Tall Wood Buildings
Acquire new skills and know-how troughscientific excellence
Stéphane HAMEURY

Tall Wood
Buildings
Acquire new skills and knowhow trough scientific excellence
Stéphane HAMEURY, Deputy Director
Business Unit Safety Structures and Fire
stephane.hameury@cstb.fr

Tall Wood Building
Context

Tour HoHo

Mid-rise and tall woodbuildings reflect anemerging trend in many
cities around the world.

Vienne, Autriche
24 storey
Attendue en 2018

Goupe Sumitomo Forestry
Japon
70 storey, 350 m

Project 2041

Brock Commons
Vancouver, Canada,
18 storey, 2016

Scientific and technologicaladvances are expected to support
creativity and innovation
3Tall Wood Building
Context

Hyperion
Bordeaux
Eiffage
57m

Ilot Bois
Strasbourg
Eiffage

Marne-la-Vallée
Vinci
R+10

Tour Silva
Bordeaux
Kaufman & Broad>50m

4Acquire new skills and know-how troughscientific excellence: Fire Safety Engineering
Can we demonstrate the self-extinguishment capacity of wood structure as afunction of the thermal action without any intervention of fire brigades?

5Acquire new skills and know-how troughscientific excellence: Structure
How to predict the dynamic response of tall wood buildings against wind?
European Project DynaTTB: ForestValue Joint Call for Research Proposals
2017
Overall objective of the project: To identify experimentally a number of fullscale TTB (Tall Timber Buildings) structures and, based on these, develop
reliable dynamic models for predicting the dynamic performance of TTBs
exposed to dynamic loading due to wind.
Scientific and technological objectives:• To quantify the structural damping in as-built TTBs.
• To identify and quantify the effects of connections and secondary
elements on the stiffness,• damping and wind-induced dynamic response of TTBs.
• To develop a bottom-up numerical model for estimation of the dynamic
response of multistorey• timber buildings.
• To validate the predicted response with in-situ measurements on TTBs.

How to predict the mechanical resistance and the rigidity of timber connections for tallwood buildings? What is the effect of an aftershock on damaged connections for tall6
wood buildings? Which level of damage is acceptable to guarantee resilience?

Acquire new skills and know-how troughscientific excellence: Envelope
How to design and evaluate cladding systems compatible with tall woodbuildings?
Type of cladding

Height of the building
≤ 6m

≤ 9m

≤ 10m

≤ 18m

≤ 28m

≥28m

Wind zone in France
1a to3c4d

1a to3c4d1ato3c4d

1ato3c4d

Wood cladding (DTU 41.2)

YES

YES

YES

YES

YES

YES

YES

YES

--

Metallic cladding (CSTB 3747)

YES

YES

YES

-------

Non
traditionnal
cladding

Open joints

YES

YES

YES-------

Closed joints

YES

YES

YES

YES

YES-----YES

YES--------

External Thermal Insulation
Composite System

7

Acquire new skills and know-how troughscientific excellence: Environment
How to integrate temporary carbon storage effect in wood buildings?

“Whether or not to give a value to temporary carbon storage is a hotly debatedissue among the environmental assessment community, and there isan increasing need for guidance on the subject.”
Valuing temporary carbon storage. Available from:https://www.researchgate.net/publication/230674956_Valuing_temporary_carbon_storage8Acquire new skills and know-how troughscientific excellence: Health
Is it healthy to live in a wood building? (Provide field measurement of Indoor
Air Quality in wood buildings).
Natural or manufactured wood-based products
exhibit specific emissions of several volatilecompounds
Æ COMPARISON OF BUILDING PRODUCT EMISSIONSTESTED BY CSTB IN RECENT RESEARCH PROGRAMS> Higher emissions of TVOC and formaldehyde from woodbased products

Æ CHARACTERIZATION OF IAQ IN ENERGY EFFICIENTBUILDINGS> Higher concentrations of light aldehydes (formaldehyde,pentanal, hexanal) and terpenes (limonene, pinene) inbuildings with lightweight wooden structure (Derbez et al.,Indoor Air, 2017)
9Acquire new skills and know-how troughscientific excellence: Acoustic
How to enhance the acoustic response of wood buildings at low frequencies?
Field measurement of impact sound insulation: with or without taking into consideration
low frequencies < 100 Hz
Nombre of field meaurements

Wood construction
Concrete construction

Measured differencein dB© Qualitel

10Acquire new skills and know-how troughscientific excellence: Durability
In a sustainable world, are biocides still a valuable preventive response againstfungi and insect’s attacks in wood building?
An innovation protected by 6 patents, the fungal biodetector,
developed by the CSTB, can detect molds andthe development of fungi before they are visible, in order toprotect and preserve heritage assets and works of art.

A complete airborne contaminant surveillance and diagnosis system
for indoor air is now offered by Bioguess, a subsidiary of the CSTB.

11Acquire new skills and know-how troughscientific excellence: Perceived Comfort
How to characterize the perception of well-being when living in wood buildings?

Sensory perception
Objective method for
multicriteria sensory analysis

12Acquire new skills and know-how troughscientific excellence: Economy
What is the market value for tall wood buildings? Discussion on construction
cost and industrialization of tall wood buildings construction.

13

Joint research proposal to support
creativity and innovation