Evaluation of slip behavior of self-locking modular steel connection

Modular steel building (MSB) is an exceptional substitute for traditional on-site steel construction. Bolt hole tolerance is provided in inter-modular connections (IMC) to allow positioning of modules which causes a higher initial slip of bolted connection. This study proposes a new connection with...

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Main Authors: Nadeem, Gohar, Safiee, Nor Azizi, Abu Bakar, Nabilah, Abd Karim, Izian, Mohd Nasir, Noor Azline
Format: Article
Published: Elsevier 2022
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author Nadeem, Gohar
Safiee, Nor Azizi
Abu Bakar, Nabilah
Abd Karim, Izian
Mohd Nasir, Noor Azline
author_facet Nadeem, Gohar
Safiee, Nor Azizi
Abu Bakar, Nabilah
Abd Karim, Izian
Mohd Nasir, Noor Azline
author_sort Nadeem, Gohar
collection UPM
description Modular steel building (MSB) is an exceptional substitute for traditional on-site steel construction. Bolt hole tolerance is provided in inter-modular connections (IMC) to allow positioning of modules which causes a higher initial slip of bolted connection. This study proposes a new connection with a four-stage assembly procedure that omits the need for excess hole tolerance in bolted connections and provides higher initial stiffness. The performance of this proposed connection is evaluated using finite element analysis, which has been validated against the existing experimental data from the literature. An analytical study is conducted on two variants of the proposed connection, the first variant with bolts and the second variant with dowel pins, to evaluate the shear force-slip behaviour. The force-displacement curve of the proposed connection is compared with existing models of bolted connections. Results show that the connections with pretension force applied on bolts had good agreement with the traditional four-stage model for bolted connection. Equations provided by established design codes can predict the initial stiffness in IMCs.
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spelling upm.eprints-1013362023-08-18T23:35:01Z http://psasir.upm.edu.my/id/eprint/101336/ Evaluation of slip behavior of self-locking modular steel connection Nadeem, Gohar Safiee, Nor Azizi Abu Bakar, Nabilah Abd Karim, Izian Mohd Nasir, Noor Azline Modular steel building (MSB) is an exceptional substitute for traditional on-site steel construction. Bolt hole tolerance is provided in inter-modular connections (IMC) to allow positioning of modules which causes a higher initial slip of bolted connection. This study proposes a new connection with a four-stage assembly procedure that omits the need for excess hole tolerance in bolted connections and provides higher initial stiffness. The performance of this proposed connection is evaluated using finite element analysis, which has been validated against the existing experimental data from the literature. An analytical study is conducted on two variants of the proposed connection, the first variant with bolts and the second variant with dowel pins, to evaluate the shear force-slip behaviour. The force-displacement curve of the proposed connection is compared with existing models of bolted connections. Results show that the connections with pretension force applied on bolts had good agreement with the traditional four-stage model for bolted connection. Equations provided by established design codes can predict the initial stiffness in IMCs. Elsevier 2022 Article PeerReviewed Nadeem, Gohar and Safiee, Nor Azizi and Abu Bakar, Nabilah and Abd Karim, Izian and Mohd Nasir, Noor Azline (2022) Evaluation of slip behavior of self-locking modular steel connection. Journal of Constructional Steel Research, 197. art. no. 107467. pp. 1-14. ISSN 0143-974X; ESSN: 1873-5983 https://www.sciencedirect.com/science/article/pii/S0143974X2200339X 10.1016/j.jcsr.2022.107467
spellingShingle Nadeem, Gohar
Safiee, Nor Azizi
Abu Bakar, Nabilah
Abd Karim, Izian
Mohd Nasir, Noor Azline
Evaluation of slip behavior of self-locking modular steel connection
title Evaluation of slip behavior of self-locking modular steel connection
title_full Evaluation of slip behavior of self-locking modular steel connection
title_fullStr Evaluation of slip behavior of self-locking modular steel connection
title_full_unstemmed Evaluation of slip behavior of self-locking modular steel connection
title_short Evaluation of slip behavior of self-locking modular steel connection
title_sort evaluation of slip behavior of self locking modular steel connection
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