A case study on local building.Analysis on South Breeze Center & Peoples Insurance Co. Ltd. Office Building.

1. HIGHRISE BUILDING
ANALYSIS IN LOCAL
CONTEXT

2. Case Study On Local Building
South Breeze Center
Project : Commercial
Land area : 9.9 katha (7128 sq. ft. )
Number of units : ground + 13
unit size from
2,777 sq. ft.- 3,512 sq.ft.
Address : Road 11, Building 5, Block g,
Banani,Dhaka -1213
Architect : Mamnoon M. Chowdhury
Mahmudul Anwar Riyaad
Deanna Alam

3. Location , Roads & network
Soil condition-Plain Land
Land - Flat
Vegetation- Almost all kind of
tree but mostly big
trees
Wind Flow – South-East to
southern In summer
North-West
to northern in winter
Noise - Sub road from North
Access- Site approach from North
side through a connection
with main road
Traffic Flow- Main mode of transport
is private car , cng , rickshaw
Site Analysis

10. Circulation -
Commercial
Space
Lobby
Fire
Stair
Toilet
Lift
Stair

11. Structure -

13. Environment -

16. HVAC – Split system

17. S W O T –
Strength Weakness opportunity Thread
-Electric system
-Regular fire
system check
-Proper maintenance
-Fire exit stair
-Lack of supplying
proper oxygen
-Lack of natural
ventilation
-No waiting zone for
outsider in entry
-Natural ventilation
-Recreational Space
- Open Spaces
-Dense Site
- Natural Ventilation

18. HVAC system(Heating , Ventilation , Air conditioning )

19. HVAC system of IDB Bhavan

23. Project : Commercial
Built Area : 20,000 Sq. M.
Address : 36 Dilkusha c/a,Dhaka
Architect : Mustapha Khalid
Md. Foyez Ullah
Shahzia Islam
Designed : 1998
Completed : 2006
PEOPLES INSURANCE CO. LTD.
OFFICE BUILDING

24. Design Concept
The proposed building is designed to
respond to the local climate and the site
configuration. These two constraints
ultimately are conceived in taking help to
conserve the energy and the efficient
usage of space. Since the evolved
configuration of the building is circular in
plan it ensures natural lighting to the
workstations wherever it be located. All
the East-West oriented windows have
external elements to provide sun shading.
The Southwest is dressed in a rotated ‘T’-
profile shading device, which cuts the
most unpleasant heat of the day and at
the same time, provides space for cooling
appliances. The Southeast is dressed in a
‘crate’-like skin reflects proper response to
this climatic part of the day where the
façade faces moderate solar gain. This
type of skin of the building, which clearly
manifests the differential behavioral
pattern of the local climate also, allows
full-height glazing to enhance the quality
of natural light and ventilation in the office
workspaces. Lift cores and toilets are
located on the Northwest and lift lobbies
have natural light and ventilation.

25. Design Considerations
1. The Entrance:
The most logical part of the site is
considered as the main entrance to
the building though unconventional
for the formal approach for such
morphology. The double-height
entrance foyer drifts inside the
Entrance Hall thus provide a street
elevation for passersby. Small offices
directly related to public affairs
supplement the ground floor
activities. A separate stair is provided
to facilitate the easy access to 1st
floor, which in turn shall reduce the
pressure on the elevators.
2. The Core:
Planning: The technical essence of high-rise building lies with the
appropriate and optimal design of the service core. The core of
proposed PICL building shares only 22.27 percent of the total usable
area in each floor. It is bundled with Lifts, Alternate Escapes, Electrical
Room, Common Toilets and Fire Hydrants.
Natural Light and Ventilation:
Since the building is not centrally air-conditioned, the toilets shall
be naturally lit and ventilated though the light-shaft. The natural
light and ventilation governed the placement of core with respect
to the other spaces. The light shaft facilitates the toilets a well as
the lift lobby.
Toilets:
The flexibility of the toilet part of the core allows separate toilets
when single or even divided into two offices. It is deliberately
opted that there will be only common toilets when the floor is
divided into four quadrants.
Fire and Safety:
From numerous case studies it is explicit that any unprotected
vertical shaft connecting different floors acts as chimney during
fire hazards. Keeping this in view the proposed two stairs are not
only kept apart from the lift lobby but also encased with fire rated
components. The advantage of this approach is of two folds;
firstly the stairs shall not act as chimney and secondly the users
of the building shall use the stairs for regular purposes which in
turn help them. keeping in mind the easy egress during fire. Both
the alternate escapes are so located that it is accessible from all
parts of the floor even when divided into four offices with out
crossing the lift lobby.

26. 3.Air-conditioning:
As per requirements the proposed PICL possesses the potentiality of
being air-conditioned by Split type Air conditioners. Since the
maximum blow length of fan-coil unit ranges from 35’-40’, it is not
practical to provide any single space for the out door units. Such
single-space-solution in different buildings of Dhaka has been proven
wrong. In the proposed design it is considered that out-door units
shall be installed all around the building as much as possible with in
the blow-length. The hiding of the units follows this prime
consideration. The sections show how the out door units are
concealed from vision.
Area showing spaces for
fan-coil units of Split Type Air
conditioners

27. 4.Structural System:
The proposed PICL building is conceived as Reinforced Cement Concrete Structure derived from the traditional
construction methods prevailing in Bangladesh. It is expected that it would use high strength concrete and steel in
obtaining large spans.
The type of foundation of the building yet to determined from the type of soil of that particular area. To resist lateral load
the PICL building is soundly composed with adequate shear walls.