Challenge

Structural Modelling using Etabs 2018

AIM - TO DESIGN A G+7 RESIDENTAIL APT IN ZONE 5 WITH KEEPING MIND ALL THE CODEL REQ OF IS 1893 and IS 13920.AND CHECKING THE MODEL.

PROCEDURE -

FIRST WE HAVE TO PREPARE A COLUMN LAYOUT PLAN OR FRAMING PLAN WITH THE HELP OF GIVEN ARCHITECTUTAL PLAN

AFTER THIS WE HAVE TO ADD GRIDS AND STOREY DATA TO THE ETABS AND THEN DEFINE MATERIAL AND SECTION PROPERTIES TO THE ETABS.
AFTER ADDING DATA FOR BEAM, COLUMN AND SLAB, SHEER WALL WE CAN ADD THE USING QUICK ADD COMMAND IN THE ETABS.
WE ALSO HAVE TO DEFINE LOAD CASES FOR BRICKWALL, LIVE, FLOOR FINISHES AND EQUIVALENT LATERAL FORCE I.E SEISMIC EQX AND EQY, FIRST WE HAVE TO CALCULATE TIME PERIOD OF THE STRUCTURE.
WHILE ADDING BEAM AND COLUMN WE HAVE TO MAKE SURE MOMENT OF INERTIA FOR BEAM WILL BE 0.35 AND FOR COLUMN 0.7

WE SHOULD ADD MASS SOURCE WHERE LIVE LOAD SHOULD BE ONLY 25%, AND OTHER LOAD WILL BE 100%, THEN WE CAN ADD MODAL VALUE.
SHEAR WALL SHALL BE ASSIGNED TO THE DESIRED LOCATION AND SHEAR WALL LABEL SHOULD BE ASSIGNED.

DIAPGRAHM SHOULD BE ASSIGNED TO ALL THE FLOORS
WE HAVE TO KEEP IN MIND THAT WE HAVE TO ADD LIVE LOAD REDUCTION FACTOR SINCE ITS A G+7 BUILDING.

RESPONSE SPECTRUM SHOULD BE DEFINED, RSx and RSy respectively
then the model should be checked for any geometric error, if safe we can run the analysis to check the results
after analysis we have to change the value of scale factor with accordance to base shear of eqx and eqy should the shear due to equivalent lateral force is same as of response spectrum.

CHECKS TO BE DONE AFTER ANALYSIS

Modal mass participation for first 3 modes dominates at least 65% (Achieved for

X-axis only)
Mode-1 and Mode-2 differs by 10% (Achieved) MODE1 - 1.314 SEC MODE 2- 1.026 SEC { ALSO CAN BE SEEN IN ABOVE IMAGE }

Ship work like this
in your own course.