earthquake reistant building

A PRESENTATION ONDESIGN OF EARTHQUAKE RESISTANT BUILDING IN

MORADABAD, G+8, USING SOFTWARE

HEMANT KUMAR

M.I.T. MORADABAD

PRESENTING BY:

DESIGN OF EARTHQUAKE RESISTANT BUILDING IN

MORADABAD, G+8

Presentation By.

HEMANT KUMAR

Special thanks to Mr. N.K. Singh, Associate ProfessorDeptt.. of Civil Engineering

Objectives

The Objectives of the Project are:-

Carrying out a complete analysis and design of the main structural elements of a multi-storey building including slabs, columns, shear walls.

Getting familiar with structural softwares ( Staad Pro, AutoCAD, Staad foundation and Sketch Up)

Getting real life experience with engineering practices

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Staad pro staad auto cad Sketch Up foundation

softwares

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SummarySummaryOur graduation project is a residential building in Moradabad. This

building consists of 8 repeated floors.

EARTHQUAKE:

Sources of Earthquake

• Tectonic plates• Volcanic eruption• Nuclear explosion

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Losses

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Techniques to resist Earthquake

• Active & Passive system• Shear walls• Bracing• Dampers• Rollers• Isolation• Light weight material• Bands• Others

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Active SystemActive control systems are devices integrated with real-time processing evaluators for improved service and safety.

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Passive control systems are conventional devices to resist or absorb the energy produced during Earthquake.For example: Viscous Dampers

Inertial Forces

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Shear WallsResist;• Gravity Loads• Lateral Loads

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Shear Wall

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March 3, 1985 Earthquake (Chile) Shear Wall performed very well

Bracing

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Link Beams

Diagonal Cross Chevron Eccentric

Bracing

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Bracing

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Cross Bracing

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Dampers

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Liquid Tuned Mass Damper

19One Rincon Hill, San Francisco

Rollers

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Isolation

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Isolation Bearing

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Base Isolation

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Base Isolation mechanism

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Bands

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Waste Tire pads

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Waste Tire Pads

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Seismic Zone

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HaunchesIn case of Joint failure,• Use High strength concrete • Increase section near joints • Provide haunches.

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Light weight material

In recent times, many new systems and devices using non-conventional civil engineering materials have been developed, either to reduce the earthquake forces acting on a structure or to absorb part of seismic energy.

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Suggestions

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Suggestions

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Avoid Hammering & Pounding

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STAAD PRO V8i

STRUCTURE ANALYSIS AND DESIGN SOFTWARE

Structure analysis and design.

RCC Design

Steel Design

What is staadWhat is staad??

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Advantages?Analysis and design of rcc, steel, foundations, bridges etc.

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Why staad?Why staad?

An hourFor a building with

several beams and columns?

At least a week.

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Robot, SAP200, Struds, FEA software, SAP and GTSTRUDL

Alternatives?

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Types of buildingsTypes of buildings

Buildings are be divided into:

◦ Apartment building Apartment buildings are multi-story buildings where three or more

residences are contained within one structure. ◦ Office building

The primary purpose of an office building is to provide a workplace and working environment for administrative workers.

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Residential buildingsResidential buildings

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Office buildingsOffice buildings

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PLANPLAN

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PLANPLAN

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Center line plan

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Total area 1929.4985 sq .m

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Flow diagram of design & analysis of structure in staad

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1. TRANSFORMER (230 – 12 V AC)

2. RECTIFIER AND FILTER3. VOLTAGE REGULATOR

(LM 7805)4. LM358 OP-AMP5. MICROCONTROLLER

(AT89S52/AT89C51)6. RELAY7. DC MOTOR8. LCD

Loads

• Live load

• Dead load

• Seismic load

• Floor load

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1. TRANSFORMER (230 – 12 V AC)

2. RECTIFIER AND FILTER3. VOLTAGE REGULATOR

(LM 7805)4. LM358 OP-AMP5. MICROCONTROLLER

(AT89S52/AT89C51)6. RELAY7. DC MOTOR8. LCD

1. TRANSFORMER (230 – 12 V AC)

2. RECTIFIER AND FILTER3. VOLTAGE REGULATOR

(LM 7805)4. LM358 OP-AMP5. MICROCONTROLLER

(AT89S52/AT89C51)6. RELAY7. DC MOTOR8. LCD

Vertical Loads1.Dead2.Live3.Snow4.Wind4.Seismic and wind5.Seismic

Horizontal(lateral)loads1.Wind2.seismic3.flood4.soil

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1. TRANSFORMER (230 – 12 V AC)

2. RECTIFIER AND FILTER3. VOLTAGE REGULATOR

(LM 7805)4. LM358 OP-AMP5. MICROCONTROLLER

(AT89S52/AT89C51)6. RELAY7. DC MOTOR8. LCD

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Forces Acting in StructuresForces Acting in Structures

Vertical: Gravity Lateral: Earthquake

1. TRANSFORMER (230 – 12 V AC)

2. RECTIFIER AND FILTER3. VOLTAGE REGULATOR

(LM 7805)4. LM358 OP-AMP5. MICROCONTROLLER

(AT89S52/AT89C51)6. RELAY7. DC MOTOR8. LCD

Loads that may change its position during operation. example: People, furniture, equipment.

Minimum design loadings are usually specified in the building codes.

Given load:25 N/mmAs per IS 1893 (Part 1) : 2002

Live LoadsLive Loads

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1. TRANSFORMER (230 – 12 V AC)

2. RECTIFIER AND FILTER3. VOLTAGE REGULATOR

(LM 7805)4. LM358 OP-AMP5. MICROCONTROLLER

(AT89S52/AT89C51)6. RELAY7. DC MOTOR8. LCD

Loads which acts through out the life of the structure. slabs, Beams , walls.

Dead load calculationVolume x DensitySelf weight+floor finish=0.12*25+1=3kn/m^2As per Is 1893 (Part 1) : 2002

Dead loadDead load

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1. TRANSFORMER (230 – 12 V AC)

2. RECTIFIER AND FILTER3. VOLTAGE REGULATOR

(LM 7805)4. LM358 OP-AMP5. MICROCONTROLLER

(AT89S52/AT89C51)6. RELAY7. DC MOTOR8. LCD

Pressure:0.0035N/mm^2

Floor loadFloor load

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1. TRANSFORMER (230 – 12 V AC)

2. RECTIFIER AND FILTER3. VOLTAGE REGULATOR

(LM 7805)4. LM358 OP-AMP5. MICROCONTROLLER

(AT89S52/AT89C51)6. RELAY7. DC MOTOR8. LCD

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Density of materials usedDensity of materials usedMATERIAL DensityMATERIAL Density

i) Plain concretei) Plain concrete 24.0 KN/m324.0 KN/m3ii) Reinforcedii) Reinforced 25.0 KN/m325.0 KN/m3iii) Flooring material (c.m)iii) Flooring material (c.m) 20.0KN/m320.0KN/m3iv) Brick masonryiv) Brick masonry 19.0KN/m319.0KN/m3

LIVELOADS: In accordance with LIVELOADS: In accordance with 1893 (Part 1) : 2002i)i) Live load on slabsLive load on slabs == 3.0KN/m23.0KN/m2ii) ii) Live load on passageLive load on passage == 3.0KN/m23.0KN/m2iiiiii Live load on stairs Live load on stairs == 3.0KN/m23.0KN/m2

Seismic load

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• two principal horizontal directions. • Fundamental time period of building are calculated as per IS

1893(Part 1):2002 cl.7.6.2 • As given below • T=0.09*h/√d • h is height of building • d =Base dimension of building at plinth level. • For rocky or hard soil sites • Sa/g =1+15*T 0.00≤T≤0.10 • =2.5 0.10≤T≤0.40 • =1.00/T 0.40≤T≤4.00

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High seismic pressures on the sides of tall buildings produce base shear and overturning moments.

These forces cause horizontal deflection

Horizontal deflection at the top of a building is called drift

Drift is measured by drift index, /h, where, is the horizontal deflection at top of the building and h is the height of the building

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Lateral forcesLateral forces

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Global StabilityGlobal Stability

Sliding Overturning

SlabBeamColumnFoundationsoil

Load transfer mechanismLoad transfer mechanism

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COLUMNSCOLUMNS

Three different sections are adopted in structure

Columns with beams on two sides

Columns with beams on three sides

Columns with beams on four sides

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Column RCC design

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beams

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DEFLECTIONOne-way slab Two way slab

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Distribution of load

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FLOOR LOAD

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slabs

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conclusionconclusion

• Requirement of high rise residential building.• Using softwares as a tool.• Advantages.• Limitations.

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CONTACT US

You can follow me for more information at given link.. www.sonuhemant.weebly.com www.facebook.com/sonuhemant www.twitter.com/sonuhemantt www.linkedin.com/in/hemant-kumar-02388873 www.youtube.com/sonuhemantt

Mail us at: sonuhemantt@gmail.com76

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