Organic Shaped Buildings with Bamboo Bamboo as building material is not constantly use into organic shaped building. The reference shape of bamboo building mostly come from wooden building which is generally constructed using simple frame structure. Organic Building Shape: Described by Renzo Piano’s firm as an ‘organic creature‘, the slug shaped new building rises up cheekily above the traditional 19th century neoclassical facade which contains its entrance. So that it can be seen (but only .. bamboo as construction material bamboo building materials for sale bamboo for building bamboo used for construction bamboo for construction how to build using bamboo bamboo building supplies best bamboo for construction interesting civil engineering topics civil engineering topics for presentation civil seminar topics ppt civil engineering seminar topics 2018 best seminar topics for civil engineering seminar topics pdf seminar topics for mechanical engineers seminar topic for civil engineering pdf

1. Bamboo in organic
shaped buildings
1Bamboo in organic shaped buildings
PRESENTED BY,
AGLAIA

2. Introduction
• 11% of the total CO2 emissions are due to the steel industry
while the cement industry contributes about 9% to it.
• Thus steel and cement are costly as well as environmentally
dangerous.
• bamboo utilizes CO2 during its production and releases O2.
• It can emerge as a naturally sustainable and a low cost
construction material.
2Bamboo in organic shaped buildings

3. Bamboo
• Bamboos include some of the fastest-growing plants in the
world, due to a unique rhizome-dependent system.
• They can grow 910 mm within a 24-hour period, at a rate of
almost 40 mm an hour.
• It has a higher specific compressive strength than
wood,brick or concrete and a specific tensile strength that
rivals steel.
3Bamboo in organic shaped buildings

4. Advantages of Bamboo
• It is fastest-growing renewable natural building
material.
• easily available & Eco friendly.
• masonry as an independent building material.
• cost effective and easy to work.
• can be easily bend, give desired shape and can provide
joints to suit the construction.
4Bamboo in organic shaped buildings

5. • Its enormous elasticity makes it suit to earthquakes Prone
areas.
• Local available material to some areas, which tries to carry
the local tradition & vernacular Architecture of that place.
5Bamboo in organic shaped buildings
Fig:1 Bamboo
Source:http://2d0kr92f96zwxdnni
4d4ifav.wpengine.netdna-
cdn.com

6. Disadvantages of Bamboo
• It requires preserving otherwise it will loose its strength.
• It is shaped by nature.
• It needs coating as it is attacked by fungi, insects etc.
• Even with high strength its joints as always weak.
• It needs advanced guidance with detailed study and codes.
• They are not fire resistant.
Bamboo in organic shaped buildings 6

7. Treatment of Bamboo
• The aim of bamboo preservation is to eliminate the bamboo
sugar content and other carbohydrate that attract fungi and
insects.
• In large-scale building projects, chemical methods are more
suitable for bamboo preservation.
• Open tank for cold soaking, modified Boucherie, pressure
and heat treatment are the most commonly used
preservation methods against biological attack.
Bamboo in organic shaped buildings 7

8. Open Tank Method
• This method is also known as the “leaching bamboo”
method.
• It is a simple soaking method and provides good
protection for bamboo culms.
• This leaching process can reduce the starch content of
bamboo besides providing preservative to the bamboo
culms.
Bamboo in organic shaped buildings 8

9. Modified Boucherie Method
• It is an effective method for freshly harvested bamboo culms.
• The advantage of this treatment method is that the
equipment used is low-cost, can be easily built, easy to
transport and could be used directly in the forest.
• This method is one of the best in terms of penetration,
distribution and retention.
Bamboo in organic shaped buildings 9

10. Pressure Treatment
• It is carried out in some countries, both with water-borne
preservatives and with creosote.
• It is one of the best preservative methods for bamboo but is
also expensive, and may not be economical for low cost
materials like bamboo.
• It may only be applied to thick-walled bamboos because
culms with thin walls tend to crack under the applied
pressure.
Bamboo in organic shaped buildings 10

11. Heat Treatment
• The properties and durability of bamboos were also
known to be improved by heat treatment.
• This technique involves the immersion of bamboos in hot
oil bath at a temperature range of 160–220°C for two to
four hours.
• Vegetable oils with high boiling points such as palm oil,
coconut oil and hemp oil is commonly used for this
treatment process.
Bamboo in organic shaped buildings 11

12. The Property of Bamboo as Building
Construction Material
1.Tensile Strength
• It is good in tension more than the compression.
• Tensile strength is high in outlying layer of bamboo.
• The fibers of bamboo can take tension upto 400 N/mm2
which is greater than the steel.
• But connection to transfer tensile strength is not possible.
12Bamboo in organic shaped buildings

13. 2. Compressive Strength
• Slimmer tubes have high compressive strength than bigger
tubes
• Slimmer possess better material properties since bigger
tubes have minor part of the outer skin, which is very
resistant in tension.
• The portion of lignin inside the culms affects compressive
strength.
Bamboo in organic shaped buildings 13

14. 3. Fire Resistance
• High content of silicate acid shows its fire resisting ability.
• Filled up with water, it can stand a temperature of 400° C.
Bamboo in organic shaped buildings 14
Fig :2 Fire resistance of bamboo cane when filled with water.
Source:http://2.bp.blogspot.com

15. 4. Shrinkage
• The shrike rate of bamboo is more than the wood when it
losses water.
• The shrink rate is 15-17% of wall thickness.
5. Elastic modulus
• It has high elastic modulus due to the accumulation of highly
strong fibers in the outer part.
• Enormous elasticity makes its suitable to earthquake prone areas
Bamboo in organic shaped buildings 15

16. 6. Anisotropic properties
• It is an anisotropic material.
• Properties in the longitudinal direction are completely
different from those in the transversal direction.
• There are cellulose fibers in the longitudinal direction, which
is strong and stiff and in the transverse direction there is
lignin, which is soft and brittle.
Bamboo in organic shaped buildings 16

17. Construction Principles
• Bamboo less than the size of 1.5 inches should not use for
reinforcement purpose.
• The criteria of clear spacing of bamboo rods should not
less than maximum size of aggregate with adding 0.25
inches.
• It should be tight securely while placing the concrete with
regular interval of 3 to 4 feet to prevent it from floating up
in concrete.
Bamboo in organic shaped buildings 17

18. • It has similar reinforcing design to steel reinforcement.
• In columns it resists same compressive load tat taken
by concrete bamboo displaced.
• It has low modulus of elasticity; in flexural members
some cracks are developed.
• When crack can’t tolerable, steel reinforcement design
or other designs are required.
Bamboo in organic shaped buildings 18

19. Organic Shape in Architecture
• They are figures that have a natural look and a flowing, curving
appearance.
• They are curvilinear or free form shapes, as they can be made of
angles, curves or both.
• Examples are found in leaves, plants, and animals.
Bamboo in organic shaped buildings 19
Fig:3 Examples of organic shapes
Source:https://images.wisegeek.com

20. Organic Shaped Buildings with Bamboo
Bamboo in organic shaped buildings 20
Fig:4 Organic shaped buildings
Source:http://weburbanist.com

21. Fig: 5 Kontum Indochine Cafe by Vo Trong Nghia Architects
Source:https://static.dezeen.com
Bamboo in organic shaped buildings 21

22. Fig:6 Organic shaped brige with bamboo
Source:https://i.pinimg.com
Bamboo in organic shaped buildings 22

23. Fig:7 Bamboe Koening Restaurant
Source:https://media-cdn.tripadvisor.com
Bamboo in organic shaped buildings 23

24. Construction Techniques of Bamboo for
Organic Shaped Buildings
• Organic shape buildings use arch, spline or other curvature
shape.
• 2 methods are used to curve bamboo’s.
• They are hot bending method and cold bending method.
• We can use natural curve bamboo for this.
• Bamboo can grow in curve shape; depend on the species, soil
condition and environment.
• They can be joined in a row to create a continuous curve shape.
• This method can be applied to create arches or spline roof ridge.
Bamboo in organic shaped buildings 24

25. Hot bending method
• They can be done in 2 ways.
• By immersing bamboo in the
lukewarm water until the fibers
are become soft enough to be
curves using clamp
• By heating bamboo to the
desire heat (>150o) that cause
bamboo fibers become soft and
easy to bend.
Cold bending method
• Cold bending method can be
done by splitting bamboo into
planks then tie it into become a
bundle; or by slashing bamboo
rods the curved it.
Bamboo in organic shaped buildings 25

26. Conclusion
• It have excellent engineering qualities for construction purpose
• It is economical for reinforcement use since It is easily available
than steel
• Many countries of the world are rich in bamboo production
which is a good point for the reinforcement use having good
engineering quality.
• In urban areas and poor areas it is very useful for construction
purpose and also economical.
Bamboo in organic shaped buildings 26

27. • Bamboo is weak at node section failure can occur.
• According to research in next few years production of steel
will reduce hence the utilization of natural and eco-
friendly materials should be used.
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28. References
1. Esti Asih Nurdia(2016)’’The Potential of Bamboo as Building Material
in Organic Shaped Buildings’’ Department of Architecture, Petra
Christian University, .Siwalankerto 121-131, Surabaya, 60236,
Indonesia.
2. P. Sharma, K. Dhanwantri and S. Mehta(2014), “Bamboo as a
Building Material” Amity School of Architecture and Planning
Haryana.
3. Latha M S (2017) ‘’Bamboo - A building material for construction’’10th
International Conference on Agriculture & horticulture London,UK
Bamboo in organic shaped buildings 28

29. 4. Rajshekhar Rao(2014) ‘’Bamboo Architecture for ecological living
’Institute of Technology, Bangalore, India.
5. Akshay Modi,Dr. Mayank Desai,Naman Parikh Bamboo(2016)
‘’A Sustainable and Low-Cost Housing Material for India’’ Sardar
Vallabhbhai National institute of Technology Surat, India.
6. Shiva Trivedi, Akshay Nigam (2013)‘’Use of Bamboo as Building
Material’’ National Journal of Science and Research (IJSR)
7. Suchampa Bagchi, R Rashmi Mano, N Thangam(2018) ‘’Bamboo
as a Building Material ‘’ International Journal of Latest
Engineering Research and Applications (IJLERA)Volume – 03,
Issue – 07,PP – 17-19
Bamboo in organic shaped buildings 29

30. Thank you
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