CODES FOR STAAD W SECTION

[AZIALLURE]

i am designing a problem that is laterally supported only at the ends. is 30 ft long. has a uniform live load = -6 k/ft. a uniform dead load = -2 k/ft. left is pinned, right is roller. and the live load deflection cant exceed L/360. it is a992 steel. and i have to select a W-shape. can someone tell me what I am doing wrong?

ENGINEER DATE 08-Feb-07
END JOB INFORMATION
INPUT WIDTH 79
UNIT FEET KIP
JOINT COORDINATES
1 0 0 0; 2 30 0 0;
MEMBER INCIDENCES
1 1 2;
DEFINE MATERIAL START
ISOTROPIC STEEL
E 4.176e+006
POISSON 0.3
DENSITY 0.489024
ALPHA 6.5e-006
DAMP 0.03
END DEFINE MATERIAL
* CHOOSE ANY STRUCTURAL SECTION
MEMBER PROPERTY AMERICAN
1 TABLE ST W10X49
CONSTANTS
MATERIAL STEEL MEMB 1
SUPPORTS
1 PINNED
2 FIXED BUT FX MZ
LOAD 1 LOADTYPE Dead TITLE LOAD CASE 1
MEMBER LOAD
1 UNI GY -2
LOAD 2 LOADTYPE Live TITLE LOAD CASE 2
MEMBER LOAD
1 UNI GY -6
PERFORM ANALYSIS
PRINT ANALYSIS RESULTS
* CHECKS OF THE SECTION FAILS OR PASSES
* OUTPUTS A SECTION THAT PASSES THE REQUIREMENTS
PARAMETER
CODE AISC
FYLD 7200
TRACK 4 ALL
DFF 360
DJ1 1
DJ2 2
CAN 0
BEAM 1 ALL
UNT 30 ALL
UNB 30 ALL
CHECK CODE ALL
SELECT ALL
PERFORM ANALYSIS
STEEL TAKE OFF ALL
FINISH

 

[RAYC1]

You need a CHECK CODE ALL after the last PERFORM ANALYSIS to see the effect of the member selection after the analysis. You may want a STEEL TAKE OFF before the selection to compare with the after value. You may also want a second PRINT ANALYSIS RESULTS based on the selection.

LOAD 2 LOADTYPE Live TITLE LOAD CASE 2
MEMBER LOAD
1 UNI GY -6
PERFORM ANALYSIS
STEEL TAKE OFF ALL

PRINT ANALYSIS RESULTS
* CHECKS OF THE SECTION FAILS OR PASSES
* OUTPUTS A SECTION THAT PASSES THE REQUIREMENTS
PARAMETER
CODE AISC
FYLD 7200
TRACK 4 ALL
DFF 360
DJ1 1
DJ2 2
CAN 0
BEAM 1 ALL
UNT 30 ALL
UNB 30 ALL
CHECK CODE ALL
SELECT ALL
PERFORM ANALYSIS
CHECK CODE ALL
PRINT ANALYSIS RESULTS
STEEL TAKE OFF ALL
FINISH

 

[DTJ]

You don't indiate any load combinations in your input file. D+L? Also note that the DFF command will check deflection for all load cases unless a LOAD LIST command is used to specify only the Live Load Case.