earthquake reistant building
TRANSCRIPT
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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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: [email protected]
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