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dc.contributor.author
Reggiani Manzo, Natalia
dc.contributor.author
Vassiliou, Michalis F.
dc.date.accessioned
2021-08-03T08:17:41Z
dc.date.available
2021-06-29T07:32:21Z
dc.date.available
2021-06-29T08:12:11Z
dc.date.available
2021-08-03T08:17:41Z
dc.date.issued
2021-06
dc.identifier.uri
http://hdl.handle.net/20.500.11850/492005
dc.identifier.doi
10.3929/ethz-b-000492005
dc.description.abstract
In seismic regions, more often than never the dogma that bridge columns need to be firmly connected to the ground leads to huge pile foundations that require as much concrete as the superstructure. This is clearly a non-sustainable design method. To reduce the foundation design moment and possibly avoid the piles foundation, it has been proposed to let the bridge columns uplift and rock. This paper presents quasi-static testing of a 1:5 scale precast restrained rocking bridge column exhibiting negative stiffness. The proposed system is resilient, able to achieve limited to no damage during design earthquakes. It allows prefabrication and quick on-site assembly, which reduces the on-site construction time and traffic impact. As part of this experimental campaign, quasi-static cyclic tests were carried out on a reinforced concrete column allowed to rock on its interface with the foundation and cap-beam. An unbonded tendon was adopted to restrain the columns. The tendon was connected in series to a Belleville spring system to keep the overall post-uplift stiffness of the system negative. Large drifts lead to stress concentrations at the ends of the columns, therefore they were protected by steel jackets. The column was subjected to drift ratios up to 15%. The results show that it returned to its original position with negligible to no residual displacement.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Rocking bridges
en_US
dc.subject
Accelerated bridge construction
en_US
dc.subject
Sustainable seismic design
en_US
dc.subject
Precast bridges
en_US
dc.title
Cyclic test of a precast bridge column for sustainable bridge design
en_US
dc.type
Conference Paper
dc.rights.license
In Copyright - Non-Commercial Use Permitted
ethz.pages.start
C 19547
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
submittedVersion
en_US
ethz.event
8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2021)
en_US
ethz.event.location
Athens, Greece
en_US
ethz.event.date
June 28–30, 2021
en_US
ethz.notes
Conference lecture held on June 29, 2021.
en_US
ethz.grant
Seismic analysis, design and experimental testing of precast controlled-rocking negative-stiffness systems
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02605 - Institut für Baustatik u. Konstruktion / Institute of Structural Engineering::09663 - Vassiliou, Michalis / Vassiliou, Michalis
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02605 - Institut für Baustatik u. Konstruktion / Institute of Structural Engineering::09663 - Vassiliou, Michalis / Vassiliou, Michalis
en_US
ethz.grant.agreementno
ETH-10 18-1
ethz.grant.agreementno
ETH-10 18-1
ethz.grant.agreementno
ETH-10 18-1
ethz.grant.fundername
ETHZ
ethz.grant.fundername
ETHZ
ethz.grant.fundername
ETHZ
ethz.grant.funderDoi
10.13039/501100003006
ethz.grant.funderDoi
10.13039/501100003006
ethz.grant.funderDoi
10.13039/501100003006
ethz.grant.program
ETH Grants
ethz.grant.program
ETH Grants
ethz.grant.program
ETH Grants
ethz.date.deposited
2021-06-29T07:32:33Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-08-03T08:17:48Z
ethz.rosetta.lastUpdated
2022-03-29T10:53:51Z
ethz.rosetta.versionExported
true
ethz.COinS
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