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PRESENTATION ON BEAM , SLAB , COLUMN

Presentation on Slab, Beam & Column

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This is a Power Point Presentation discussing briefly about the Slab, Beam & Column of a building construction. It was presented on 6th March, 2014 as part of the Presentations of the subject: DETAILS OF CONSTRUCTION, at Ahsanullah University of Science & Technology (AUST)

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Page 1: Presentation on Slab, Beam & Column

PRESENTATIONON

BEAM , SLAB , COLUMN

Page 2: Presentation on Slab, Beam & Column
Page 3: Presentation on Slab, Beam & Column

Presented By : Group-05 Year : 2nd, Sem : 2nd

Name of the Group Members :

MOHAMMED NASIL AFTAD – 12-01-03-141 MD. MOHIBUL HASAN – 12-01-03-112 SAFFAT RABBY MUNAYEM – 12-01-03-106 MD. MUSABBIR AHMED – 12-01-03-156 MD. MYNUL KARIM – 12-01-03-126 MAKSUDUR RAHMAN – 12-01-03-146 BISWAJITH DEB RAHUL – 12-01-03-120 SHARMIN SIDDIKA – 12-01-03-131 AFSANA KHAN – 12-01-03-151 S.M. TOWFIQ ISLAM – 11-02-03-047

Page 4: Presentation on Slab, Beam & Column
Page 5: Presentation on Slab, Beam & Column

Column is a vertical structural member

It transmits the load from ceiling/roof slab and beam, including its self-weight to the foundation.

Page 6: Presentation on Slab, Beam & Column

Long

Column/

Slender

Short

Column

Intermediate

Column

Page 7: Presentation on Slab, Beam & Column

Horizontal member of a structure

Carries transverse loads

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SIMPLY SUPPORTED

BEAMOVERHANGING BEAM CANTILEVER BEAM

FIXED BEAM PROPPEDCONTINUOUS

BEAM

Page 9: Presentation on Slab, Beam & Column

It is a flat horizontal surface

It is supported by beam and column

It transfers load to the beam

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GRANAIT

MARBEL

•*ONE WAY * TWO WAY * FLAT * BEAM

*RIBBED

CONCRETE

WOODEN

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SLAB

BEAM

COLUMN

Page 12: Presentation on Slab, Beam & Column

1. U.D.C. CONSTRUCTION

TEJGAON INDUSTRIAL AREA, DHAKA

2. RANGS BABYLONIA

TEJGAON INDUSTRIAL AREA, DHAKA

3. RESIDENTIAL AREA

BASUNDHARA RESIDENTIAL AREA , DHAKA

Page 13: Presentation on Slab, Beam & Column

Sand

Cement

Reinforcement

Page 14: Presentation on Slab, Beam & Column

Vibrator

Cutter

Mixing Machine

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Page 16: Presentation on Slab, Beam & Column

A rectangular column must have at least 4 reinforcements at 4 corners

Page 17: Presentation on Slab, Beam & Column

Circular column should have minimum 6 reinforcements

Reinforcement should be min 1% and max 8%

Page 18: Presentation on Slab, Beam & Column

It is done when length of reinforcement bar is small but we need longer reinforcement

Provided in mid span

Tied with hooks

Page 19: Presentation on Slab, Beam & Column

Columns have closed lateral ties spaced approximately uniformly across the column

Resist shear force and bursting out effect

10mm Ø, 12mm Ø bars are used

Page 20: Presentation on Slab, Beam & Column

Normal spacing = S in mid span

Spacing near support joint = S/2

Page 21: Presentation on Slab, Beam & Column

Used to resist expansion

The hooks shall be bent to 135º

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Must be leak proof, smooth inside and properly aligned

Should be maintained 1.5 in clear cover

Page 23: Presentation on Slab, Beam & Column

Concrete is casted in two lifts

It should not be casted from more than 5 feet high to avoid concrete segregation

Page 24: Presentation on Slab, Beam & Column

Compaction is done by vibrator

Construction joints are provided for better bonding between new and old concrete

Formwork is removed after 3 days

Page 25: Presentation on Slab, Beam & Column

Provides water for hydration reaction

Increases the strength up to 2.5 times

Done for 21 days

Gunny bags are used for curing

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Page 27: Presentation on Slab, Beam & Column

STEEL FORMWORK WOODEN FORMWORK

Page 28: Presentation on Slab, Beam & Column

A min. of 0.2% bar is to be provided for the compression in order to take care of the deflection

Extra tops are used in the support joints

Page 29: Presentation on Slab, Beam & Column

Used to resist shear and diagonal tension stresses in a beam

Shall be minimum size of 8mm ∅ in case of lateral load resistance

Page 30: Presentation on Slab, Beam & Column

Alternate hook is provided

The hooks shall be bent to 135º

Stirrup distribution is dense near support

Page 31: Presentation on Slab, Beam & Column

Casting and Curing are done simultaneously for beam and slab.

Casting of lower part is done earlier

Page 32: Presentation on Slab, Beam & Column

Side of formwork is removed after 3 days

Bottom part is removed after 21-28 days

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Page 34: Presentation on Slab, Beam & Column

Steel Formwork Wooden Formwork

Page 35: Presentation on Slab, Beam & Column

BRACING

PROPS

Page 36: Presentation on Slab, Beam & Column

Slab reinforcement includes straight bar , cranked bar

Extra tops near the supports

Page 37: Presentation on Slab, Beam & Column

Mainly 1.5 " clear cover is maintained

CC blocks are used

Page 38: Presentation on Slab, Beam & Column

Compaction is done with Patta

Page 39: Presentation on Slab, Beam & Column

Curing : It is done for 21 days

Removal of Formwork: After 21 days formwork is removed

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