top of page

Wooden column

Raw tree trunk

Wooden column

building

Wooden columns ready for assembly.

From annual forest maintenance 8 tree trunks are harvested, transported and peeled.

Inspection of the timber quality and exact measurement of dimensions and curves are performed.

The tree logs are lifted to their places.

Top and bottom of the trunks are prepared to fit the connector and to transmit structural forces properly.

View after assembly.

Summary

Wooden columns made from sustainably harvested Douglas fir during annual forest maintenance. The tree trunks are untreated and made suitable for assembly with a little preparation of bottom and top.

Details

8 tree trunks were mounted on the deck of GTB Lab in a few hours using steel connectors. The Dutch National Forest and Nature Reserve cut eight Douglas pine trees for GTB Lab as part of sustainable forest management. The use of the entire tree trunk presented the consortium with a rare challenge. Engineers and structural engineers are used to working with straight parts whose wood quality can be easily assessed. Now it had to process eight unique products without a single straight edge.

Owner

Architect

Industry consortium

Location

Apeldoorn, Nederland

Construction year

2019

Gross floor area

Gross building volume

Hazardous materials

None

Circularity data

Reversible BIM: the 3D color-coded model visualizes the reuse potential per element.
RP Building legend.png

Reversible BIM: the 3D color-coded model visualizes the reuse potential per element.

Circularity Profile:

Reversibility:

Reuse building structure:

High quality materials reuse:

Materials recycling:

Embodied mass:

Embodied carbon:

1,95 ton

2,5 ton CO2

No. of elements:

No. of relations:

No. of disassembly steps:

No. of standardized relations:

8

2

4

Avoided waste:

Avoided carbon:

1,59 ton

2,0 ton CO2

Circularity profile

Ratio of reuse strategies followed.

Tonnage

gtb lab phase 1 - circularity profile tonnage.jpg

Carbon

gtb lab phase 1 - circularity profile tonnage.jpg

Breakdown of materials

Tonnage

gtb lab phase 1 - tonnage material distr.jpg

Carbon

gtb lab phase 1 - carbon material distr.jpg

Material per recovery option

Ratio of potential reuse strategies based on Reuse Potential.

Tonnage

gtb lab phase 1 - tonnage recovery option.jpg

Carbon

gtb lab phase 1 - carbon recovery option.jpg

Avoided waste per function, and per recovery option

Tonnage

gtb lab phase 1 - tonnage avoided waste.jpg

Carbon

gtb lab phase 1 - carbon avoided waste.jpg

Overview of materials per recovery option

Tonnage

gtb lab phase 1 - tonnage overview materials.jpg

Carbon

gtb lab phase 1 - carbon overview materials.jpg

Wooden column

chart.png
bottom of page