Dynamic Analysis of Government EWS-Scheme Building Using ... © 2018 JETIR November 2018, Volume 5,...

© 2018 JETIR November 2018, Volume 5, Issue 11 www.jetir.org (ISSN-2349-5162)

JETIRK006079 Journal of Emerging Technologies and Innovative Research (JETIR) www.jetir.org 544

Dynamic Analysis of Government EWS-Scheme Building

Using Software Aid

Jaimis anghan1, Dr. Indrajit patel2, Jagruti P. Shah3 1 M. Tech., Structural Engg. Department, B.V.M Engineering College, Vallabh Vidyanagar – Gujarat

– India 2Professor, Structural Engg. Department, B.V.M Engineering College, Vallabh Vidyanagar – Gujarat

– India 3Assistant Professor, Structural Engg. Department, B.V.M Engineering College, Vallabh Vidyanagar

– Gujarat – India

Abstract Reinforced concrete (RC) frame buildings are the most well-known sort of developments in urban India,

which are subjected to a few kinds of forces amid their lifetime, for example, static forces because of dead

and live loads and dynamic forces because of wind and earthquakes. Not at all like static forces, have amplitude, direction and location of dynamic forces, particularly because of earthquakes, fluctuated

altogether with time, causing impressive inactivity impacts on structures. Conduct of structures under unique forces relies on the dynamic qualities of structures which are controlled by both their mass and stiffness

properties, though the static conduct is exclusively needy upon the stiffness characteristics. Execution of

structures to a great extent relies upon the quality and deformability of constituent members, which is additionally connected to the internal design forces for the members. The interior design forces thus rely on

the precision of the strategy utilized in their analytical determination. Analyzing and designing structures

for static forces is a standard undertaking nowadays as a result of accessibility of moderate PCs and specific programs which can be utilized for the analysis.

Performance of building is carried out under dynamic loading by various parameter like story drift, story stiffness, mass and rigidity and others.

Keywords: Dynamic analysis, Response spectrum, EWS-building

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INTRODUCTION

Structural investigation is fundamentally worried about discovering the behavior of a physical structure

when subjected to force. This activity can be as load because of the heaviness of things, for example,

individuals, furniture, wind, snow, and so forth or some other sort of excitation, for example, a seismic

tremor, shaking of the ground because of an impact close-by, and so on. Fundamentally every one of

these loads are dynamic, including the self-weight of the structure on the grounds that sooner or later in

time these loads were not there. The distinction is made between the dynamic and the static investigation

based on whether the connected activity has enough quickening in contrast with the structure's natural

frequency. On the off chance that a load is connected adequately gradually, the inertia forces (Newton's

first law of movement) can be overlooked and the examination can be rearranged as static investigation.

Basic progression, in this manner, is a sort of basic examination which covers the conduct of structures

subjected to dynamic (activities having high increasing acceleration) loading.

Dynamic loads incorporate individuals, wind, waves, movement, tremors, and impacts. Any structure

can be subjected to dynamic stacking. Dynamic investigation can be utilized to discover dynamic

displacements, time history, and modular examination.

A dynamic examination is likewise identified with the latency forces created by a structure when it is

energized by methods for dynamic loads connected all of a sudden (e.g., wind impacts, blast, and

seismic tremor).

A static load is one which differs gradually. Dynamic load is one which changes with time decently fast

in contrast with the structure's common recurrence. On the off chance that it changes gradually, the

structure's reaction might be resolved with static investigation, however in the event that it fluctuates

rapidly (in respect to the structure's capacity to react), the reaction must be resolved with a dynamic

examination.

Dynamic investigation for straightforward structures can be completed physically, yet for complex

structures finite element analysis can be utilized to ascertain the mode shapes and frequencies.

OBJECTIVE OF STUDY

Parametric study of EWS-building under dynamic loading by using the ETAB 2016.

PROBLEM STATEMENT

To analyze building with difference parameter like, story drift, story stiffness, story max. And

avg. drift story max. And avg. displacement by using ETAB 2016.




INPUT PARAMETERS

Figure 1 Plan of EWS Building Figure 2 Plan of building in ETAB

Figure 3 Model of EWS building




RESULTS

Figure 4 Story Drift Figure 5 Story Stiffness

Figure 6 Centers of Mass and Rigidity Figure 7 Story Max/Avg. Drifts

Figure8:StoryMax/Avg.Displacements

0

500000

1000000

1500000

2000000

2500000

LIFTCA…

STAIRC…

TER

RA

CE

11

TH

10

TH

9TH

8TH

7TH

6TH

5TH

4TH

3R

D

2N

D

1ST

LGB

KN

/m

Story

Story stiffness

0500000

10000001500000

Kg

Story

Centers of Mass and Rigidity

Mass X Mass Y

0

0.5

1

1.5

LIFTCABI…

STAIRCA…

TER

RA

CE

11

TH1

0TH

9TH

8TH

7TH

6TH

5TH

4TH

3R

D2

ND

1ST

LGB

Rat

io

Story

Story Max/Avg Drifts

00.20.40.60.8

11.21.41.6

LIFT

CA

BIN

TO

P

STA

IRC

AB

IN T

OP

TER

RA

CE

11

TH

10

TH

9TH

8TH

7TH

6TH

5TH

4TH

3R

D

2N

D

1ST

Rat

io

Story

Story Max/Avg Displacements

0

10

20

30

40

mm

story drift

X-direction Y-direction




CONCLUSIONS

Story drift is within the maximum limit as shown in figure 4, As per IS 1893:2016.

No Stiffness irregularity and mass irregularity at any floor as shown in figure 5 & 6.

Time period for X-direction 2.09 sec. and for Y-direction 2.05 sec.

As per the result, story max. / Avg. drift ratio is less than 1.5 as shown in fig.7, No torsion

generates at any floor.

We can say that they will act as rigid diaphragm or flexible diaphragm, as shown in fig.8.

As, per the results and for obtaining realistic behavior of any building/structure dynamic

analysis plays very important role.

REFERENCES

1. Criteria for earthquake resistant design of structures: part 1 – general provisions for all structures

and specific provisions for buildings [sixth revision of is 1893 (PART 1)].

2. Shah H.J., Reinforced concrete, vol-1, Charotar publication, 2012.

3. Shah, Karve, Illustrated Design of Reinforced Concrete Buildings (Design of G+3 Storeyed

Buildings + Earthquake Analysis & Design).

4. Mohit Sharma, Dr. Savita, “Maru Dynamic Analysis of Multistoried Regular Building”, (IOSR-

JMCE), Volume 11, Issue 1 Ver. II,pp 37-42 Jan. 2014.

5. E. Pavan Kumar, A. Naresh, M. Nagajyothi, M. Rajasekhar, Earthquake Analysis of Multi Storied

Residential Building - A Case Study” Int. Journal of Engineering Research and Applications ISSN

: 2248-9622, Vol. 4, Issue 11( Version 1), pp.59-64, November 2014.

6. IS: 456-2000 (Indian Standard Plain Reinforced Concrete Code of Practice) – Fourth Revision.

7. IS-13920."Ductile detailing of reinforced structures subjected to seismic force" code of practice

Bureau of Indian Standards, New Delhi.


Dynamic Analysis of Government EWS-Scheme Building Using ... © 2018 JETIR November 2018, Volume 5,...

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