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Timber Structures

Course Description:

Introduction, areas of applications, comparison of structures made of different materials. Composition, properties, dampness of timber. Basic mechanical characteristics. Structural timber. Calculation principles, strength, forces, combination of forces. Calculation of timber structures. Joints (riveting, bolting, bonding), fabrication and design. Roofs. Frames. Panels. Scaffoldings, formwork. Bridges. Foundations. Durability. Earthquake resistant design of timber structures. The effects of fire on timber. Damage assessment and restoration.

  • Semester 8
  • Teaching hours 4
  • Instructors E. Vougioukas (Coordinator)

Prerequisite Knowledge

Mechanics, Building Materials, Structural Analysis

Course Units

# Title Description Hours
1 Introduction Timber and environments: Photosynthesis process and the cycle of timber. Use of structural timber from ancient times till present. Structure- material properties of timber. Engineered wood products. Structural members. Loading limit states. Moisture and load duration states. Serviceability limit states. 3Χ2=6
2 Design check of sections Design check of sections subjected to uniaxial stresses (tension, compression, bending, shear, tortion); parallel or at an angle to the grain. Design check under combination of stresses. 2Χ2=2
3 Design check of members Columns and members subjected to buckling. Glulam profiles. Frames. Members with tapered, curved or pitched profiles. 3Χ2=6
4 Connections Design of metal dowel type connections: bearing capacity of nails, dowels, bolts, staples. Design of joints with connectors: toothed plates, shear plates or rings. 5Χ2=10
5 Serviceability Design check against deformations and vibrations. 2Χ2=4
6 Composite Sections Glued or pinned sections. Built-Up, spaced and latticed columns. 3Χ2=6
7 Traditional Structures Trusses without metallic connections (using compression force path). 1Χ2=2
8 Timber walls (panels) With sheathing fixed to studs or with CLT. 2Χ2=4
9 Maintenance and repairing of structures Design against earthquake and fire action. Damage and repair of timber structures. Durability in time. 1Χ2=2
10 Auxiliary structures Scaffoldings, retaining structures, temporary supports. 1Χ2=2
11 Detailing Nodes, hinges, foundation points, stability bracing, 1Χ2=2

Learning Objectives

After successful completion of the course, students will be able to:

  1. Master the basic principles and the Codes’ demands for the design of timber structures
  2. To design and perform all necessary calculations for the formation of a timber structure (members, connections, details), including detailing.

Teaching Methods

Teaching methods Class lectures. Examples worked in class.
Teaching media Theory and examples on board and use of Power Point presentations
Problems - Applications Applications worked in class
Assignments (projects, reports) Project (optional)

Student Assessment

  • Final written exam: 70%
  • Assignments (projects, reports): 30%

Textbooks - Bibliography

  1. Ξύλινες Κατασκευές (Κατσαραγάκης Ε.), Πανεπιστημιακές Εκδόσεις ΕΜΠ, γ’ έκδοση, 2015
  2. Structural Timber Design to Eurocode 5 (Porteous J., Kermani A.), Blackwell Publishing, 2012

Lecture Time - Place:

  • Tuesday, 14:45 – 16:30,
    Rooms:
    • Αιθ. 5
  • Thursday, 15:45 – 17:30,
    Rooms:
    • Αιθ. 5