Bamboo Construction - Natuurlijk bouwen kun jij ook - Juan Carlos Gaviria Moreno & Max Verhoeven

bamboo constructionpractical experience with natural buidling

Juan Carlos Gaviria Moreno & Max Verhoeven

why bamboo building? Sustainable?

co2 sequestering reduction soil erosion temperature reduction water regulation (dry/wet seasons) fast growing time low use of nutrients low primary energy

Source: Minke, G. (2012)

why bamboo building? Safe?

earthquake proof build light relative high strengh

Source: Minke, G. (2012)

why bamboo building? economic?

low cost (if localy produced) creation of local jobs (extra) income for farmers

Source: Kant, Shashi, and Marian Chiu, 2000

bamboo architecture

traditional

bamboo architecture

Simn Vlez

The temporary Cathedral in structural bamboo (guadua) at Pereira, Colombia, 1999Expo 2000 pavilion Hanover for the ZERI. First constructed in Colombia.

bamboo architecture

24H architecture

24H-architecture, Bamboo Manta Ray, Koh Kood, Thailand

bamboo architecture

Agora Architects

Temporary dormitories for Mae Tao Clinic, Mae Sot, Thailand

bamboo architecture

Andrea Fitrianto

Andrea Fitrianto

bamboo architecture

BAMB SOCIAL

what is bamboo?

main properties plant composition types of roots fibers where is bamboo? types of bamboo mechanical properties bamboo and wood uses of bamboo

main properties

grass grows appr. 60 cm/day more than 1300 spices

Source: McClure, 1966

plant composition

three elements: nodes internodes wall

fibres only in one direction light strongest natural fibre in

the world Silica in outer layer

(silicium dioxide)Nelli Silva et al., 2006

Illustration: Sylvia Machgeels, BAMB SOCIAL (2014)

a bamboo plant reproduces by its roots in 3 classes:

1. in a bunch 2. 1-3 meters seperated (guadua) 3. runners large seperations

types of roots

fibres

1 year old 12 years old

where is bamboo?

37 million hectares


types of bamboo

More than 1300 species


Guadua Angustifolia Kunth

Most used for construction in Colombia: The king of bamboo Thick walls, strong fibers Not very conical Protected by spines New shoots 3m from mother culm Flowering in Nicaragua

mechanical properties Guadua

PHYSICAL AND MECHANICAL PROPERTIES OF GUADUA

MINIMUM VALUE

AVERAGE VALUE

MAXIMUM VALUE

Basic density outside [kg/m3] - 581 -

Density dried outside [kg/m3] - 522 -

Compression parallel to fibre [N/mm2] 20.7 43.9 83.7

Tension parallel to fibre [N/mm2] 35.2 53.5 170

Flexion [N/mm2] 4.9 37.5 110.5Modulus of elasticity longtudinal compression [N/mm2]

1080 2190 9080

Modulus of elasticity longtudinal tension [N/ 2010 3030 6540For Guadua a lot of information is available, but for th evast majority of bamboo species there is no systematic information available. We advise you to test the local bamboo specie.

safety of bamboo


bamboo and wood

vs

family: grass Wood (Oak)fibres: 1 direction 2 directionstime to grow: 3-7 years 50 100 yearsregeneration: grows itself back replant

bamboo and wood shrinking

Bamboo shrinks more then wood when it loses water. The canes can tear apart the nodes. Bamboo shrinks in the cross section ca. 10-16%. In the wall thickness ca. 15-17%. The longitudinal shrinkage is much less.

source: www.bambus\new\eng\reports\buildingmaterial\buildingmaterial.html

the mystery of flowering

Small species: every 3-4 years and they live after the flowering

Large species: every 20/30/80/120 years, all the plants in a region flower together and the culms die off after the flowering. This is called: Gregorian Flowering

uses of bamboo


Before building

is (the right) bamboo available locally? is the bamboo accessable? facilities for a method of treatment.

Before building

Selection of species Planting and harvesting (startup 7 yrs) Cutting (when and how) Treatment (natural/chemical) Dry (2-3 months) Processing (f.e. laminated bamboo)

selecting bamboo

which bamboo to choose?

cutting bamboo

cutting bamboo

wrong right

cleaning bamboo

treating bamboo

drying bamboo

Image right: 24H architecture

processing bamboo

Building with bamboo Principles design principles gathering information location fundation columns prefabricated elements assemblage details finishing

design with bamboo

like a mexican to protect the bamboo from:

rain sun termites


no hat nor boots

gathering information

design

location

foundation details

foundation

columns

prefabricated elements

assemblage

connections

details

the roof

finishing

end results

thank you

referencesBooks/Articles/Reports:Guaduabamboo (2014). The reality about building with bamboo. http://www.guaduabamboo.com/blog/the-realityabout-building-with-bamboo.Jules Janssen, designing and building with bamboo: http://www.inbar.int/publications/?did=58Gaviria Moreno, J.C., et. al. (2015), BAMB SOCIAL, un manual de construccin sostenible con bamb. Minke, G. (2012). Building with Bamboo: Design and Technology of a Sustainable Architecture. van Lengen, J (1981). Barefoot Architect. Mexico.Liese et al. (2002). Preservation of bamboo for the construction of houses for low income people. Universitt Hamburg, Duitsland.van der Lugt, P. (2003). Bamboe als alternatief bouwmateriaal in West-Europa?. Delft.Shortsighted Architecture (2013). Projectplan Shortsighted El Rama. Delft.Nienhuys, S. (2012). Thin Bamboo Culms or TrussesUse of Two and Three Culms in Composite Beams. Kant, Shashi, and Marian Chiu. "Bamboo sector reforms and the local economy of Linan County, Zhejiang Province, People's Republic of China."Forest

Policy and Economics1.3 (2000): 283-299

Websites:www.bambus-conbam.de www.abari.org www.bamboocentral.org www.inbar.int (free technical reports)www.guaduabamboo.com !www.bambus.rwth-aachen.de/eng/index.htm lwww.tibarose.com www.pindorama.org

architects

Simn Vlez24H-architectureGernot MinkeShigeru BanTYIN tegnestue ArchitectsAgora ArchitectsIbukuVo Trong Nghia Architects

Engineering

Bamboo Construction - Natuurlijk bouwen kun jij ook - Juan Carlos Gaviria Moreno & Max Verhoeven