Is it a good practise to design steel frame and its RCC column/pedestal base in one file?

TAAD SPACE
START JOB INFORMATION
ENGINEER DATE 17-Mar-18
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 0 0; 2 0 5 0; 3 5 7 0; 4 10 5 0; 5 10 0 0; 6 3.14754 6.25901 0;
7 6.85695 6.25722 0; 8 0 4 0; 9 0.928477 5.37139 0; 10 10 4 0;
11 9.07152 5.37139 0; 12 1.39271 5.55709 0; 13 2.78543 6.11417 0;
14 4.17814 6.67126 0; 15 8.60728 5.55709 0; 16 7.21457 6.11417 0;
17 5.82186 6.67126 0; 18 0 -0.9 0; 19 10 -0.9 0;
MEMBER INCIDENCES
1 1 8; 2 2 9; 3 3 17; 4 4 10; 5 6 14; 6 7 16; 7 6 7; 8 8 2; 9 9 12; 10 8 9;
11 10 5; 12 11 4; 13 10 11; 14 12 13; 15 13 6; 16 14 3; 17 15 11; 18 16 15;
19 17 7; 20 1 18; 21 5 19;
DEFINE MATERIAL START
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
ISOTROPIC CONCRETE
E 2.17185e+007
POISSON 0.17
DENSITY 23.5616
ALPHA 1e-005
DAMP 0.05
TYPE CONCRETE
STRENGTH FCU 27579
END DEFINE MATERIAL
MEMBER PROPERTY INDIAN
2 TO 10 12 TO 19 TABLE ST ISMB200
1 11 TABLE FR ISMC150
MEMBER PROPERTY INDIAN
20 21 PRIS YD 0.5 ZD 0.5
CONSTANTS
MATERIAL STEEL MEMB 1 TO 19
MATERIAL CONCRETE MEMB 20 21
SUPPORTS
18 19 FIXED
LOAD 1 LOADTYPE Dead TITLE LOAD CASE 1
SELFWEIGHT Y -1
JOINT LOAD
12 TO 17 FY -1.5
2 4 FY -0.75
LOAD 2 LOADTYPE Live REDUCIBLE TITLE LOAD CASE 2
JOINT LOAD
12 TO 17 FY -3.6
2 4 FY -1.8
LOAD COMB 3 GENERATED INDIAN CODE GENRAL_STRUCTURES 1
1 1.5 2 1.5
LOAD COMB 4 GENERATED INDIAN CODE GENRAL_STRUCTURES 2
1 1.2 2 1.2
LOAD COMB 5 GENERATED INDIAN CODE GENRAL_STRUCTURES 3
1 1.5
LOAD COMB 6 GENERATED INDIAN CODE GENRAL_STRUCTURES 4
1 0.9
PERFORM ANALYSIS PRINT STATICS CHECK
PRINT SUPPORT REACTION LIST 18 19
PRINT MEMBER FORCES LIST ALL
LOAD LIST 3
PARAMETER 1
CODE INDIAN
CHECK CODE MEMB 1 TO 19
START CONCRETE DESIGN
CODE INDIAN
DESIGN COLUMN 20 21
END CONCRETE DESIGN
FINISH