built form impacts

8/10/2019 built form impacts

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A SOLUTION FOR

SUSTAINABLE BUILT FORMS

shahanaz jaleel | m3 | m.arch


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CURRENT APPROACHES IN DESIGN


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Conventional Single issue responsecompliance focused.Human-oriented only design (Kellert, 2004).Resource-intensive.

Limited, but increasing, focus on energy efficiency and individualbuilding performance.Use of building rating tools to measureperformance, such as Green Star.

Eco-efficiency Single issue response.individual building performance.Red. negative environment impact.

Red. of activity footprint.Red. of energy intensity of goods & services.Enhanced material recyclability.Maximised use of sustainable resources (Birkeland, 2002)

Cradle-to-cradle Focused on positive environmental outcomes.Focused on the process rather than specifically looking at buildings,humans or ecosystems.

Waste is seen as potential resource.Emphasis on living systems and the creation of producing and cyclingsystems (McDonough, 2005).Products should either have no waste or be 100% recyclable.

Restorative design Focused on positive environmental outcomes.Understands buildings as existing within a wider environmental context

The built environment as a system comparing the different concepts


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Regenerative design Focused on positive environmental outcomes.Employs a flexible approach to building (Natural Logic Inc, 2003).Uses advanced building techniques that emphasise the simplestsolutions (Natural Logic Inc, 2003).Buildings are considered as elements of the landscape, rather thanas individual objects.Buildings are responsive to the local environment (Lyle, 1993).May incorporate strategies for positive psychological outcomes,such as: the use of vernacular design (to add to a sense of place and to provide climatically appropriate design); and the use of

biophilic design (the use of forms from nature) (Kellert, 2004).

Integrated approach

Coordination of planning and management activities associated with land use and land resources(including buildings, transport, urban design and infrastructure) to achieve additional value.

May result in regenerative, restorative, eco-efficient or conventional outcomes.

United Nations Division for Sustainable Development (2004)


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ENVIRONMENTAL ECNOMIC SOCIAL AND CULTURAL BENEFITS


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Building configuration?

Technology?

Material?

Passive design solution?

Unsustainable buildings not only affect the buildings

themselves but the built environment alsoISSUE


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Unsustainable built forms and environmental damage mainly due to use of unsustainable materials

The environmental effects range from

the stage of raw material procurement Material processing industries Built environmental impacts during the operational phase of the building: Solar gain and induced air conditioning uncomfortable environment in the surrounding public realm due the glare.

The construction waste after the shell life/ use of the building

quarrying Construction waste

ISSUE


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To what extent can we develop sustainable buildings in the presentcontext? Is there a solution?

The Need for a right approach!!!!

Alternative passive design technologies

Alternative materials - reducing glazing, aluminum composite panel,etc.


13/18LITRATURE CASE STUDY

EXAMPLE FOR A CONTEXT RESPONSIVE SUSTAINABLE BUILDING


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Mapungubwe Interpretation Centre , SAPeter Rich Architects

entrance to the MapungubweNational Park located in north-east South Africa near the borderswith Zimbabwe

strong architectural experience-one that fits seamlessly into itsEarthy landscape

Traditional building techniques

use of locally produced brick,stone from local quarries andwooden secondary

sun-shading structures


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SUSTAINABLE URBAN DWELLING UNIT (SUDU),ETHIOPIA

demonstrates the possibility to construct multi-storey buildings usingonly soil and stone.

Combines timbrel vaults and compressed earth blocks

No use of steel, reinforced concrete or even wood to support floors,ceilings and roofs.

The SUDU could be a game-changer for African cities, wherepopulation grows fast and building materials are scarce.


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The timbrel vaults (made of layers of slender bricks on a bed of rapid-set concrete) of the various pavilions rise from the land like naturalelements. The slightly sloping ground makes them look even more likenatural outcrops.

sloping terrain is an integral part of the architectural design

providing viewpoints along the paved route set between dry-stonewalls and from the terraced seating carved out of the hillside.

The stone cladding of the roofs andmost of the walls echoes the coloursof the surrounding savannah

DOMED VOLUMES

TIMBREL VAULT PAVILLIONS

NATURAL STONE CLADDING

References to vernacular and traditional african architecture blendhere perfectly with contemporary design and materials.


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Timbrel vaultreinvented by ZurichUniversity cardboardformwork technique

build up formworkout of pallets and

computer-cutcardboard


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built form impacts

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