1. GLOBAL JOURNAL OF MULTIDISCIPLINARY STUDIES ISSN: - 2348-0459
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EARTHQUAKE ANALYSIS OF G+13MULTI-STOREY BUILDING WITH RESPONSE SPECTRUM
METHOD USING E-TABS
Siddharth Jain,
1
Currently Pursuing Master Degree Program in Structural Engineering in Gyan Ganga Institute of Technology &
Sciences Jabalpur, RGPV University Bhopal, India
Prof. Vijay Kumar Shrivastava,
2
Asst.Prof. Department of Civil Engineering in Gyan Ganga Institute of Technology & Sciences, Jabalpur
Prof. Yogesh Kumar Bajpai
3
HOD, Department of Civil Engineering Gyan Ganga Institute of Technology & Sciences , Jabalpur
Abstract— This paper explain the importance of shear wall frame structures in multi-storey building over bare frame structures.
In this work seismic analysis is presented with two cases first one is bare frame structures and second one is shear wall structure.
In this work a unsymmetrical plan is selected for seismic analysis in ZONE-III. This analysis produce the results such as
maximum lateral displacements, storey drift index and time period. The analysis is completely done by response spectrum
method using E-TABS 9.7.4 software packages.
Keywords— High rise building, Seismic analysis, Response spectrum method, Lateral displacements, Storey drift index, Time
period, Frequenc
I. INTRODUCTION
Shear walls are the structures which resists the lateral forces
such as wind and earthquake forces. When a shear wall-
frame structure is subjected to lateral loads, the different
free deflected forms of the walls and the frame cause them
to interact horizontally through the floor, slabs
consequently, the individual distribution of lateral loading
on the wall and the frame may be very different from the
distribution of lateral loading.
This paper represents the analysis of G+13-storey building
in zone –III , which is analysed by response spectrum
method using E-Tabs sowtware packages.This analysis
gives the comparative results between an unsymmetrical
planned building with and without shear wall. This analysis
gives comparison between different parameters such as –
maximum displacements , storey drift index, Time period
and Frequency.
II. PROBLEM FORMULATION
Details of size and geometry of various structural
components for both framing are shown in table no.1.1
Table-1.1
Sr.
No.
Structural Data Property
1 Concrete Grade M30
2 Type OF Material Isotropic
3
Mass Per Unit
Volume 2.5KN/m3
4
Modulus of
Elasticity 27 KN/m3
5 Poission's Ratio 0.2
6 Concret Strength 30 Mpa
7 Wall Thickness 200 mm
8
R C wall above door
in structural wall
system 200mmx900 mm
9 Slab Thickness 125 mm
10
Sunk Slab
Thickness 145 mm
11 Stair Slab Thickness 150 mm
12
Tensile
Reinforcement 500
13
Shear
Reinforcement 500
14 Number of Stories G+13
15 Depth of Foundation 2m
16 Storey Height 3m
17
Beam size in
Conventional
system (B1)
200mmx600 mm

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III. METHODOLOGY
(i). The complete analysis is done on E-tabs software
packages.
(ii). In this software a centerline drawing of plan which is
drawn on auto cad and imported in ETABS.
(iii). After the gridlines are made for different co-ordinates
system boundary conditions are assigned on the nodes.
(iv). Giving material properties for concrete and steel for
different beam column sections.
(v). Defining seismic parameters as stated in problem
formulation.
(vi). Defining Response Spectrum parameters as per seismic
consideration.
(vii). There are two models are used for the analysis as
shown below–
MODEL-1 BARE FRAME STRUCTURE
MODEL-2 SHEAR WALL STRUCTURE
Figure 1.1 MODEL-1 floor plan of Bare Frame
Structure
Table-1.2
Seismic , Wind , Dead,
Live Loading Parameters
Sr.
No.
Parameter Value
1
Seismic coefficient as per
IS :1893-2000
Seismic zone III
Seismic Zone Factor 0.16
Soil Type
II
(Medium)
Importance Factor (I) 1
Response Reduction Factor 3
2 Dead Load
SDL (Super imposed dead
load)on all Slabs 1.5 KN/m2
SDL (Super imposed dead
load) on sunk & Stair case 4 KN/m2
3 Live Load
Live Load on Slab or FLoors 2 KN/m2
Live Load on Sunk Slab,
Stair Slab
2 KN/m2
4. Thickness of shear wall 0.2m

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Figure 1.2 3D Model of G+13 Storied
Conventional Beam Column System Building. Figure 1.3 3D Model of G+13 Storied RC
Structural Wall System Building.

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Figure 1.4 MODEL-2 l floor plan showing Structure
having shear wall
-
Figure 1.5 l floor plan showing Dimensions of the
structures

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IV. RESULTS AND DISCUSSIONS
1. After the analysis following results obtained –(i)
Lateral Displacement (ii) Storey Drift Index (iii)
Time period and natural frequency.
2. Table shows the results of different parameters
such as lateral displacement and storey drift index .
Table-1.3
3. Comparative analysis of maximum lateral
displacements.
Figure1.6
4. Comparative analysis of storey drift index.
Figure-1.7
5. Generally first three fundamental modes are
considered(according to IS 1893(part-1):2002) for
consideration and corresponding natural period.
Table-1.4 shows the time period and natural
frequency of first 3 fundamental modes.
Table-1.4
MODE
NUMBE
R
MODEL-1 MODEL-2
PERIOD
(TIME)
FREQUENCY
(CYCLES/TIM
E)
PERIOD
(TIME)
FREQUENCY
(CYCLES/TIM
E)
Mode 1 4.69875 0.21282 0.36521 2.73818
Mode 2 3.39534 0.29452 0.24933 4.01071
Mode 3 2.7739 0.3605 0.18149 5.51009
6. STOREY SHEAR.
Table 1.7 Shows variation of storey shear for both
the type of system.
Table 1.4 Storey No. and Storey Shear
COMPARATIVE RESULTS OF OF DIFFERENT MODELS
SUBJECTED TO EARTHQUAKE FORCES
S.NO.
MODEL
NO.
MODE
L
TYPE
MAXIMUM
DISPLACE
MENT AT
TOP IN mm
STOREY
DRIFT
INDEX AT
TOP
1
MODEL-
1
BARE
FRAM
E
16.1 0.00325733
2
MODEL-
2
SHEAR
WALL
STRUC
TURE
0.9 0.00005065

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Fig. 1.8
V. CONCLUSION
1.The maximum lateral displacement at top in the case of
bare frame structure is about 94% greater than shear wall
structure.
2.At top of bare frame structure system is having about
90% greater storey drift index than shear wall system.
3.All the values of storey drift index is in safe limit
according to IS 1893(part-1)-2002.
4. The time period for bare frame is greater than to shear
wall structure. Difference in both the system time period is
about 92.22%.
5.Natural frequency of shear wall structure is 93% greater
than to bare frame structure.
6.From the above results it is obtained that shear wall
structures are more safe compare with bare frame in the case
of worst loading.
7.As shown from the result base shear value of shear wall
system is less than beam column frame (bare frame)
structure.
REFERENCES
1.IS 1893(part-1) – 2002, ― Indian standard criteria of
practice for Earthquake Resistant Design of Structures‖,
Bureau of Indian Standards, New Delhi,India.
2.Bryan Stafford Smith and Alex Coull ― Tall Building
Structures: Analysis and Design‖ 2011 Reprint Edition ,
Wiley India Pvt. Ltd.
3.Pankaj Agrawal & Manish Shrikhande ― Earthquake
Resistant Design of Structures‖ 11th
Edition ,PHI Learning
Private Limited Delhi-110092 2013.
Storey
Storey Shear (KN)
Beam coloumn system
RC Structural Wall
System
13 1139.78 517.78
12 1171.04 527.95
11 2171.18 1229.82
10 3015.05 1829.98
9 3749.52 2338.58
8 4296.48 2735.29
7 4780.92 3060.81
6 5109.09 3284.58
5 5359.12 3467.68
4 5546.65 3589.57
3 5624.79 3671.12
2 5687.29 3701.64
1 5718.29 3752.5
0 5765.43 3732.16

7. GLOBAL JOURNAL OF MULTIDISCIPLINARY STUDIES ISSN: - 2348-0459
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Volume-5, Issue-4, March- 2016 Impact Factor: 2.389
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4.Anil k. Chopra ―Dynamics of Structures – Theory and
Applications to Earthquake Engineering‖ 3rd
Edition
Pearson Publishers.
5.N.B. Baraskar, Prof. U.R. Kawade, ― Strucutral
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Interntional Journal of Engineering Research and General
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Analysis of Multi-Storey Structure with different Location
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Method.‖ International Journal of Emerging Technology
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309-318.
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R.C.C. Buildings With and Without Shear walls‖
International Journal of engineering Sciences & Research
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R.C.C Building‖ Interntional Journal of Modern
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1428-1434.
9.Prof. S.S. Patil, Miss. S.A. Ghadge, Prof. C.G. Konapure,
Prof. Mrs. C.A. Ghadge ― Seismic Analysis of High-Rise
Building by Response Spectrum Method‖
International Journal of Computational Engineering
Research, Vol.3, 2013 Pages 272-279
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Solution of Shear Wall Location in Multi-Storey Building‖
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