Seismic response of skewed bridges including pounding effects

Show simple item record Kun, C en Yang, Z en Chouw, Nawawi en 2018-12-03T03:36:31Z en 2018-05-01 en
dc.identifier.issn 2092-7614 en
dc.identifier.uri en
dc.description.abstract The seismic vulnerability of skewed bridges had been observed in many past earthquakes. Researchers have found that the in-plane rotation of the girders was one of the main reasons for the vulnerability of these types of bridges. To date, not many experimental works have been done on this topic, especially those including pounding between adjacent structures. In this study, shake table tests were performed on a bridge-abutment system consisting of a straight, 30°, and 45° bridge with and without considering pounding. Skewed bridges with the same fundamental frequency and those having the same girder mass as the straight bridge were studied. Under the loadings considered, skewed bridges with the same frequency as the straight tend to have smaller responses than those with the same mass. The average maximum bending moment developed in the piers of the 30° bridge with the same mass as that of the straight when pounding was not considered was 1.6 times larger than when the frequencies were the same. It was also found that the NZTA recommendations for the seat lengths of skewed bridges could severely underestimate the relative displacements of these types of bridges in the transverse direction, especially when pounding occurs. In the worst case, the average transverse displacement of the 45° bridge was about 2.6 times the longitudinal displacement of the straight, which was greatly over the limit suggested by the NZTAof 1.25 times. en
dc.language English en
dc.publisher Techno-Press en
dc.relation.ispartofseries Earthquakes and Structures en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri en
dc.subject Science & Technology en
dc.subject Technology en
dc.subject Engineering, Civil en
dc.subject Engineering, Geological en
dc.subject Engineering en
dc.subject skewed bridge en
dc.subject pounding en
dc.subject shake table testing en
dc.subject girder unseating en
dc.subject bridge-abutment system en
dc.subject GROUND MOTIONS en
dc.subject HIGHWAY BRIDGES en
dc.subject EARTHQUAKE en
dc.subject PERFORMANCE en
dc.subject EXCITATION en
dc.subject BUILDINGS en
dc.subject UPLIFT en
dc.subject SSI en
dc.title Seismic response of skewed bridges including pounding effects en
dc.type Journal Article en
dc.identifier.doi 10.12989/eas.2018.14.5.467 en
pubs.issue 5 en
pubs.begin-page 467 en
pubs.volume 14 en
dc.rights.holder Copyright: The author en
pubs.end-page 476 en
pubs.publication-status Published en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 744840 en Engineering en Civil and Environmental Eng en
dc.identifier.eissn 2092-7622 en
pubs.record-created-at-source-date 2019-02-01 en

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