Hi everyone,
I model a steel structure and designed in staad software both for strength and serviceability criteria, using load list command. I am using IS 800:2007 code.
But whatever the section I assign to main beams that is failing in deflection check, I am not understanding why it is happening.
Please confirm the procedure followed is correct or not?
Please see my input commands below,
STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 20-Feb-17
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 0 0; 2 0 0.305 0; 3 0 2.651 0; 4 0 3.81 0; 5 0 5.181 0; 6 19.964 0 0;
7 19.964 0.305 0; 8 19.964 2.651 0; 9 19.964 3.81 0; 10 19.964 5.181 0;
11 1.143 5.181 0; 12 2.852 5.181 0; 13 5.704 5.181 0; 14 8.556 5.181 0;
15 11.408 5.181 0; 16 14.26 5.181 0; 17 17.112 5.181 0; 18 18.821 5.181 0;
19 0 0 0.915; 20 0 0.305 0.915; 21 0 2.651 0.915; 22 0 3.81 0.915;
23 0 5.181 0.915; 24 19.964 0 0.915; 25 19.964 0.305 0.915;
26 19.964 2.651 0.915; 27 19.964 3.81 0.915; 28 19.964 5.181 0.915;
29 1.143 5.181 0.915; 30 2.852 5.181 0.915; 31 5.704 5.181 0.915;
32 8.556 5.181 0.915; 33 11.408 5.181 0.915; 34 14.26 5.181 0.915;
35 17.112 5.181 0.915; 36 18.821 5.181 0.915;
MEMBER INCIDENCES
1 1 2; 2 2 3; 3 3 4; 4 4 5; 5 6 7; 6 7 8; 7 8 9; 8 9 10; 9 5 11; 10 11 12;
11 12 13; 12 13 14; 13 14 15; 14 15 16; 15 16 17; 16 17 18; 17 18 10; 18 19 20;
19 20 21; 20 21 22; 21 22 23; 22 24 25; 23 25 26; 24 26 27; 25 27 28; 26 23 29;
27 29 30; 28 30 31; 29 31 32; 30 32 33; 31 33 34; 32 34 35; 33 35 36; 34 36 28;
35 23 5; 36 30 12; 37 31 13; 38 32 14; 39 33 15; 40 34 16; 41 35 17; 42 28 10;
43 4 11; 44 9 18; 45 22 29; 46 27 36; 47 21 3; 48 26 8; 49 2 21; 50 20 3;
51 21 5; 52 3 23; 53 7 26; 54 25 8; 55 8 28; 56 26 10;
DEFINE MATERIAL START
ISOTROPIC STEEL
E 2.05e+008
POISSON 0.3
DENSITY 76.8195
ALPHA 1.2e-005
DAMP 0.03
END DEFINE MATERIAL
MEMBER PROPERTY INDIAN
1 TO 8 18 TO 25 TABLE ST ISMB300
9 TO 17 26 TO 34 TABLE ST ISWB600
35 TO 42 TABLE ST ISMB200
49 TO 56 TABLE ST ISA75X75X6
43 TO 48 TABLE LD ISA75X75X6 SP 0.01
CONSTANTS
MATERIAL STEEL ALL
SUPPORTS
1 6 19 24 FIXED
MEMBER OFFSET
43 45 START 0.123571 0 0
43 TO 46 END 0 -0.2286 0
44 46 START -0.123571 0 0
MEMBER RELEASE
35 TO 48 START MY MZ
35 TO 48 END MY MZ
9 26 START MPY 0.99 MPZ 0.99
17 34 END MPY 0.99 MPZ 0.99
MEMBER TRUSS
49 TO 56
LOAD 1 LOADTYPE Dead TITLE DL
SELFWEIGHT Y -1 LIST 1 TO 48
MEMBER LOAD
35 TO 42 CON GY -0.34 0.2032
35 TO 42 CON GY -0.452 0.7112 0
LOAD 2 LOADTYPE Snow TITLE SN
MEMBER LOAD
35 TO 42 UNI GY -0.07 0 0.906
9 TO 17 26 TO 34 UNI GY -0.1
LOAD 3 LOADTYPE Wind TITLE WL X+VE
MEMBER LOAD
1 TO 8 18 TO 25 UNI GX 0.6
LOAD 4 LOADTYPE Wind TITLE WL X-VE
MEMBER LOAD
1 TO 8 18 TO 25 UNI GX -0.6
LOAD 5 LOADTYPE Wind TITLE WL Z+VE
MEMBER LOAD
9 TO 17 UNI GZ 0.953
1 TO 8 UNI GZ 0.5
LOAD 6 LOADTYPE Wind TITLE WL Z-VE
MEMBER LOAD
26 TO 34 UNI GZ -0.953
18 TO 25 UNI GZ -0.5
LOAD COMB 7 1.5(DL+SN)
1 1.5 2 1.5
LOAD COMB 8 1.2(DL+SN+WL X+VE)
1 1.2 2 1.2 3 1.2
LOAD COMB 9 1.2(DL+SN+WL X-VE)
1 1.2 2 1.2 4 -1.2
LOAD COMB 10 1.2(DL+SN+WL Z+VE)
1 1.2 2 1.2 5 1.2
LOAD COMB 11 1.2(DL+SN+WL Z-VE)
1 1.2 2 1.2 6 -1.2
LOAD COMB 12 1.5(DL+WL X+VE)
1 1.5 3 1.5
LOAD COMB 13 1.5(DL+WL X-VE)
1 1.5 4 1.5
LOAD COMB 14 1.5(DL+WL Z+VE)
1 1.5 5 1.5
LOAD COMB 15 1.5(DL+WL Z-VE)
1 1.5 6 -1.5
LOAD COMB 16 1.0 DL+ 0.35 SN
1 1.0 2 0.35
LOAD COMB 17 1(DL+SN)
1 1.0 2 1.0
LOAD COMB 18 1DL+0.8SN+0.8WL X+VE
1 1.0 2 0.8 3 0.8
LOAD COMB 19 1DL+0.8SN-0.8WL X-VE
1 1.0 2 0.8 4 -0.8
LOAD COMB 20 1DL+0.8SN+0.8WL Z+VE
1 1.0 2 0.8 5 0.8
LOAD COMB 21 1DL+0.8SN-0.8WL Z-VE
1 1.0 2 0.8 6 -0.8
LOAD COMB 22 1DL+1WL X+VE
1 1.0 3 1.0
LOAD COMB 23 1DL-1WL X-VE
1 1.0 4 -1.0
LOAD COMB 24 1DL+1WL Z+VE
1 1.0 5 1.0
LOAD COMB 25 1DL-1WL Z-VE
1 1.0 6 -1.0
PERFORM ANALYSIS PRINT ALL
LOAD LIST 7 TO 16
PARAMETER 1
CODE IS800 LSD
CMX 0.4 MEMB 1 TO 8 18 TO 25
CMY 0.4 MEMB 1 TO 8 18 TO 25
CMZ 0.4 MEMB 1 TO 8 18 TO 25
FU 410000 ALL
KX 1.2 MEMB 9 TO 17 26 TO 34
LAT 1 MEMB 9 TO 17 26 TO 42
LX 2.852 MEMB 9 TO 17 26 TO 34
LY 2.5905 MEMB 1 TO 8 18 TO 25
LY 1.369 MEMB 43 TO 46
LY 1.943 MEMB 49 50 53 54
LY 2.04 MEMB 51 52 55 56
LY 0.713 MEMB 47 48
LZ 3.81 MEMB 1 TO 3 5 TO 7 18 TO 20 22 TO 24
LZ 1.371 MEMB 4 8 21 25
LZ 1.369 MEMB 43 TO 46
LZ 1.943 MEMB 49 50 53 54
LZ 2.04 MEMB 51 52 55 56
LZ 0.713 MEMB 47 48
KY 0.8 MEMB 43 TO 56
KZ 0.8 MEMB 43 TO 46 49 TO 56
TRACK 2 ALL
LX 0.915 MEMB 35 TO 42
CHECK CODE ALL
LOAD LIST 17 TO 25
PARAMETER 2
CODE IS800 LSD
DJ1 23 MEMB 26 TO 34
DJ2 28 MEMB 26 TO 34
DJ1 5 MEMB 9 TO 17
DJ2 10 MEMB 9 TO 17
DJ1 23 MEMB 35
DJ2 5 MEMB 35 36
DJ1 30 MEMB 36
DJ2 12 MEMB 36
DJ1 31 MEMB 37
DJ2 13 MEMB 37
DJ1 32 MEMB 38
DJ2 14 MEMB 38
DJ1 33 MEMB 39
DJ2 15 MEMB 39
DJ1 34 MEMB 40
DJ2 16 MEMB 40
DJ1 35 MEMB 41
DJ2 17 MEMB 41
DJ1 28 MEMB 42
DJ2 10 MEMB 42
DFF 300 MEMB 9 TO 17 26 TO 42
CHECK CODE MEMB 9 TO 17 26 TO 42
FINISH
Thank you.