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Student Name Hall TicketNumber

MOHAMMED

ISMAIL10D51A0135

SYED SIRAJ UL

AHMED10D51A0155

MOHAMMEDABDUL AZIZ

10D51A0147

MOHAMMED

FAREED ATHER10D51A0132

VIF COLLEGE OF ENGINEERING & TECHNOLOGY 

(HimayatNagar,Gandipet “X”Road,Moinabad Mandal,R.R.dist 500075,Hyderabad)

( Approved by AICTE, Affiliated to JNTU)

Under the Guidance of

Mr.M.A.SAMI

(Asst. Professor)

DEPARTMENT OF

CIVIL ENGINEERING

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INTRODUCTION OF E-TABS

• The Most Comprehensive Software forthe Modeling, Analysis and Design of

Buildings. 3D Perspective, Plan, Elevation,

Developed Elevation, and Custom views.

• 3D model generation using plans and

elevations.• CAD drawing/editing for fast, intuitive framing

layout.

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IMPORTANCE OF E TABS• Multiple views in 3D perspective with zooming and

snapping.

• Using E tabs to design a member like CONCRETE DESIGNshear walls.

• Defining the loads which affects the building.

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Design process

Requirements SpecificationsConseptual

Design

EmbodimentDesign

(SimulationModel)

DetailedDesign

Specification:Building should be design according to:

 – ACI 318-05 Code.

 – IBC 2009/ASCE 7-05 for calculating the wind loads.

Structural Analysis programs:

ETABS.

Requirement:

 – Plan area: 1750.2 m2 

 – Total number of stories: G+3

 –  Typical Story height: 3.5 m

 – Use of the building: residential building

 – Used materials: normal and high strength

material and reinforcing steel

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Embodiment Design

0.00

100,000.00

200,000.00

300,000.00

400,000.00

500,000.00

600,000.00

700,000.00

800,000.00

900,000.00

1,000,000.00

1,100,000.00

1,200,000.00

1 2 3 4 5 6

ETABS Loads

Hand Calculations

Type of LoadLoads From

ETABS (kN)

Loads From Hand

Calculation (kN)Difference%

Dead 1,193,341.86 1,134,006.9 4.9

Live 139,747.35 139,731.28 0.01

Earthquake(UBC) 28,781.14 27,491.1 4.5

Earthquake(IBC) 25,875.41 24,948.2 3.6

Wind-X 10,578.63 10,478.31 0.95

Wind-Y 12,855.74 12,734.39 0.94

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 MANUAL DESIGNING

• Manual designing meanscalculation of loads, bending

moments,area of steel,check for

shear,check for deflection.

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LIMIT STATE DESIGN

Limit State: State at which one of the conditions pertaining tothe structure has reached a limiting value

Limit States

Limit States of Strength Limit States of Serviceability

Strength as governed by material Deflection

Buckling strength VibrationStability against overturning, sway Fatigue cracks (reparable damage)

Fatigue Fracture Corrosion

Brittle Fracture Fire resistance

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 Basis for Limit State Design

The structure shall be designed to withstand safely all loadslikely to act on it throughout its life.

It shall also satisfy the serviceability requirements, such as

limitations of deflection and vibration.

It shall not suffer total collapse under accidental loads such as

from explosions or impact or due to consequences of human

error to an extent beyond the local damages.

The objective of design is to achieve a structure that will remain

fit for use during its life with an acceptable target reliability.

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DESIGN OF A BEAM• STEPS INCLUDES ARE:

• 1.CALCULATION OF DEAD LOAD + LIVE LOAD.

• 2.CALCULATION OF MOMENTS AND SHEARFORCE.

• 3.CALCULATION OF MU LIMIT.

• 4.CALCULATION OF AREA OF STEEL.

• 5. CHECK FOR SHEAR.

• 6.CHECK FOR DEFLECTION.

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DESIGN OF BEAM

• 1. Concrete Dimensions

•  Beam width (b)

•  Depth of steel reinforcement (d)

• Section height ….h = d + cover -

to-center of steel

• 2. Area of steel reinforcement (As )

•  Ensure safety requirements

(As)min ≤ As ≤ (As)max  

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DESIGN OF SINGLY REINFORCED BEAM

• STEP 1:- CALCULATION OF LOADS:

• 1.DEAD LOAD(D.L)

• 2.LIVE LOAD(L.L)

• 3.FLOOR LOAD(F.L)

• STEP 2:- CALCULATION OF MOMENT (Mu) & SHEAR (Vu):

• (If Mu

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• STEP4:- CHECK FOR SHEAR :

•   SHEAR (Vu)=Wl/2

•   SHEAR STRESS (Tv)=Vv/bd

• STEP5:- CHECK FOR DEFLECTION:

•   (l/d)basic

•   (l/d)actual = (L/D)basic * kt*kc*kf

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SOFTWARE USED:

ETABS SOFTWARE

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IMPORTANCE OF ETABS • Fast generation of model using the concept

of similar stories

• Automated templates for typical structures

• Easy editing with move, merge, mirror and

replicate

• Powerful grouping, selection and Displayoptions

• Cut, copy and paste options.

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Modeling

Elements

Object ased Elements

Area objects

Walls

Slabs/Decks

Opening

Mass

 Loads

• Lines objects

• Columns

• Beams

• RetainingWalls

• Point objects –  Supports

 –  Springs

 –  Mass

 –  Loads