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    Experimental Testing of a Low-Damage Post-Tensioned C-shaped CLT Core-Wall (2020)

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    Type of Content
    Journal Article
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    https://hdl.handle.net/10092/101645
    
    ISSN
    0733-9445
    Collections
    • Engineering: Journal Articles [1644]
    Authors
    Brown J
    Li M
    Palermo A
    Pampanin, Stefano cc
    Sarti F
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    Abstract

    The development of strong and stiff lateral load resisting systems (LLRS) is essential for mid-rise and high-rise timber buildings. On the other hand, within a seismic design philosophy strength/stiffness and ductility/drift capacity typically appear as opposite target parameters, depending on the acceptable level of damage. For improved stiffness and strength, core-wall tubular structural forms are commonly used for taller reinforced concrete buildings. This paper presents an experimental study on a new type of LLRS in cross-laminated timber (CLT). A post-tensioned C-shaped CLT core-wall mainly using screwed connections was designed and tested under uni-directional and bi-directional cyclic loading. It was found that the mixed angle screwed connection solution was the most effective. The highest partial composite action of 60-70% was reached and the core-wall system stiffness at serviceability limit state increased more than four times when compared to a decoupled test with only friction between the CLT panels. The (unbonded) post-tensioning technology provided strong and stiff core-wall base connections with re-centering capability and small residual displacements. The experimental test results confirmed that significant system strength/ stiffness and ductility/drift capacity can be achieved in a post-tensioned C-shaped CLT core-wall system with minimal damage through careful connection detailing.

    Citation
    Brown J, Li M, Palermo A, Pampanin S, Sarti F (2020). Experimental Testing of a Low-Damage Post-Tensioned C-shaped CLT Core-Wall. Journal of Structural Engineering.
    This citation is automatically generated and may be unreliable. Use as a guide only.
    ANZSRC Fields of Research
    40 - Engineering::4005 - Civil engineering::400509 - Structural dynamics
    40 - Engineering::4005 - Civil engineering::400510 - Structural engineering
    40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineering
    Rights
    All rights reserved unless otherwise stated
    http://hdl.handle.net/10092/17651

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    • Investigating the compressive toe of post-tensioned CLT core-walls using particle tracking technology 

      Brown J; Li M; Nokes R; Palermo A; Pampanin, Stefano; Sarti F (2020)
      Post-tensioned timber technology was originally developed and researched at the University of Canterbury (UC) in New Zealand in 2005. It can provide a low-damage seismic design solution for multi-storey mass timber ...
    • Experimental Testing and Analytical Modelling of Single and Double Post-Tensioned CLT Shear Walls 

      Brown J; Palermo A; Pampanin S; Sarti F; Nokes R; Li, Minghao (2022)
      Post-tensioned (PT) timber technology - also called Pres-Lam technology - can provide increased strength/stiffness for mass timber seismic load resisting systems while also providing energy dissipation and re-centering ...
    • Comparison of Force-Based and Displacement-Based seismic design of dissipative post-tensioned rocking timber wall systems 

      Sarti, F.; Palermo, A.; Pampanin, Stefano (University of Canterbury. Civil and Natural Resources Engineering, 2015)
      Based on numerical studies performed by the authors, the paper presents to Force-Based (FBD) and Displacement-Based (DBD) seismic Design provisions for dissipative post-tensioned rocking timber wall (Pres-Lam) systems. At ...
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