light or heavy façades: where is the limit?
TRANSCRIPT
Light or heavy façades: Where is the limit?
High-Tech - Low-Tech
Lightweight Building Envelopes
28 October – Bressanone-Brixen, Italy
Advanced Building Skins 2014
Maria Elena Pla
Architect, Barcelona
Light or heavy façades: Where is the limit?
Design criteria
Light or heavy façades: Where is the limit?
Weight-efficiency?
Light or heavy façades: Where is the limit?
Paris, 1771 -> Fardier de Cugnot
Tare:
2.500 kg
Payload: 4.000 kg
Speed: 7,5 Km/h
Light or heavy façades: Where is the limit?
Formula-E -> Lightness as a goal
Tare: 888
kg
Payload: 888 kg
Speed: 225 Km/h
Light or heavy façades: Where is the limit?
We = Lp / M
Light or heavy façades: Where is the limit?
What is light or heavy?
Light or heavy façades: Where is the limit?
Case study 1 Wall with light steel frame system, thermal
insulation, mineral boards and external
rendering - Aquapanel WM 311C -v14:
tested specimens 2.600 x 3.300 mm, span
between horizontal 3.300 mm span
between vertical 600 mm.
Light or heavy façades: Where is the limit?
Aluminium curtain walling by Hydro Building
Systems, practical example (Zamora et al,
2005) with separation between mullions 1.200
mm, separation between transoms 1.000 mm
/ 2.300 mm (3.500 mm total height between
floors), double glazing with 8 mm thick
reflective and toughened glass + 155 mm air
cavity + (4+4) mm laminated glass.
Case study 2
Light or heavy façades: Where is the limit?
Case study 3
Solid wood slab system forming a wall with mortar
external rendering, 140 mm insulation of wood
fibre, wood slab made of cross laminated timber
panels, 50 mm insulation of wood fibre and double
layer of laminated gypsum boards.
Light or heavy façades: Where is the limit?
Case study 4
Single-leaf masonry wall made of autoclaved aerated
concrete blocks thin layer mortar, external and internal
rendering.
Light or heavy façades: Where is the limit?
Single-leaf masonry wall made of vertical perforated
lightweight clay blocks, ordinary mortar on horizontal
joints and external and internal rendering.
Case study 5
Light or heavy façades: Where is the limit?
Wefaçades = F / M
Light or heavy façades: Where is the limit?
Wefaçades = 200 / M
Light or heavy façades: Where is the limit?
Weight on
Basic
Requirements
CPR (EU) 305/2011
Light or heavy façades: Where is the limit?
Hygrothermal behaviour
Light or heavy façades: Where is the limit?
Performance in front of fire
A. Diego / F. Bermejo - ITeC - Fire Seminar BCN 2014 Fundación Fuego
Light or heavy façades: Where is the limit?
Performance in front of fire
A. Diego / F. Bermejo - ITeC - Fire Seminar BCN 2014 Fundación Fuego
Light or heavy façades: Where is the limit?
Life-cycle thinking
Acoustics
Light or heavy façades: Where is the limit?
There is much to be done...Thanks for your attention