aravinda devaraj(1rv05at004)preetha a meda (1rvo5at046)

WOOD IN LANDSCAPE

[8th sem, b.arch ‘a’

06-03-2009]

[LANDSCAPE ARCHITECTURE]

TREATMENT FOR WOOD USED OUTDOORS..

Why does wood need to be treated?Wood will decay if temperature, oxygen, and moisture are not controlled. The simplest way to prevent biological deterioration is to keep wood dry. However, this is not practical for outdoor structures. Where temperature, oxygen,and moisture cannot be entirely controlled, use of decay-resistant wood species and/or woods treated with preservatives is the only option to prevent wood deterioration.

What form of deterioration can take place?•Decrease of strength due to faults.•Absorption of water, thereby causing warping.•Raised grain•Shelling

So how is treatment done?Wood is treated with copper and arsenic forced into the grain inside high-pressure cylinders. Because the chemicals are fixed in the wood and don't leach out, pressure-treated wood is safe to use in vegetable gardens. •Wood preservative contains chemicals that kill the fungi and insects that discolor or destroy wood. •A water repellent is a penetrating wood finish loaded with oils or waxes designed to prevent water from soaking into wood.

After wood is properly treated with any waterborne-preservative-treatment process, it is re-dried (kiln dried or air dried).

SOME WOODEN STRUCTURES..

Gundagai, NSW, Australia

…BRIDGES

Arizona

Muritzeum

Oldest bridge in Thailand

…BRIDGES

Harrisburg Covered Bridge , Sevierville

Europe’s oldest wooden bridge

…DECKS

…DECKS

Nomad Home, Salzburg, Austria

…SEATING

…SEATING

…PERGOLAS

House in Kottayam

…PERGOLAS

…STAIRS

…STAIRS

…SCULPTURES

Pavilion Expo, Hungary

Pavilion Expo, Holland

…WALLS

Pavilion expo 2000, Switzerland

Traditional Chinese screen wall

…WALLS

Traditional Japanese Compound

Bamboo wall

Wall in Holland

…RETAINING WALLS

Komyo-ji Temple, Japan

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…POPULAR WALLS

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SOME PROJECTS..

Geometric hot springs

Villarrica National Park

chilea

The Geométricas Hot Springs, or Cajón Negro, as they used to be called, are the result of an ambitious project carried out by architect, Germán del Sol.

He strived to create a harmonic balance between nature and geometry by constructing the hot springs from mainly wood and raw materials.

These hot springs are characterized by an abundant number of thermal fountains, around 60 in all. They spring from the Aihué ravine at temperatures of 176°F (80°C).

17 pools have been created with red wooden paths and ramp.

plan

The wooden footbridge that passes through the center allows one to look around the ravine and choose one’s favorite pool in which to bathe.

Close to every pool there is a wooden pavilion with private bathrooms, locker rooms, and a deck for resting

Under the footbridge, which is about 1,476 ft. long (450 m), the thermal waters flow into the pools through a wooden channel that directs the water.

Around these springs, there’s meeting place, ‘’quincho’’, assembled of pure wood, where one can sit and chat with friends after a refreshing bath. It’s a covered and warm space around an open fire.

The lighting is unobtrusive and allows one to experience the natural darkness of the environment as it is, while providing the required minimum illumination for safe circulation.

The geometry highlights the natural and separates it from the built.

This architecture distinguishes the place and makes it irreplaceable.

The Serpentine gallery pavillion

london

"The Pavilion is designed as a wooden timber structure that acts as an urban street running from the park to the existing Gallery…”

Gehry and his team took inspiration for this Pavilion from a fascinating variety of sources

including the elaborate wooden catapults designed by Leonardo Da Vinci as well as the

striped walls of summer beach huts.

“…Inside the Pavilion, glass canopies are hung from the wooden structure to protect the interior from wind and rain and provide for shade during sunny days…”

“…The Pavilion is much like an amphitheater, designed to serve as a place for live events, music, performance, discussion and debate…”

“…As the visitor walks through the Pavilion they have access to terraced seating on both sides of the urban street...”

“… In addition to the terraced seating there are five elevated seating pods, which are accessed around the perimeter of the Pavilion. These pods serve as visual markers enclosing the street and can be used as stages, private viewing platforms and dining areas."

Part amphitheatre, part promenade, these seemingly random elements will make a transformative place for reflection and relaxation by day, and discussion and performance by night.

The structure is anchored by four massive steel columns and is comprised of large timber planks and a complex network of overlapping glass planes that create a dramatic, multi-dimensional space.

Yokohama International Port Terminal

yokohama, japan

"Our proposal for the project starts by declaring the site as an open public space and proposes to have the roof of the building as an open plaza. The project is then generated from a circulation diagram that aspires to eliminate the linear structure characteristic of piers, and the directionality of the circulation." FOA

The brief of the Yokohama International Port Terminal

asked for the articulation of a passenger cruise terminal and a mix of civic facilities for the

use of citizens in one building.

The project is a mediating device between the system of public spaces and the management of the cruise ship passenger flow.Rather than a symbolic figure or object, the structure materializes a state of union between land and water

The structure doesn’t follow the conventional column and beam system. Instead, it uses interlocking steel plates at inclination to one another as a result of which the plates fold up to form the different levels. This also copes with the lateral forces generated by seismic movements that affect the Japanese topography.

In addition to the structural advantage of this technique, it contributes to the architectural language of the building- it gives a sense of continuity.

This sense of continuity is essential to the design.

The site had a pivotal role along the city's water front that, if declared a public space, would present Yokohama City with a continuous structure of open public spaces along the waterfront.

There is a continuity of the exterior to the interior; a continuity between the levels; a continuity of the natural landscape onto the roof of the terminal.

A reduced palette of materials, details and finishes emphasizes the project’s objective of performing a functional and conceptually innovative role in the creation of transitional spaces.

All secondary system that are applied to the steel topography, mainly wood-deck flooring system, glazing system and fencing/handrail system use a single detail along the length of the building and only vary to explore the geometrical variation across spaces. The ambition was to construct continuous but differentiated spaces along the length of the pier.

WEBSITES:

www.archdaily.com

www.arcspace.com

www.wayfaring.info

www.fpl.fs.fed.us

www.archrecord.construction.com

http://www.building.co.uk

BOOKS:

International year book- No.7

Architecture Now- Vol.2

Great New Buildings of the World

New Minimalist Houses- Anja Llorella

New Sustainable homes- James Greyson Trulove

... REFERENCES