Standardised timber moment-resisting frames for multistorey buildings: Experimental testing
DOI:
https://doi.org/10.5459/bnzsee.1696Abstract
The paper presents experimental results and findings from several large-scale prototype moment-resisting timber frames. The overarching objective of this research was to provide standardised moment-resisting timber frame connections to support the increased application of timber in multistorey structures in NZ, akin to the ‘Steel Connect’ guide by SCNZ. The project was led by Red Stag Timberlab with support and funding by Callaghan Innovation. Enovate provided structural engineering design/detailing services for several prototype internal beam-column joint subassemblies, consulted on the experimental test set-up, apparatus, loading protocol and preliminary findings. Experimental testing on the sub-assemblies was performed by BRANZ.
The prototype sub-assemblies incorporated either Glue-laminated (Glulam) or Laminated Veneer Lumber (LVL) beams/column elements, and capacity-designed connections consisting of ductile steel plastic hinges/fuses designed to suppress brittle failure in the timber elements and provide energy dissipation/damping. This paper presents findings from the experimental testing to-date, highlights some critical design/detailing issues (identified through experimental testing), compares predicted versus observed frame flexibly, and makes recommendations for future design and research.
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