WIND SERVICEABILITY DESIGN OF TALLER TIMBER BUILDINGS
Presentation of a large in-situ testing campaign of tall timber buildings, their dynamic response and finite element modelling & updating. Dissemination of new design guidelines
Project: Dynamic Response of Tall Timber Buildings under Service Load (DynaTTB)
The Dynamic Response of Tall Timber Buildings under Service Load (Dyna-TTB) project is supported under the umbrella of ERA-NET Cofund ForestValue. Its aim is to quantify the structural damping in as-built tall timber buildings (TTB), identify and quantify the effects of connections and non-structural elements on the stiffness, damping and wind-induced dynamic response of TTBs, develop a bottom-up numerical finite element model for estimating the dynamic response of multi-storey timber buildings, validate the predicted response with in-situ measurements on TTBs and disseminate findings via a TTB Design Guideline for design practitioners.
STATE OF THE ART IN TIMBER SEISMIC DESIGN
Presentation of the most relevant timber seismic design endeavours in USA, Canada and Europe, including the ongoing biggest full scale shaking table test in history.
Project: NHERI Tallwood, Seismic Performance of Mass Timber Systems
The first talk will present the NHERI Tallwood project, an NSF-funded research effort to develop and validate a resilient-based seismic design methodology for tall wood buildings. The project started in September 2016 and will last through 2022. This presentation will begin with a project overview including past testing, analysis, and design of a full-scale 10-story building with post-tensioned rocking wall lateral systems to serve as the seismic force resisting systems and provide re-centering capabilities. The test building will be subject to multiple earthquakes including more than six earthquakes having mean recurrence intervals of 2500 years.
The second talk will introduce the audience to the latest research related to mass timber seismic force resisting systems (SFRSs) at FPInnovations and Canada in general. The efforts in code implementation of various mass timber systems in Canada will also be discussed. Details of a new Canadian Wood Construction Research Network will also be presented.
The third talk will present the two aspects that mainly influence the mechanical behaviour of CLT shear walls: connections and openings. The results of experimental projects recently conducted by CNR-IBE timber research group will be presented and discussed, namely:
1.biaxial connectors; 2. shear-key connectors and 3. mechanical behaviour of CLT shear walls with door or window openings.
VISIBLE MASS TIMBER IN BUILDINGS AND FIRE SAFETY CHALLENGES
Presentation of three recent fire safety project dealing with issues of visible timber during fire situations, the challenges it brings and how to overcome them.
Project: Fire safety challenges of tall wood buildings, Glue line integrity in fire, Fire Safe Implementation of visible mass timber in tall buildings.
New mass timber materials such as CLT have significantly increased the possibilities and popularity of timber as a structural material. Among other things, mass timber materials are often cited for their aesthetic qualities, which is confirmed by strong architectural demands for having visible timber surfaces in buildings. The visible mass timber, however, is a combustible material which introduces new fire safety challenges. This workshop will discuss these challenges, which include the possible influence of mass timber on fire development, burnout resistance and façade exposure. Also, less studied aspects such as fire-fighting challenges and structural damage after a fire will be discussed. The workshop will finally discuss recent research that created knowledge to overcome some of these challenges. An interactive part of the workshop is planned, in which the opinion and background from the audience will be asked anonymously and on voluntary basis. Questions in this interactive section will mostly concern opinions regarding suitable performance goals for buildings of different types.
SERVICE LIFE PERFORMANCE SPECIFICATION OF WOOD
Presentation of a performance-based specification protocol to enable a software tool for architects, specifiers and the public to embed service life performance specification for wood.
Project: Delivering fingertip knowledge to enable service life performance specification of wood (CLICKdesign)
CLICKdesign will develop a performance-based specification protocol to enable provision of a software tool for architects and specifiers to embed service life performance specification for wood. The expected major breakthrough of CLICKdesign is the development of a performance-based specification protocol for wood in construction and enables provision of a software tool for service life performance specification for planners and architects. This major innovation will expand the reach of wood products to new users beyond the small proportion of specifiers who are xylophiles and ‘wood aware’, increasing market confidence with users for wood as a reliable product and expand possibility for new product innovations. This supports the forest sector’s vision to triple market share for wood products and services in construction by 2030. The CLICKdesign tool will facilitate reaching this goal by combining an easy-to-use tool with pedagogic background information.
SUSTAINABLE WOOD CONSTRUCTION FOR RURAL DEVELOPMENT AND URBAN TRANSFORMATION
Demonstrating how ‘forest to building’ construction chains can be optimized to foster both rural development and urban transformation whilst being connected with sustainable forest management in Europe.
BASAJAUN is a major European innovation action about building with wood. The project partners have developed and tested innovative materials, products, building systems and digital supply chain solutions for manufacturers and end users. The proof points for industrial end users and customers include a full record of the product’s technological and sustainability characteristics, productivity, cost efficiency and competitiveness. Two demo buildings are being constructed in Finland and France that integrate various of these innovative materials and solutions. Furthermore, the team prepares the setup of an open innovation platform, which facilitates further dissemination, exploitation, and upscaling of the results together with other companies and regional stakeholders. The project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 862942. The consortium is coordinated by TECNALIA and comprises 29 partners in 12 countries.
INNOVATIVE SOLUTIONS FOR THE PROMOTION OF MID-RISE TIMBER
Application and dissemination of innovative solutions for the promotion of mid-rise timber construction in the Sudoe area.
Project: Sudoe Eguralt
The objective of EGURALT is to apply and disseminate innovative solutions for the promotion of mid-rise timber construction in the SUDOE area, thus contributing to the global fight against climate change by promoting the use of natural materials from sustainable and renewable sources. Eight beneficiary entities from six regions of the SUDOE area are working in three fields: the promotion of mid-rise public timber buildings; the development of new technological timber products; and the transformation of the wood sector necessary for the paradigm shift in construction in the SUDOE area. The main contributions are: 1) the exchange of knowledge between technological poles, public authorities and industry through stakeholder tables, study visits…; 2) the application testing of new products and processes and dissemination with industry; and 3) the capitalization of knowledge through training courses for timber advisors in the construction industry.
A SUSTAINABLE INTERNATIONAL WOOD VALUE CHAIN AND NETWORK
Developing a sustainable and innovative wood value chain for the construction of multi-storey wood buildings. Connecting stakeholders into a permanent and self-sustainable network.
To meet the global and European challenges of reducing the GHG emissions from the construction sector, Build-in-Wood will develop a sustainable and innovative wood value chain for the construction of multi-storey wood buildings. The ambition of the project is to make optimized and cost-effective wood construction methods common practice in the European construction sector. Build-in-Wood will address this challenge by innovative development of materials and components as well as structural systems and façade elements for multi-storey wood buildings fit for both new construction and retrofitting. Developments will be tested, piloted, and fully documented for immediate market uptake. Active engagement of selected cities will strengthen the urban-rural connections. The project aims to lay the foundation for post-project full scale construction projects using developed solutions.
HYBRID TIMBER STRUCTURAL COMPONENT
Presentation of structural and fire performance for a new type of timber-concrete composite system with adhesive bonding
Project: Adhesively Bonded Timber-Concrete Composite (TCC) Hybrid System for Sustainable Built Environment
The inherent negative properties of timber such as low tensile strength in direction perpendicular to fibres, high variability of properties, and long-term reliability issues such as durability, largely limit its wider application in civil infrastructure. One effective approach to mitigate these negative properties of timber in structures is the combination of timber with other building materials such as concrete to form hybrid timber structural system with enhanced load bearing capacity, stiffness, dynamic performance, and thermal building performance and fire performance, i.e. timber-concrete composite (TCC). This workshop will introduce a new type of TCC system with adhesive bonding which is suitable for constructing new buildings and retrofitting old buildings. The mechanical and fire performance of adhesively-bonded TCC system will be introduced.