ANALYSIS AND DESIGN OF MULTISTORIED EARTHQUAKE RESISTANT BUILDING. “G+25”

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 09 Issue: 02 | Feb 2022 www.irjet.net p-ISSN: 2395-0072
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ANALYSIS AND DESIGN OF MULTISTORIED EARTHQUAKE RESISTANT
BUILDING. “G+25”
Anjum Asfi1, Vikash Kumar Badal2,Dr. Alok Singh3
1M.Tech Scholler, CIT Ranchi, Cambridge Institute of Technology, Ranchi.
2,3Assistant Professor, Cambridge Institute of Technology, Ranchi.
------------------------------------------------------------------------***-----------------------------------------------------------------------
ABSTRACT - This research was carried out with an
objective to determine the design loads of a G+25
Multistoried building structure which is an earthquake
resistant structure. The purpose of this investigation is to
determine the design loads for a structure that will be
subjected to seismic loads in a specific area. It is well
knowledge that seismic loads can be estimated in a certain
zone using a zone factor. The seismic load of that zone can
then be calculated depending on the magnitude of the
earthquake and other characteristics unique to that region.
However, Earthquake load is stochastic and time dependent.
The structure should be constructed to meet the target
demand for the duration of its life. The main goals of
structural design are to create a structure that provides
total resonance while maintaining safety in terms of
strength, stability, and structural integrity, as well as
acceptable serviceability in terms of stiffness, longevity, and
cost.
Key Words – Analysis and Design, Earthquake
Resistant, Seismic Load, Stability, Stiffness, Staad Pro.
INTRODUCTION –
Seismic design for high-rise buildings has grown
increasingly essential in recent years. For structures of
small height subjected to low-intensity earthquakes,
traditional methods based on the fundamental mode of the
structure and the distribution of earthquake forces as
static forces at various stories may be sufficient, but as the
number of stories increases, seismic design becomes more
rigorous.
A design for a R.C.C building with a G+25 storey frame is
being considered. The design is done with structural
analysis design software (staad-pro). The structure was
subjected to vertical as well as horizontal loads. The dead
load of structural components such as beams, columns,
and slabs, as well as living loads, make up the vertical load.
The seismic forces make up the horizontal load, hence
buildings are constructed for dead load, live load, and
seismic load, according to IS 1893 - 2016. The structure is
constructed as a two-dimensional vertical frame that is
trial-and-error assessed for maximum and minimum
bending moments and shear forces in accordance with IS
456-2000. The assistance is provided via software
available at the institute, which allows for the computation
of loads, moments, and shear forces.
OBJECTIVES - The project's major goal is to improve
knowledge of multistory RCC building structural design
and architectural works. This project teaches us how to
examine field difficulties and how to arrive at a reasonable
solution, as well as refresh our knowledge of structural
member design. Working in a real-world setting improves
theoretical and practical knowledge, as well as confidence,
which will be useful in professional activity in the near
future.
The following are the precise objectives of the project's
work:
1. Identification of the plan's structural organization.
2. Determination of criticality and vulnerability in seismic
performance.
3. Research into seismic codal provisions.
4. Use of Staad Pro to model the building for structural
analysis.
5. Components are designed in sections.
6. Structural detailing for members.
LITERATURE SURVEY
1. Vikrant Trivedi.et.el; (2018): This research compares
wind loads in order to determine the design loads of a
G+11 structure. The purpose of this investigation is to
determine the design loads for a structure that is exposed
to wind loads in a specific area. It is well knowledge that
the wind load in a specific zone can be approximated using
a zone factor. The wind load of that zone can then be
calculated using the fundamental wind speed and other
elements unique to that region. The wind velocity, on the
other hand, is stochastic and time dependent. A multistory

building is examined for wind loads using IS code 875 in
this study, and the findings are compared between with
and without wind load.
2. MB Vikram.et.al;(2017): Structural analysis is primarily
concerned with determining how a structure behaves
when it is subjected to some action. Using the ETABS
software, a residential (G+5) multi-story building is
investigated for seismic loads. The linear static ana is done
assuming that the material property is true. These linear
static assessments take into account four seismic zones
(zone II, zone III, zone IV, and zone V), and the behaviour is
evaluated using Type II soil conditions. The reactions of
various load combinations and zones, such as bending
moment and axial forces, are investigated. The bending
moment and axial force are also affected by the T seismic
load.
3. Aman.et.al;(2016): The fundamental goal of a structural
engineer is to build a structure for safe computer
technology; structural engineers can handle much larger
and more sophisticated structures that are subjected to
many types of loading conditions. Previously, the loads
acting on the structure were regarded static, but strictly
speaking, no structure load is static, with the exception of
self-weight (dead load). Today, a great variety of
application software is accessible in the civil engineering
sector. All of these programmes are built on a foundation
of superior technology. Finite element analysis, which
takes into account the effects of dynamic loads like as
wind, earthquakes, and other natural disasters. An attempt
was made in the previous work to investigate the efficacy
of particular civil engineering application software. An
ongoing project has been chosen for this purpose. This
initiative is part of the Gulbarga City's Unity Builders
programme. The project's name is Bharat Pride.
4. Ms. Priyanka Soni.et.al. ;(2016): Ms. Priyanka Studied on
Shear walls are structural systems that protect structures
from lateral loads such as wind and earthquakes. These
structural systems are made of reinforced concrete,
plywood/timber unreinforced masonry, and reinforced
masonry at the locations where these systems are made of
reinforced concrete, plywood staggered walls. The current
paper was written with the goal of studying and analyzing
numerous research projects involving the enhancement of
shear w and their behavior when subjected to lateral loads.
Shear walls withstand substantial lateral stresses in the
lower half of the building, while the frame supports lateral
loads in the higher portion, making soft storey high rise
buildings ideal. In India, similar structures have been
created. As in India, the lower floors are utilised for
parking and garages, while the top floors are used for
residences.
5. Varikuppala Krishna, Chandrashekar.et.al; (2015
Structural Engineers face the difficult task of achieving the
most efficient and cost-effective design while ensuring that
the final design of a building is functional for its intended
function during its design life & ndash; period. T project is
an RCC framed structure with (parking floor +5) upper
floors that was assessed and planned using ETABS to
account for the lateral loading impacts of wind and
earthquake (Extended Three Dimensional Analysis of
Building system). ETABS is a software that includes all of
the primary analysis engines, such as static, dynamic, Lin,
and non & ndash:linear, and it is used to analyse and
design structures. Buildings can be represented as per the
arrangement of t members of the project in practise thanks
to the features offered in this software modelling stage,
and this programme treats beam columns as line
members; slabs, Ramps/staircases, and walls as area
members. Considering the effects of wind and seismic
forces on horizontal loading; In the d of this project, I
consider dynamic loading in addition to static loading and
Liv loads as per IS code; and practically all of the project's
members may be ana and designed as per Indian code
using this software, with the members utilising excel
sheets that I generate during this phase.
6. K. Rama Raju et al., 2013; For tall structure behaviour to
be determined, site-specific lateral loading due to wind or
earthquake stresses, as well as vertical gravity loads, must
be taken into account. The amount of structural material
required to resist lateral loads increases dramatically as a
building's height increases. To securely carry gravity and
lateral loads, tall building design entails a conceptual de
approximate analysis, preliminary design, and
optimization. Strength, serviceability, and human comfort
are the design criteria. The structural engineer's goal is to
come up with appropriate structural plans that meet these
criteria. The limit technique of analysis and design of a
3B+G+40-story reinforced concrete high rise building
under wind and seismic loads is given in this work,
according to IS rules of practise. Allowable limitations for
base shear, roof displacements, inter-story drifts,
accelerations defined in codes of practise, and other
relevant references in literature on the effects of
earthquake and wind loads on buildings are verified to
ensure the structure's safety.
METHODOLOGY
This project is primarily software-based, and it is essential
to understand the specifics of these software.
 Modelling of Frame:
G+25 Residential Building

Modelling of Frame In Staad Pro
 Loading in Structure: Dead Load, Live Load, and
Seismic Load.
Loading Applied on Building Frame
Following Load Combinations are adopted
i. 1.5 Dead Load + 1.5 Live Load
ii. 1.2 Dead Load + 1.2 Live Load + 1.2 EQx
iii. 1.2 Dead Load + 1.2 Live Load - 1.2 EQx
iv. 1.2 Dead Load + 1.2 Live Load + 1.2 EQz
v. 1.2 Dead Load + 1.2 Live Load -1.2 EQz
Analysis and Design: Analysis of RCC Framed structure,
Analysis for Shear Force and Bending Moments has been
done using Staad Pro.
STAAD PRO can determine the amount of reinforcement
required for any concrete segment. The programme
includes a number of parameters that are designed in
accordance with IS: 456. (2000). Flexure, shear, and
torsion are all designed into beams.
3D Rendered View of Building
Diagram for Shear force
Diagram for Bending Moment
Results and Discussion
The maximum shear force at X- Direction is found at
column no 597 Which is located at the basement floor of
the building for the combination load having value of
44300.758 KN. The maximum shear force at Y- Direction is
found at beam no 1561 Which is located at the Ninth floor
of the building for the combination load having value of
548.970 KN. The maximum shear force at Z- Direction is
found at column no 241 Which is located at the Twenty
Fifth floor of the building for the combination load having
value of 500.131 KN. The maximum bending Moment
developed in X- Direction is found at column no 1111
Which is located at the Fifth floor of the building for the
combination load having value of 38.710 KNm. The
maximum bending Moment developed in Y- Direction is
found at column no 840 Which is located at the basement

floor of the building for the combination load having value
of 2536.531 KNm. The maximum bending Moment
developed in Z- Direction is found at column no 598 Which
is located at the basement floor of the building for the
combination load having value of 5111.416 KNm.
Table for maximum Shear Force
Table for Maximum bending Moments.
Using Concrete Grade of M30 and Reinforcement Steel
Fe550.
The Safe size of the beam along X direction is 300mm x
500mm and along Z – direction is 350mmx650mm at all
levels of the building. Minimum percentage of steel is 0.2%
and Maximum percentage of steel is 4.0% is used in all
beams.
The safe Size of the interior column at the foundation level
is 1300mm x 1300mm.
The safe Size of the exterior column at the foundation level
is 1200mm x 1200mm.
The safe Size of the Interior and Exterior column from
Ground level to Fifth Floor Level is 1200mm x 1200mm.
Sixth Floor level to Tenth Floor Level is 1000mm x 1000
mm.
Eleventh Floor level to Fifteenth Floor Level is 1000mm x
750mm.
Sixteenth Floor level to Twentieth Floor Level is 1000mm
x 600mm.
Eleventh Floor level to Fifteenth Floor Level is 750mm x
500mm.
Minimum percentage of steel is 0.4% and Maximum
percentage of steel is 6.0% is used in all columns.
Conclusion
A multi-story residential building with a G+25 storey was
researched, assessed, and designed. It's a G+25-story
building with parking on the ground floor and apartments
on the upper levels. All of the structural components were
designed and detailed using AutoCAD. The analysis and
design were conducted using STAAD and conventional
criteria. This is the greatest option for both static and
dynamic loads. The size of the structural members are
calculated, and loads such as dead, live, and seismic loads
are applied. Deflection and shear tests are performed on
beams, columns, and slabs. The tests turned out to be
completely risk-free. Both theoretical and practical work
has been completed.
 The Structural members beams and column of the
buildings are are safe in shear, flexure and
deflection of horizontal members are within
20mm.
 The steel provided in the structure is economical
and as per IS Codes.
 The size of the structural members obtained from
STAAD can be used in construction.
Future Scope:
Staad Pro is used to analyse tall buildings under seismic
load. I discovered that with this software, the design of tall
and complex structures can be done with maximum
accuracy, and that while designing, we should aim to limit
the structure's self-load by using light weight,
environmentally friendly materials such as ACC Block. As
high grade of concrete is necessary to acquire the strength
as well as the compaction of concrete is vital component
for which Self Compacting Concrete is suggested to avoid
any form of Honeycomb and blowholes.

References:
1) IS 1893-2002 and IS 1893- 2016, “Criteria for
Earthquake resistant Design of structure
Structures” Bureau of Indian Standards, New Delhi
2016.
2) IS 456:2000 “Plain and Reinforced Concrete Code
of Practice” Bureau of Indian Standards, New
Delhi 2000.
3) IS 875 (Part1, Part2, Part3): 1987, “Code of
practice for design loads for building and
structures” Bureau of Indian Standards, New Delhi
1989.
4) Anoop.A Fousia Hussain, Neerja.R Rahul Chandran
“ Planning analysis and Design of Multistoried
Building by Staad Pro”, International Journal Of
Scientific & Engineering Research, Volume 7
Issue4,ISSN 2229-5518, April 2016.
5) Borugadda Raju, Mr R Rattaiah “ Analysis and
Design of High Rise Building (G+30) Using Staad
Pro” International Journal Of Research science
and Advanced Engineering, Volume 2, Issue 12,
PP:50-54, OCT -DEC”2015.
6) Aman, Manjunath Nalwadgi, Vishal T, Gajendra
Rao, “ Analysis and Design of Multistory Building
using Staad Pro”, International research Journal Of
Engineering and Technology (IRJET), Volume 03,
Issue :06 e-ISSn: 2395-0056, PISSN:2395-0072,
June 2016.
7) Pauley, T. and M.J.N. Priestley, (1991) “Seismic
Design of Reinforced Concrete and Masonry
Buildings”. John Wiley & Sons, Inc.455-824
8) Ghosh K.S.,Munshi J.A. (1998), “Analyses of
seismic performance of a code designed
reinforced concrete building”, Engineering
Structures, Vol 20,No.7, pp.608-616.

ANALYSIS AND DESIGN OF MULTISTORIED EARTHQUAKE RESISTANT BUILDING. “G+25”

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