SCREW REINFORCEMENT ON BEAM-TO-COLUMN DOWEL-TYPE CONNECTION

Cong Zhang, Wen-Shao Chang, Richard Harris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

This study used self-tapping screws with partial threads on the point end to reinforce beam-to-column moment resisting connections. The mechanical properties of the timber-steel-timber connection were significantly improved compared to unreinforced connections. A preliminary calculation method is applied to predict the characteristic moment-resisting capacity of the unreinforced connection. The prediction is shown to be conservative. In the experiments, with a small gap in between, the two timber members in the connection started to bear on each other which shifted the centre of rotation of the connection and caused excessive tensile stresses perpendicular to the grain in the lower part of the connection. The location of the self-tapping screw regarding the design of the connections is addressed.
Original languageEnglish
Title of host publicationProceedings of the World Conference on Timber Engineering 2018
Subtitle of host publication2018 World Conference on timber Engineering, 20 - 23 Aug 2018.
PublisherWCTE
Number of pages6
Publication statusE-pub ahead of print - 22 Aug 2018
EventWorld Conference on Timber Engineering, 2018 - COEX Convention and Exihibition Center Seoul, Seoul, Korea, Republic of
Duration: 20 Aug 201823 Aug 2018

Conference

ConferenceWorld Conference on Timber Engineering, 2018
Abbreviated titleWCTE 2018
CountryKorea, Republic of
CitySeoul
Period20/08/1823/08/18

Fingerprint

Timber
Reinforcement
Tensile stress
Mechanical properties
Steel
Experiments

Cite this

Zhang, C., Chang, W-S., & Harris, R. (2018). SCREW REINFORCEMENT ON BEAM-TO-COLUMN DOWEL-TYPE CONNECTION. In Proceedings of the World Conference on Timber Engineering 2018: 2018 World Conference on timber Engineering, 20 - 23 Aug 2018. WCTE.

SCREW REINFORCEMENT ON BEAM-TO-COLUMN DOWEL-TYPE CONNECTION. / Zhang, Cong; Chang, Wen-Shao; Harris, Richard.

Proceedings of the World Conference on Timber Engineering 2018: 2018 World Conference on timber Engineering, 20 - 23 Aug 2018.. WCTE, 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zhang, C, Chang, W-S & Harris, R 2018, SCREW REINFORCEMENT ON BEAM-TO-COLUMN DOWEL-TYPE CONNECTION. in Proceedings of the World Conference on Timber Engineering 2018: 2018 World Conference on timber Engineering, 20 - 23 Aug 2018.. WCTE, World Conference on Timber Engineering, 2018, Seoul, Korea, Republic of, 20/08/18.
Zhang C, Chang W-S, Harris R. SCREW REINFORCEMENT ON BEAM-TO-COLUMN DOWEL-TYPE CONNECTION. In Proceedings of the World Conference on Timber Engineering 2018: 2018 World Conference on timber Engineering, 20 - 23 Aug 2018.. WCTE. 2018
Zhang, Cong ; Chang, Wen-Shao ; Harris, Richard. / SCREW REINFORCEMENT ON BEAM-TO-COLUMN DOWEL-TYPE CONNECTION. Proceedings of the World Conference on Timber Engineering 2018: 2018 World Conference on timber Engineering, 20 - 23 Aug 2018.. WCTE, 2018.
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abstract = "This study used self-tapping screws with partial threads on the point end to reinforce beam-to-column moment resisting connections. The mechanical properties of the timber-steel-timber connection were significantly improved compared to unreinforced connections. A preliminary calculation method is applied to predict the characteristic moment-resisting capacity of the unreinforced connection. The prediction is shown to be conservative. In the experiments, with a small gap in between, the two timber members in the connection started to bear on each other which shifted the centre of rotation of the connection and caused excessive tensile stresses perpendicular to the grain in the lower part of the connection. The location of the self-tapping screw regarding the design of the connections is addressed.",
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