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Green gazebo: a little look-out tower shows mastery of timber technology.


Helsinki Zoo is on Korkeasaari, one of the forested islands that stud the massive and wonderfully picturesque Helsinki harbour. It houses a remarkable collection of animals--most kept, as one might expect in such a civilized country, in large enclosures in which they can roam about with some semblance of freedom. Curiously, the only creatures that are clearly confined con·fine  
v. con·fined, con·fin·ing, con·fines

v.tr.
1. To keep within bounds; restrict: Please confine your remarks to the issues at hand. See Synonyms at limit.
 in a cage are humans.

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The cage for humans is a 10m high look-out tower designed by Ville Hara Ville Hara (born 1974) is a Finnish architect. He studied architecture at the Helsinki University of Technology and Ecole d’Architecture Paris-Belleville and graduated as an architect in 2002. , then a student in the Wood Studio at Helsinki University of Technology TKK redirects here. For other uses, see TKK (disambiguation).
Helsinki University of Technology is not to be confused with University of Helsinki.
Helsinki University of Technology (TKK) (Finnish: Teknillinen korkeakoulu; Swedish: Tekniska högskolan
 (AR September 2003). Hara won a competition set by the zoo and Wood Focus Finland, and he came to the form following a careful study of the site and its potential. The gazebo gazebo

Lookout in the form of a turret, cupola (small, lanternlike dome), or garden house set on a height to give an extensive view. Few late-18th- and 19th-century rustic gazebos survive, but 17th-century turrets built up in an angle of the garden wall are not uncommon.
 had to command the wonderful panorama of sea, island and city skyline, and at the same time respond to its immediate surroundings: a small birch grove to the east, the steep west-facing slope of the ibex enclosure going down to the sea, and an existing low surrounding wall.

Hara decided to make a form that bulged gradually towards the city to allow visitors to take in the panorama as they climb and to preserve the birches behind. The object proved initially to be very difficult to draw. So he made a model in plasticene. Digital images of the model were then used to make conventional drawings. From that, a one-to-five scale model was generated, in which the complexities of bending and the joints could be investigated. Then, full-sized individual members of laminated laminated /lam·i·nat·ed/ (-nat?ed) having, composed of, or arranged in layers or laminae.

laminated

made up of laminae or thin layers.
 spruce spruce, any plant of the genus Picea, evergreen trees or shrubs of the family Pinaceae (pine family) widely distributed in the Northern Hemisphere. The needles are angular in cross section, rather than flattened as in the related hemlocks and firs.  could be created to see how they would behave in practice.

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The Korkeasaari building, with more than 600 bolted joints, was created by eight students over some three months in the summer of 2002. Dry weather necessitated steaming the 72 component laminated battens to seven shapes determined by previous experiments. All wood components are treated with linen oil and all steel elements are galvanized gal·va·nize  
tr.v. gal·va·nized, gal·va·niz·ing, gal·va·niz·es
1. To stimulate or shock with an electric current.

2.
. The gazebo should last for generations. It is structurally like an eggshell, so it can withstand local damage and alteration (for instance the rectilinear rec·ti·lin·e·ar  
adj.
Moving in, consisting of, bounded by, or characterized by a straight line or lines: following a rectilinear path; rectilinear patterns in wallpaper.
 entrance door).

The jury was very impressed by the thoroughness of the creation of the little structure, its understanding of materials, and its generous response to location, both as a part of the harbour panorama, and as an observer of it. P. D.

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Publication:The Architectural Review
Article Type:Brief Article
Date:Dec 1, 2003
Words:398
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