(H10 – CARBON & MATERIALS)
COP21 = international climate conference Paris (21e) – organized by VN as
part of UNFCC: framework convention on climate change
Limit global rise to below 2°C aspirational goal: 1.5°C
COP28 = 28e conference in Dubai
Triple global renewable energy cap by 2030
Double E efficiency by 2030
Phasing out unabated fossil fuels
CARBON Warm our houses greenhouse gasses = atmospheric gasses: C02,
CH4, H20
- Absorb & re radiate heat
- Warms the lower atmosphere & earth’s surface
- 1t of carbon = 3.67t of CO2
Net zero carbon = not enough
H11 – STRUCTURAL ADAPTABILITY
CASE STUDY C1 Provinciehuis Antwerpen, XDGA, Bollinger + Grohman: fixed
1
, window angle: increase of daylight up to 25%
HERHALING Structure strength – stiffness – stability
External forces / loads: permanent (self-weight of structure,
additional self-weight) + temporary-live loads
(people, wind, snow)
Support conditions:
Moment & deflection diagrams
Beams & slabs
- Driven by bending moment
- Driven by deflection = I = bh stiffness: H+, I-
Sustainable structures Traditional approach: geometric- statical model
Timber construction Integrated design: geometric + statical model
CASES Use computer to improve: evolution + computation
Sagrada Familia, Gaudi – YMCA swimming pool, Vaulting – Haduwa
arts & cultural centre Ghana, B+G (applied foreign affairs) – Taiyuan
botanical garden, Meissl, B+G (structure craft) – Luigi Nervi
(paddenstoel construction concrete) – smart slab system, Aziz
Timber construction – B+G, roof
of the Franz Masereel centre:
reciprocal frame: glass cylinder
+ cone roof + gardens
Designing curved timber structures in the age of digital
crafting
Wooden Pavillon,Hunting Valley, Hohio USA, 2013, B+G
Hermès Moscou, Russia, RDA, B+G
Hermès Sydney, Astralia, RDAI 2018, B+G
Rethink, reflect, change Responsibility: interaction of technical systems: ecology + economy
+ society they take into account: design criteria + future
generations
REALITY: cost & time pressure need easy & fast solutions
Carbon footprint = sum of greenhouse gas emissions & removals
in a product system, expressed as C02 equivalents & based on a life
cycle assessment using the single impact category of climate
change
- CO2 emissions private life: ca. 11 t CO2 per person per
year
- Project size: Project size ca. 20.000 m2 GFA / year - ca. 250
kg/m2 CO2 equivalent in average in the structure - ca. 5
engineers involved
= ca. 1000 t CO2 per engineer per year
Private life – sustainable lifestyle – 2ton
2
