|SS.1||Structural performances of traditional timber structures in East Asia
The session will be focused on East Asia traditional timber structures regarding mechanical property tests of timber materials, structural testing and numerical modelling, in-situ inspection technologies; retrofitting and strengthening, and cases studies, among others.
|SS.2||Timber-based hybrid structures
Wood is an excellent building material; impressive results in terms of both architecture and structural efficiency can be achieved by using this material as it is. The question is: can one combine wood with other materials, such as steel or concrete, so that all materials can be exploited more effectively than each separately, thus contributing to the development of more resource-efficient structural members and buildings?
|SS.3||Tools for reliability and uncertainty for assessment of existing timber structures
When dealing with existing timber structures, the structural safety assessment and evaluation of each component, either the members themselves or the connections, and the system reliability must be determined according to the requirements applied to new structures but also taking into consideration its past performance and its historical value. Besides the intrinsic variability of timber as a construction material, inspection and testing methods have also to be considered with a level of uncertainty. Reliability and probabilistic approaches have been used to model and analyze those uncertainties and to take them into consideration in a more detailed assessment of the safety level of existing timber structures. This session includes works related to the analysis of the variability of the material properties, of its defects and moreover of the local and global reliability level assessment of timber elements, joints and structures.
|SS.4||Fire and evacuation modeling in timber buildings
Fire is always in the mind of a timber structure designer and more and more they are aware of the need for efficient evacuation modelling. How this can be achieved is an important issue and requires a holistic approach.
|SS.5||Traditional architecture and construction engineering of the timber structures of South Asia.
Men have been building from time immemorial. Timber had been the most sought after building material due to its physical, biological and mechanical properties. Since its first use, generations have found ways and means of beautifully crafting the material’s aesthetic and structural properties into durable long lasting architectural marvels. This session would try to explore the existing traditional construction methods and means, the preservation techniques involved in structuring the timber marvels of South Asia last for centuries. The aim is to identify and rediscover the regional ways of timber construction and conservation methods and bring them on a common platform to compare and contrast the construction systems that gave the structures longevity of life. The countries that would be covered would be the ones located in the southern region of the Asian continent, which comprises the subHimalayan SAARC countries and, for some authorities, adjoining countries to the west and east with profound timber architecture.
|SS.6||Geotechnologies applied to the structural control and health monitoring in historical timber structures
This special session deals with the application of techniques such as: LiDAR systems (laser scanning), thermography, remote sensing, Ground-penetrating radar (GPR) and photogrammetry for the analysis of structural health, 3D modeling and FEM-based simulations of timber structures or mixed constructions of timber and other materials.
|SS.7||Historic Earthquake-Resistant Timber Frames in the Mediterranean Area (H.Ea.R.T @ SHATIS’19)
Timber-framed architecture is an important part of European cultural heritage and is very common across the continent, as well as in other parts of the world: It is estimated that the number of timber-framed buildings in Europe is well above a million including simple single dwellings to urban fabric. They represent a significant part of European building cultures and cultural heritage, as individual buildings or urban historical fabrics, where millions of Europeans are living and where social and economic activities are taking place. To preserve our cultural heritage it is necessary to find common approaches and goals, thus dialogue among experts is essential. The special session “Historic Earthquake-Resistant Timber Frames in the Mediterranean Area” aims at bringing together experts from different countries to discuss such a vast and heterogeneous topic, present the architectural and structural differences of half-timbered constructions and analyse how they spread throughout the world.
|SS.8||From the standards to its practical application: review on standards on structural assessment and examples from practice on the field.
Over the last years, a multitude of guidelines on how to approach the condition survey, assessment and intervention on existing structures have been published; these, focus on formal aspects of the survey, description of the present state, and how to write a practical report. However, they do not offer sufficient technical information to be of any practical significance. In this context of European norms and guidelines, the special session expects to present contributions both on existing codes and practical examples of conservation. The presentations will be held both from researchers belonging to standardization working groups’ and from experts in the field of conservation of timber buildings. The final aim is to determine the discrepancies, variances, incongruities and gaps between the theory and the on-site expertise. The special session wants to promote the discussion among the experts on the field of timber structural assessment and retrofitting, through structured presentations and open discussions with the participants of the congress. Furthermore, it aims to gain a full picture of the European current standards and publications in the aim of possible further research opportunities.
|SS.9||Assessment and management of timber bridges: from past to future
Several examples of old timber bridges may be found still in use and new design of timber bridges has proven to be very competitive for short and medium span bridges raging from just 5 to up to 40 m and sometimes with longer spans. However, it is a usual perception that the expected lifetime of a timber bridge is not comparable to that of a concrete or steel bridge. In this case life cycle assessment is essential to avoid erroneous design/intervention decisions, but so far its implementation on timber bridges is rather limited. This session includes both works related to the analysis, intervention and maintenance of existing timber bridges as well as design of new timber bridges that preview their life cycle assessment.
|SS.10||Low invasive techniques for reinforcement and repairing of timber structural elements
The reinforcement and repairing of existing timber structures is a topic of great interest, considering the wide spread of timber structures in both historical buildings and modern constructions. Moreover nowadays the maintenance and upgrading of existing buildings are a worldwide priority for economic, environmental, historical and social concerns. In particular the need for structural reinforcement and repairing of timber structures is related to several drives, such as change of use or of standard specifications, seismic upgrading, deterioration due to poor maintenance, or exceptional damage.
Aims of the special session are on one hand to gather the current state of art on methods and practice on either traditional, modern or new techniques, considering both timber or different materials based solutions, mechanical fasteners and adhesive systems, on the other hand to evaluate methods, technical rules and techniques in terms of applicability, time and cost of realization, efficiency, durability. Low invasive techniques are the focus, matching the principle of conservation and the safety requirements together with the cost demand. Reference to case studies is also welcome.
TThe special session invite the contribution and participation of all stakeholders in research and industry.