BAMBÚ SOCIAL
El Rama, Nicaragua
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Bamboo model house built with local students and craftsmen

image: Shortsighted Architecture | CC-BY-SA_black.png some rights reserved
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Category:
housing
Phase:
under construction
Design:
Shortsighted Architecture
Updated:
30 July 2015
introduction

The team of BAMBÚ SOCIAL has designed a pilot for sustainable social housing in El Rama, Nicaragua, developing a building method by the use of the widely available resource bamboo. This building method can be practiced in a completely local manner: from the production and treatment of bamboo to the execution of bamboo pre-fab elements that can be used in local construction. A model house has been constructed with an integrated decentralised, low-tech and natural water purification and storage system in order to provide clean drinking water for the inhabitants of the house. The model house acts as a library for the students and professors of the local university, the BICU (Bluefields Indian and Caribbean University).

Bamboo model house

image: Bambú Social | CC-BY-SA_black.png some rights reserved
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Students get diploma

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cultural and social context

Nicaragua is mainly an agrarian society, in which the harvesting of crops such as coffee and tobacco is the main drive of the economy. It is known to be the poorest country in Central America, as almost half of the people live below the national line of poverty. Studies have made evident that Nicaragua has the poorest quality of housing in the whole of Latin America, with a housing shortage of 12% (IDB, 2012). The high costs for building, the use of poor construction materials, and the lack of infrastructural access all contribute to the housing problems. Furthermore, in many rural areas like El Rama, there are serious issues in the supply and quality of clean drinking water.

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Placing biosand filters in El Recreo

image: Shortsighted Architecture | CC-BY-SA_black.png some rights reserved
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Construction briefing

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materials and building techniques

Two different species of bamboo are used for the model house: Dendrocalamus Asper and Bambusa Gigantochloa. These two species are used for different functions in the construction, as they have different characteristics. They also require their own processes for cutting, treatment and preparation.

The Dendrocalamus Asper is known as the giant bamboo, and its weight and size make it difficult to work with it yet perfect for building a strong construction. The bottom part of this specie is used for the structural columns of the house, and upper and thinner parts of the bamboo are used for divisions and walls by making them into strips and ‘esterillas’ (crushed bamboo mats). The Bambusa Gigantochloa is thinner, making it much easier to work with. This specie is used for beams, rafters and bracing.

Cutting bamboo (Dendrocalamus Asper)

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Cutting bamboo (gigantochcloa)

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Treating bamboo culms with borax via a submersion proces

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Removing bamboo from the borax the treatment bath

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Making 'espiches de bambú'

image: Bambú Social | CC-BY-SA_black.png some rights reserved
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making prefab connected beam

image: Bambú Social | CC-BY-SA_black.png some rights reserved
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Wood parts connecting the bamboo to the foundation

image: Shortsighted Architecture | CC-BY-SA_black.png some rights reserved
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Preparing the biosand filters

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Students working on the garden

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Bamboo model house - plan

image: Bambú Social | CC-BY-SA_black.png some rights reserved
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Bamboo model house

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Grey water treatment by banana plants

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earth and climate

Nicaragua is a country of great biodiversity, and is known as the “Land of Lakes and Volcanoes”. As it lies close to two fault lines, earthquakes and volcanic eruptions are frequent. Earthquakes have often wreaked havoc across the country, causing poorly built houses to collapse. In order for a building to hold its own in the face of an earthquake, it has to be made of materials that are flexible yet sturdy. Bamboo contains both qualities and is therefore resistant to the tremors.

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The suburbs of El Rama

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image gallery
Creating the name at the workshop

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Top view of construction site

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Discussing the floor foundation

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First column going up

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Connecting beams with bamboo pegs

image: Shortsighted Architecture | CC-BY-SA_black.png some rights reserved
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Wood parts connecting the bamboo to the foundation

image: Shortsighted Architecture | CC-BY-SA_black.png some rights reserved
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Water tank bamboo frame

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Reflection meeting with the students

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technical drawings
Section width (work in progress)

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Section length (work in progress)

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Ground floor plan (work in progress)

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First floor plan (work in progress)

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Location
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Explore more inspirations
Keyword:
bamboo (57)
community practice (101)
student participation (43)
local resources (88)
low income (24)
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