Open Access
ARTICLE
Mechanical Experimental Study on Tensile Bolted Connections of Crosslaminated Timber
Chenxiao Su, Haibei Xiong*
Department of Disaster Mitigation for Structures, Tongji University, Shanghai, 200092, China
* Corresponding Author: Haibei Xiong. Email:
Structural Durability & Health Monitoring 2020, 14(1), 81-94. https://doi.org/10.32604/sdhm.2020.08221
Received 07 August 2019; Accepted 30 October 2019; Issue published 01 March 2020
Abstract
In order to explore a kind of high-strength, earthquake-resistant, economical and suitable connection, 4 groups of cross-laminated timber wall-to-floor
and wall-to-wall bolted connections were tested under monotonic and cyclic loading. The deformation characteristics and failure modes of the cross-laminated timber wall-to-floor and wall-to-wall bolted connections were exploited. Load-slip
curves, bearing capacity, yielding point, stiffness and ductility of each group of
specimens were analyzed. The test results indicate that the loading process of
cross-laminated timber bolted connections under tension can be categorized as
five stages, namely the elastic stage, the slip stage, the embedding stage, the yielding stage and the ultimate stage. The ultimate tensile capacity of cross-laminated
timber bolted wall-to-floor connections is 2.67 times that of the wall-to-wall
bolted connections. Compared with cross-laminated timber self-tapping screwed
connections, the ultimate tensile capacity of the cross-laminated timber wall-to-
floor bolted connections is 2.70 times that of the self-tapping screwed connections, and the ultimate tensile capacity of the cross-laminated timber wall-to-wall
bolted connections is 3.83 times that of the self-tapping screwed connections. The
cross-laminated timber bolted connections have larger yielding displacement and
wider plastic range, and they are more energy dissipative and more ductile.
Furthermore, the cost of the cross-laminated timber wall-to-floor bolted connections is 46% that of the self-tapping screwed connections, while the cost of
cross-laminated wall-to-wall bolted connections is 53% that of the self-screwed
connections.
Keywords
Cite This Article
Su, C., Xiong, H. (2020). Mechanical Experimental Study on Tensile Bolted Connections of Crosslaminated Timber.
Structural Durability & Health Monitoring, 14(1), 81–94. https://doi.org/10.32604/sdhm.2020.08221