Seyam rayhanDept. of finance

Fazlur Rahman Khan

Fozlur Rahman Khan was a Bangladeshi-

American structural engineer and architect who initiated important structural systems for skyscrapers.

Considered the "father of tubular designs" for high-rises.

Khan was also a pioneer in computer-aided design (CAD).

Fazlur Rahman Khan was born 3 April 1929 in Dhaka.

His father Abdur Rahman Khan was a high school mathematics teacher and textbook author.

Khan attended Armanitola Government High School, in Dhaka.

After that, he studied Civil Engineering in Bengal Engineering College Shibpur in India

AND

ultimately received his Bachelor of Civil Engineering degree from Ahsanullah

Engineering College. (Now BUET)

In three years Khan earned two master's degrees — one in structural

engineering and another one in theoretical and applied mechanics

and

a PhD in structural engineering.

Innovations

• Khan discovered that the steel frame structure that had dominated tall building design and construction so long was not the only system fitting for tall buildings, marking the beginning of a new era of skyscraper construction

What is skyscraper?

• A skyscraper is a tall, continuously habitable building having multiple floors

Burj khalifa is a example of skyscraper

Career

• Khan helped introduce design methods and concepts for efficient use of material in building architecture. His first building to employ the tube structure was Chestnut De-Witt apartment building

In 1955, employed by Skidmore, he began working in Chicago, United States.

During the 1960s and 1970s, he became noted for his designs for Chicago's 100-story John Hancoc Center

and

110-story Sears Tower, the tallest building in the world in it’s time.

He is also responsible for designing notable buildings in Bangladesh, Australia and Saudi Arabia.

John Hancock Center

The John Hancock Center is a 100-story, 1,127-

foot supertall skyscraper at 875 North Michigan Avenue, Chicago.

Sears Tower

The Willis Tower, built as and still commonly referred to as Sears Tower, is a 110-story, 1,451-foot skyscraper. The Willis Tower is the second-

tallest building in the United States and the 14th-tallest in the world.

Innovations in details

• Khan discovered that the rigid steel frame structure that had dominated tall building design and construction so long was not the only system fitting for tall buildings, marking the beginning of a new era of skyscraper construction

Tube structural systems

Khan's central innovation in skyscraper design and construction was the idea of the "tube" structural system for tall buildings, including the "framed tube", "trussed tube" and "bundled tube" variations.

Most buildings over 40-stories constructed since the 1960s now use a tube design derived from Khan's structural engineering principles.

Types of tube

• Framed tube

• Trussed/Braced Tube

• Tube in tube

• Bundled tube

• Outrigger and belt truss

• Concrete tube structures

• Legacy

Other architectural work

• Khan designed several notable structures that are not skyscrapers. Examples include the Hajj terminal of King Abdulaziz International Airport, completed in 1981.

List of buildingsBuildings on which Khan was structural engineer include:DeWitt-Chestnut Apartments, Chicago, 1963Brunswick Building, Chicago, 1965John Hancock Center, Chicago, 1965–1969One Shell Square, New Orleans, Louisiana, 1972140 William Street (formerly BHP House), Melbourne, 1972Sears Tower, Chicago, 1970–1973U.S. Bank Center, Milwaukee, 1973Hajj Terminal, King Abdulaziz International Airport, Jeddah, 1974–1980King Abdulaziz University, Jeddah, 1977–1978Hubert H. Humphrey Metrodome, Minneapolis, Minnesota, 1982One Magnificent Mile, Chicago, completed 1983Onterie Center, Chicago, completed 1986United States Air Force Academy, Colorado Springs, Colorado

Awards

• Middlebrooks Award (1972) and the Ernest Howard Award (1977) from ASCE; the Kimbrough Medal (1973) from the American Institute of Steel Construction; the Oscar Faber medal (1973) from the Institution of Structural Engineers, London; the International Award of Merit in Structural Engineering (1983) etc.

Charity

• In 1971 the Bangladesh liberation war broke out. Khan was heavily involved with creating public opinion and garnering emergency funding for Bengali people during the 1971 Bangladesh Liberation War. He created the Chicago-based organisation known as Bangladesh Emergency Welfare Appeal.

Death

• Khan died of a heart attack on 27 March 1982 while on a trip in Jeddah, Saudi Arabia, at the age of 52. He was the general partner in SOM, the only engineer holding that high position at the time. His body was returned to the United States and was buried in Chicago.

Reference We collected those information via internet and some of our friends.

Limitation

We find out some problems and limitations.

Time is one of that.

Knowledge limitation.