Presented by :Presented by :F R Khan M.Engg (AIT)F R Khan M.Engg (AIT)Managing DirectorManaging DirectorBNS Real Estate LimitedBNS Real Estate Limited

March 20, 2010March 20, 2010

ConceptsConcepts ofof

Real Estate BusinessReal Estate Business

What we offer to Client ?What we offer to Client ?

• Goods :Goods :

1. A 1. A Safe StructureSafe Structure following all Rules (Codes) following all Rules (Codes)

2. An effective & efficient Architectural Layout2. An effective & efficient Architectural Layout

3. All related infra Structure for a Living Comfort3. All related infra Structure for a Living Comfort

• Services :Services :

1. An efficient & Trust worthy Salesmanship1. An efficient & Trust worthy Salesmanship

2. After Sale Service for the lifetime2. After Sale Service for the lifetime

3. Any Service within Ethical way to Satisfy Client3. Any Service within Ethical way to Satisfy Client

• Earn Client Confidence :Earn Client Confidence :

The Salesman is well Conversant about the ProductThe Salesman is well Conversant about the Product

Who are the CLIENTS ?:

Receive Side:

Land Owner

Purchaser

Supply Side:

Material

Human resource

CONCRETE

Taka 2 crore

8000lb WT.

20inch 20in

ch

Stain:

General Technical

CONCRETE

8000lb WT.

MAN

80lb WT.

5.982 ft6.00 ft

Deformation=6.0 ft – 5.982 ft = 0.018 ft

Strain=Deform/ Original = 0.018 ft /6 ft

= 0.003

Deformation=10.0 ft – 9.97 ft = 0.03 ft

Strain=Deform/ Original = 0.03 ft /10 ft

= 0.003

9.97 ft10.00 ft

V

HH

V

NEUTRAL AXIS (WITH LOAD)

Forces

THE FORCE DUE TO BENDING (NO LOAD)

Stress TypesStress Types

V

H

M

The Basics of MechanicsThe Basics of Mechanics

CIVIL ENGINEERING STRUCTURES CIVIL ENGINEERING STRUCTURES MUST SATISFY MUST SATISFY THREE THREE CONDITIONS CONDITIONS TO REMAIN STATIC:TO REMAIN STATIC:

1.1. Summation of Summation of H=0H=0

2.2. Summation of Summation of V=0V=0

3.3. Summation of Summation of M=0M=0

CIVIL ENGINEERING STRUCTURES CIVIL ENGINEERING STRUCTURES MUST SATISFY MUST SATISFY THREE THREE CONDITIONS CONDITIONS TO REMAIN STATIC:TO REMAIN STATIC:

1.1. Summation of Summation of H=0H=0

2.2. Summation of Summation of V=0V=0

3.3. Summation of Summation of M=0M=0

The Frame StructureThe Frame Structure

A Building Basic Frame : A Building Basic Frame : Resist Resist • The Foundation The Foundation

(PILE,FOOTING,RAFT,CASSION)(PILE,FOOTING,RAFT,CASSION)

• The Tie of Foundation (GRADE BEAM)The Tie of Foundation (GRADE BEAM)

• The Vertical Load Bearing Members The Vertical Load Bearing Members (COLUMN, WALLS)(COLUMN, WALLS)

• The Horizontal Load Bearing MembersThe Horizontal Load Bearing Members

(BEAM, COLUMN STRIP,SLAB)(BEAM, COLUMN STRIP,SLAB)

The Loads : Imposed on The Loads : Imposed on

• The Vertical LoadsThe Vertical Loads : In Various Form : In Various Form-Dead -Dead -Live-Live

• The Horizontal LoadsThe Horizontal Loads : In Various Form : In Various Form-Wind -Wind -Earthquake -Earthquake

• The Bending LoadsThe Bending Loads : In Various Form : In Various Form-Deflection-Deflection-Natural Causes-Natural Causes

What RCC actually is ?What RCC actually is ?

• Basically Two Heterogonous materialBasically Two Heterogonous material• One Can take enormous COMPRESSIONOne Can take enormous COMPRESSION but Cannot take any TENSIONbut Cannot take any TENSION• Other can take enormous TENSIONOther can take enormous TENSION

but Can take limited COMPRESSION duebut Can take limited COMPRESSION due to its slender shapeto its slender shapeSo ONE So ONE REINFORCESREINFORCES the the OTHEROTHERLike a marriage both has ONE common Like a marriage both has ONE common

CHILDCHILD

The Concrete : Can take 6,000 The Concrete : Can take 6,000 psipsi Compression Compression alonealone The Basic Materials :The Basic Materials :

1.The Coarse Aggregate (Boulder/Brick/Shingle/Iron/POTATO CHIPS

3.The CEMENT for BINDING the Aggregates, invisibleupon the Process of Hydration

2.The Fine Aggregate (Local Sand/Sylhet Sand/Dust Sand)

The ROUND shape Aggregate SLIPS upon BONDING

The FLICK shape Aggregate may BREAK upon Load

Different Sizes

The Concrete Failure The Concrete Failure Pattern :Pattern :

• Failure Failure Shear Shear PlanePlane

Possible Reasons of Failure :

1. Aggregate Failure by CRUSHING

2. Mortar Failure by LOW Binding of CEMENT

3. Combined Failure of No.1 & No.24. A SLIP BOND Failure of Coarse Aggregate5. A VACCUM or SLIT Dead Aggregate failure

LOAD

Miss

To note : Concrete Crushes with NO Warning

The Steel : Can take 70,000 psiThe Steel : Can take 70,000 psi Tension alone Tension alone

• Steel bars can take Equal Steel bars can take Equal Compression Compression

• Steel bars can take Equal Steel bars can take Equal Compression Compression

Tie Rods

Main Rods

Provided :

1. They are properly Tied2. They are CONFINED

Like a marriage both has ONE Like a marriage both has ONE common CHILDcommon CHILD

If CONCRETE is REINFORCED with If CONCRETE is REINFORCED with STEEL BAR we can get a STRON STEEL BAR we can get a STRON but ECONOMICbut ECONOMIC

Structural Member for taking any Structural Member for taking any kind of LOADkind of LOAD

If CONCRETE is REINFORCED with If CONCRETE is REINFORCED with STEEL BAR we can get a STRON STEEL BAR we can get a STRON but ECONOMICbut ECONOMIC

Structural Member for taking any Structural Member for taking any kind of LOADkind of LOAD

Although Heterogonous, BOTH has a Balance STRAIN = Although Heterogonous, BOTH has a Balance STRAIN = 0.0030.003

That is Reinforced (Steel) That is Reinforced (Steel) CementCementConcrete we use :Concrete we use :

Steel Steel ConfinConfinee

Note :1. Under Ground Clear Cover is DOUBLE 3”2. As Long Design Strength & Durability is Confirmed, ingredients can be many Combination3. In Pile Foundation, it is CONFINED by surrounding SOIL

An ENGINEER however should NOT confineHimself in Single most practice

Case Study : The Shopping Case Study : The Shopping MallMall

• Please watch the very special Video Please watch the very special Video Carefully……..Does really WHAT canCarefully……..Does really WHAT can

make a FAILURE ?make a FAILURE ?

THANK YOUTHANK YOU

PLEASE DISCUSSPLEASE DISCUSS

Time: 4:00 pmTime: 4:00 pm