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Layered composite entangled wire materials blocks as pre-tensioned vertebral rocking columns

Layered composite entangled wire materials blocks as pre-tensioned vertebral rocking columns
Layered composite entangled wire materials blocks as pre-tensioned vertebral rocking columns
This work focuses on entangled wire materials as an option for use between segments of a novel self-centring bridge pier inspired from the human spine mechanism to increase energy dissipation capability of the pier in rocking. A comprehensive set of free-decay vibration tests was conducted on small-scale columns with and without entangled wire materials. Wooden blocks are used as vertebrae with entangled wire materials as intervertebral disks. The whole system is tied together using a pre-tensioned tendon. Dynamic properties of columns (i.e. frequency and damping ratio) were then identified and compared. It is found that the use of entangled wire materials significantly increases the energy dissipation capacity of the system during rocking. This finding is very encouraging for future use of entangled wire materials composite systems in large-scale testing of the proposed rocking column, while their shear and axial stiffness needs be improved to reduce large shear and axial deformations.
Rocking column, entangled wire material (EWM) layers, vertebral bridge pier, Accelerated bridge construction
0263-8223
153-163
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Ahmadi, Ehsan
f1994ae0-2b3e-43c9-a595-032e801aae70
Gonzalez-Buelga, Alicia
24a77867-2776-4a13-84c9-1ff2a7f0f1de
Zhang, Dayi
d94dcef6-922c-4905-a952-50d96d2fa8bd
Scarpa, Fabrizio
684472c3-1a28-478a-a388-5fd896986c1d
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Ahmadi, Ehsan
f1994ae0-2b3e-43c9-a595-032e801aae70
Gonzalez-Buelga, Alicia
24a77867-2776-4a13-84c9-1ff2a7f0f1de
Zhang, Dayi
d94dcef6-922c-4905-a952-50d96d2fa8bd
Scarpa, Fabrizio
684472c3-1a28-478a-a388-5fd896986c1d

Kashani, Mohammad, Ahmadi, Ehsan, Gonzalez-Buelga, Alicia, Zhang, Dayi and Scarpa, Fabrizio (2019) Layered composite entangled wire materials blocks as pre-tensioned vertebral rocking columns. Composite Structures, 214, 153-163. (doi:10.1016/j.compstruct.2019.02.021).

Record type: Article

Abstract

This work focuses on entangled wire materials as an option for use between segments of a novel self-centring bridge pier inspired from the human spine mechanism to increase energy dissipation capability of the pier in rocking. A comprehensive set of free-decay vibration tests was conducted on small-scale columns with and without entangled wire materials. Wooden blocks are used as vertebrae with entangled wire materials as intervertebral disks. The whole system is tied together using a pre-tensioned tendon. Dynamic properties of columns (i.e. frequency and damping ratio) were then identified and compared. It is found that the use of entangled wire materials significantly increases the energy dissipation capacity of the system during rocking. This finding is very encouraging for future use of entangled wire materials composite systems in large-scale testing of the proposed rocking column, while their shear and axial stiffness needs be improved to reduce large shear and axial deformations.

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Kashani et al Accepted Manuscript - Accepted Manuscript
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More information

Accepted/In Press date: 6 February 2019
e-pub ahead of print date: 7 February 2019
Published date: 15 April 2019
Keywords: Rocking column, entangled wire material (EWM) layers, vertebral bridge pier, Accelerated bridge construction

Identifiers

Local EPrints ID: 428018
URI: http://eprints.soton.ac.uk/id/eprint/428018
ISSN: 0263-8223
PURE UUID: 4a9a0d49-35fc-46f8-84e6-77ecde08a4d1
ORCID for Mohammad Kashani: ORCID iD orcid.org/0000-0003-0008-0007

Catalogue record

Date deposited: 07 Feb 2019 17:30
Last modified: 07 Oct 2020 05:24

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