Upload
others
View
4
Download
0
Embed Size (px)
Citation preview
IJSRD - International Journal for Scientific Research & Development| Vol. 7, Issue 03, 2019 | ISSN (online): 2321-0613
All rights reserved by www.ijsrd.com 688
Design and Analysis of Residential Multistory Building (G+5) by using
ETABS
Mr. Kundan Kulbhushan1 Swatantra Kumar Rao2
1,2Department of Civil Engineering 1,2Maharishi University of Information & Technology Lucknow, India
Abstract— The layout method of structural planning and
layout requires no longer simplest creativeness and
conceptual wondering but additionally sound understanding
of science of structural engineering besides the information
of Practical", which includes latest design codes bye legal
guidelines subsidized up with the aid of sufficient experience,
intuition and judgments.". The purpose of standards is to
ensure and enhance the safety, keeping careful balance
between economy and safety. In the present study multistory
residential building in luck now India is designed (slab, beam,
column, floor, wall, footings) using AutoCAD, E-tab,
software. Find the stress analysis in slab, shear force for
beam, lateral load, axial load, longitudinal load, seismic or
wind and area reinforcement for the column and stair case,
lift in these different force are acting and analysis and design,
depending upon the reaction and height of the foundation
level depend upon the site safe bearing capacity of the soil
"because of balance motive designed the preserving wall on
this task.. In order to design them ,it is important to first
obtain the plan of the particular building that is , positioning
of particular room ( Drawing room, bed room, kitchen, wash
room, balcony , stair case and lift etc. ) Such that they serve
their respective motive and additionally suiting to the
requirement and comfort of the inhabitant."Such that they
serve their respective motive and additionally suiting to the
requirement and comfort of the inhabitant.” There by
depending on the suitability, plan layout of beam and the
position of column are fixed. Thereafter, the loads are
calculated namely the dead loads, which depend on the unit
weight of the materials used concrete and steel and brick and
live loads. Footings are design based on the safe bearing
capacity of soil. For designing of column and beam, It is
necessary to know the moment they are subjected to, one-
way, two- way slab the end condition and the loading. From
the slab, the loads are transferred to the them. Thereafter, the
loads (mainly shear) from the beam are taken by the columns.
Finally, the section must be checked and analyze for the entire
four component with regard to strength and service ability.
Key words: AutoCAD, STAAD Pro, E-Tab, Beam, Column,
Wall, Slabs, Footing, Structural Designing
I. INTRODUCTION
ETAB are generally uses for analysis and design for building
system. ETAB feature are contain powerful graphical
interface coupled with unmatched modeling, analytical, and
design procedures, all integrated using a common database. It
is quick and very easy for structure. It can handle the largest
and complex building models. ETAB (Extended three
dimensional analysis of building system) is software which is
incorporated with all the major analysis engines that is static,
dynamic, linear and non-linear, etc. and especially this
software is used to analyze and design the building.This
program has been thoroughly tested and used in using the
program. However, the entire user accepts and understands
that no warranty is expressed by the developers or the
distributors on the accuracy or the reliability of the program.
This program is a very useful tool for the design check of
concrete structures.
ETAB is the present time leading design software in
the market. Many design company’s use this software for
their project design purpose. So, this paper deals with the
mainly analysis of the results obtained from the analysis of a
multistory building structure when analysis and design and
using ETAB software.
Structural response to earthquake depend on
dynamic symptoms of the structures and intensity, duration
and frequency are existing ground motion. "Structural
analysis method willpower of the general form and all of the
particular dimensions of a particular shape so that it carry out
the function for which it is creates and" will safety withstand
the influences which will act on it throughout its useful
life.The effective design and construction of a earthquake
resistant structures have great important all over the world.
This project present analysis and design if multistory
residential building as per INDIAN CODES- IS 1893-
part2:2002, IS 456:2000.and use national building codes. The
analysis is carried out by considering seismic zones and
behavior is assessed by taking type-III Soil condition. In our
project we are considering a plan under zone-III .Seismic
intensity is severe and zone factor is 0.16 at Luck now. can
design of steel and concrete frame, composite beam and
column, steel joints, and concrete and masonry shear wall,
comprehensive and customizable reports are available for all
analysis and design output, and schematic construction
drawings of framing plans, schedules, details, and cross-
section may be generated for concrete and steel structure
ETAB. ETAB contain every aspect of the engineering design
process. The creation of models has never been easy – The
AUTOCAD drawings can be converted directly into ETAB
model & can easily analysis and design of building.
Objective
The main objective of the project are:
The objective of the this project is to analysis, check and
design of the wind effect and seismic response of multi-
story residential building using E-tab.
Another objective is to analysis of force , stress, strain,
bending moment, and deformation or deflection for a
complex building structure .
To make the building earthquake resistant against
seismic effect or wind effect.
To analysis story drift , displacement, shear, story,
stiffness model period and frequency of the different
storey building.
Applying gravity loads and different load combination as
per Indian codal provision and using building bye laws.
Design and Analysis of Residential Multistory Building (G+5) by using ETABS
(IJSRD/Vol. 7/Issue 03/2019/177)
All rights reserved by www.ijsrd.com 689
Scope
The main scope of study analyzing and design of multistory
residential building.
It is necessary to analyze and design the multistoried
building to ensure safety against seismic force and avoid
it from collapsing.
By doing this project we will come to know some
software of civil engineering related to design and
analysis of structure like ETAB and AutoCAD.
Analyze the behavior of building under the influence of
lateral loads.
Effect Statement:
The high rise buildings now-a- days are provided with soft
storey for parking purpose. When such building is located in
the earthquake prone area, can be subjected to heavy lateral
forces. Due to the presence of soft story in a building, the
lateral load resisting capacity of building decreases, thereby
the stiffness of building decreases. This leads to sudden
failure of structure. To increase the lateral strength and
stiffness of a structure, shear wall are introduced in a
structure, such that the building can sustain under the seismic
loads.
II. REVIEW OF LITERATURE
ABHAY GULERIA (2014):
Present the analysis of the multistoried building using ETAB
reflected that the story overturning moment varies inversely
with story height. Moreover, L- shape, I- shape type building
give almost similar response against the overturning moment.
Story drift displacement increasing with storey height up to
6th storey reaching to maximum valve and then started
decreasing. From dynamic analysis, mode shapes are
generated and it can be concluded that asymmetrical plans
undergo more deformation than symmetrical plans.
Asymmetrical plan should be adopted considering into gap.
SONIA LONGJAM et.al (2014):
Publisher the paper that presents the plan, model, analyze and
design of a vertical irregular shopping building structure of (
G+ 10) storey and investigate its performance under various
lateral loading conditions. The main goal is to assess current
Indian standard design practice and to provide design
guidelines using ETAB , presents the manual design
calculation satisfying the necessary requirements as per BIS
specification as well various Indian standard code
specification
D. RAMYA AND A.V.S SAI KUMAR (2015):
Principal objective of the project is comparative study on
design and analysis of multistoried building (G+10) by
STAAD pro and ETAB software. STAAD pro is one the
leading software for the design of structure. ( G+10) building
is analyzed for finding the shear forces, bending moments,
deflections & reinforcement details for the structural
components of the building ( such as beam, column & slabs)
to develop the economic design. ETABS is also a leading
design software in present days used by many structural
designers." "Analyzed the identical shape the use of ETABS
software for the layout.. finally, an attempt to define the
economical section of ( G+10) multistoried building using
both STAAD pro and ETABS comparatively, by the intensive
study come to know that the Reasonably-priced section “
turned into developed the use of ETAB software program.
B.ANJANEYULU et.al ( 2016 ): studies the analysis and
design of flat slab by using ETABS software, concludes that
flat plate/slab can be design and built either by conventional
reinforced concrete or post tensioning. However, due to
issues mentioned above with post-tensioning construction in
India and its higher cost, conventional reinforced concrete
design should be preferred choice for spans up to 10 meters.
MR. ABHAYGULERIA: has done the work on the this
paper. ETAB is usually used to analyze: skyscrapers, parking
garages, metal & concrete structure, low and high upward
thrust constructing, and portal frame shape The case take a
look at on this paper in particular emphasizes on structural
behavior of multi-storey building for different plan
configurations like rectangular, c 1 and I-shape. Modeling of
15-story R.C.C framed building is done on the ETAB
software analysis.
III. PLAN SPECIFICATIONS
Area of plot floor: 42000 x 40600 MM^2 ( 18345.22
Square foot )
Built up area: 25600 x 25450 MM^2
Size of bed room: 5000 x 4850 MM^2
Size of Drawing Room: 4850 x 3850 MM^2
Size of kitchen: 4850 x 2778 MM^2
Size of toilet: 2275 x 2350 MM^2
Size of balcony: 5000 x 974.6 MM^2
Size of passage: 4850 MM WIDE
Size of porch: 5075 x 3700 MM^2
Staircase and Lift:
Riser size: 150 MM
Tread size: 300 MM
Running width: 1000 MM
Landing size: 2000 x 1000 MM^2
Size of Lift: 1795.2 x 1965.2 MM^2
Height of Building:
Each storey height: 3 M
Column Size:
C1 230 x 230 MM
C2 355 x 230 MM
C3 500 x 230 MM
Beam Size:
B1 230 x 230 MM
B2 500 x 230 MM
SLAB SIZE:
Slab thickness 120 MM
USE CODE AND ZONE FACTOR:
Wind: IS 875: 2015 PART-3
Wind speed: 25 m/s (According to Luck now zone )
Coefficient Cp : .25 (According to Luck now zone )
Seismic : IS 1893:2002 ( Used code )
Design and Analysis of Residential Multistory Building (G+5) by using ETABS
(IJSRD/Vol. 7/Issue 03/2019/177)
All rights reserved by www.ijsrd.com 690
Seismic zone factor:.16 ( Zone factor 3 According to
Luck now zone )
Response reduction factor: 3 ( For ordinary frame
structure )
IV. BUILDING PLAN
Base Plan According To Center Line
Design and Analysis of Residential Multistory Building (G+5) by using ETABS
(IJSRD/Vol. 7/Issue 03/2019/177)
All rights reserved by www.ijsrd.com 691
Plan Model Line Diagram Create By Autocad
V. METHODOLOGY
1) Step-1: Create a floor plan in AutoCAD.
2) Step-2: Create center line plan & save DXF (Design
exchange format.
3) Step-3: Open the ETAB software and Initial setup of
Indian standard codes.
4) Step-4: Import DXF file in EATB.
5) Step-5: Create grid for required story building.
6) Step-6: Defining of property: First we are defined the
material properties by selecting define menu material
properties. We add new material for our structural
components (beams, columns, slabs) by giving details in
defining. After that we define cross section size by
selecting frame section as required section beam and
column etc.
7) Step-7: Assigning of property: We draw the structural
components using command menu. Draw beam, column,
slab, wall stair and lift by which property assigning is
completed.
8) Step-8: Assigning of supports: By keeping the selection
at the base of the structure and selecting all the columns
we assigned supports by going to assign menu joint/
frame restraints (supports) fixed.
9) Step-9 Defining of loads:
In ETAB all the load consider are first defined and then
assigned.
10) Step-10: Assigning of dead loads: After defining all the
loads. Dead loads are assigned for external walls, inter
walls in staad but in ETAB automatically taken care by
the software i.e. In built.
11) Step-11: Assigning of live loads: Live loads are assigned
for the entire structure including floor finishing.
12) Step-12: Assigning of wind loads: Wind loads defined
and assign as per IS 875:2015 PART-3 by giving wing
speed and wind angle. But since this is a (G+5)
residential building having total height less than 10
meters there is no need of assigning of wind loads or
earthquake loads.
13) Step-13: Assigning of seismic loads: Seismic load are
defined and assign as per IS 1893: 2002 by giving zone
soil type and response reduction factor in X and Y
directions. But since this is a (G+5) residential building
having total less than 10 meters there is no need of
assigning seismic loads.
14) Step-14: Assigning of loads combinations: Using loads
combinations command in define menu 1.5 time of dead
load and live load will be taken.
15) Step-15: Analysis:
After the completion of all the above steps we have
performed the analysis and checked for errors.
16) Step-16: Design: After complete the analysis we had
performed concrete design on the structure as per IS
456:2000 and by using center line diagram the grid
system is given by X and Y co-ordinates.
VI. RESULTS OF ANALYSIS
Analysis of dead loads, live loads, wind loads ( axial load ) ,
and seismic load and by dead load and live loads induced
shear force and bending moment are analysis with diagram of
gravity load , axial load , lateral load ,and longitudinal
reinforcement.
Design and Analysis of Residential Multistory Building (G+5) by using ETABS
(IJSRD/Vol. 7/Issue 03/2019/177)
All rights reserved by www.ijsrd.com 692
Gravity (dead loads):-
Stair case and lift in 3D view:-
Design and Analysis of Residential Multistory Building (G+5) by using ETABS
(IJSRD/Vol. 7/Issue 03/2019/177)
All rights reserved by www.ijsrd.com 693
Wind pressure and Acting axial loads:-
Design and Analysis of Residential Multistory Building (G+5) by using ETABS
(IJSRD/Vol. 7/Issue 03/2019/177)
All rights reserved by www.ijsrd.com 694
Lateral loading on story:-
Seismic effect on building in 3D view:-
Design and Analysis of Residential Multistory Building (G+5) by using ETABS
(IJSRD/Vol. 7/Issue 03/2019/177)
All rights reserved by www.ijsrd.com 695
For area of longitudinal reinforcement, go to design menu in ETAB, concrete frame design and start design check.
VII. CONCLUSION
1) The selected site for (G+5) residential building should be
in area where all type of amnesties is available.
2) This project is theory based on the limit state method and
this is the best approach for theory, analysis and design
done by the ETAB software.
3) In this project are used buildings by laws, according to
NATIONAL BUILDING CODE 2005.
4) The structure design are based on the ETAB use different
IS code such like for design concrete 456:2000, For
Wind IS code 875:2015 PART3 and For seismic IS code
1893:2002.
5) This analysis and design is providing adequate strength,
serviceability and durability besides economy.
6) The lateral displacement, dead load and live load
(induced shear force, bending moment) Axial force
variations are in picture diagram. If any defects are
induced or beam, columns are fails, the dimension of
beam and column should be changed and reinforcement
detailing can be produced.
REFERENCE
[1] Design and analysis of multistoried building under static
and dynamic loading conditions by using ETAB by
Balaji and Selvarasan. In International journal of
technical research and application, Vol. 4, Issue 4 Aug
(2016).
[2] .IS 1893:2002 “standards for earthquake resistant design
of structure- widespread provision for constructing,
“Bureau of Indian fashionable New Delhi”.
[3] IS code (875: 1987) Indian Standard Code of practice for
Design loads (Other than earthquake) for building and
strictures, Bureau of Indian standards, new Delhi.
IS code 875 ( PART-1) For Dead load
IS code 875 ( PART-2) For Live load
IS code 875 ( PART-3) For Wind load
[4] National Building Code of India 2005.
[5] Limit state theory by Ashok Kumar Jain and IS Code
follow.
[6] IS 456: 2000, Indian Standard Plain and reinforced
concrete- code of practice, Bureau of Indian Standard,
New Delhi.
[7] Theory of Structures- S Ramamrutham. Abhay Guleria,
“Structural evaluation of a multi-storied building the
usage of ETABS for distinctive plan configurations”,
International magazine of engineering research