College of North West London presentation; for the National Diploma in Construction

1. BUILDING
TECHNOLOGY IN
CONSTRUCTION
UNIT 6
John Fox, College of North West
February, 2012 London 1

2. INTRODUCTION
 Building technology has evolved over the
centuries between simple structures,
through to hi-tech, state of the art
buildings.
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3. TRADITIONAL TYPE OF
MATERIALS
 BRICKS & MORTAR
 TIMBER
 CONCRETE
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4. MODERN MATERIALS USED
 GLASS
 PLASTICS
 PREFABRICATED
COMPONENTS
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5. BUILDING USES
 HOUSES & FLATS
 TRADITIONALLY 1 OR 2 STOREY HIGH
 BUILT FROM BRICK, STONE OR
TIMBER
 ALL HOMES BUILT TO BUILDING
REGULATIONS
 MONITORED BY BUILDING CONTROL
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6. CRITERIA FOR HOUSE BUILDING
 STRUCTUALLY SOUND
 RESISTANT TO MOISTURE
 THERMAL PERFORMANCE
 LOAD BEARING
 SOUND INSULATION
 ASTHETICALLY PLEASING
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7. WAREHOUSES & INDUSTRIAL
UNITS
 COMMERCIAL BUILDINGS
 OPEN SPAN BUILDINGS
 BUILT IN STEEL FRAMES
 CLAD WITH ALLUMINIUM
 ENCLOSED BOTH ECONOMICALLY
AND SAFELY
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8. RETAIL UNITS
 SHOPS & COMMERCIAL BUILDINGS
 LARGE OPEN SPAN
 PORTAL FRAME
 CAN BE ADAPTED FROM LARGER
HOUSES
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9. OFFICES
 CAN BE LOW OR MULTI STOREY
BUILDINGS
 OPEN PLAN
 SUB-DIVIDED INTO SMALLER
WORKING AREAS
 MUST INCORPORATE FIRE REGS. EG.
FIRE EXITS, ALARMS, SPRINKLERS
ETC.
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10. FORMS OF CONSTRUCTION
TIMBER FRAME
 WHAT ARE THE ADVANTAGES OF
PREFAB CONSTRUCTION?
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11. TIMBER FRAME BUILDINGS
 BEEN BUILT IN THE UK SINCE THE
1960’S
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12. TIMBERFRAME COMPONENTS
EXPLAIN THE PURPOSE
OF EACH OF THE FOLLOWING
COMPONENTS;
3. VAPOUR BARRIER
4. INSULATION QUILT
5. S/S WALL TIE
6. INSULATION MEMBRANE
7. SHEATHING BOARD
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13. TIMBER FRAME BUILDINGS
CROSS SECTION
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14. TIMBER FRAME
CONSTRUCTION
 TIMBER PANELS ( 100X50MM ) ARE
NAILED WITH PLYWOOD SHEETS TO
GIVE ADDED STRENGTH
 THESE PANELS ARE LOAD BEARING
AS THEY SUPPORT THE STRUCTURE
OF THE ROOF
 TIMBER STRUCTURE IS ENCLOSED
WITH EITHER BRICKWORK OR STONE.
THIS IS ALSO KNOWN AS CLADDING
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15. STEEL FRAME CONSTRUCTION
 LIGHT STEEL FRAME BUILDINGS
(SKELETAL) WERE DEVELOPED IN THE
1880’S FOR AMERICAN SKYSCRAPERS
USED FOR HOUSE CONSTRUCTION IN
THE EARLY 1920’S
 STEEL BECAME RELATIVELY
EXPENSIVE & NOT A VIABLE
ALTERNATIVE FOR HOUSING
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16. STEEL FRAME ADVANTAGES
 FACTORY MADE
 RELATIVELY EASY & QUICK TO
ASSEMBLE
 UNAFFECTED BY MOISTURE
 POTENTIAL LONG ROOF SPANS
 COMPOSITE DESIGN
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17. DISADVANTAGES
 DEFORMS AT HIGH TEMPERATURE
 NEEDS TO BE FIRE COATED
 ELECTRICTY CONDUCTOR- MUST BE
EARTHED
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18. CONCRETE FRAME BUILDINGS
 THIS SYSTEM WAS FIRST DEVELOPED
IN THE LATE 19TH CENTURY BY
WILLIAM E. WARD
 THE FIRST CONCRETE FRAME
SKYSCRAPER WAS THE INGALLS
BUILDING, BUILT IN CINNCINATTI
IN1904- 210FT HIGH
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19. CONCRETE FRAME
FORMS OF CONSTRUCTION
 IN SITU- STEEL OR WOODEN FORMWORK IS
REQUIRED TO CREATE THE COLUMNS AND
BEAMS. CONCRETE IS THEN POURED AND
THE SHUTTERING IS REMOVED ONCE THE
CONCRETE HAS GAINED ENOUGH
STRENGTH.
 PRE-CAST- PANELS ARE DROPPED IN BY
CRANE AND BOLTED TOGETHER TO FORM A
RIGID STRUCTURE
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20. ADVANTAGES & DISADVANTAGES
OF CONCRETE FRAME CONSTRUCTION
 ADVANTAGES- IN-BUILT FIRE PROTECTION
 MOULDED INTO ANY SHAPE
 HIGH STRENGTH IN COMPRESSION
 DO NOT REQUIRE A SECONDARY FINISH
 DISADVANTAGES-CRAINAGE REQUIRED
 REQUIRES INITIAL SUPPORT
 SKILLED WORKFORCE REQUIRED TO
ASSEMBLE
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