Case Study

on
Mixed Use building

"Kohinoor Square Tower"

Presented by:
Usman Asghar
Mehak Fatima
Macro View of the Site
 CLIMATE OF MUMBAI

• The Climate of Mumbai is a tropical wet and

dry climate.
• Mumbai's climate can be best described as
moderately hot with high level of humidity.
• Its coastal nature and tropical location ensures
temperatures won't fluctuate much throughout
the year.
• The mean average is 27.2 °C
 Introduction
• Construction Period: 2009-2015
• Architect: SSA Architects, Mumbai
• Client: The Kohinoor Group
• Program: Mixed-Use
• Site Area : 4.6 Acres
• Plot Area: 18,615 sq.m , 200370 sqft
• Floor Area: 50,000 sq.m , 538195 sqft for commercial
• Height: 666 ft Main building,
465 ft Residence Building
• Floor counts: 52 stories, 28 stories
• Cost US$: 0.33 billion
• Lifts/Elevator: 40 main building + 8 in residential building
• OBJECTIVE: To study planning and design of Mixed-use mid rise in
context to worldwide
• The site is surrounded by a dense Low-Rise residential areas hence
its Tallest structure in vicinity.
• There are many parks and schools as well near to the site
Concept
• Inspired by the concept of town square from the olden days

An iconic structure drawing inspiration from the diamond.

Site Plan
Sun Path Orientation
This Building is divided in Two main parts

• Main Skyscraper (52 floors)

First 5 floors used as: High-end Shopping Mall
Remaining 47 floors used as: Five Star Hotels
and Commercial Offices.
• Residential Skyscraper (35 floors)
First 15 floors of the residential building is used
as: parking garage for both buildings.
And 20 floors for the residences.
-Parking provided for 2000 cars with super efficient
driveway and personalized access controls.
• Brands Shops
•

Retail Plans
Jewellery shops
• Makeup shops
• Grocery Stores
• Stationary Shops
• Food Court
• Hospital
Retails • India's largest retail brands, Westside, Pantaloons and Waman
Hari Pethe Jewellers
Interior
•The Central Core is surrounded by the office spaces.​
•There are segregated office space from 6th to 14th
floor with toilets to each
office and common toilets also provided on all these floor.​
•The Central Core is surrounded by the office spaces and
refuge areas (at 24 meter of height) ​.

Floor Plan 6th

• 6 on 17th floor which is

refuge floor
Floor Plan 5th
• 1 lobby of 4 lifts serving
the offices of 6th to
14th floor.​
• 1 lobbies of 6 lifts
Floor Plan 4th serving the offices of
6th to 25th floor.
Chambers from the
central core
Floor Plan 7th Floor Plan 8th
Floor Plan 9th Floor Plan 10th
 Floor Plan 11th Floor Plan 13th

Floor Plan 12th

• 13 stories of parking in below floors.

 •Spaces between the lifts
Floor plan 25th where a lift lobby is not
provided are
used as toilets with dust at
• 2 lobbies of 6 lifts serving the either side: 2 lifts from this
upper floors of buildings pack of 6
25th to 52th floors.​ are assessable to lower
floors a well .​
•1 lobby of 4 lifts serving
levels 1st to 24th .​
•There is a lift bank at 24th
floor.
•2 services
lifts travelling Throughout
the building .​
•2 Stair cases are also
placed in the core .

• 25th floor is a lift bank.

• 3 Lobbies of 6 Lifts serving levels 25th to 39th​
 • 132 residential units .
• 8 units on each floor.
• At top few floors 4 units on each floor.
• Central Core :
Floor Plans • 3 lifts and 1 service lift
• 2 Stairs are also placed in the core.
• 2 services lifts travelling throughout the building
3 Bedroom Each floor height for residential site = 16'-17'

Apartment designs Each floor height for offices and mall area = 12'5"-13'
 Interior Views

• LOBBY
• ATRIUM
• HOTEL WALKWAY
Interior Views
• BEDROOMS
• OFFICES
• LIVING AREA
Facilities
 Material Used

• The façade consists of faceted unitized aluminium

curtain walls with provisions for high performance
double glass façades on the tower.
• Diamond edges of the building having aluminium
flashing with LED lighting are the unique feature
and make it complicated façade design.
• All the Glasses are articulated glasses & can sustain
design wind pressure of 4.5 to 5.0 kPa.
• The building design makes environment friendly,
using technologies such as floor-to-
ceiling insulated glazing to contain heat
and maximize natural light, and an
automatic daylight dimming system.
 Glass Details

• The type of glass used were Spandrel glass

as DGU of 30mm (6mm HS + 18mm Air gap +
6mm HS) and Vision glass VLT – -36 per cent.
• As per architectural intent, Grey appearance
of glass was used.
• The glass was selected on the basis of
higher external Reflection value & Lower
internal reflection value.
• The glass deflection in four side support
condition is limiting to L/90 or maximum of
24mm. The Atrium glass is supported on
patch fitting and spider fitting limiting glass
deflection is to be L/60 of longer span or
25mm maximum. For the Perforated
aluminum structural member deflection is
limiting to L/175 and for perforated
aluminum panel deflection limiting to L/60.
 FOUNDATION

• The combined pile raft

foundation system is used .
• It is a geotechnical
composite construction
that combines the bearing effect of
both foundation
elements raft and piles .
• The pile raft foundation system has
recently been
• widely used for many structures ,
specially in high-rise buildings
Sustainable features
• 15 double height landscaped gardens and more than a dozen height terraces which act as
refreshing breakout zones
• The building design make it environmental friendly , using technologies as floor-ceiling insulated
glazing to contain heat and maximize natural light, & an automatic daylight diming system.
• The tower also features a grey water system, which captures rainwater for reuse.
sustainability a gold (leed) certification from green building
Structural System
• The structure comprises a concrete core
and posttensioned concrete slab and spandrel
beams.
• The average center to center distance between
columns is 31 ft.
• The column is of 1.8 x 1.8 m , 5.9 ft by 5.9ft .
• The tube system concept is based on the idea
that a building can be designed to resist
lateral loads.
• This assembly of columns and beams forms
a rigid frame that amounts to a dense and strong
structural wall along the exterior of the building.
Sectional
Details of
MEP
 Pros Cons

• Prime location • Leakages due to rain in the newly constructed Kohinoor square mall
• Iconic views • Car driving space at back.
• An architectural masterpiece. • You need to come down from first floor from service stairs as lift dont
work.
• Pillarless architecture
• Service stairs are extremely filthy with labourer serving pan stains or
• Fastest vertical transmission even stinks at corners extremely bad experience
• Ample parking • if you are arriving by car. Walk in front side is good and security is
quiet prompt.
• Spectacular glass facade is environment-friendly.
• Overall there is lot of scope for improvement of this premise.
• Congestion free location
• Retail and office building has blocked the view of the sea at west side
• Economical design with advance technology
• On site waste water treatment
• Black and grey water reuse
• High efficient ventilation system
• Green roof
• Daylight harvesting and diming control