ICEI - 2023 (Volume 11 – Issue 05)

Enhancing The Sesmic Performance Of Building Using Dampers

DOI : 10.17577/IJERTCONV11IS05084

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Namrata S Naragundkar, Bhuvan S Somanna, Anoop A N, Baskar A, Keshav Murthy N D, 2023, Enhancing The Sesmic Performance Of Building Using Dampers, INTERNATIONAL JOURNAL OF ENGINEERING RESEARCH & TECHNOLOGY (IJERT) Volume 11, Issue 05 (ICEI – 2023),

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Enhancing The Sesmic Performance Of Building Using Dampers

Namrata S Naragundkar Department of Civil Engineering

Jain Institute of Technology, Davanagere Karnataka, India

Bhuvan S Somanna Department of Civil Engineering

Jain Institute of Technology, Davanagere Karnataka, India

Anoop A N Department of Civil Engineering

Jain Institute of Technology, Davanagere Karnataka, India

Baskar A Department of Civil Engineering

Jain Institute of Technology, Davanagere Karnataka, India

Keshav Murthy N D Department of Civil Engineering

Jain Institute of Technology, Davanagere Karnataka, India

Abstract India is developing country, nowadays our Indian population is increasing day by day. According to some sources our Indian population is reached nearly 142.86 crores, this rapid increase in population forced engineers to adopt for high rise building. Damage caused by lateral load is needed to be control. There are so many methods to control the damage of building by lateral loads: we are adopting one of method, providing the different types of loads in the building. In present study, we have used conventional building with 15mx18m along the direction. We carried out the linear analysis by using E-TABS software, then comparing the result of displacement, storey drift, between the bare building.

Keyword Fluid viscous dampers, Displacement, Storey Drift, E-TABS etc.

  1. INTRODUCTION

    The increase in population by which land deficit occurs and to overcome that, high-rise buildings are opted. These type of high-rise buildings are prone to structural failures mainly on application of lateral loads such as wind, seismic forces etc. Geographical statistics of India show that almost 54% of the land is vulnerable to earthquakes. Calamities like earthquakes are the most dangerous by means of the damage and chaos caused to the structural components and they cannot be controlled. These natural calamities caused property damage and interruptions in development of the normal lifecycle. Since its a global concern, most of the analysis should be carried out and provided with the results to prep the structure in order to attain time period.‌‌‌

    Fig COMMERCIAL BUILDING

      1. LOADS TO BE CONSIDERED

        1. Dead load

          A dead load is nothing but the self- weight of its structural element. It is mainly considered for its density of materials.

        2. Live load

          Live loads are imposed loads that are temporary and of a short duration, are moving loads.

        3. Wind load

          The effect of wind load is not considered as the structure satisfies the following requirements as per the national building code of 1970.

          1. The building or a part of a building of which h does not exceed twice the effective width.

          2. A wing of such a building, if it does not project more than twice its own width.

        4. Seismic load

          Seismic load is the basic concept of earthquake engineering, which means the application of an earthquakes generated agitation to a shape.

  2. OBJECTIVES OF STUDY

    The main objectives of this study are summarized in few points as follows:

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          • Conventional building and building incorporated with dampers.

          • To evaluate the dampers i n d i f fe re n t of seismic performance.

  3. MODELING AND ANALYSIS

ETABS is analysis software. ETABS is expanded as extended three dimensional analysis of building systems. All the necessary tools, like create, modify, analyse and optimize etc., which are required for structural engineers are provided by this software.

    1. MODELS CONSIDERD FOR ANALYSIS

      Fig 1: View of slab, beam &column

      Fig 2: View of slab, beam &column

    2. PROCEDURE FOR USING E-TABS

      Step 1: Model Initialization Step 2: Custom grid settings Step 3: Defining the materials

      Step 4: Defining frame properties Step 5: Defining slab properties Step 6: Draw beams and column Step 7: Defining load patterns Step 8: Assigning shell loads Step 10: Analyse/Check model

      Figure 4: Rendered view

      Results lateral displacement along for the different load combinations with Conventional dampers are expressed table.

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      Table 5.1: Maximum storey displacement in X- direction.

      40

      35

      30

      25

      20

      15

      10

      5

      Story

      Elevation(m)

      Without Dampers in mm

      With Dampers in mm

      Story12

      36

      177.881

      106.847

      Story11

      33

      167.289

      94.171

      Story10

      30

      154.739

      81.462

      Story9

      27

      140.527

      68.861

      Story8

      24

      124.953

      56.55

      Story7

      21

      108.304

      44.743

      Story6

      18

      90.853

      33.684

      Story5

      15

      72.878

      23.646

      Story4

      12

      54.703

      14.924

      Story3

      9

      36.808

      7.841

      Story2

      6

      20.076

      2.74

      Story1

      3

      6.385

      0

      Base

      0

      0

      0

      Displacement in X Direction

      0

      -50 0 50 100 150 200

      DISPLACEMENT

      Without Damper Without Damper

      Fig 5.2: Maximum storey along Y- direction.

      Story1

      Story

      Elevation(m)

      Without Dampers

      in mm

      With Dampers in mm

      Story12

      36

      181.804

      107.912

      Story11

      33

      170.891

      95.059

      Story10

      30

      157.989

      82.186

      Story9

      27

      143.399

      69.435

      Story8

      24

      127.425

      56.99

      Story7

      21

      110.36

      45.066

      Story6

      18

      92.488

      33.909

      Story5

      15

      74.098

      23.79

      Story4

      12

      55.529

      15.007

      Story3

      9

      37.282

      7.879

      Story2

      6

      20.273

      2.752

      3

      6.421

      0

      Base

      0

      0

      0

      Displacement in Y

      4

      3

      3

      2

      2

      1

      1

      5

      0

      -5 0 5 10 15 20

      DISPLACEME

      Without Without

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    3. STOREY DRIFT

      Table 3: Maximum drift in X direction.

      Story

      Elevation(m)

      Without Dampers in mm

      With Dampers in mm

      Story12

      36

      0.003531

      0.004225

      Story11

      33

      0.004183

      0.004236

      Story10

      30

      0.004737

      0.0042

      Story9

      27

      0.005191

      0.004104

      Story8

      24

      0.00555

      0.003936

      Story7

      21

      0.005817

      0.003686

      Story6

      18

      0.005992

      0.003346

      Story5

      15

      0.006058

      0.002907

      Story4

      12

      0.005965

      0.002361

      Story3

      9

      0.005577

      0.0017

      Story2

      6

      0.004563

      0.000913

      Story1

      3

      0.002128

      0

      Base

      0

      0

      0

      Table 5.4 Maximum drift in Y- direction.

      Story

      Elevation(m)

      Without Dampers

      in mm

      With Dampers in mm

      Story12

      36

      0.003638

      0.004284

      Story11

      33

      0.004301

      0.004291

      Story10

      30

      0.004864

      0.00425

      Story9

      27

      0.005325

      0.004148

      Story8

      24

      0.005688

      0.003975

      Story7

      21

      0.005957

      0.003719

      Story6

      18

      0.00613

      0.003373

      Story5

      15

      0.00619

      0.002928

      Story4

      12

      0.006082

      0.002376

      Story3

      9

      0.00567

      0.001709

      Story2

      6

      0.004617

      0.000917

      Story1

      3

      0.00214

      0

      Base

      0

      0

      0

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      CONCLUSION

      • The displacement in X direction the conventional / bare or without dampers in building shows that 39.93% lesser than with dampers in building.

      • The displacement in Y Direction the conventional / bare or without dampers in building shows that 40.63% lesser than with dampers in building.

      • The story drift in X Direction the conventional / bare or without dampers in building shows that 44.15% lesser than with dampers in building.

      • The story drift in Y Direction the conventional / bare or without dampers in building shows that 52.69% lesser than with dampers in building.

      • From the overall result the displacement and story drift are minimum in with dampers building as compared to the without damper building.

      • Compared to the building connected with dampers the story displacement is increases with increase in stiffness of the buildings.

      • The story drift will decrease as the flexibility decreases in building, due to dampers connected to the building.

SCOPE OF FUTURE STUDY

Within the limited scope of the present work, the broad conclusion drawn from this work have been reported. However, further study can be undertaken in the following areas.

  • Irregular plan buildings are considered for analysis that can be further extended to vertical irregular plan of building.

  • Dampers provided at the corners only, further study also may be undertaken by providing different location

  • fixed base structure, further study may also be undertaken by considering of soil structure interaction.

  • The study is further being extended to progressive collapse mechanism.

REFERENCES

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Modernization in Engineering Technology and Science.

[2]. Darshan K M, Dr. H R Srinivas, Mary Bhagya Jyothi J (2021), Entitled Comparitive Analysis Of Highrise Buildings With And Without Dampers In Zone V Using E. Volume:03/Issue:11. International Research Journal of Modernization in Engineering

Technology and Science.

[3]. Rohan Haridas Pore, Arohan Anandrao Jadhav, Sakharam Ekanath Dhat, Amit Bandu Pardeshi (2020), A Literature review of MR Damper – Design and Analysis. Volume 8, Issue 6.

[4]. Apoorva S, Ajay K R, Bhavyashree R, Lokesh M, Prithvirani (2020), Seismic

Analysis of High-Rise Building G+24 Using ETABS. Volume:07, Issue:08. International Research Journal of Engineering and Technology (IRJET).

[5]. DR. K. Chandrasekhar Reddy & G.Lalith Kumar (2019),

Seismic Analysis of

High- Rise Buildings (G+30) by Using ETABS. Volume 5, Issue 03. International Journal of Technical Innovation in Modern Engineering & Science (IJTIMES).

[6]. Nikhil Shedbale , Prof. P. V. Muley (2017), Viscoelastic Materials used in

Viscoelastic Dampers . Volume:04, Issue:07. International Research Journal of Engineering and Technology (IRJET).

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[8]. Sagar Dhok, Prof. P. V. Muley, Dr. T. N. Boob, Prof. P. R. Barbude (2016), Review on applicability of combinations of Damper for Steel Frame Structure. Volume: 03 Issue:

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