Journal
JOURNAL OF STRUCTURAL ENGINEERING
Volume 144, Issue 7, Pages -Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)ST.1943-541X.0002074
Keywords
Dowelled connections; Cross-laminated timber; Laminated veneer lumber; Ductility; Cyclic loading; Mixed-mode failure; Mode cross-over
Funding
- Natural Hazard Research Platform of New Zealand
- Department of Civil & Natural Resources Engineering at the University of Canterbury
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This paper presents an experimental study on dowelled connections in cross-laminated timber (CLT) and laminated veneer lumber (LVL) using phi 20-mm mild steel dowels and internal steel plates. Connections designed to fail in brittle row shear and group tear-out were tested under monotonic loading to assess the validity of analytical models from literature and code provisions. Connections designed to provide nonlinearity before failure and thus produce ductility were tested under both monotonic and cyclic loading to study the influence of cyclic loading on ductility and the possibility of mode cross-over. It was found that cross layers in CLT improve ductility. Furthermore, mode cross-over from ductile response to brittle failure was observed in both CLT and LVL connections. Nevertheless, a good amount of ductility was achieved in all layouts (except the LVL connections designed for group tear-out failure) before cross-over to brittle failure occurred.
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