The University of Southampton
University of Southampton Institutional Repository

Nonlinear rocking dynamics of pre-tensioned single rigid blocks under harmonic base excitation

Nonlinear rocking dynamics of pre-tensioned single rigid blocks under harmonic base excitation
Nonlinear rocking dynamics of pre-tensioned single rigid blocks under harmonic base excitation

The rocking mechanism has been widely recognized as a beneficial technique to reduce structural damage arising from lateral excitations particularly earthquake loading, and hence, segmental pre-tensioned bridge piers have been recently emerged due to their self-centring property accompanied by accelerated construction of such structures. Hence, this study formulates the rocking dynamics of tied pre-tensioned single rigid blocks as an initial study for better understanding of dynamics of segmental pre-tensioned bridge piers. The nonlinear equation of rocking motion is then numerically solved under different range of base harmonic excitations. To achieve this, the rocking initiation condition is considered to determine initial conditions of rocking motion, an implicit solution is adopted to solve the equation of rocking motion and determine rocking response. Finally, a study is performed on a specific composite tied block to investigate effects of geometry and initial pre-tensioning force of the cable on the dynamic behaviour of the block. This study can find use in better understanding of segmental pre-tensioned columns.

1742-6588
Ahmadi, E.
f1994ae0-2b3e-43c9-a595-032e801aae70
Kashani, M. M.
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Ahmadi, E.
f1994ae0-2b3e-43c9-a595-032e801aae70
Kashani, M. M.
d1074b3a-5853-4eb5-a4ef-7d741b1c025d

Ahmadi, E. and Kashani, M. M. (2019) Nonlinear rocking dynamics of pre-tensioned single rigid blocks under harmonic base excitation. Journal of Physics: Conference Series, 1264 (1). (doi:10.1088/1742-6596/1264/1/012006).

Record type: Article

Abstract

The rocking mechanism has been widely recognized as a beneficial technique to reduce structural damage arising from lateral excitations particularly earthquake loading, and hence, segmental pre-tensioned bridge piers have been recently emerged due to their self-centring property accompanied by accelerated construction of such structures. Hence, this study formulates the rocking dynamics of tied pre-tensioned single rigid blocks as an initial study for better understanding of dynamics of segmental pre-tensioned bridge piers. The nonlinear equation of rocking motion is then numerically solved under different range of base harmonic excitations. To achieve this, the rocking initiation condition is considered to determine initial conditions of rocking motion, an implicit solution is adopted to solve the equation of rocking motion and determine rocking response. Finally, a study is performed on a specific composite tied block to investigate effects of geometry and initial pre-tensioning force of the cable on the dynamic behaviour of the block. This study can find use in better understanding of segmental pre-tensioned columns.

Text
Nonlinear rocking dynamics - Version of Record
Available under License Creative Commons Attribution.
Download (784kB)

More information

Published date: 24 July 2019
Venue - Dates: 13th International Conference on Recent Advances in Structural Dynamics, RASD 2019, Lyon, France, 2019-04-15 - 2019-04-17

Identifiers

Local EPrints ID: 435360
URI: https://eprints.soton.ac.uk/id/eprint/435360
ISSN: 1742-6588
PURE UUID: 0750fa79-c590-4bdb-b477-832307a8fb18
ORCID for M. M. Kashani: ORCID iD orcid.org/0000-0003-0008-0007

Catalogue record

Date deposited: 31 Oct 2019 17:30
Last modified: 10 Dec 2019 01:27

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×