assessment 1
Pre-industrial wood buildings used
Log or frame construction
was mass-produced for single family houses post war
Stud frame construction
The post-war period
mass-produced flat-packed houses
An early example of a stud frame building is
Augustine Taylor St Mary’s Church
Augustine Taylor St Mary’s Church is located
in Chicago
An early example of solid wood construction is
Butler Square
Butler Square was built in
1908
Butler Square
a timber post-and-beam construction that was used to meet the warehouse’s heavy loading.
Large Solid Sawn timbers
Have been growing for a long time
Glulam
Parallel bonded dimensional lumber
In the last 20 years, what has re-emerged as a hi-tech material
Engineered lumber
Engineered lumber is also known as
Solid wood or mass timber
The wood innovation and design centre (WIDC) is by
Michael Greene architects.
The wood innovation and design center (WIDC) has
Glulam Columns and Beams
CLT floor slabs
CLT walls- Lift/services core
Integrated services
floor build up
Curved glulam
The Haesley nine bridges golf club house on Jeju island south Korea
Shigeru Ban made
Curved Glulam
LVL
Laminated veneer lumber
LSL
Laminated strand Lumber
PSL
Parallel Strand lumber
CLT
cross-laminated timber
Illwerke center Montafon is by
Hermann Kaufmann
What are the two hybrid systems
Illwerke centre montafon and The wood innovation and design centre
Illwerke centre montafon is
120 meters long
5 storey - hybrid system
Glulam columns and beams
concrete floors.
mass timber provides structural stability by
bonding together dimensional lumber
Bonding wood makes it possible to
predict its strength
By bonding wood it makes
it dimensionally accurate
Generally the visible “plys“
follow the direction of forces.
mass timber unique quality is that
it provides insulation through a burnt “Charred Surface”
Mass timber must be protected from
direct sunlight/UV light
Mass timber must not be exposed to
Rain, Standing water or allowed to soak.
Mass timber transmits
sound
Mass timber needs acoustic isolation to
Migrate sound
Mass timber stores
Carbon
How do mass timber store carbon?
Trees sequester carbon during their life pulling carbon dioxide from the atmosphere and storing it in their mass, roots, and surrounding soil until the three burns or decomposes or the soil is disturbed then the carbon is re-released into the atmosphere.
1 ton of carbon is contained in
1 cubic meter (35 cubic feet) of wood.
1 Metric ton of carbon is a sphere approximately
30 ft in height
Fire regulations meant
Oversizing the timber to meet 60 min fire rating.
site assembly
high levels of logistics
The advantage of Glulam is that
it exceeds the lengths of trees through lamination.
Glulams average height is
60’ tall
Swiss media center is by
Shigeru Ban
The Shigeru Ban building features
an interlocking post and beam structure with no metal fasteners.
The gravity loads in the Shigeru ban are carried through
a timber structure
What was the aim of the Shigeru Ban
To create warm interiors and visual juxtaposition of wood in the city
Hardwood beech plates reinforce the connection between
Column and beam
Operable windows allow
Exposure to fresh air
Wood to wood connections replaced by
Metal, Adhesive or all three