Analysis of High Rise Multistoried Building With and without Shear Wall By Response Spectrum Method

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 09 Issue: 08 | Aug 2022 www.irjet.net p-ISSN: 2395-0072
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Analysis of High Rise Multistoried Building With and without Shear
Wall By Response Spectrum Method
Abhishek Yadav 1, Prince Yadav 2
1PG Student (MTech. Structural Eng.), Civil Engineering Department, Institute of Engineering and Technology,
Lucknow
2Assistant Professor, Civil Engineering Department, Institute of Engineering and Technology, Lucknow
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Abstract - Structural engineers are primarily concerned
with determining how a structure behaves when subjected to
horizontal forces, and appropriate stiffness is essential for
high-rise buildings to withstand horizontal forces caused by
wind and earthquakes. Shear walls, which are added to the
inside of the proposed building, are used to combat horizontal
forces, such as lateral stresses created by earthquakes, and to
offer greater stiffness to the structure. This work uses
Response Spectrum Analysis to investigate the use of with and
without Shear walls at various positions in a G + 15 multi-
story residential building, as wellasthenatureofthestructure
exposed to earthquakes. Storey drift, storey displacement,
storey pressures, storey response, storey shear, and storey
stiffness are investigated in a multi-story building with G +15.
The whole structure is analysed and modelled using the
software ETABs 2016 in seismic zone 3 for a regularstructure,
and it is concluded that the structure with symmetrically
positioned shear walls will perform better in terms of all
seismic parameters than the constructions without shear
walls.
Key Words: Shear wall, ResponseSpectrum, SeismicAnalysis,
Storey Drift
1. INTRODUCTION
Earthquake is a natural terrible calamity that results from a
rapid release of energy beneath the earth's surface. It is
considered one of the greatest natural disasters since it
causes a portion of the earth's surface to shake up, as well as
all manufactured items, living and non-living creatureson it.
The vibrations are caused by the energy emitted and are
caused by internal and external substances within the
surface, resulting in loss of life and structural damage.
Earthquakes can have a wide range of intensities and
magnitudes, so it's critical to look into the seismic behaviour
of RC structures for various functions such as base shear,
displacements, and so on. A dynamic analysis should be
carried out to figure out the maximal reaction to a base
excitation in order to make a structure safe and research its
nature during earthquakes. When a structure is subjectedto
quake shaking, shear walls are created to counteract the
consequences of lateral loads and toprovidetheappropriate
strength and stiffness. When compared to all other lateral
force resisting methods, shear walls are the most effective,
especially for tall buildings and lift situations
2. WHAT EXACTLY IS SHEAR WALL?
Shear walls, which can be created as verticallyorientedwide
beams in a reinforced concrete framed structure,areused to
mitigate the effects of lateral loads operating on buildings.
These are given in addition to slabs, beams, andcolumnsina
structure, and they providetherequiredrigidity,particularly
in residential constructions, and they serve as a case in a
structure. Shear walls have been widely used in mid- and
high-rise structures duringthepasttwodecades.Shearwalls
are extremely significant in buildings, particularly tall ones,
because they are particularly vulnerable to lateral loads and
seismic pressures
3. OBJECTIVE OF THE STUDY
1.To examine the behaviour of multi-story buildings with
and without shear walls, as well as the results for the
seismic zone 4 analysis.
2.To determine the shear wall's position so that it can
efficiently resist lateral loads.
3. By performing dynamic analysis, the structure was
analysed in terms of base shear, displacements, drifts,
storey stiffness, and storey forces, by modifying the
stiffness of the structure along its height in different
seismic zones of India
4. METHODOLOGY AND PARAMETERS
The flow chart explains the full approach. In this research
paper, Regular shape Structureisconsideredandisshownin
figure 1 with shear wall and without Shear wall. The G+15
high-rise building, with a length of 46.1 m, is used in this
analysis. G+15 stories with typical storey height of 3 m with
bottom height of 4.1 m. Fixed type of Support conditions ofa
specific type are taken into account

Fig-1: Methodology
Table -1: Details and Dimensions of Multistorey Building
Model
Table -2: Load Calculation:
Fig-2: Plan of Building Without Shear wall
Fig-3: Plan of Building With Shear wall
5. MODELLING:
The figures below show a floor plan anda three-dimensional
image of a building. ETABS software is used to model and
analyse the complete structure. All models are analysed for
gravity loads and lateral loads (Seismic and Wind) with
various load combinations. Boththegravityandlateral loads
are calculated in accordance with Indianstandards.Defining
of property: The material Attribute was firstdefined. Wecan
add additional materials to our structural components by
assigning the necessary details in defining (beams,Columns,
and slabs.) After the Defining of all the property now we
have to assign the property step by step.
Fig-4: Floor Plan & 3D Building View
Title Specification
Beam Size 300*500 mm
Column Size 600*600 mm
Slab Thickness 150 mm
Thickness of Shear Wall 200 mm
Concrete Grade M30
Steel And Rebar HYSD415
Floor to Floor Height 3 m
Type of Load Calculation
Wall Load 6.8 kN/m
Live Load 5 kN/m
Seismic Load AS per IS 1893:2016

Fig-5: Floor Plan & 3D Building
6. Analysis And Design Check:
The constraints are drawnandshowninthefollowingfigures
after analysing all structures in the ETABS. The load
combinations are selected from all the load combinations
analysed are 1.2(DL + LL + EQX) , 1.2(DL + LL + EQY),
1.2(DL+LL+ WLX) , and 1.2(DL+LL+WLY).
Fig-6: Building with Shear wall
Fig-7: Building without Shear wall
7. Result and Discussions:
In this paper building having shear wall and without Shear
wall are analaysis with help of ETABs Software.Allthemodel
are analysis in the seismic zone 4. By usingtheanalysisresult
various graphs are plotted and compare with the different
parameters. Following results are drwan in this paper .
Storey Drift , Story Forces,Storey Stiffness.
7.1 Story Drift:
In this graph Shows the compression between the building
having shear wall and without shear wall in Eathquake in X
Direction . In the paper WSW stands for With shear wall and
WOSW stands for without Shear wall .
Below the shows the variation of storey drift with storey no.
in Earthquake in X &Y direction for the building having shear
wall and without shear wall.
Fig-8: Storey Drift for EQ in X Direction

Fig-9: Storey Drift For EQ In Y Direction
Fig-10: Response Spectrum In X Direction
Fig-11: Response Spectrum In Y Direction
7.4 Stiffness:
The lateral force causing unit translational lateral
deformation in thatstoreyisestimatedasthestoreystiffness,
with the bottom of the storey prevented from moving
laterally, i.e., only translational motion of the bottom of the
storey is constrained while itis freetorotate.ASshowninthe
graphs Storey Stiffness between the building having shear
wall (WSW) and without shear wall (WOSW) in X and Y
Direction. Graphs shows the variation between them.
Fig-12: Storey Stiffness in X direction
Fig-13: Storey Stiffness in Y Direction
7.5 Storey Shear:
As the graphs shows below that the storeyShearismaximum
at the first storey and minimum at the top of the building in
both building having having shearwallandwithouttheshear
wall which is permissible under IS code.
Fig-14: Storey Shear in X Direction

Fig-15: Storey Shear in Y Direction
8. Conclusion:
 Two different buildings are considered with shear wall
and without shear wall shapes evaluated for study in
ETABS, by the method of Response Spectrum namely I-
shaped, shear wall are used in building.
 There has been a decrease in lateral displacement and
storey drift for the two distinct types of buildings
investigated, i.e. G+15. structures with shear walls vs.
regular buildings Shear walls are not embedded in RC
structures.
 The parameterstoreystiffnesshasasignificantimpacton
earthquake incidence, and it is shown to be greater for
G+15 storey buildings with an I-shaped shear wall. In
compared to structures without shear walls, shear wall
performs better.
 Wind does not dominate the analysis in zone 4 and has
no effect on the results, indicatingthatwindplaysnorole
in the building analysis in zone 4.
REFERENCES
[1] IS 13920, "Code of Practice for Ductile Detailing of
Reinforced Concrete Structures SubjectedtoSeismic
Forces," was published in 1993.
[2] Building loading standards: IS 875(part 1-5)-codeof
practise for structural safety
[3] Richa Gupta, Alfiabano “Performance Evaluation of
Various Shapes of Shear Wall using Response
Spectrum Analysis.” 2019
[4] Nikhil Pandey “Stability Analysis Of Shear Wall At
Different Locations In Multi-Storeyed Geometrically
Irregular Building Using ETABS”2021
[5] Karnati Vijetha, DR. B. Panduranga Rao –
“Comparative Study of Shear wall and Bracing for a
Multistoried structure under sesmic loading.”
[6] Hahzad Jamil Sardar and Umesh.N.Karadi, ”Effect of
change in shear wall location on storey drift of
multistory building subjected to lateral loads”,
International JoInnovativeResearchin Science,ISSN:
2319-8753, Vol.2, September 2013, pp 4241-4249J.
Ruiz-García, “Issues on the Response of Existing
Buildings Under Mainshock-Aftershock Seismic
Sequences.”

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