New level set for timber engineering

Friday 22 Jul 2011

 
Finnforest Kerto LVL is featuring in one of the world’s largest timber buildings. The Metropol Parasol in Seville in Spain forms a public space covering 11,000m².

Designed by German architects Jurgen Mayer H, it actually comprises six timber parasol structures reaching up to 28m high. Mika Kallio, Finnforest head of Building Products, says the composite structure “sets a totally new level for timber engineering”.

“It is perhaps the most complex ever built,” he said. “The extremely large dimensions involved, a three-dimensional load bearing system and creative geometrical forms have been great challenges for the use of wood and engineering skills.” The use of load-bearing Kerto LVL was made even more unusual, he added, by the process of post-curing using an epoxy resin, as well as application of a polyurethane spray coating.

The structure has concrete foundations and lift towers and the load-bearing platform for the restaurant in the building 21.5m above the ground is steel and concrete. But the core of the building comprises 68-311mm thick Kerto-Q panels in an orthogonal grid with a spacing of 1.5x1.5m.

The largest of the total of 3,400 wooden parts, comprising 2,500m³ of Kerto, measures 16.5m high by 3.5m wide and 140mm thick. On its various levels, the parasol houses an archaeological museum, a market hall and event space. The 300m² restaurant sits among the beams of the roof next to a public promenade giving panoramic views over Seville.

Source: TTJ


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