Introduction to Seismic Essentials in Groningen 7.3 Timber - - PowerPoint PPT Presentation

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Introduction to Seismic Essentials in Groningen 7.3 Timber - - PowerPoint PPT Presentation

Jan 20, 2023 269 likes •458 views

Introduction to Seismic Essentials in Groningen 7.3 Timber Structures By Prof Andr Jorissen MSc PhD TU Eindhoven Wind | Model 1 Wind | Model 2 Seismic Activity | Model 3 Seismic Activity | Model 4 Seismic Activity dynamic

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SLIDE 1

Introduction to Seismic Essentials in Groningen

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SLIDE 2

7.3

Timber Structures

By Prof André Jorissen MSc PhD – TU Eindhoven

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SLIDE 3

Wind | Model 1

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SLIDE 4

Wind | Model 2

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SLIDE 5

Seismic Activity | Model 3

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SLIDE 6

Seismic Activity | Model 4

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SLIDE 7

Seismic Activity

Fbase = mass acceleration dynamic amplification factor q

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SLIDE 8

Seismic Energy

(a) no ductility (c) high ductility

q = 2µ −1

µ = δ 2 δ1 µ = δ p δ e

(b) low ductility

NO energy dissipation LOW energy dissipation HIGH energy dissipation

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SLIDE 9

Timber loaded: tension or compression

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SLIDE 10

Structural / Material Behaviour (failure)

Brittle failure: NOT to be preferred

  • bending
  • shear
  • tension parallel to the grain (σt,0)
  • tension perpendicular to the grain (σt,90)
  • glued connections
  • connections with split ring and plate connectors
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SLIDE 11

Structural / Material Behaviour (failure)

dowel type fastener compression

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SLIDE 12

Dowel Type Fasteners loaded in shear

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SLIDE 13

Reinforcements

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SLIDE 14

Reinforcements for Portal Frame Corner

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SLIDE 15

Traditional Timber Structures

single step joint

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SLIDE 16

Thank you for your attention!

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SLIDE 17

7.3

References and further reading

Parisi, M.A. and Piazza, M. (2015). Seismic strengthening and seismic improvement of timber structures. Construction and Building Materials 97, p55-56. Published by Elsevier. Fragiacomo, M., Amadio, C. and Rajgelj, S. (2006). Evaluation of the structural response under seismic actions using non-linear static methods. Earthquake Engineering and Structural Dynamics 35, p1511-1531. Published online 19 June 2006 in Wiley InterScience: www.interscience.wiley.com.