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BAMBOO
Bamboo is one of the most sustainable building materials on
the planet and is termed as vegetable steel with a tensile
strength of 28000 per square inch and provide earthquake
resistant structures.
Introduction
Facts about bamboo
• Bamboo contains high levels of starch which attracts insects.
without proper treatment, bamboo has a natural durability of
less than 2 years.
• Species like genus “dendrocalamus” and “bambusa” have the
best properties for structural applications.
• One of the fastest growing plants on earth.its growth rate
ranges from 30cm to 1m in 24 hours.
• 1450 species are found in diverse climates across the world.
The various advantages of bamboo are mentioned below:
1. Light, strong and versatile
2. Environment friendly
3. Accessible to the poor
4. Self renewing resource
5. Fast growing
6. Highly productive
7. Earthquake resistance
Advantages of Bamboo
• SOAKING: A method commonly used in India is to soak bamboo
for ninety days in water. Then set to dry in a sunny area for two
weeks.
• AIR DRYING: Cut the bamboo leaving the branches and leafs
still attached. Store the bamboo upright in the sun for two weeks.
Then continue drying in a cool dry place out of direct sunlight,
cross your fingers and hope for the best. Depending on the area,
watch for molding.
• ABURANUKI: The Japanese method of drying used by the
Shaku hachi or flute makers of Japan.
How to protect bamboo
Use
• Building and construction.
• Small scale and cottage
industries, for handicrafts and
other products.
• New generation products as
wood substitutes
• Industrial products
• Transportation industry- truck
bodies, railway carriages etc.
• Boards and furniture
bamboo Uses
Percent Consumption
Paper Pulp
35.0
Housing
20.0
Non-Residential
5.0
Rural uses
20.0
Fuel
8.5
Packing, including baskets
5.0
Transport
1.5
Furniture
1.0
Other wood industries
1.0
Others, including ladders etc.
3.0
Bamboo, like true wood, is a natural composite material with a high strengthto-weight ratio useful for structures
Various structural shapes may
be made by training the
bamboo to assume them as it
grows. Squared sections of
bamboo are created by
compressing the growing stalk
within a square form. Arches
may similarly be created by
forcing the bamboo's growth
into the desired form, costing
much less than it would to
obtain the same shape with
regular wood timber.
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Major Uses of Bamboo in
Construction
Scaffolding
Reinforcement
Roofing
Walling
Doors & Window
• It is a combination of traditionalism and modernity, a
bamboo construction is in roofed garden and high level
thermal insulated systems.
• The solar array here is able to generate nine kilowatts
electricity for a bedroom and a living room blueprint.
• Traditional Chinese architecture technology inclusive of
humidity and temperature control system.
Bamboo House
Roofing
The roof offers protection against extremes of
weather including rain, sun and wind,
and to provide shelter, clear and usable space
beneath the canopy. Above all it must be
strong enough to resist the considerable forces
generated by wind and roof coverings.
Scaffolding
Because of the favorable relationship between load-bearing
capacity and weight, bamboo can be used for the construction
of save scaffoldings even for very tall buildings. Only lashed
joints are used. The cane extension is carried out by lashing the
cane ends together with several ties.
Walling
Bamboo can be cut and laminated
into sheets and planks. This process
involves cutting stalks into thin
strips, planing them flat, and boiling
and drying the strips; they are then
glued, pressed and finished
Reinforcement
Five story parking garage at the
Leipzig Zoo using bamboo for the
building’s envelope
• Renewable – can be harvested without damaging the plant
and grows extremely quickly
• Plentiful – there is great potential for timber-quality bamboo
to be produced in the U.S.
• Local – can be grown locally in a small land area
• Waste-reducing – sequesters carbon and leaves can be used
as fodder or compost
Potential for Sustainability
Bamboo Growing
Area (Sq.Km.)
Bamboo Stock
(Million tons)
Mizoram
9210
10.89
Assam
8213
13.41
Arunachal Pradesh
4590
9.84
Manipur
3692
11.47
Meghalaya
3102
4.41
Tripura
939
0.86
Nagaland
758
3.66
30504
54.53
State
Total
Status of Bamboo Resources in
North-Eastern Region
Species of Bamboo
Bamboo is a group of of woody pernennial grasses in the grass family poaceae, which is
large family with over 10000 species. Bamboo species can be divided into clumpers and
runners.
The seven species of bamboos.
Most Suited Species
Bamusa bamboos
Dendrocalamus
strength
Bright shiny, green
when fresh, yellow
with age
Pale blue green when
fresh dull green to
yellow with age
Height
15-30m
8-16m
Diameter
Upto 150mm
25-80 mm
Internodes
200-400mm
300-400 mm
Thickness
Thick-walled
Thick walled often
solid
1. Bambusa Balcooa
2. Bambusa Bambos
3. Bambusa Nutans
4. Bambusa Tulda
5. Dendrocalamus Giganteus
6. Dendrocalamus Strictus
7. Melocanna Bambusoides
Other species: Bamboo Below; Bamboo;
Dendrocalamus as per;Dendrocalamus transitions
Bamboo sizes are generally specified by minimum
diameter, wall thickness and length. For the type of
conservation covered by this manual, columns and roof
members should be 80-100mm in diameter with wall
thickness of 10-12mm.
For purlins, round-solid or near culms 25-35 mm in
diameter should be used.
Sizes
Sorting out bamboo on the basis of characteristics
importance for structural utilization.
• Diameter and length of culms
• Taper of culms
• Straightness of culms
• Inter-nodal length
• Wall thickness
• Density and strength
• Durability and seasoning.
Grading of structural bamboo
 The properties as top grade building material and increased
availability of bamboo in our country makes it possible to use,
bamboo in the field of construction extensively.
 Its high valued utilization not only promotes the economic
development, but also saves forest resources to protect our ecological
environment as a wood substitute.
 As an economic building material, bamboo’s rate of productivity and
cycle of annual harvest outstrips any other naturally growing resource.
Conclusion
ABHISHEK SAINI
Made This.
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