Fazlur Rahman Khan was a Bangladeshi-American structural engineer known as the "father of tubular designs" for skyscrapers. Some of his most notable works include designing the 100-story John Hancock Center and 110-story Sears Tower in Chicago. Khan pioneered the use of tube structures for tall buildings, which are now widely used. He received numerous awards for his innovations and made important contributions to computer-aided structural design.

1. Seyam rayhan
Dept. of finance

2. Fazlur Rahman Khan

3. Fozlur Rahman Khan was a Bangladeshi-
Americanstructural 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).

4. Fazlur Rahman Khan was born 3 April 1929
in Dhaka.
His father Abdur Rahman Khan was a high
school mathematics teacher and textbook
author.

5. 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)

6. 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.

7. 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

8. What is skyscraper?
• A skyscraper is a tall, continuously habitable
building having multiple floors

9. Burj khalifa is a example of skyscraper

10. 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

11. 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.

12. John Hancock Center

13. The John Hancock Center is a 100-
story, 1,127-
foot supertall skyscraper at 875
North Michigan Avenue, Chicago.

14. Sears Tower

15. 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.

16. 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

17. 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.

18. Types of tube
• Framed tube
• Trussed/Braced Tube
• Tube in tube
• Bundled tube
• Outrigger and belt truss
• Concrete tube structures
• Legacy

19. 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.

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

21. 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.

22. 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.

23. 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.

24. 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.