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Mass
housing: An overview of recent experience in Mumbai
N.N.
Shrikhande and P.L. Bongirwar
Shortage
of housing accommodation is assuming an alarming proportion
particularly in the Indian metropolitan cities as
a result of unprecedented rise in population and unending
influx of migrants. Mass housing construction carried
out on a war footing could help in mitigating the
problem to a great extent. A totally innovative and
yet pragmatic approach, encompassing considerations
related to locations of new construction, provision
of transit camps, financial and operational incentives
and finally adoption of innovative construction technologies,
is highly essential and the same could lead to expeditious,
cost-effective and quality construction. In this paper,
the authors describe the housing scenario in India
- with particular reference to Mumbai, along with
the measures taken in the past to tackle the same.
The various technologies that were adopted for mass
housing construction in Mumbai and which resulted
in speedy completion of some 49,000 tenements in a
short period are described. The authors argue that
a strong political will, provision of financial and
operational incentives and adoption of innovative
technologies of construction could go a long way in
mitigating the housing problem.
Housing
scenario in Mumbai
D.L.
Desai
The
Builders' Association of India (BAI) has undertaken
a study of housing requirements in mega cities. This
paper* deals with the housing scenario in Mumbai and
provides researched data on current housing requirements.
As per the 2001 census figures, the total numberof
pucca residential houses having concrete roof were
1,201,552. Thereafter, based on the records of the
number of houses sanctioned by the municipal corporation
and the number of houses for which occupation certificates
were granted by Slum Rehabilitation Authority (SRA)
from 2002 to 2004, Mumbai's present housing stock
is estimated. The current requirement of housing in
Mumbai finally works out to 1.17 million. The author
also enlists various factors that would generate further
demand in housing.
Modular
aluminium formwork for faster, economical and quality
construction
Ketan
Shah
The
aluminium formwork system has been found suitable
for mass housing construction under the slum rehabilitation
scheme in Mumbai. The modular nature of the system
enables speedy, economical and quality construction.
In this paper, the author describes the components
of the system and the methodology of its application.
A typical construction cycle is also explained with
the help of an example.
Conventional
vis-á-vis aluminium formwork system: Techno-economic
evaluation
P.L.
Bongirwar, P.H. Srinivasachar, Samir D'Monte and Sameer
D. Shah
The
use of pre-engineered aluminium formwork system,known
by tradename "Mascon" or "Mivan",
is found to be advantageous in view of its higher
speed of construction, better quality and economy,
when compared to the conventional building construction
using column-beam-slab frame system. The authors highlight
the advantages/disadvantages of the aluminium formwork
system and demonstrates that the box-type structural
arrangement is superior in resisting horizontal forces
like the wind and earthquake. A large number of repetitions
in the use of aluminium formwork system ensures overall
economy, which is demonstrated by examples.
Indigenisation
of mass housing technology
V.G. Jana and Y.P. Kajale
In order
to meet the growing needs of mass housing, it is essential
to adopt the concept of total industrialisation of
housing construction. The authors highlight the efforts
made by their organisation in popularising the concept
of industrialisation of housing construction in India.
They describe in detail the "3-S" system
of housing construction. This system which uses prefab
elements and certain level of cast-in-situ construction
at project sites, has been evolved to cater to the
typical conditions prevailing in India. The authors
also describe their experience in using the tunnel-form
technology.
Large
panel precast construction for speed and economy
A.B.Shah
The use
of large precast prestressed concrete panels is one
of the promising alternatives for housing. It is particularly
useful for mass housing as the system can be used
for interior/exterior walls, floors, roofs, staircases,
water tanks, etc without much work at site resulting
in considerable savings in time and cost too. The
author discusses the design principle involved and
presents a case study illustrating the use of precast
panel system for a slum rehabilitation project.
Providing
fast-track transit shelter to project-affected people
S.R. Telang
The paper
briefly describes the fast-track construction work
of providing transit accommodation to project-affected
people under the slum rehabilitation scheme in Mumbai.
Nearly 3,600 tenements were constructed in a record
period of three months. Extensive use of precast concrete
and conducting different activities simultaneously
helped in completing the challenging job in a short
time.
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