Examination arrangement

Course content

• Orthotropic elasticity and failure criteria
• Laminate theory
• Analysis and design of cross-laminated timber
• Analysis and design of light timber frames and diaphragms
• Analysis and design of timber composite beams and floors
• Transfer of stresses by glue or contact
• Serviceability limit states: displacements and vibrations of timber floors and timber buildings
• Splitting and reinforcement of timber elements and details
• Structural fire design of timber structures
• Design of timber bridges: Structural concepts, stress-laminated decks, and fatigue

Learning outcome

Timber Structures 2 is the second of the two courses within design of timber structures. Timber Structures 2 covers advanced topics related to the structural design and analysis of timber structures. Together with TKT4211 Timber Structures 1, the course offers a comprehensive basis in the analysis and the design of timber structures.

Knowledge

The students shall have knowledge about:

• Finite Element Modelling of wood and wood-based materials and composites.
• Mechanical behaviour of Cross-Laminated Timber, light timber frames and diaphragms, composite beams and floors
• Structural response and serviceability requirements for timber floors and buildings.
• Structural details and elements with risk of splitting (beams with holes, notched supports, double-tapered and curved beams, connections) and their reinforcement.
• Mechanical behaviour of timber elements exposed to fire.
• Design concepts and structural elements of timber bridges.

Skills

The students shall be able to:

• Perform advanced Finite Element analysis of timber structures, elements, and details.
• Evaluate stresses and deformations of Cross-Laminated Timber and timber composite elements, including time-dependent effects.
• Perform all necessary design verifications of Cross-Laminated Timber and timber composite elements according to Eurocode 5.
• Evaluate the Serviceability Limit State of timber floors and buildings according to Eurocode 5 and other international standards.
• Determine the stress state in elements prone to splitting and design the reinforcements by metal fasteners or glued wood-based panels.
• Perform the structural fire design of timber components according to Eurocode 5.
• Perform the analysis and the design of structural components of timber bridges according to Eurocode 5, including the effects of fatigue.

General competence

The students will acquire competence on:

• A comprehensive theoretical foundation of a wide range of timber engineering aspects, and the background of the relevant design rules.
• The structural analysis of a wide range of timber constructions for several design situations.

Digital competence

• 1D, 2D and 3D Finite Element modelling of timber elements and details by skilled use of structural analysis programs.

Sustainability competence

• Design of a wide range of timber structures with adequate safety and optimized cost and material use.
• Evaluating the feasibility of using timber in constructions to take advantage of wood being a renewable material with low greenhouse gas emissions.

Learning methods and activities

Lectures and examples.

Project-based learning requiring analytical and numerical calculations.

Lectures, examples and project are given in English. Students are free to choose Norwegian or English for the assessment.

Further on evaluation

The assessment is based on the project report. An oral discussion about the delivered project is obligatory.

Recommended previous knowledge

Knowledge of statics and structural mechanics as taught in TKT4116 Mechanics 1 and TKT4122 Mechanics 2 or equivalent courses.

Knowledge of loads and load combinations as taught in TBA4125 - BM4 Design of Buildings and Structures or equivalent courses.

Required previous knowledge

TKT4211 Timber Structures 1, or equivalent courses.

Course materials

• Lecture notes and presentations given during the semester.
• Eurocode 5: EN 1995-1-1, EN 1995-1-2, EN 1995-2, amendments and Norwegian National Annex.

Recommended supplementary textbooks:

• Swedish Wood, The CLT Handbook, ISBN 978-91-983214-4-3
• KIT, Blaß and Sandhaas: Timber Engineering - Principles for Design, ISBN 978-3-7315-0673-7