Corrugated bamboo roofing sheets are an environmentally friendly alternative to metal or plastic roofing sheets. They are made by weaving bamboo strips into mats, soaking the mats in adhesive resin, and pressing them together under heat and pressure to form sturdy, water-resistant sheets. Research showed that bamboo sheets provide better thermal insulation than zinc, plastic, or asbestos sheets. Bamboo also has higher bending and impact strength, making it a durable roofing material. Several government-funded projects in India have promoted the use of corrugated bamboo sheets for construction.
Bamboo is one of the oldest construction materials. It has been used all over the world as the building materials in the form of walls, roofs, foundation, reinforcements and decorations.
At the same time, it acts as the good earthquake resistance material.
Bamboo (Bambuseae) is a tribe of flowering perennial evergreen plants in the grass family Poaceae, subfamily Bambusoideae, tribe Bambuseae; although, the forestry services and departments of many countries where bamboo is utilized as a building material consider bamboo to be a forestry product, and it is specifically harvested as a tree exclusively for the wood it produces, which in many ways is a wood superior in strength and resilience to other natural, fibrous building materials.In fact it is often referred to as a tree by cultures who harvest it as wood. Giant bamboos are the largest members of the grass family. In bamboos, the internodal regions of the stem are hollow and the vascular bundles in the cross section are scattered throughout the stem instead of in a cylindrical arrangement. The dicotyledonous woody xylem is also absent. The absence of secondary growth wood causes the stems of monocots, even of palms and large bamboos, to be columnar rather than tapering.Bamboos are some of the fastest-growing plants in the world,due to a unique rhizome-dependent system. Certain species of bamboo can grow 35 inches within a 24-hour period, at a rate of 3 cm/h (a growth of approximately 1 millimeter (or 0.02 inches) every 2 minutes). Bamboos are of notable economic and cultural significance in South Asia, Southeast Asia and East Asia, being used for building materials, as a food source, and as a versatile raw product. Bamboo has a higher compressive strength than wood, brick or concrete and a tensile strength that rivals steel.
The word bamboo comes from the Kannada term bambu, which was introduced to English through Malay.
Construction
Further information: Bamboo construction
Bamboo, like true wood, is a natural composite material with a high strength-to-weight ratio useful for structures.
In its natural form, bamboo as a construction material is traditionally associated with the cultures of South Asia, East Asia and the South Pacific, to some extent in Central and South America, and by extension in the aesthetic of Tiki culture. In China and India, bamboo was used to hold up simple suspension bridges, either by making cables of split bamboo or twisting whole culms of sufficiently pliable bamboo together. One such bridge in the area of Qian-Xian is referenced in writings dating back to 960 AD and may have stood since as far back as the third century BC, due largely to continuous maintenance.
Bamboo has also long been used as scaffolding; the practice has been banned in China for buildings over six stories, but is still in continuous use for skyscrapers in Hong Kong.In the Philippines, the nipa hut is a fairly typical example of the most basic sort of housing where bamboo is used; the walls are split and woven bamboo, and bamboo slats and poles may be used as its support.
Bamboo is one of the oldest construction materials. It has been used all over the world as the building materials in the form of walls, roofs, foundation, reinforcements and decorations.
At the same time, it acts as the good earthquake resistance material.
Bamboo (Bambuseae) is a tribe of flowering perennial evergreen plants in the grass family Poaceae, subfamily Bambusoideae, tribe Bambuseae; although, the forestry services and departments of many countries where bamboo is utilized as a building material consider bamboo to be a forestry product, and it is specifically harvested as a tree exclusively for the wood it produces, which in many ways is a wood superior in strength and resilience to other natural, fibrous building materials.In fact it is often referred to as a tree by cultures who harvest it as wood. Giant bamboos are the largest members of the grass family. In bamboos, the internodal regions of the stem are hollow and the vascular bundles in the cross section are scattered throughout the stem instead of in a cylindrical arrangement. The dicotyledonous woody xylem is also absent. The absence of secondary growth wood causes the stems of monocots, even of palms and large bamboos, to be columnar rather than tapering.Bamboos are some of the fastest-growing plants in the world,due to a unique rhizome-dependent system. Certain species of bamboo can grow 35 inches within a 24-hour period, at a rate of 3 cm/h (a growth of approximately 1 millimeter (or 0.02 inches) every 2 minutes). Bamboos are of notable economic and cultural significance in South Asia, Southeast Asia and East Asia, being used for building materials, as a food source, and as a versatile raw product. Bamboo has a higher compressive strength than wood, brick or concrete and a tensile strength that rivals steel.
The word bamboo comes from the Kannada term bambu, which was introduced to English through Malay.
Construction
Further information: Bamboo construction
Bamboo, like true wood, is a natural composite material with a high strength-to-weight ratio useful for structures.
In its natural form, bamboo as a construction material is traditionally associated with the cultures of South Asia, East Asia and the South Pacific, to some extent in Central and South America, and by extension in the aesthetic of Tiki culture. In China and India, bamboo was used to hold up simple suspension bridges, either by making cables of split bamboo or twisting whole culms of sufficiently pliable bamboo together. One such bridge in the area of Qian-Xian is referenced in writings dating back to 960 AD and may have stood since as far back as the third century BC, due largely to continuous maintenance.
Bamboo has also long been used as scaffolding; the practice has been banned in China for buildings over six stories, but is still in continuous use for skyscrapers in Hong Kong.In the Philippines, the nipa hut is a fairly typical example of the most basic sort of housing where bamboo is used; the walls are split and woven bamboo, and bamboo slats and poles may be used as its support.
structural glazing and curtain wall
MATERIAL USED
parts of structural glazing and curtain wall
history of glazing
glass description
case study according material
In its natural form, bamboo as a construction material is traditionally associated with the cultures of South Asia, East Asia and the South Pacific, to some extent in Central and South America, and by extension in the aesthetic of Tiki culture. In China and India, bamboo was used to hold up simple suspension bridges, either by making cables of split bamboo or twisting whole culms of sufficiently pliable bamboo together. One such bridge in the area of Qian-Xian is referenced in writings dating back to 960 AD and may have stood since as far back as the third century BC, due largely to continuous maintenance.
Bamboo has also long been used as scaffolding; the practice has been banned in China for buildings over six stories, but is still in continuous use for skyscrapers in Hong Kong.[6] In the Philippines, the nipa hut is a fairly typical example of the most basic sort of housing where bamboo is used; the walls are split and woven bamboo, and bamboo slats and poles may be used as its support. In Japanese architecture, bamboo is used primarily as a supplemental and/or decorative element in buildings such as fencing, fountains, grates and gutters, largely due to the ready abundance of quality timber.
introduction . DESIGN OF A CURTAIN WALL . components of a curtain wall . Framing concepts . Materials . Types of curtain walls. Structural problems of curtain walls.
Seismic retrofitting of heritage building- case studyashlinvilson
The Mani Mandir complex (100m×100m in plan) is an important historic monument of the town of Morbi
in the western state of Gujarat, which suffered significant damage during the M7.7 Bhuj earthquake of
2001 in India. As part of the earthquake reconstruction program, the Government of Gujarat decided to
seismically retrofit this complex. The project was divided into two phases of design and execution; this
paper discusses the evaluation and design procedures recommended for exeuction. A detailed condition
survey was carried out and measured drawings were prepared. A comprehensive retrofit program was
formulated. Conservation principles, minimum intervention and consonance with the heritage character of
the building were important considerations in selecting the retrofit program. The complex was modeled
using finite elements and behaviour was studied of the existing structure as well as retrofit structure. The
retrofit measures recommended included discriminate use of internal reinforced concrete skin walls,
providing a rigid diaphragm behaviour mechanism in existing slabs, introducing stainless steel
reinforcement bands in the existing masonry walls, cross-pinning and end-pinning in walls and pillars,
and strengthening of arches and elevation features.
structural glazing and curtain wall
MATERIAL USED
parts of structural glazing and curtain wall
history of glazing
glass description
case study according material
In its natural form, bamboo as a construction material is traditionally associated with the cultures of South Asia, East Asia and the South Pacific, to some extent in Central and South America, and by extension in the aesthetic of Tiki culture. In China and India, bamboo was used to hold up simple suspension bridges, either by making cables of split bamboo or twisting whole culms of sufficiently pliable bamboo together. One such bridge in the area of Qian-Xian is referenced in writings dating back to 960 AD and may have stood since as far back as the third century BC, due largely to continuous maintenance.
Bamboo has also long been used as scaffolding; the practice has been banned in China for buildings over six stories, but is still in continuous use for skyscrapers in Hong Kong.[6] In the Philippines, the nipa hut is a fairly typical example of the most basic sort of housing where bamboo is used; the walls are split and woven bamboo, and bamboo slats and poles may be used as its support. In Japanese architecture, bamboo is used primarily as a supplemental and/or decorative element in buildings such as fencing, fountains, grates and gutters, largely due to the ready abundance of quality timber.
introduction . DESIGN OF A CURTAIN WALL . components of a curtain wall . Framing concepts . Materials . Types of curtain walls. Structural problems of curtain walls.
Seismic retrofitting of heritage building- case studyashlinvilson
The Mani Mandir complex (100m×100m in plan) is an important historic monument of the town of Morbi
in the western state of Gujarat, which suffered significant damage during the M7.7 Bhuj earthquake of
2001 in India. As part of the earthquake reconstruction program, the Government of Gujarat decided to
seismically retrofit this complex. The project was divided into two phases of design and execution; this
paper discusses the evaluation and design procedures recommended for exeuction. A detailed condition
survey was carried out and measured drawings were prepared. A comprehensive retrofit program was
formulated. Conservation principles, minimum intervention and consonance with the heritage character of
the building were important considerations in selecting the retrofit program. The complex was modeled
using finite elements and behaviour was studied of the existing structure as well as retrofit structure. The
retrofit measures recommended included discriminate use of internal reinforced concrete skin walls,
providing a rigid diaphragm behaviour mechanism in existing slabs, introducing stainless steel
reinforcement bands in the existing masonry walls, cross-pinning and end-pinning in walls and pillars,
and strengthening of arches and elevation features.
Bamboo Construction - Natuurlijk bouwen kun jij ook - Juan Carlos Gaviria Mo...Max Verhoeven
A presentation on bamboo construction along the lines of a building with bamboo in a low-tech manner. This presentation includes some theoretical information on construction, some example projects, and guides you step by step through the process of selecting, cutting, treating, designing and building with bamboo.
More information on the project from the presentation: www.bambusocial.com
These are the slides from a talk that I gave at Durham University in 2013. Tatami coverings (also known as tatami tilings) are a restricted exact covering by monomino 1x1 tiles and domino 2x2 tiles of grid-regions.
The restriction is that no four tiles can meet.
I discovered and studied the resulting structure during my PhD.
The present presentation deals with cost-wise comparison of steel reinforcement with bamboo reinforcement. The utilization of bamboo reinforcement as replacement of steel reinforcement is gaining immense importance today, mainly on account of the improvement in the economical aspect combined with ecological benefits.
Recently, in the attention in response to global warming issues and sustainable society, the manufacturing using natural materials has become actively. Bamboo, low cost, fast growing, and broad distribution of growth, is expected to contribute significantly to earthquake-resistant construction and seismic retrofit technology in the developing countries
Replacement of Steel by Bamboo ReinforcementIOSR Journals
The present paper deals with cost-wise comparison of steel reinforcement with bamboo
reinforcement. The utilization of bamboo reinforcement as replacement of steel reinforcement is gaining
immense importance today, mainly on account of the improvement in the economical aspect combined with
ecological benefits.
To study the effect of replacement of steel reinforcement by bamboo reinforcement, designs have been
conducted on one way slab of size 3000 x 7000 sq-mm with providing beam of 7000 mm length and 250 x 250
sq-mm. In this paper the designs are done on the basis of shearing and bending. Based on this study of cost vs
strength provided results have been discussed in the paper
Use of Fiber is one of the vital and emerging trends in Construction Technology. Fiber can be considered as an alternative in the use of an air entraining agent providing sufficient freeze thaw protection and moreover as a reinforcing material. Fiber reinforced materials are composite materials that typically consist of strong fibers embedded in resin matrix. It is a composite obtained by adding a single type or a blend of fibers to the conventional concrete mix. The fibers provide strength and stiffness to the composite and generally carry most of the applied loads. The matrix acts to bond and protect the fibers and to provide for transfer of stress from fiber to fiber through shear stresses. Fibers can be in form of steel fibers, glass fibers, natural fibers, synthetic fibers, etc. The mechanism by which fibres produce resistance to freezing and thawing is that fibres introduction reduces water absorption of the concrete increasing penetration resistance to de-icing salts. Reduced water absorption is a function of the fibres to reduce plastic shrinkage cracking, reducing the ability of water to permeate into the bleed in a concrete. So this research paper describes experimental studies on the use of coconut fibre as enhancement of concrete.
Advance Techniques in Construction
3D Printing, photo catalytic admixture, self-healing concrete, zero cement concrete, hemp lime, wood-glass epoxy composites, bamboo.
Composite Materials: A composite material can be defined as a combination of two or more materials that results in better properties than those of the individual components used alone. The two constituents of a composite are a reinforcement and a matrix.
Matrix: The continuous phase is the matrix, made of polymer, metal, or ceramic.
Reinforcement: A strong, inert, woven and nonwoven fibrous material incorporated into the matrix to improve its mechanical and physical properties. For example, fibers, whiskers, particulate etc.
Expert Accessory Dwelling Unit (ADU) Drafting ServicesResDraft
Whether you’re looking to create a guest house, a rental unit, or a private retreat, our experienced team will design a space that complements your existing home and maximizes your investment. We provide personalized, comprehensive expert accessory dwelling unit (ADU)drafting solutions tailored to your needs, ensuring a seamless process from concept to completion.
Dive into the innovative world of smart garages with our insightful presentation, "Exploring the Future of Smart Garages." This comprehensive guide covers the latest advancements in garage technology, including automated systems, smart security features, energy efficiency solutions, and seamless integration with smart home ecosystems. Learn how these technologies are transforming traditional garages into high-tech, efficient spaces that enhance convenience, safety, and sustainability.
Ideal for homeowners, tech enthusiasts, and industry professionals, this presentation provides valuable insights into the trends, benefits, and future developments in smart garage technology. Stay ahead of the curve with our expert analysis and practical tips on implementing smart garage solutions.
Transforming Brand Perception and Boosting Profitabilityaaryangarg12
In today's digital era, the dynamics of brand perception, consumer behavior, and profitability have been profoundly reshaped by the synergy of branding, social media, and website design. This research paper investigates the transformative power of these elements in influencing how individuals perceive brands and products and how this transformation can be harnessed to drive sales and profitability for businesses.
Through an exploration of brand psychology and consumer behavior, this study sheds light on the intricate ways in which effective branding strategies, strategic social media engagement, and user-centric website design contribute to altering consumers' perceptions. We delve into the principles that underlie successful brand transformations, examining how visual identity, messaging, and storytelling can captivate and resonate with target audiences.
Methodologically, this research employs a comprehensive approach, combining qualitative and quantitative analyses. Real-world case studies illustrate the impact of branding, social media campaigns, and website redesigns on consumer perception, sales figures, and profitability. We assess the various metrics, including brand awareness, customer engagement, conversion rates, and revenue growth, to measure the effectiveness of these strategies.
The results underscore the pivotal role of cohesive branding, social media influence, and website usability in shaping positive brand perceptions, influencing consumer decisions, and ultimately bolstering sales and profitability. This paper provides actionable insights and strategic recommendations for businesses seeking to leverage branding, social media, and website design as potent tools to enhance their market position and financial success.
Unleash Your Inner Demon with the "Let's Summon Demons" T-Shirt. Calling all fans of dark humor and edgy fashion! The "Let's Summon Demons" t-shirt is a unique way to express yourself and turn heads.
https://dribbble.com/shots/24253051-Let-s-Summon-Demons-Shirt
White wonder, Work developed by Eva TschoppMansi Shah
White Wonder by Eva Tschopp
A tale about our culture around the use of fertilizers and pesticides visiting small farms around Ahmedabad in Matar and Shilaj.
Can AI do good? at 'offtheCanvas' India HCI preludeAlan Dix
Invited talk at 'offtheCanvas' IndiaHCI prelude, 29th June 2024.
https://www.alandix.com/academic/talks/offtheCanvas-IndiaHCI2024/
The world is being changed fundamentally by AI and we are constantly faced with newspaper headlines about its harmful effects. However, there is also the potential to both ameliorate theses harms and use the new abilities of AI to transform society for the good. Can you make the difference?
Book Formatting: Quality Control Checks for DesignersConfidence Ago
This presentation was made to help designers who work in publishing houses or format books for printing ensure quality.
Quality control is vital to every industry. This is why every department in a company need create a method they use in ensuring quality. This, perhaps, will not only improve the quality of products and bring errors to the barest minimum, but take it to a near perfect finish.
It is beyond a moot point that a good book will somewhat be judged by its cover, but the content of the book remains king. No matter how beautiful the cover, if the quality of writing or presentation is off, that will be a reason for readers not to come back to the book or recommend it.
So, this presentation points designers to some important things that may be missed by an editor that they could eventually discover and call the attention of the editor.
2. What are Corrugated Bamboo
Roofing Sheets?
Corrugated bamboo roofing sheets (CBRS)
are an excellent alternative to corrugated
metal, plastic or asbestos roofing sheets.
They are produced from a natural and
sustainable resource and can be used to
cover homes, storage facilities, animal
pens and many other temporary or
permanent structures.
3. How are Corrugated Bamboo
Roofing Sheets Made?
• CBRS is made from several layers of
woven bamboo mats. These woven mats
are impregnated with an adhesive resin
and pressed together between two
specially designed corrugated pressing
plates. The sheets can be produced in a
range of sizes to suit particular
requirements and can easily be trimmed
for special applications.
4. • The main materials used are bamboo slivers
to produce the mats, and adhesive resin in
which to soak the mats. A resin applicator is
needed, and a drying chamber is optional.
Corrugated pressing plates for the hot press
are of course essential.
The process of producing CBRS involves 6 steps:
• Bamboos are split into thin slivers.
• Slivers are woven into mats.
• Mats are soaked in adhesive resin.
• Mats are allowed to drain and dry.
• Mats are glued together under high
temperature and pressure.
• Sheets are trimmed to shape.
5. PRECAUTION
• An important precaution to be taken in
making mats for BMCS production is that
slivers with the glossy (epidermal) layer
should be avoided as they are resistant to
bonding. Such slivers can however be
used in basketry etc.
• The moisture content (m.c) of freshly
woven mats is in the range of 40% -50%.
On drying them in sun, the m.c is
generally about 12% - 15%. If transport
and or storage is more than one month it
is advisable to undertake prophylactic
treatment. The simplest and significantly
effective treatment for mats, provided
they are not exposed to drying, is
spraying with 1% solution of mixture of
boric acid and borax in the ratio of 1:1.
Spraying can be done by hand or
knapsack sprayer. This will not have any
adverse effect on bonding. The mats
should be dried after prophylactic
6. Joinery details
BMCS are anchored to
bamboo purlins
Using J bolts
Detail showing how
BMCS are joined to
bamboo purlins using J
bolts at the crest
BMCS should be bolted at
crest not trough. Detail showing overlap of
BMCS .
7. Accessories can be used to resolve corners
and joints problems.
Complete house with BMCS roofing
8. Main advantages of CBRS
• Bamboo roofing sheets are
environmentally friendly and a safe
alternative to plastic, zinc or corrugated
asbestos roofing panels.
• They have the same standard
measurements as conventional
corrugated roofing sheets.
• Bamboo roofs are quieter in the rain and
cooler in the sun than conventional metal
or plastic sheets. A study has shown that
cows in sheds roofed with bamboo yield
more milk than those under corrugated
zinc sheets because of the cooler
environment.
• Bamboo sheets are durable and strong
with excellent internal bond strengths and
a high resistance to weathering, fire or
insect attacks.
• They have an attractive and natural
appearance and are easy to work with
9. Comparing CBRS Materials
How do bamboo corrugated roofing sheets
compare to zinc, plastic or asbestos roofing
sheets? The following study compares the
mechanical properties and performance
differences between the four different
materials.
10. 1. Thermal Transmission Performance
MATERIAL THERMAL
RESISTANCE(m²K/W)
Coefficient of
thermal
transmission
W/(m²K)
Bamboo 0.030 5.2
Zinc 0.012 6.2
Plastic 0.007 6.4
Asbestos 0.019 5.9
Bamboo has the highest thermal
resistance and the lowest thermal
transmission coefficient, therefore,
bamboo has the best thermal
isolation properties compared to the
other three materials.
11. 2. Density and Water Absorption Properties
Material Density (g/cm³) Water absorption
ratio (%)
Bamboo 0.71 36.7
Plastic 1.56 1.7
Asbestos 1.60 21.1
Bamboo has the lowest density and the
highest water absorption ratio compared
to plastic and asbestos which may
influence its durability in exterior use.
However, this characteristic is easy to
overcome when using better resins in
the production process or by applying
a coated outer layer.
12. 3. Bending Strength
Because zinc and plastic sheets are too thin
to determine its strength properties, the
determination was done with bamboo and
asbestos sheets only.
Material Flexural
strength(MPa)
Bamboo 39.72
Asbestos 31.91
The results have shown that bamboo has a
higher bending strength than corrugated
asbestos board, and would be greatly
superior to plastic sheets. This means that
corrugated bamboo roofing sheets can
endure larger long-time loads in
employment.
13. 4. Impact strength
Material Impact strength(MPa)
Bamboo 9.93
Asbestos 2.55
Corrugated bamboo roofing sheets
have an excellent impact strength.
They bare a much higher instant
striking force compared to asbestos
sheets.
14. Building Materials & Technology
Promotion Council (BMTPC)
• Under a project funded by BMTPC a
technology for manufacturing BMCS
has been developed at IPIRTI(indian
plywood industries research and
training institute) where pilot
scale/experimental BMCS production
facility has also been established and
commercial scale of production has
been established at M/s. Timpack Pvt.
Ltd., Byrnihat, Meghalaya.
• More than 2000 BMCS made at the pilot
15. Some of them are;-
• a rain shelter at the National Zoo, New
Delhi;
• specially designed terrace café at the
DFID India office, New Delhi;
• pantry near Glass House at Karnataka
Raj Bhawan, Bangalore; (Ar.neelam
Manjunatth)
• Bamboo houses constructed at
Bangalore under DFID funded project
“Bamboo Shelter Demonstration of
Best Construction Practices”
implemented by IPIRTI in
collaboration with TRADA Technology
of UK.
.