STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 10-Apr-24
END JOB INFORMATION
INPUT WIDTH 72
SET NL 17
UNIT FEET POUND
JOINT COORDINATES
1 0 100 0; 2 0 90 0; 3 0 80 0; 4 0 70 0; 5 0 66.667 0; 6 0 56.667 0;
7 0 46.667 0; 8 0 36.667 0; 9 0 30 0; 13 -5 0 -5; 14 -5 0 5; 15 5 0 -5;
16 5 0 5; 17 -5 15 -5; 18 -5 15 5; 19 5 15 -5; 20 5 15 5; 21 -5 30 -5;
22 -5 30 5; 23 5 30 5; 24 5 30 -5; 25 -5 30 -1.66667; 26 -5 30 1.66667;
27 -1.66667 30 5; 28 1.66667 30 5; 29 5 30 -1.66667; 30 5 30 1.66667;
31 1.66667 30 -5; 32 -1.66667 30 -5; 33 -1.66667 30 0; 34 0 30 -1.66667;
35 1.66667 30 0; 36 0 30 1.66667; 37 -1.66667 30 -1.66667;
38 -1.66667 30 1.66667; 39 1.66667 30 -1.66667; 40 1.66667 30 1.66667;
*
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; 12 13 17;
13 14 18; 14 16 20; 15 15 19; 16 17 18; 17 18 20; 18 19 20; 19 19 17;
20 13 18; 21 14 17; 22 14 20; 23 18 16; 24 19 16; 25 15 20; 26 13 19;
27 17 15; 28 17 21; 29 18 22; 30 20 23; 31 19 24; 32 21 25; 33 22 27;
34 24 29; 35 24 31; 36 17 22; 37 18 21; 38 18 23; 39 22 20; 40 24 20;
41 19 23; 42 17 24; 43 21 19; 44 25 26; 45 26 22; 46 27 28; 47 28 23;
48 29 30; 49 30 23; 50 31 32; 51 32 21; 52 25 37; 53 26 38; 54 32 37;
55 31 39; 56 33 38; 57 34 39; 58 35 40; 59 36 40; 60 33 9; 61 34 9;
62 35 9; 63 36 9; 64 37 34; 65 38 36; 66 37 33; 67 39 35; 68 38 27;
69 39 29; 70 40 28; 71 40 30;
*
UNIT INCHES POUND
DEFINE MATERIAL START
ISOTROPIC STEEL
E 2.9e+07
POISSON 0.3
DENSITY 0.283
ALPHA 6.5e-06
DAMP 0.03
G 1.12e+07
TYPE STEEL
STRENGTH RY 1.5 RT 1.2
END DEFINE MATERIAL
CONSTANTS
*
MATERIAL STEEL ALL
*
*
MEMBER PROPERTY 'US (AISC 2023).DB3'
12 TO 15 28 TO 31 TABLE 'W' ST 'W8X35'
20 TO 27 36 TO 43 TABLE 'ANGLE' ST 'L2X2X1/4'
16 TO 19 TABLE 'W' ST 'W8X35'
*
MEMBER PROPERTY AMERICAN
*RISER
1 TO 8 TABLE ST PIPE OD 36 ID 35.5
* Dummy members connecting riser to structure
60 TO 63 TABLE ST PIPE OD 12 ID 11
MEMBER PROPERTY 'US (AISC 2023).db3'
32 TO 35 44 TO 59 64 TO 71 TABLE 'W' ST 'W10X45'
*
MEMBER TRUSS 
20 TO 27 36 TO 43
*
SUPPORTS
13 TO 16 PINNED
*
UNIT FEET POUND
LOAD 1 NATURAL FREQUENCY
SELFWEIGHT X 1 
MODAL CALCULATION REQUESTED
*
LOAD 2 WIND LOAD
MEMBER LOAD
1 TO 8 UNI GX 100
*
LOAD 3 DUMMY FORCE IN X
JOINT LOAD
9 FX 10000
*
LOAD 4 DUMMY FORCE IN Z
JOINT LOAD
9 FZ 10000
*
LOAD 5 DUMMY FORCE IN Y
JOINT LOAD
9 FY 10000
*
LOAD 6 DUMMY MOMENT ABOUT X
JOINT LOAD
9 MX 10000
*
LOAD 7 DUMMY MOMENT ABOUT Z
JOINT LOAD
9 MZ 10000
*
PERFORM ANALYSIS
*
*
UNIT INCHES POUND
PARAMETER 1
CODE AISC
FYLD 36000 ALL
*
CHECK CODE ALL
FINISH
