DESIGN PROJECT
ON
BOUYANT HOME
Submitted by,
Group no: 16
Department of civil engineering
Carmel Collage of Engineering and
Technology, Punnapra, Alappuzha.
CONTENT
INTRODUCTION
NEED AND SCOPE
COMPONENTS
METHODOLOGY
ADVANTAGES
CONCLUSION
AKNOWLEDGEMENT
INTRODUCTION
“Floating" term in the foundation engineering is used when the soil
beneath the footing does not experience any extra load, as the load of
the structure is equal or less than the soil displaced. Floating houses
are similar in concept and can be defined those houses which are
constructed on water in a way that the load of the structure is equal or
less than the uplift force of the water which helps in floating the house
on water. Floating houses are now constructed which float only
during floods. There are two types of floating houses, one which
permanently float and other that float only during flood waters else
get placed on ground, particularly during dry season when there is no
water.
NEED AND SCOPE
India has a huge coastal area as well as large flood prone areas like
Bihar, Assam and in many other states where almost every year,
public face difficulty due to floods and loss of lives and property
takes place. In case, the principle of construction of floating houses is
adopted in which the houses would rise during floods and subside
down during dry conditions, loss of lives and property can be avoided.
Simple techniques based on telescopic arrangements should be
designed for requirements. Therefore, research and development can
be taken up as model projects for developing such designs. In the
starting, life line buildings in the flood prone areas can be constructed
with such techniques. These buildings will function even during
period when they remain cut off due to floods and have no external
electricity and water.
It is ideally suited to areas of high flood-risk or if there is uncertainty
regarding future flooding levels, as well as in historical or sensitive
landscape settings where more heavy-handed solutions would be
unacceptable. It is cost effective and eco friendly. Green building
concept has to be followed in the floating houses which use non
conventional resources for energy, make use of waste products, and
recycles the water.Net zero energy buildings are more useful as they
do not require additional energy from external source and total energy
demand is met from on site generation power.
COMPONENTS
 vertical guidance post: It prevent the house from going
anywhere except straight and down, and a structural sub-frame
that ties everything together. It is made of galvanized iron, it
supports the building to raise up to 10-15 feet.
 EPS (Expanded polystyrene): Polystyrene is a synthetic
aromatic polymer made from the monomer styrene, a liquid
petrochemical. Polystyrene can be rigid or foamed. General
purpose of polystyrene is clear hard and brittle. It is very
inexpensive resin per unit weight.
Density
: 1.5 g/c3
Melting point: 240oC
It is a very light weight material.
 Rexwall composite panel: Structure made of three layers, a
low density core and thin skin layer bonded to each side it is
used in application where a combination of high structural
rigidity and low weight is required. The developed sandwich
plate is laminated on both sides by special process with
different cores. A flame retardant has been added to ensure that
the material can complies with fire safety standard. A carefully
co-ordinated process gives the plates a high measure of
strength to produce a strong insulating wall that is resistant to
dynamic stresses with a surface that has the final structure of a
facade.
 Concrete pontoon: Thick covered layers of strong high quality
concrete protect the reinforcement, delivering the longest life
time of all steel reinforced concrete pontoons on the market
today. The All-concrete represents the latest know-how and
design of the marine tech pontoon portfolio. It is light and
inexpensive but still gives a very long service life. It’s
innovative end to end connection box mooring wells and lifting
system are all rust-proof
 Medium density fibre: It can be used in floor as well as wall.
Its thickness should be in between one or one and half inches.
 Gypsum board: It is pressed between two thick sheets of
paper, it is used to interior walls and ceilings.
METHODOLOGY
When flooding occurs, the house floats to as, high a level as is
necessary to remain safely above water, then settles back into place as
the water recedes.
Amphibious architecture is a sustainable flood mitigation strategy that
allows an ordinary structure to float on the surface of rising flood
water rather the succump inundantion. A buoyancy system beneath
the house displaces water to provide floatation as needed, and a
vertical guidance system allows the rising and falling house to return
to exactly the same place upon the descent. Amphibious architecture
is a flood mitigation strategy that works in synchrony with a flood
prone region’s natural cycles of flooding rather than attempting to
obstruct them.
The Amphibious Home is built in a concrete cradle, with steel support
posts running up the sides of the home to eliminate the possibility of
horizontal movement during a flood event. The dock that the home
rests in is made of steel sheet piling with a mesh base that allows
water to drain away naturally as the flood waters recede. The dock
that the home rests in is made of steel sheet piling with a mesh base
that allows water to drain away naturally as the flood waters recede.
In order to be buoyant, weight is a factor, so typically, these homes
are built with timber. Stone or steel is simply too heavy for this type
of construction, and the concrete base that the home rests on is
actually a polymer foam that’s clad in concrete, providing all the
stability, but at a fraction of the total weight.
Pictorial representation
ADVANTAGES
The major advantage of Float house is that the residents can
stay in home during flood. Buoyant foundation project has
proved it can withstand extreme flooding by fitting the EPS
block to the existing house. Low density but it gives high
strength. It will not break down so it will not spread into
surrounding soil. It can be installed by hand using simple tools
so this eliminates the investment and operation costs of heavy
machinery. Geofoam is quick to install and can be installed
during any type of weather. The LIFT house has proved low cost
amphibious homes for Bangladesh people. Using of low cost
material and locally available material can improve the
vernacular character of the place and also efficiency of the
structure.
LIMITATION
 For a building to be moved successfully, all structural members
and their connections must be able to withstand the physical
stresses.
 support of deep foundation may undergo settlement due to the
earth pressure it is subjected to, from the surrounding soft soil
 During elevation of the building, if the weight distribution is not
regular, it may affect the proper functioning of the house.
CONCLUSION
Amphibious construction is a low-impact hurricane mitigation
strategy that provides flood protection without increasing exposure to
strong winds. Amphibious foundations are a proven, low-cost, lowimpact flood protection strategy that can increase a flood-prone
community's resilience in the face of disaster. This low impact
technology thus provides houses with an even greater resilience to
rising flood levels than PSE, without increasing the exposure of the
structure to the more regularly occurring strong winds. The long term
view that is necessary in taking account of climate change also
enables us to view other issues with the same horizon of opportunity
facilitating new solution to spatial planning and the location of
settlements, best practice in building design, infrastructure
development and environmental flood defence. Therefore, it is time to
evolve a new relationship with water to ask what is possible of design
and construction and begin to look toward a flooded future with
confidence and imagination.
PRESENTED MODEL
ACKNOWLEDGEMENT
We hereby take this opportunity to thank all the faculties, our parents
and our friends who have ensured their complete support throughout
for the completion of my project .We would like to express my
gratitude towards our college, the director and the principal for
providing an opportunity to complete this project on time. We would
like to thank our Head Of the Department Dr. Susan Jacob and
Assistant Professor Renjith, for their valuable guidance in the
fulfilment of the project.
GROUP MEMBERS
1. Krishnendu H
2. Sandra Raju
3. Varsha V Naik