381
25 FX 393
26 FX 406.01
27 FX 420.6
28 FX 214.1
MODAL CALCULATION REQUESTED
SPECTRUM SRSS X 0.15 ACC SCALE 9.81 DAMP 0.05
0 0.12; 0.04 0.12; 0.08 0.12; 0.12 0.175; 0.16 0.175; 0.2 0.175; 0.3 0.175;
0.4 0.175; 0.5 0.175; 0.6 0.175; 0.8 0.146; 1 0.117; 1.2 0.097; 1.4 0.059;
1.6 0.073; 1.8 0.065; 2 0.058; 2.3 0.05; 2.6 0.045; 2.8 0.041; 3 0.039;
PERFORM ANALYSIS
FINISH
Attaching the Staad file... i really poor at staad but with help from this great forum i will learn...the fundamental frequency from code based procedure shows significant diff from staad...
STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 10-Jun-10
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 -1.6 0; 2 0 0 0; 3 0 2 0; 4 0 4 0; 5 0 5 0; 6 0 10 0; 7 0 15 0; 8 0 20 0;
9 0 30 0; 10 0 40 0; 11 0 50 0; 12 0 60 0; 13 0 70 0; 14 0 80 0; 15 0 90 0;
16 0 100 0; 17 0 110 0; 18 0 120 0; 19 0 130 0; 20 0 140 0; 21 0 150 0;
22 0 160 0; 23 0 170 0; 24 0 180 0; 25 0 190 0; 26 0 200 0; 27 0 210 0;
28 0 220 0;
MEMBER INCIDENCES
1 1 2; 2 2 3; 3 3 4; 4 4 5; 5 5 6; 6 6 7; 7 7 8; 8 8 9; 9 9 10; 10 10 11;
11 11 12; 12 12 13; 13 13 14; 14 14 15; 15 15 16; 16 16 17; 17 17 18; 18 18 19;
19 19 20; 20 20 21; 21 21 22; 22 22 23; 23 23 24; 24 24 25; 25 25 26; 26 26 27;
27 27 28;
MEMBER PROPERTY AMERICAN
27 PRIS AX 17.33 IZ 412.95
26 PRIS AX 17.33 IZ 412.95
25 PRIS AX 17.33 IZ 412.95
24 PRIS AX 17.33 IZ 412.95
23 PRIS AX 17.33 IZ 412.95
22 PRIS AX 17.33 IZ 412.95
21 PRIS AX 17.33 IZ 412.95
20 PRIS AX 17.33 IZ 412.95
19 PRIS AX 18.94 IZ 486.57
18 PRIS AX 20.62 IZ 569.54
17 PRIS AX 22.69 IZ 691.45
16 PRIS AX 24.27 IZ 752.1
15 PRIS AX 26.43 IZ 960.08
14 PRIS AX 27.41 IZ 989.63
13 PRIS AX 29.32 IZ 1125.51
12 PRIS AX 31.17 IZ 1270.68
11 PRIS AX 33.54 IZ 1447.8
10 PRIS AX 35.98 IZ 1642.55
9 PRIS AX 39.49 IZ 1901.92
8 PRIS AX 41.39 IZ 2104.2
7 PRIS AX 42.7 IZ 2227.81
6 PRIS AX 43.4 IZ 2347.32
5 PRIS AX 45.85 IZ 2606.36
4 PRIS AX 45.99 IZ 2613.93
3 PRIS AX 46.13 IZ 2621.5
2 PRIS AX 46.56 IZ 2644.21
1 PRIS AX 46.82 IZ 2657.94
DEFINE MATERIAL START
ISOTROPIC MATERIAL1
E 3.5e+007
POISSON 0.2
ISOTROPIC MATERIAL2
E 3.35e+007
POISSON 0.2
ISOTROPIC MATERIAL3
E 3.2e+007
POISSON 0.2
ISOTROPIC CONCRETE
E 2.17185e+007
POISSON 0.17
DENSITY 23.5616
ALPHA 1e-005
DAMP 0.05
END DEFINE MATERIAL
CONSTANTS
MATERIAL MATERIAL1 MEMB 1 TO 7
MATERIAL MATERIAL2 MEMB 8 TO 13
MATERIAL MATERIAL3 MEMB 14 TO 26
MATERIAL CONCRETE MEMB 27
CUT OFF MODE SHAPE 30
SUPPORTS
1 FIXED
LOAD 1 LOADTYPE None TITLE DL
SELFWEIGHT Y -1 LIST 1 TO 27
CALCULATE RAYLEIGH FREQUENCY
LOAD 2
JOINT LOAD
*1 FX 7
2 FX 21.36
3 FX 28.97
4 FX 22
5 FX 44.47
6 FX 77.1
7 FX 83.8
8 FX 141
9 FX 204
10 FX 223
11 FX 240.92
12 FX 258
13 FX 270
14 FX 278.5
15 FX 285.6
16 FX 293.51
17 FX 305.2
18 FX 314.3
19 FX 319
20 FX 326.3
21 FX 339
22 FX 355
23 FX 370
24 FX 381
25 FX 393
26 FX 406.01
27 FX 420.6
28 FX 214.1
MODAL CALCULATION REQUESTED
SPECTRUM SRSS X 0.15 ACC SCALE 9.81 DAMP 0.05
0 0.12; 0.04 0.12; 0.08 0.12; 0.12 0.175; 0.16 0.175; 0.2 0.175; 0.3 0.175;
0.4 0.175; 0.5 0.175; 0.6 0.175; 0.8 0.146; 1 0.117; 1.2 0.097; 1.4 0.059;
1.6 0.073; 1.8 0.065; 2 0.058; 2.3 0.05; 2.6 0.045; 2.8 0.041; 3 0.039;
PERFORM ANALYSIS
FINISH