column base connection

[a.shaaban]

when ever i try to design the connection between plate & column i get an error
i am still a student and would appreciate any help
thanks guys in advance

STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 25-Jul-16
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 0 0.3; 3 1 0 0.3; 4 1 0 0; 6 0 0 0; 35 0 0 0.15; 36 0 2.5 0.15;
37 0.19 0 0.15; 38 0.38 0 0.15; 39 0.57 0 0.15; 40 0.76 0 0.15; 41 0.95 0 0.15;
42 0.19 2.5 0.15; 43 0.38 2.5 0.15; 44 0.57 2.5 0.15; 45 0.76 2.5 0.15;
46 0.95 2.5 0.15; 47 0.19 0 0.3; 48 0.19 0 0; 49 0.38 0 0.3; 50 0.38 0 0;
51 0.57 0 0.3; 52 0.57 0 0; 53 0.76 0 0.3; 54 0.76 0 0; 55 0.95 0 0.3;
56 0.95 0 0; 57 1 0 0.15;
MEMBER INCIDENCES
45 36 35; 46 37 42; 47 43 38; 48 44 39; 49 45 40; 50 46 41;
ELEMENT INCIDENCES SHELL
65 6 35 37 48; 66 37 47 1 35; 67 37 38 49 47; 68 38 39 51 49; 69 39 40 53 51;
70 40 41 55 53; 71 57 41 55 3; 72 4 56 41 57; 73 56 54 40 41; 74 54 52 39 40;
75 52 50 38 39; 76 50 48 37 38;
ELEMENT PROPERTY
65 TO 76 THICKNESS 0.05
DEFINE MATERIAL START
ISOTROPIC CONCRETE
E 2.17185e+007
POISSON 0.17
DENSITY 23.5616
ALPHA 1e-005
DAMP 0.05
TYPE CONCRETE
STRENGTH FCU 27579
ISOTROPIC STEEL
E 2.05e+008
POISSON 0.3
DENSITY 76.8195
ALPHA 1.2e-005
DAMP 0.03
TYPE STEEL
STRENGTH FY 253200 FU 407800 RY 1.5 RT 1.2
END DEFINE MATERIAL
MEMBER PROPERTY EUROPEAN
46 TO 50 TABLE ST TUB60403
MEMBER PROPERTY AMERICAN
45 TABLE ST TUB25253
CONSTANTS
BETA 90 ALL
MATERIAL STEEL ALL
SUPPORTS
1 6 47 TO 56 FIXED
MEMBER RELEASE
45 START MP 0.995
45 END MP 0.995
LOAD 1 LOADTYPE None TITLE SELF WEIGHT
SELFWEIGHT Y -1
LOAD 2 LOADTYPE None TITLE WIND LOAD
MEMBER LOAD
45 TO 50 UNI GZ -0.1
LOAD 3 LOADTYPE None TITLE LOAD ON FOOTING
ELEMENT LOAD
65 TO 76 PR GY -12
LOAD COMB 4 TOTAL SERVICE LOAD
1 1.0 2 1.0 3 1.0
PERFORM ANALYSIS
PARAMETER 1
CODE AISC UNIFIED 2010
CHECK CODE ALL
PARAMETER 2
CODE AISC UNIFIED 2010
STEEL MEMBER TAKE OFF LIST ALL
PARAMETER 3
CODE AISC UNIFIED 2010
SELECT OPTIMIZED
PARAMETER 4
CODE AISC UNIFIED 2010
STEEL TAKE OFF LIST ALL
FINISH

 

[SethGuthrie]

Are you using STAAD.pro in conjunction with Ram Connection for a column base plate? What versions of each are you using?

 

[a.shaaban]

i am using staad & steel design for connection
my version of staad is 20.07.10.64
whenever i try to design the members in steel design , i get an Error :
Error found while designing member 2.
Error : No records are available in section database.

Thanks for your reply its much appreciated

 

[dozer]

There is no member 2 so I don't see how you are getting that error. What is "steel design for connection"? As Seth mentioned, the connection design software that directly interfaces with STAAD is RAM Connection. It requires a separate license. If those plate elements are meant to represent one huge base plate that 6 columns are connected to then RAM Connection wouldn't work anyway. Or any connection program that I know of for that matter. If you are just trying to learn to use the software then this is probably not a good example problem. If you are truly trying to understand this particular structure then ditch the software and work this out by hand with the help of a mentor.

BTW, your releases on member 45 don't make any sense. The release at the top of the column does nothing because it's a cantilever. The release at the bottom is extremely soft causing excessive deflection. You may be confused by STAAD's backwards way of indicating partial releases. I'm guessing you wanted 99.5% of full stiffness. If that they case you should have used "END MP 0.005".

 

[a.shaaban]

thank you so much dozer for your positive feedback '
i guess you are right about ditching these software and trying to solve it manually
thanks again , its much appreciated