design 318
high-rise study
K. M. Zakiur Rahman
Lutfi jahangir Chowdhury
Rony Saha
high-rise study | design 318
What? and how?
Local high-rise PICL – People’s Insurance Co. Ltd.
Foreign high-rises Petronas Towers
Dongbu Financial Centre
Site Analysis Agargaon Site
high-rise study | design 318
what
Most building engineers, inspectors, architects and similar
professions define a high-rise as a building that is
at least 75 feet (23 m) tall.
Buildings between 75 feet (23 m) and 491 feet (150 m) high are,
by some standards, considered high-rises. Buildings taller than
492 feet (150 m) are classified as skyscrapers. The average height
of a level is around 13 feet (4 m) high.
how
High-rise buildings became possible with the invention of
the elevator (lift) and cheaper, more abundant building materials.
Source | wikipedia.com
high-rise study | design 318
picl
Firm Vistaara Architects
Location 36 DILKUSHA C/A, DHAKA
Client People’s Insurance Co. Ltd.
Cost Undisclosed
Completion date 1998 - 1999
Site area | Height 17 kathas, Approx 164 ft
Core area percentage 22% of total usable area
PICL high-rise study | design 318
Plans – core and structure
Fire escape staircase
Toilets
Elevator cores
Punch
Fire escape staircase
Toilets
Elevator cores
Typical floor plan 4th – 15th
PICL high-rise study | design 318
Plans
Ground floor plan 18th floor plan
PICL high-rise study | design 318
Design phase
o Plan was derived from the circular site
o T configuration was used to cut heat and for light and ventilation
in the core area
o Circular planning was also used for uniform lighting
o Shading was designed according to the orientation
o Core consists of Lifts, Alternate Escapes, Electrical Room, Common
toilets and fire hydrants. It also has voids for positive pressure and
ventilation
o Not centrally air-conditioned during design phase
o Space left for concealing Split Type Air-conditioners
Space left for concealing air-conditioners
o Structural system – Octagonal and rectangular columns
and shear walls
PICL high-rise study | design 318
Climatic considerations
Three types of
elevation treatments
View from the core
PICL high-rise study | design 318
+ and - ves
o Low heat gain
o Circular planning allows efficient light distribution
o Has fire rated escape stairs with +ve pressure feeds
o Concealing of Air-conditioning Units
o Air cooled central Air-conditioning does not need
a separate cooling tower Panorama of double height space at lobby
o Basement has no accommodation for toilets as the
space is used for ramp
o Escape stairs are also used as the main stairs
o Core is not separated by fire rated doors on all levels
o parking entrance requires a detour to back of building
o Stair in design phase used to release pressure on ground and first
floor circulation has not been finished
PICL high-rise study | design 318
Images
Fire Escape and primary Staircase Unfinished Staircase
PICL high-rise study | design 318
Images
View from roof
Air cooled Central Air-Conditioner
high-rise study | design 318
Petronas
Towers
Architect Ceaser Pelli
Location Kuala Lumpur, Malaysia
Client Kuala Lumpur City Centre Holdings
Cost Undisclosed
Completion date 1998
Area | Height 2,345,680 sq ft, 1,479 ft 88 Floors
Core area percentage -
Source | Phaidon Atlas
Petronas Towers high-rise study | design 318
Plans – core and structure
Toilets
Fire escape staircase
Toilets
Elevator cores
Typical floor plan of South Western tower
Petronas Towers high-rise study | design 318
Other Drawings
o The foundation under each tower is a
4.5 meter thick, 32,500 tone raft
containing 13,200 m³ of grade
60 concrete, supported by 104
barrette piles driven into the soft
rock
o A steel sky bridge connects the
towers 170m (558 feet) above the
ground at the 41st and 42nd floors
Section Elevation Conceptual Derivation of plan
Petronas Towers high-rise study | design 318
Design phase
o Plan was derived from symmetric Muslim Architecture
o Two Squares have been superimposed by rotating 450
o Curved pointed bays used to maximize interior space
o The Eight pointed star plan resembles the plan of a minar for a
mosque
o It has a slender height to width ratio of 9.4
o A connecting bridge has been used in mid height to stabilize as well
as for an alternate escape route through the adjacent building in
case of emergencies
o Made up of high strength concrete and glass curtain walls
o The circular plan allows for a floor area totally free of interior
columns
o Stainless Steel Diffusers act as shading form the equatorial sun
Petronas Towers high-rise study | design 318
Images
Connecting Bridge Exterior Façade
high-rise study | design 318
Dongbu
Financial Centre
Firm Kohn Pedersen Fox Associates
Location Seoul, South Korea
Client Dongbu Corporation
Cost Undisclosed
Completion date 2002
Area | Height 636,432 sq ft, 495ft 35 Floors
Core area percentage -
Source | Architecture + | Phaidon Atlas
Dongbu Financial Centre high-rise study | design 318
Plans – Core and Structure
Toilets
Fire escape staircase
Elevator cores Fire escape staircase
Typical floor plan
Dongbu Financial Centre high-rise study | design 318
Other Drawings
East South West NOrth
Section
Dongbu Financial Centre high-rise study | design 318
Design phase
o The design had to be iconic and different from other mostly
rectangular buildings in the boulevard
o Design was derived from traditional Korean handicrafts by layering
the core vertically and building laterally
o 60% of site area had to be set free due to restrictions in law
o According to Korean traditional Architecture the office spaces were
located in the south
o The North façade mostly has a view towards the Han River
o All of the external walls are curtain walls made of mullions of steel
o Two of the entrances are located on the south and eastern sides of
the building
Dongbu Financial Centre high-rise study | design 318
Images
Views form eye level Interior View
Site Analysis | Agargaon Site high-rise study | design 318
Analysis
