STAAD PLANE 
*DIRECT ANALYSIS WITH INACTIVE MEMBERS
START JOB INFORMATION
ENGINEER DATE 14-Dec-16
END JOB INFORMATION
UNIT INCHES KIP
JOINT COORDINATES
1 0 0 0; 2 240 0 0; 3 480 0 0; 4 0 180 0; 5 240 180 0; 6 480 180 0;
7 240 360 0; 8 480 360 0;
MEMBER INCIDENCES
1 1 4; 2 2 5; 3 5 7; 4 3 6; 5 6 8; 6 4 5; 7 5 6; 8 7 8; 9 1 5; 10 2 4;
11 3 5; 12 2 6; 13 6 7; 14 5 8;
MEMBER TRUSS 
9 TO 14
MEMBER PROPERTY AMERICAN
1 TO 5 TABLE ST W12X26
6 TO 8 TABLE ST W18X35
9 TO 14 TABLE LD L50505
UNIT FEET KIP
DEFINE MATERIAL START
ISOTROPIC MATERIAL1
E 4.176e+006
DEN 0.489
POISSON 0.3
END DEFINE MATERIAL
UNIT INCHES KIP
CONSTANTS
MATERIAL MATERIAL1 ALL
SUPPORTS
1 TO 3 PINNED
*
DEFINE DIRECT ANALYSIS
FLEX 1 LIST 1 TO 8
FYLD 50 LIST ALL
AXIAL LIST ALL
NOTIONAL LOAD FACTOR 0.002
END
*
INACTIVE MEMBER 9 TO 14
UNIT FEET KIP
LOAD 1 DEAD AND LIVE LOAD
SELFWEIGHT Y -1 
MEMBER LOAD
6 8 UNI GY -1
7 UNI GY -1.5
PERFORM DIRECT ANALYSIS LRFD
CHANGE
*
INACTIVE MEMBER 10 11 13
LOAD 2 DL + WIND FROM LEFT
REPEAT LOAD
1 1.0 
JOINT LOAD
4 FX 30
7 FX 15
PERFORM DIRECT ANALYSIS LRFD
CHANGE
*
INACTIVE MEMBER 9 12 14
LOAD 3 DL + WIND FROM RIGHT
REPEAT LOAD
1 1.0 
JOINT LOAD
6 FX -30
8 FX -15
PERFORM DIRECT ANALYSIS LRFD
CHANGE
FINISH
