LN 13 IBS

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Transcript of LN 13 IBS

22/10/2010

Definition Industrialised Building System (IBS)The Industrialised Building Systems (IBS) is a construction process that utilises techniques, products, components, or building systems which involve prefabricated components and on-site oninstallation.

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IntroductionAll building components such as wall, floor slab, beam, column and staircases are mass produced either in factory or at site under strict quality control and minimal on site activities Mechanisaton of the building processes Eg of completed building in Malaysia HUKM, university Hospital, Selayang Hospital, Kuala Lumpur Tower< IKEA Damansara

Structural Category of IBSBased on CIDB: Group 1: Pre-cast Concrete Framing, 1: PrePanel and Box Systems Includes precast concrete columns, beams, slabs, walls 3 D components eg balconies, staircases, toilets, lift chambers, refuse chambers Lightweight precast concrete and permanent concrete formworks4

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Group 1

PrePre- cast Concrete Components

Balcony

Beams5 6

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Structural Category of IBSGroup 2: 2: Steel Formwork Systems

Group 2

eg tunnel forms, tilt-up system tiltbeams/columns moulding and permanent formworks

Tilt-up system7 8

Structural Category of IBSGroup 3: 3: Steel Framing Systems

Structural Category of IBSGroup 4: Prefabricated Timber Framing Systems Prefabricated timber framing systems consists of prefabricated timber trusses, beams and columns

Steel framing system eg steel trusses, columns, beams and portal frame system

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Structural Category of IBSGroup 5: 5: Block Work Systems

PrePre-cast ConcreteConcrete cast into desired shapes prior to placement in a structure

Blockwork system includes interlocking concrete masonry unit (CMU) Lightweight concrete blocks

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PrePre-cast Concrete

Prestressed Concrete

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ErectionThe assembly of parts put together in different ways to form the total building fabric The parts meet at joints or connections Joint refers to the space between components whether or not they are in contact

Frame Joints

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Precast Frame Joints

Advantages of Pre-cast concrete Presystem (1)High level mechanisation thus precision No delay due to bad weather and manpower Application of modular design in standardising dimensions Work done concurrently at factory and at site thus speed up construction Low site workers requirement due to simplified construction methods Quality controlled and highly aesthetic end products Reduction of construction materials at sites Save costs

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Advantages of Pre-cast concrete Presystem (2)Reduction / elimination of conventional timber formworks Reduction / elimination of props Reduction of construction wastes Cleaner sites safer construction sites Faster completion of construction projects Cheaper total construction costs made possible due to all of the above19

Modular Coordination (MC)Is a concept of coordination of dimensions and space in which building and components are dimensioned and positioned in terms of basic units or modules known as 1M = 100mm MS 1064: 2001 Malaysian Standard for modular coordination20

Why MCProvide a coherent method for coordinating the position and dimension of components in the planning and design of buildings Improve productivity in building industry. MC facilitate achievement of industrilisation Provide guide to component sizes thus reduce work on site eg trimming and shaping hence reduce wastage and labour Standardisation simplify site operation by rationalising setting out, positioning and assembly of building components21

Examples: IBSThe construction of Police Station in Senawang Negeri Sembilan: Comprises of 1 unit of Police Station Office Block, 4 units of Class F Quarters and 2 Units of Class G Quarters and the External works

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THE CONSTRUCTION OF QUARTERS G

NUMBERS OF PANELS USEDPrecast Wall Precast Slab Block Block Block Block G2 G1 G2 G1 91 94 94 94 1 468 91 94 94 94 1 468 0 102 102 102 0 408 0 102 102 102 0 40824

The Block comprises of 5 Storey Building as shown in the picture Level

QUARTERS G

1 2 3 4 Upper Roof23

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CONSTRUCTION PROCESS USING PRECAST PANELSPILING PILE CAP cast insitu cast insitu cast insitu cast insitu

STUMP GROUND BEAM FLOOR SLAB COLUMN

PILING WORK FOR FOUNDATION

precast

INSTALLATION OF CONCRETE WALL PANELPROCESS REPEATED FOR SUCCESIVE FLOOR

precast cast insitu

INSTALLATION OF FLOOR SLAB CONCRETE PANEL

CONCRETE TOPPING ON FLOOR SLAB

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PREPARATION OF PILE CAP (CAST INSITU)

PREPARATION OF COLUMN STUMP (CAST INSITU)27 28

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CONSTRUCTION OF GROUND BEAM (CAST INSITU)

Dowel Bar

INSTALLATION OF 300 MM x 25 MM DIA.- DOWEL BAR AT GROUND BEAM31 32

MOULD FOR THE PRECAST CONCRETE PANEL WAS FABRICATED IN THE FACTORY ACCORDING TO THE DESIGN SPECIFICATIONS INCLUDING REQUIREMENTS FOR ELECTRICAL INSTALLATION

MOULD FOR THE PRECAST CONCRETE PANEL

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CASTING PROCESS IN A FACTORY

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WORK ON CASTING IN PROGRESS IN A FACTORY

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COMPLETED WALL PANELS

PANELS TO BE TRANSPORTED TO CONSTRUCTION SITES39 40

THE USE OF FULL TIME CRANE FOR THE HOISTING AND INSTALLATION OF PANELS41 42

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CAST IN SITU COLUMNS READY FOR PANEL INSTALLATION

COLUMNS ARE READY FOR THE INSTALLATION OF SUCCESSIVE PANELS43

ONE CRANE AND 5 SKILLED WORKERS WERE USED FOR THE INSTALLATION OF THE PRECAST CONCRETE PANELS44

WORKS ON INSTALLATION OF WALL PANELS USING A CRANE

Installation of Precast Panels

DOWEL BARS WERE SLOT TO THE HOLE SLOT UNDERNEATH THE PANEL FOR CONNECTION45 46

TEMPORARY SUPPORT WRE USED IN WALL INSTALLATION FOR VERTICAL ALIGNMENT

PANELS WERE HOIST THROUGH PROPER HOOKS AND FIXED THROUGH THE PANEL CONNECTION SLOTS

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THE USE OF PANEL-SUPPORT IS TO ENSURE THE VERTICALITY IN POSITIONING OF PANELS

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CONCRETE JOINTS BETWEEN COLUMN AND WALL PANELS

CROSS-SECTION OF PANEL JOINT DETAIL

CONCRETING OF THE JOINTS USING CONCRETE CHIPPING OF GRADE 25

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GROUTING OF THE JOINTS BETWEEN WALL AND COLUMN53

COMPLETED COLUMN/PANEL JOINT

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INSTALLATION OF PRECAST FLOOR SLAB PANEL

GROUTING IN PROGRESS USING GROUTING MATERIALEMCRETE S

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PREPARATION OF FLOOR SLAB CONCRETE TOPPING (CAST INSITU)

FLOOR SLAB PANELS FIXED TO POSITION

ELECTRICAL CONDUITS AND RETICULATION PIPES ARE INSTALLED AND FIXED INTO POSITION BEFORE CONCRETE TOPPING WERE CARRIED OUT

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BOTTOM VIEW

COMPLETED FLOOR SLAB

ROOF TRUSS OF QUARTERS G

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FINISHING AND FINAL TOUCH- UP

QUARTERS G NEARLY COMPLETION

PAINTINGS

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INTERNAL VIEW OF QUARTERS G

LOUNGE

OTHER EXAMPLE OF PRECAST CONCRETE PANELS CONSTRUCTION Construction of Quarters in Audit Academy in Negeri Sembilan

DINING

More Types of Precast Panels were used in the construction

KITCHEN63 64

Components delivered for this project are as below:Hollow Core Slab Precast Plank Precast Balcony Precast Beam Precast Column Precast Staircase (Flight & Landing Elements) Precast Parapet & Load Bearing Walls 1927.0 m2 291.0 m2 16 nos. 136 nos. 63 nos. 12 nos. 200 nos.65

SOME COMPLETED PROJECT PHOTOS USING PRECAST CONCRETE STRUCTURE-Commercial Building Category

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SOME COMPLETED PROJECT PHOTOS USING PRECAST CONCRETE STRUCTURE-Public Building Category

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