7/27/2019 ETABS G+4

1/69

7/27/2019 ETABS G+4

2/69

7/27/2019 ETABS G+4

3/69

7/27/2019 ETABS G+4

4/69

Building Plan Grid system and storey Data Definitions will be displayed after selecting Nobutton.

Set the grid line and spacing between two grid lines. Set the storey heightdata using Edit storey Data command.

7/27/2019 ETABS G+4

5/69

Note: You can change Grid spacing by choosing Custom Grid spacing, forcolumn varying spacing then click Edit Grid you can also change any storeyheight by choosing Custom Storey Data, then click on Edit Storey Data.

Go to Main menu Edit Storey data Edit Storey.

7/27/2019 ETABS G+4

6/69

7/27/2019 ETABS G+4

7/69

7/27/2019 ETABS G+4

8/69

7/27/2019 ETABS G+4

9/69

7/27/2019 ETABS G+4

10/69

STEP 3: (Define Material Properties)

From Main menu Define Material Property Add new material Material Name =M30Concrete cubic comp. strength fck =30Bending Reinforcement yield strength fy =415

Shear Reinforcement yield strength fy =415 Ok Ok.

7/27/2019 ETABS G+4

11/69

7/27/2019 ETABS G+4

12/69

STEP 4: (Define Frame section)

7/27/2019 ETABS G+4

13/69

Define Column:

From Main menu Define Frame section Add rectangular Material

name =M30 (select) section Name =C600x300M30Dimensions :Depth (3) =600mmWidth (2) =300mm

7/27/2019 ETABS G+4

14/69

7/27/2019 ETABS G+4

15/69

Bar size =25 dCorner bar =25 d

Reinforcement to be designed Ok Ok.

Define Beam:

From Main menu Define Frame section Add rectangular Material

name =M30 (select) Section Name=B230x700M30Dimensions:Depth (3) =700mmWidth (2) =300mm

7/27/2019 ETABS G+4

16/69

Select Beam

Define Slab:

From Main menu define Wall/Slab /Deck section Add New slab

7/27/2019 ETABS G+4

17/69

Section name = S1Material name = M30.

MembraneMembrane =125 mm

Bending =125mm

Select Membrane Ok Ok.

7/27/2019 ETABS G+4

18/69

STEP 5: (Drawing Columns, Beams, and Slabs)Drawing Columns:

From Main menu Draw Draw line objects Create column in region

Property = C600x300M30 Select or Click on the column joints in Plan view (Left window) with similar

storey option. If necessary change angle =90

Change Propertycorresponding to column designation and click on respective column joints

Close.

7/27/2019 ETABS G+4

19/69

7/27/2019 ETABS G+4

20/69

7/27/2019 ETABS G+4

21/69

Drawing Slab:

From Main menu Draw Draw area objects Create areas at click (Draw

areas) (Plan) Property =S1 Click on the periphery of column joints and

press enter (With similar storey option).

7/27/2019 ETABS G+4

22/69

7/27/2019 ETABS G+4

23/69

7/27/2019 ETABS G+4

24/69

STEP 6:(Assigning Support Condition)

Set Base floor Plan view in left window Set Column points (with mouse)

From Main menu Assign Joint/Point Restraints (supports) Select

Fixed Ok.

7/27/2019 ETABS G+4

25/69

7/27/2019 ETABS G+4

26/69

To view Support assigned

From top Tool bar Set Building view option

Visible in view

Supports Ok.

Go to Elevation view 1 and view . For other views click arrow at top of

tool bar.

STEP 7: (Defining Loads)

1.Gravity Loads (Dead Load & Live Load)

From Main menu Define Static Load Cases

Load = SIDL (Super Imposed Dead Load)Type = Dead

Self weight multiplier =0 Add New Load Ok.Load = WallType= Dead

Self weight multiplier =0 Add New Load Ok.

Note:For Self weight multiplier will be 1 for beams and columns of dead load. Forall other loads, it will be zero.

7/27/2019 ETABS G+4

27/69

7/27/2019 ETABS G+4

28/69

Assigning the Loads:

Activate left window and set to Plan view Activate or select similar storeyoption (at bottom) and select all slabs

From Main menu Assign

Shell / Area loads Uniform

Load case name =SIDL Uniform loadLoad = 1.50 Kn/m2 (units Kn.m)

Direction Gravity Ok.

In the same manner assign Load case name = Live Uniform loadLoad = 2.0 Kn/m2 (units Kn.m)

Direction : Gravity Ok.

7/27/2019 ETABS G+4

29/69

7/27/2019 ETABS G+4

30/69

7/27/2019 ETABS G+4

31/69

Assigning Wall loads:9 wall load = 11.176Kn/m (First to fourth floor)Ground floor =14.224Kn/m.Terrace floor=4.508Kn/m.

7/27/2019 ETABS G+4

32/69

In left side window select the beams in first to fourth floor by settingsimilar storey options and view the status bar to know no. of beams selected

From Main menu Assign Frame /Line loads Distributed Load case name = wall. Unit Kn.m

ForcesDirection Gravity

Uniform load=11.176 Kn/m Replace existing loads Ok.In the same manner apply Ground floor and terrace floor wall loads bysetting single storey option and assign the wall loads.

To see the load assigned :

Right click the particular member corresponding load Ok.

Note:For point load :

From Main menu Assign Joint/Point loads Load case name =Dead. Units Kn.m.

Replace existing loads

Forces Global =10 Kn Ok.

7/27/2019 ETABS G+4

33/69

7/27/2019 ETABS G+4

34/69

7/27/2019 ETABS G+4

35/69

7/27/2019 ETABS G+4

36/69

7/27/2019 ETABS G+4

37/69

2. Wind Loads :In ETABS there are two ways to define lateral loads (Wind, earth quake).Built in option will automatically calculate lateral loads as per availabledesign codes.

Define wind load parameters as per IS 875 --Part 3 (1987)

From Main menu Define Static Load cases Load = X or YType = WindSelf weight multiplier =0

Auto Lateral load =IS 8751987 Add New Load Select wind Xload and click on modify lateral loads to specify required wind load

parameter. As per IS 875 Ok Ok.

Creating dummy areas with property =None

Set required elevation view in right window From Main menu Draw

Draw area objects Draw rectangular areas Property = None Click on the perimeter of area and press enter.

Foot Note: Apply wind load for selections.To select wind area

Main menu Select By area object type select none Ok.

Assigning wind loads

Select drawing area of required elevation From Main menu

Assign Shell/area loads Wind Pressure coefficients Wind load case name =Wind X

7/27/2019 ETABS G+4

38/69

Coefficient Cp= - (Change if required) Ok.

To see wind load selection

Set Building view option

Area section

Line section Ok.

3.Earthquake AnalysisIn building, slab is considered as single rigid member during earthquakeanalysis.Select left side window.

Select all slabs by setting all floors/ similar storey option From Main menu

Define Diaphragms Select D1 Modify/ Show diaphragms

Select Rigid Ok Ok.

7/27/2019 ETABS G+4

39/69

7/27/2019 ETABS G+4

40/69

Define Mass SourceAs per IS 1893-->2002 25% of Live load is considered on all floors ofbuilding.

From Main menu Define Mass source select From Loads

Load =Dead; Multiplier -->1.0 Add

Load = Live; Multiplier =0.25 Add

Load =SIDL; Multiplier =1.0 Add

Load = Wall; Multiplier =1.0 Add Ok.

7/27/2019 ETABS G+4

41/69

Define Earthquake Load (Static Method)

From Main menu Define Static Load cases Load =EQXType = QuakeDefault Multiplier =0

Auto Lateral load = IS 18932002

Add New Load Select the load EQX Modify lateral load If requiredchange values as per IS 1893 Select X Direction

Select Program calc per code =0.36 (change as per requirement) Ok

Ok.

7/27/2019 ETABS G+4

42/69

Assigning Diaphragms

Set all storey option and select all slabs From Main menu Assign

Shell area Diaphragms D1 Ok.

To view the Diaphragm

Go to Set Building View objects

Diaphragm

7/27/2019 ETABS G+4

43/69

7/27/2019 ETABS G+4

44/69

7/27/2019 ETABS G+4

45/69

7/27/2019 ETABS G+4

46/69

7/27/2019 ETABS G+4

47/69

7/27/2019 ETABS G+4

48/69

7/27/2019 ETABS G+4

49/69

7/27/2019 ETABS G+4

50/69

7/27/2019 ETABS G+4

51/69

7/27/2019 ETABS G+4

52/69

7/27/2019 ETABS G+4

53/69

7/27/2019 ETABS G+4

54/69

7/27/2019 ETABS G+4

55/69

7/27/2019 ETABS G+4

56/69

7/27/2019 ETABS G+4

57/69

7/27/2019 ETABS G+4

58/69

7/27/2019 ETABS G+4

59/69

7/27/2019 ETABS G+4

60/69

7/27/2019 ETABS G+4

61/69

7/27/2019 ETABS G+4

62/69

7/27/2019 ETABS G+4

63/69

7/27/2019 ETABS G+4

64/69

7/27/2019 ETABS G+4

65/69

7/27/2019 ETABS G+4

66/69

7/27/2019 ETABS G+4

67/69

7/27/2019 ETABS G+4

68/69

7/27/2019 ETABS G+4

69/69