3. AIM OF OUR
PROJECT..
Imposing Earthquake
and Wind loads on the
building.
Analyzing the behavior
of structure after
imposing earthquake and
wind loads.
Comparing the structures
on the basis of their
economy.
4. Introduction
Wind is essentially the large scale Horizontal
movement of free air. It plays an important role in
design of tall structures because it exerts loads on
Building.
High Rise Building-A building Having height more
then15m As per National Building Code 2005 of India
is called High Rise Building
5. The materials used for the structural system of high-
rise buildings are reinforced concrete and steel.
Most North American style skyscrapers have a steel
frame, while residential blocks are usually
constructed of concrete. There is no clear definition of
any difference between a tower block and a
skyscraper, although a building with fifty or more
storeys is generally considered a skyscraper.
High-rise structures pose particular design challenges
for structural and geotechnical engineers, particularl
y if situated in a seismically active region or if the
underlying soils have geotechnical risk factors such as
high compressibility
6. An earthquake is the vibration, sometimes
violent to the earth’s surface that follows a
release of energy in the earth’s crust. This
energy can be generated by a sudden
dislocation of segments of the crust, by a
volcanic eruption or even by a manmade
explosion.
In the process of breaking, vibrations called
seismic waves are generated. These waves
travel outward from the source of the
earthquake along the surface and through the
earth at varying speeds depending on the
material through which they move.
EARTHQUAKE LOADING:
7. The RC frame participates in resisting earthquake forces.
Earthquake shaking generates inertia forces in the
building, which are proportional to the building mass. Since
most of the building mass is present at the floor
levels, earthquake induced inertia forces primarily develop at
the floor levels.
These forces travel downward through slabs to beams, beams
to columns and walls and then to foundations from where
they are dispersed to the ground. As the inertia forces
accumulate downward from the top of the building, the
columns and walls at the lower storey experience higher
earthquake induced forces and are therefore designed to be
stronger than the storey above.
EFFECT OF EARTHQUAKE ON HIGH
RISE BUILDINGS:
8. PROGRESS
SO FAR…
• Reviewed papers on
high rise buildings.
• Designed the layout of
the building.
• Design of structural
elements manually.
• Detailing of structural
elements.
Previous Semeter
14. Analysis
STATIC LOAD/REACTION/EQUILIBRIUM SUMMARY FOR CASE NO. 1
LOADTYPE DEAD TITLE SELF
CENTER OF FORCE BASED ON Y FORCES ONLY (METE).
(FORCES IN NON-GLOBAL DIRECTIONS WILL INVALIDATE RESULTS)
TOTAL APPLIED LOAD ( KN METE ) SUMMARY (LOADING 1 )
SUMMATION FORCE-X = 0.00
SUMMATION FORCE-Y = -72098.50
SUMMATION FORCE-Z = 0.00
SUMMATION OF MOMENTS AROUND THE ORIGIN-
MX= 901231.18 MY= 0.00 MZ= -720985.43
15. Beam Design
B E A M N O. 80 D E S I G N R E S U L T S
M25 Fe415 (Main) Fe415 (Sec.)
LENGTH: 2857.1 mm SIZE: 300.0 mm X 500.0 mm COVER: 40.0
mm
SUMMARY OF REINF. AREA (Sq.mm)
SECTION 0.0 mm 714.3 mm 1428.6 mm 2142.9 mm 2857.1
mm
TOP 279.58 0.00 0.00 279.58 279.58
REINF. (Sq. mm) (Sq. mm) (Sq. mm) (Sq. mm) (Sq. mm)
BOTTOM 279.58 279.58 279.58 279.58 0.00
REINF. (Sq. mm) (Sq. mm) (Sq. mm) (Sq. mm) (Sq. mm)
16. Shear R/F
SHEAR DESIGN RESULTS AT DISTANCE d (EFFECTIVE DEPTH)
FROM FACE OF THE SUPPORT
SHEAR DESIGN RESULTS AT 700.0 mm AWAY FROM START
SUPPORT
VY = -14.86 MX = 0.00 LD= 3
Provide 2 Legged 8í @ 300 mm c/c
SHEAR DESIGN RESULTS AT 700.0 mm AWAY FROM END
SUPPORT
VY = -19.24 MX = 0.00 LD= 4
Provide 2 Legged 8í @ 300 mm c/c
17. Column Design
C O L U M N N O. 1484 D E S I G N R E S U L T S
M25 Fe415 (Main) Fe415 (Sec.)
LENGTH: 3000.0 mm CROSS SECTION: 500.0 mm X 500.0 mm COVER:
40.0 mm
** GUIDING LOAD CASE: 3 END JOINT: 816 SHORT COLUMN
REQD. STEEL AREA : 2000.00 Sq.mm.
REQD. CONCRETE AREA: 248000.00 Sq.mm.
MAIN REINFORCEMENT : Provide 20 - 12 dia. (0.90%, 2261.95 Sq.mm.)
(Equally distributed)
TIE REINFORCEMENT : Provide 8 mm dia. rectangular ties @ 190 mm c/c
18. 1.) Design of the RCC structure by imposing
Earthquake and Wind loads.
2.) Design of staircase.
3.) Design of a hybrid structure consisting of RCC
and Steel structural elements.
5.) Cost estimation of the three structures on cost
estimator.
6.) Comparing the three structures on the basis of
economy.
FUTURE
PROSPECTS:
19. This topic which is design and analysis of high rise buildings
helps in expanding our knowledge in the field of design and
analysis. With incomes growing and large numbers of people
moving to urban areas, the demand for housing is on the
upswing. Due to high construction costs and non-availability of
land at preferred locations, people opt for apartments. Today’s
upwardly mobile live and work in high-rise buildings with
terraces and balconies overlooking the cityscape.
Moreover, designing the high rise structure for wind and
earthquake loads help us gaining thorough knowledge regarding
these loads as consideration of these loads is a must while
designing a high rise structure in a earthquake prone area.
USAGE OF THE
PROJECT IN
OUR CAREERS:
20. REFERENCES..
A.K CHOPRA for earthquake loads.
RCC design by N.PILAI.
Structural Analysis by hibbeler
RCC design by A.K Gupta
