Hello!
I would like to hear your recomendations how to decrease utilization factor in bracing and rafters without unnecessary bigger sections.
Maybe I am missing something in my model, some fatal error that messes with everithing.
Is there a way to put plate stiffeners on top or bottom beam flanges?
How can I add eaves or appex haunch to the model just like in picture bellow?
STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 21-Apr-21
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 0 0; 2 0 4 0; 3 0 0 12; 4 0 4 12; 5 0 4.5 6; 6 4 0 0; 7 4 4 0; 8 4 0 12;
9 4 4 12; 10 4 4.5 6; 11 8 0 0; 12 8 4 0; 13 8 0 12; 14 8 4 12; 15 8 4.5 6;
16 12 0 0; 17 12 4 0; 18 12 0 12; 19 12 4 12; 20 12 4.5 6; 21 16 0 0;
22 16 4 0; 23 16 0 12; 24 16 4 12; 25 16 4.5 6; 26 20 0 0; 27 20 4 0;
28 20 0 12; 29 20 4 12; 30 20 4.5 6; 31 24 0 0; 32 24 4 0; 33 24 0 12;
34 24 4 12; 35 24 4.5 6; 36 0 4.25 3; 37 0 4.25 9; 38 4 4.25 3; 39 4 4.25 9;
40 20 4.25 3; 41 20 4.25 9; 42 24 4.25 3; 43 24 4.25 9; 44 0 0 3; 45 0 0 9;
46 24 0 3; 47 24 0 9; 48 8 4.25 3; 49 12 4.25 3; 50 16 4.25 3;
MEMBER INCIDENCES
1 1 2; 2 2 36; 3 4 3; 4 5 37; 5 6 7; 6 7 38; 7 9 8; 8 10 39; 9 11 12; 10 12 48;
11 14 13; 12 15 14; 13 16 17; 14 17 49; 15 19 18; 16 20 19; 17 21 22; 18 22 50;
19 24 23; 20 25 24; 21 26 27; 22 27 40; 23 29 28; 24 30 41; 25 31 32; 26 32 42;
27 34 33; 28 35 43; 29 36 5; 30 37 4; 31 38 10; 32 39 9; 45 40 30; 46 41 29;
47 42 35; 48 43 34; 61 44 36; 62 45 37; 63 46 42; 64 47 43; 65 48 15; 66 49 20;
67 50 25; 88 4 9; 89 9 37; 90 37 39; 91 39 5; 92 5 38; 93 38 36; 94 36 7;
95 7 2; 98 5 10; 99 29 34; 100 43 29; 101 43 41; 102 41 35; 103 35 40;
105 27 32; 106 40 42; 107 30 35; 110 42 27; 111 4 8; 112 2 6; 113 32 26;
114 28 34; 115 9 14; 116 14 19; 117 19 24; 118 24 29; 119 27 22; 120 22 17;
121 17 12; 122 12 7;
DEFINE MATERIAL START
ISOTROPIC STEEL
E 2.05e+08
POISSON 0.3
DENSITY 76.8195
ALPHA 1.2e-05
DAMP 0.03
TYPE STEEL
STRENGTH FY 253200 FU 407800 RY 1.5 RT 1.2
END DEFINE MATERIAL
MEMBER PROPERTY EUROPEAN
1 3 5 7 9 11 13 15 17 19 21 23 25 27 61 TO 64 TABLE ST IPE330
2 4 6 8 10 12 14 16 18 20 22 24 26 28 TO 32 45 TO 48 65 TO 67 TABLE ST IPE270
MEMBER PROPERTY EUROPEAN
88 TO 95 98 TO 103 105 TO 107 110 TO 114 TABLE ST 48.3x3.2CHS
115 TO 122 TABLE ST 48.3X3.2CHS
CONSTANTS
BETA 90 MEMB 1 3 5 7 9 11 13 15 17 19 21 23 25 27
MATERIAL STEEL ALL
SUPPORTS
1 3 6 8 11 13 16 18 21 23 26 28 31 33 44 TO 47 PINNED
MEMBER RELEASE
61 TO 64 END MP 0.99
88 TO 95 98 TO 103 105 TO 107 110 TO 122 START MPY 0.99 MPZ 0.99
88 TO 95 98 TO 103 105 TO 107 110 TO 122 END MPY 0.99 MPZ 0.99
LOAD 1 LOADTYPE Dead TITLE DL
SELFWEIGHT Y -1 LIST ALL
MEMBER LOAD
6 8 10 12 14 16 18 20 22 24 31 32 45 46 65 TO 67 UNI GY -0.852
2 4 26 28 TO 30 47 48 UNI GY -0.426
LOAD 2 LOADTYPE Live TITLE LL
MEMBER LOAD
6 8 10 12 14 16 18 20 22 24 31 32 45 46 65 TO 67 UNI GY -3.6
2 4 26 28 TO 30 47 48 UNI GY -1.8
LOAD 4 LOADTYPE Snow TITLE SL
MEMBER LOAD
6 8 10 12 14 16 18 20 22 24 31 32 45 46 65 TO 67 UNI GY -5
2 4 26 28 TO 30 47 48 UNI GY -2.5
LOAD 3 LOADTYPE Wind TITLE WX+ (ABCDE)
MEMBER LOAD
3 UNI GZ 2.442
1 UNI GZ -2.442
11 UNI GZ 3.256
7 UNI GZ 3.256 2 4
7 UNI GZ 3.256 0 2
9 UNI GZ -3.256
5 UNI GZ -3.256 2 4
5 UNI GZ -3.256 0 2
15 19 UNI GZ 2.036
23 UNI GZ 2.036 2 4
23 UNI GZ 2.036 0 2
13 17 UNI GZ -2.036
21 UNI GZ -2.036 2 4
21 UNI GZ -2.036 0 2
27 UNI GZ 1.018
25 UNI GZ -1.018
61 62 UNI GX 2.848
1 3 UNI GX 1.424
63 64 UNI GX 1.224
25 27 UNI GX 0.612
LOAD 5 LOADTYPE Wind TITLE WX+(FGHI)
MEMBER LOAD
2 30 UNI Y 3.66
4 29 UNI Y 2.442
6 8 10 12 31 32 65 UNI Y 2.848
14 16 18 20 22 24 45 46 66 67 UNI Y 0.816
26 28 47 48 UNI Y 0.408
LOAD 6 LOADTYPE Wind TITLE WZ+(ADE)
MEMBER LOAD
25 27 UNI GX 3.663
1 3 UNI GX -3.663
63 64 UNI GX 4.884
61 62 UNI GX -4.884
9 13 17 UNI GZ 2.92
21 UNI GZ 2.92 2 4
21 UNI GZ 2.92 0 2
5 UNI GZ 2.92 2 4
5 UNI GZ 2.92 0 2
1 25 UNI GZ 1.46
11 15 19 UNI GZ 1.334
23 UNI GZ 1.334 2 4
23 UNI GZ 1.334 0 2
7 UNI GZ 1.334 2 4
7 UNI GZ 1.334 0 2
3 27 UNI GZ 0.672
LOAD 7 LOADTYPE Wind TITLE WZ+(FGI)
MEMBER LOAD
2 26 UNI Y 3.662
6 10 14 18 22 UNI Y 2.442
8 12 16 20 24 31 32 45 46 65 TO 67 UNI Y 0.816
4 28 TO 30 47 48 UNI Y 0.408
LOAD COMB 8 DL ULS
1 1.4
LOAD COMB 9 DL+LL ULS
1 1.4 2 1.6
LOAD COMB 10 DL+SL ULS
1 1.4 4 1.6
LOAD COMB 11 DL+WX ULS
1 1.4 3 1.4 5 1.4
LOAD COMB 12 DL+WX+SL ULS
1 1.2 4 1.2 3 1.2 5 1.2
LOAD COMB 13 DL+WZ ULS
1 1.4 6 1.4 7 1.4
LOAD COMB 14 DL+WZ+SL ULS
1 1.2 6 1.2 7 1.2 4 1.2
LOAD COMB 15 DL+LL SLS
1 1.0 2 1.0
LOAD COMB 16 DL+SL SLS
1 1.0 4 1.0
LOAD COMB 17 DL+WX SLS
1 1.0 3 1.0 5 1.0
LOAD COMB 18 DL+WZ SLS
1 1.0 6 1.0 7 1.0
LOAD COMB 19 DL+WX+SL SLS
1 1.0 3 0.8 5 0.8 4 0.8
LOAD COMB 20 DL+WZ+SL SLS
1 1.0 6 0.8 7 0.8 4 0.8
PERFORM ANALYSIS
PARAMETER 1
CODE EN 1993-1-1:2005
KY 0.5 MEMB 2 4 10 12 14 16 18 20 26 28 TO 30 47 48 65 TO 67
KZ 0.5 MEMB 2 4 6 8 10 12 14 16 18 20 22 24 26 28 TO 32 45 TO 48 65 TO 67
UNL 6.02 MEMB 10 12 14 16 18 20 65 TO 67
CHECK CODE ALL
PARAMETER 2
CODE EN 1993-1-1:2005
STEEL TAKE OFF LIST ALL
PARAMETER 3
CODE EN 1993-1-1:2005
PY 355000 ALL
KY 0.7 MEMB 1 3 5 7 9 11 13 15 17 19 21 23 25 27 61 TO 64
KZ 0.7 MEMB 1 3 5 7 9 11 13 15 17 19 21 23 25 27 61 TO 64
FINISH
