TY - JOUR
T1 - Shear behaviour of post-tensioned inter-module connection for modular steel buildings
AU - Lacey, Andrew William
AU - Chen, W.
AU - Hao, Hong
AU - Bi, Kaiming
AU - Tallowin, Forrest James
N1 - Funding Information:
The authors acknowledge the financial support from the Australian Government through the Australian Research Council (ARC). The first author acknowledges the support received through the Australian Government Research Training Program Scholarship. The authors acknowledge the support of Dr. Arne Bredin, Mr. Rob Walker, and Mr. Mick Elliss in the civil engineering laboratory at Curtin University.
Funding Information:
The authors acknowledge the financial support from the Australian Government through the Australian Research Council (ARC) . The first author acknowledges the support received through the Australian Government Research Training Program Scholarship. The authors acknowledge the support of Dr. Arne Bredin, Mr. Rob Walker, and Mr. Mick Elliss in the civil engineering laboratory at Curtin University.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/11
Y1 - 2019/11
N2 - In modular steel buildings the inter-module connections are key to the successful site installation of modules and the overall structural behaviour of the assembled building. The existing connection details such as site welding typically require external access during site install, which is not always possible or practical. Post-tensioned bolted steel connections are an enticing solution because they minimise the requirement for site work, allowing for easier internal assembly. However, the existing shear force-displacement model for inter-module connections is inadequate, and the initial load-slip behaviour is not accurately predicted. In this study, a new post-tensioned bolted steel connection is proposed and the prototypes are manufactured. The shear force-displacement and load-slip behaviours are investigated experimentally. The proposed connection is shown to have good initial stiffness in shear, which can be well controlled by the parameters of preload and slip factor. In addition, numerical simulation is conducted and the influence of the preload and slip factor on the load-slip behaviour is investigated. An improved empirical model is developed, and its application is demonstrated for the proposed connection.
AB - In modular steel buildings the inter-module connections are key to the successful site installation of modules and the overall structural behaviour of the assembled building. The existing connection details such as site welding typically require external access during site install, which is not always possible or practical. Post-tensioned bolted steel connections are an enticing solution because they minimise the requirement for site work, allowing for easier internal assembly. However, the existing shear force-displacement model for inter-module connections is inadequate, and the initial load-slip behaviour is not accurately predicted. In this study, a new post-tensioned bolted steel connection is proposed and the prototypes are manufactured. The shear force-displacement and load-slip behaviours are investigated experimentally. The proposed connection is shown to have good initial stiffness in shear, which can be well controlled by the parameters of preload and slip factor. In addition, numerical simulation is conducted and the influence of the preload and slip factor on the load-slip behaviour is investigated. An improved empirical model is developed, and its application is demonstrated for the proposed connection.
KW - Inter-module connection
KW - Modular building
KW - Post-tensioned bolted connection
KW - Slip resistance
KW - Stiffness
UR - http://www.scopus.com/inward/record.url?scp=85073641723&partnerID=8YFLogxK
U2 - 10.1016/j.jcsr.2019.105707
DO - 10.1016/j.jcsr.2019.105707
M3 - Journal article
AN - SCOPUS:85073641723
SN - 0143-974X
VL - 162
JO - Journal of Constructional Steel Research
JF - Journal of Constructional Steel Research
M1 - 105707
ER -