HISTORY OF TALL BUILDING

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1) Definition

DEFINITION OF TALL BUILDING
  • A SKYSCRAPER is a tall, continuously habitable building of many floors, usually designed for office, commercial and residential use.
  • Other names: High-rise building, Tower block, etc.
  • No official definition for High rise or low rise
  • However, up to 30 stories = Tower block or High-rise Beyond 50 stories = Skyscraper

2) Demand For Skyscrapers

  • Scarcity of land in urban areas
  • Increasing demand for business & residential space
  • Economic growth
  • Technological advancements
  • Innovations in Structural systems
  • Desire for aesthetics in urban settings
  • Concept of city skyline
  • Cultural significance & prestige
  • Human aspiration to build higher

3) City Skyline

CITY SKYLINE
  • A skyline is the artificial horizon that a city’s overall structure creates.
  • Skylines serve as a kind of fingerprint of a city

4) History

HISTORY OF TALL BUILDING
HISTORY OF TALL BUILDING ONE

5) Early skyscrapers

i) Ditherington Flax Mill (1796)

DITHERINGTON FLAX MILL
  • Located in England
  • Oldest iron framed building in the world
  • It is seen as the “grandfather of skyscrapers“
  • 5 story tall building.

ii) Home Insurance Building (1884)

HOME INSURANCE BUILDING
  • Location: Chicago, USA
  • First tall building to be supported, both inside and outside, by a fireproof metal frame
  • Height: 42m

iii) Flatiron Building (1902)

FLATIRON BUILDING
  • Located in New york
  • Considered to be a groundbreaking skyscraper
  • Steel-skeleton construction
  • 22 stories (285 feet) tall

6) Evolution of Skyscrapers

  • In 1852 Elisha Otis introduced the safety elevator
  • Steel & RCC frame instead of stone or brick

i) Elisha Graves Otis (1811 – 1861)

ELISHA GRAVES OTIS
  • American industrialist, founder of the Otis Elevator Company
  • In 1852 introduced the safety elevator
Challenges
  • Mobility (Elevator)
  • Materials (Steel & RCC frame, Curtain wall)
  • Heat (Air Conditioner, coated glass)
  • Speed of Construction (Prefabricated structure, kangaroo crane, jump forming)
  • Wind (inside frame to outside, extra skeleton, aero dynamic)
  • Earthquakes (flexible joints, taipe 101, polymer slurry)
  • Evacuation (fire resistant, refugee rooms, fire resistant duct for pumping fresh air)

ii) Willis Carrier (1876-1950)

WILLIS CARRIER
  • American engineer
  • best known for inventing modern air conditioning
  • Founder Carrier Corporation

7) Modern Skyscrapers

MODERN SKYSCRAPERS
  • Built with steel or reinforced concrete frameworks and curtain walls of glass or polished stone
  • Mechanical equipment such as water pumps and elevators.
  • 1930 onwards, skyscrapers began to appear around the world

8) Basic design considerations

  • It involves creating safe, habitable spaces in very tall buildings
  • Support self weight, resist wind & earthquakes & fire protection
  • Balance between Economics, engineering & construction management
  • Loading & vibration
  • Shear walls
  • Steel frame
  • Tube structural systems
  • Trussed tube & x-bracing
  • Bundled tube
  • The elevator conundrum

9) Economic rationale

  • High Land price in cities
ECONOMIC RATIONALE

10) Environmental impact

  • Steel, concrete and glass needed is large
  • Skyscrapers are energy intensive buildings
  • Skyscrapers have a long lifespan, for example the Empire State Building in New York City completed in 1931 and is still in active use
  • Consumes a lot of electricity (pumps, elevators, ventilation & AC, lighting)

11) World’s Top Skyscrapers

World trade center (1972-2011) in New York city (417 m, 110 floors)

WORLD TRADE CENTRE

Willis Tower (1974) in Chicago (442 m, 108 floors)

WILLIS TOWER IN CHICAGO

Burj Khalifa (2010) in Dubai, UAE (828 m, 163 floors)

BURJ KHALIFA AT DUBAI IN UAE

12) Future developments

  • Ping’an International Finance Center started in Shenzhen, China (115 floor, 660 m)
  • Wuhan Greenland Center started in late 2012 in Wuhan, China (124 floor, 636 m)
  • Shanghai Tower started on 2008 (127 floor, 632 m)
  • World one in Mumbai (442 m)

12) Conclusion

  • Tall structures always existed since historic time made by humans.
  • Many technological advancements happened in the structural systems, materials & construction technology.
  • Advanced technology lead to build even taller structures.
  • Human aspiration to build even taller structures shows “sky is the limit”.

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