Structural Modelling using Etabs 2018
DATA REQUIRED for ETABS analysis
pinned support , base +9 story(groundto terrace)+1 mumty
column 450mm *600mm beam 400mm*500mm,slab 150mm thick shear wall 300mm thick
live load 2.5kN/me, floorfinsh 1.5 kN/m2 ,wall load 5kN/m2 ,water tank 20 k liter over mumty equivalent to 200kn overall load
PROCEDURE
as per given quetion the floor draw and aplly column , beam, slab, wall size as per given aftrer that check the
CONCEPTUAL DESIGN CONSIDERATION BEFORE ANALYSIS
MODAL MASS PARTICIPATION FOR FIRST 3 MODES DOMINATES AT LEAST (65%) ACHIEVED FOR X AXIS
MODE -1&MODE2DIFF BY 10%
PRINCIPLE MODE BE GRATER THAN TORSIONAL MODE
INTRR STIRY DRIFT RATIO LIMITED TO 0.0049
AXIAL STRESS IN COLUMN AND SHEAR WALL
BASE SHERA BETWEEN SHEAR WALL &COLUMNS &WALLS
RE-enter and cut out check &modification(compromise)
Verticle irregularity
Planar irregularity
2% shear wall area with respect to building area (8m2)
Stiffness modifier for column ,beam &shear wall (0.35 beam, 0.7 for verticle)
ANS:
KEEP POINTS TO REMEMBER
NO SLAN NO WALLS AT GROUND FLOOR
PROPER END RELESE IN BEAMS AS PER ENGINEER ENTINT
NO INTERIOR WALLS LOAD IN TERRACE
COMPARISION OF STATIC AND DYNANAMIC FORCES AND REVISING THE FACTOR
MUMTY LEVEL
3D VIEW
STORY 1TO 9
BASE PLAN WITH PINNED
CHECK AFTER ANALYSIS
MODAL MASS PARTICIPATION FOR FIRST 3 MODES DOMINATES AT LEAST (65%) ACHIEVED FOR X AXIS
MODE -1&MODE2DIFF BY 10%
PRINCIPLE MODE BE GRATER THAN TORSIONAL MODE(ARCHIVED)
INTRR STIRY DRIFT RATIO LIMITED TO 0.0049(ARCHIVED)
AXIAL STRESS IN COLUMN AND SHEAR WALL (ARCHIVED)
BASE SHERA BETWEEN SHEAR WALL &COLUMNS &WALLS (ARCHIVED)
RESULT: AS PER GIVEN QUETION ALL CHEKS ARE DONE