Comparison of Design Results of Rcc (G+8 Storey) Building ... · Comparison of Design Results of...

ISSN: 2455-2631 © June 2018 IJSDR | Volume 3, Issue 6

IJSDR1806046 International Journal of Scientific Development and Research (IJSDR) www.ijsdr.org 278

Comparison of Design Results of Rcc (G+8 Storey)

Building Using StaadPro and Etabs Software

KOLAGANI. NAVYA DEEPTHI, KOLLA. NAGA SREENIVASA RAO

1M.Tech Student, 2Professor & HOD

Department of CIVIL

Chalapathi Institute of Technology

Guntur, A.P, India

Abstract - STAAD and ETABS are the present day leading design software’s in the market. Many design Companies using

this ultimate encoded software. The design involves load calculations and analyzing the whole structure. The design methods

used in STAAD.Pro and ETABS analysis are Limit State Design conforming to Indian Standard Code of Practice. From

model generation, analysis and design to visualization and result verification, STAAD.Pro is the professional’s choice.

ETABS is also a leading design software in present days used by many structural designers. Here we had also analysed a

regular structure using ETABS software for the design.STAAD and ETAB are the present day leading design software’s in

the market.

Keywords— Comparison, Static analysis, Regular, Irregular, STAAD PRO and ETABS

I. INTRODUCTION: The full form of STAAD is STRUCTURAL AIDED ANALYSIS AND DESIGN. It was developed by

Research Engineers International in Yorba Linda, CA later it was sold to Bentley systems in late 2005. STAAD.Pro is an analysis

& design software package for structural engineering used in performing the analysis & design of wide variety of types of structures.

STAAD.Pro may be utilized for analyzing and designing practically all types of structures – buildings, bridges, towers,

transportation, industrial and utility structures.

ETABS is the Acronym of EXTENDED 3D ANALYSIS OF BUILDING SYSTEMS, is software developed by Computers and

Structures, Inc. (CSI); a Berkeley, California based engineering software company founded in 1975. ETABS is an engineering

software product that can be used to analyze and design multi-story buildings using grid-like geometry, various methods of analysis

and solution techniques, considering various load combinations.

2.OBJECTIVE OF THE WORK: To carry out the modelling and analysis of R C Framed structure using StaadPro & Etabs To

design a regular plan multi storey structure a per IS-456 & IS-875,(1,2,3)

To find out shear force, bending moments and deflection of structural members.

To compare the results obtained from staadpro and etabs.

To observe the software gives more accurate and economical result.

3. LITERATURE REVIEW : D.Ramya, A.V.S.Sai Kumar: A comparative study on design of G+10 building by staadpro and

etabs. The paper focuses to conclude the effectiveness of use of a structure software between these two. They found that sometimes

staadpro is good for use but many times etabs.

Aman, Manjunath Nalwadgi, Vishal T, Gajendra : Aimed an Analysis and design of multi-storey building by using STAAD Pro

for the G+5 commercial building and shows short term deflection, structure is safe in shear and flexure, amount steel provided is

economic and so on.

Tejashree Kulkarni, Sachin Kulkarni, Anjum Algur, M. H. Kolhar : Aimed to present study “Analysis and design of high rise

building by staad pro 2008” is to define proper technique for creating Geometry, cross sections for column and beam etc, developing

specification and supports conditions, types of Loads and load combinations. In this study a 30- storey high rise structure is analyzed

for seismic and wind load combination using staad pro 2008 and comparison is drawn

M C Griffith and A V Pinto have investigated the specific details of a 4-story, 3-bay reinforced concrete frame test structure with

unreinforced brick masonry (URM) infill walls with attention to their weaknesses with regards to seismic loading.

4. OVERVIEW OF SOFTWARE’S : 4.1. STAAD PRO :STAAD.Pro features a state-of-the-art user interface, visualization tools, powerful analysis and design engines

with advanced finite element and dynamic analysis capabilities

Easy user interface,

Confirmation with the Indian Standard Codes,

Versatile nature of solving any type of problem,

Accuracy of the solution.

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4.2. ETABS :ETABS can be effectively used in the analysis and design of building structures which might consists of structural

members like beams, columns, slabs, shear walls etc, With ETABS you can easily apply various construction materials to your

structural members like concrete, structural steel, Reinforced Concrete etc. ETABS automatically generates the self-weights and

the resultant gravity and lateral loads. ETABS also have much of the features.

User interface is model, simple and easy to use.

Modelling is quite easy and quick.

Easy application of loads in structures.

Advanced analysis tools.

5.METHODOLOGY: A research presents the main features and organization of STAADPRO and ETABS, a computer programs

that has been developed for the static and seismic stability evaluations of different civil engineering structures and concrete gravity

dams. Our project involves analysis and design of multi-storeyed building using a very popular designing software STAAD Pro

and ETABs against all possible loading conditions.

Calculation of loads as per Indian Standards.

Step by Step process of Methodology.

Analysis using StaadPro on multi-storied framed

Structure Design using StaadPro on multi-storied framed structure.

Following data used in the project: 1. Materials properties:

Steel: Modulus of elasticity of steel, E = 200 Gpa, Poisson’s ratio, µ = 0.3

Steel density = 77 Kn/m 3 (7.850 Kg/m 3 ) Yield strength of steel, Fy =500 Mpa

Ultimate yield strength of steel, Fu = 545 Mpa

Concrete: Characteristic strength of concrete, Fck = 25 Mpa (Beams),30 Mpa (columns).

Density of concrete, 25 = ߩ Kn/m 3

Building Parameters: Length and width =35mx37m

No of story =9

Story height=3m

Main Beam=750mmx600mm,230mmx500mm

Column =230mmx1050mm

Slab thick =125mm

Support condition =fixed

Beam release =axial force

Loading Conditions:

Dead Load: Dead Load =4.4Kn/m2

2 Main wall load =13Kn/m

2 Live Load: live load = 2Kn/m2

2 Sunken load=1.5Kn/m2

2 Seismic parameters: Code -IS 1893-2002 - Seismic analysis in X1 and X3 directions

. Self-weight =1.0

Damping ratio= 0.05 (5%)

Zone = III (0.16)

Soil type =Medium II




Importance factor =1.2

Response Reduction factor = 5

Time period (Ta) = 1.02 sec (calculate as per 1893:2002)

Wind intensity =30.66m for 1.617Kn/m

Fig:1.Deformed shape of the building in Etabs

Fig:2.Deformed shape of the building in StaadPro




Fig:3.Shear Force diagram in Etabs

Fig:4.Shear force diagram in StaadPro




Fig:5.Bending diagram in Etabs

Fig:6.Bending diagram in StaadPro




Table:1.Load comparison in Staad and Etabs

6.RESULTS & DISCUSSIONS:

Table:2.Comparision of Beams in Staad and Etabs:

SECTION STAAD ETABS

BENDING MOMENT 55.23 57.98

SHEAR FORCE 30.082 43.593

AREA OF STEEL 1200(TOP)

700(BOTTOM)

1091(TOP)

700(BOTTOM)

Table:3.Comparision of columns in Staad and Etabs:

SECTION STAAD ETABS

BENDING MOMENT 120.97 122.423

SHEAR FORCE 53.85 54.60

AREA OF STEEL 1579 1593

7.CONCLUSION:

Based on the behaviour of RCC frames on STAADPro. and ETABS some important conclusions are drawn:-

ETABS gave lesser area of required steel as compared to STAAD PRO.

Form the design results of columns, comparison of results for this case is not possible because of more Ast.

Axial forces calculated by Staad Pro are less to the axial forces calculated by etabs, so may adopt the analysis values for

the design purposes.

The analysis values in both software’s Staad Pro and ETABS are almost similar but design values are little differ and

uneconomical, so it’s better to adopt the analysis values for manual design to have a economical design.

8. References: D.Ramya, A.V.S.Sai Kumar : A comparative study on design of G+10 building by staadpro and etabs. The paper

focuses to conclude the effectiveness of use of a structure software between these two. They found that sometimes staadpro is good

for use but many times Etabs.

Tejashree Kulkarni, Sachin Kulkarni, Anjum Algur, M. H. Kolhar : Aimed to present study “Analysis and design of high rise

building by staad pro 2008” is to define proper technique for creating Geometry, cross sections for column and beam etc, developing

specification and supports conditions, types of Loads and load combinations. In this study a 30- storey high rise structure is analyzed

for seismic and wind load combination using staad pro 2008 and comparison is drawn.

Aman, Manjunath Nalwadgi, Vishal T, Gajendra : Aimed an Analysis and design of multi-storey building by using STAAD

Pro for the G+5 commercial building and shows short term deflection, structure is safe in shear and flexure, amount steel provided

is economic and so on.

M C Griffith and A V Pinto : Investigated the specific details of a 4-story, 3-bay reinforced concrete frame test structure with

unreinforced brick masonry (URM) infill walls with attention to their weaknesses with regards to seismic loading.

LOADING STAAD ETABS

DEAD LOAD 139250.3 139272.7

LIVE LOAD 46408.91 46408.91

EQX 3665.63 3738.03

EQY 3665.63 3738.03




AUTHOR’s PROFILE

KOLAGANI.NAVYA DEEPTHI: I completed my B.Tech under JNTUK(Chalapathi Institute of Technology), My

M.Tech

at Chalapathi Institute of Technology under JNTUK,Kakinada.

KOLLA. NAGA SRINIVASA RAO: He is professor in department of civil engineering at Chalapathi Institute

of Technology

with 28 years of teaching experience in engineering. He published many papers in various journals. His areas of

interest are Planning and Structural Analysis, Concrete Technology,Design of Steel Structures& Reinforced

ConcreteStructures.


Comparison of Design Results of Rcc (G+8 Storey) Building ... · Comparison of Design Results of...

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