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Article: Long-Term Behavior of Prestressed Concrete Bridges with Corrugated Steel Webs

TitleLong-Term Behavior of Prestressed Concrete Bridges with Corrugated Steel Webs
Authors
Issue Date2017
PublisherASCE. The Journal's web site is located at http://www.pubs.asce.org/journals/be.html
Citation
Journal of Bridge Engineering, 2017, v. 22 n. 8, p. 04017040 How to Cite?
AbstractAlthough prestressed concrete (PC) bridges with corrugated steel webs have become a promising form of bridges, their long-term behavior is not well understood. A study of their long-term behavior is reported. A numerical model to account for the creep and shrinkage of concrete and tendon relaxation is formulated and verified by test. As the assumption that plane sections remain plane, commonly adopted in Euler-Bernoulli and Timoshenko beam theories, is not valid, an extended sandwich beam theory is employed, considering the presence of diaphragms and external tendons. The long-term behavior of a typical bridge of this type is studied and compared with that of conventional PC bridges with flat steel webs and concrete webs. The effects of diaphragm and interaction between web shear deformation and local flange bending of the bridge are found to relieve with time. Moreover, the long-term deflection of this type of bridges is larger than that of their counterparts.
Persistent Identifierhttp://hdl.handle.net/10722/248395
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCHEN, X-
dc.contributor.authorPANDEY, M-
dc.contributor.authorBai, Z-
dc.contributor.authorAu, FTK-
dc.date.accessioned2017-10-18T08:42:31Z-
dc.date.available2017-10-18T08:42:31Z-
dc.date.issued2017-
dc.identifier.citationJournal of Bridge Engineering, 2017, v. 22 n. 8, p. 04017040-
dc.identifier.urihttp://hdl.handle.net/10722/248395-
dc.description.abstractAlthough prestressed concrete (PC) bridges with corrugated steel webs have become a promising form of bridges, their long-term behavior is not well understood. A study of their long-term behavior is reported. A numerical model to account for the creep and shrinkage of concrete and tendon relaxation is formulated and verified by test. As the assumption that plane sections remain plane, commonly adopted in Euler-Bernoulli and Timoshenko beam theories, is not valid, an extended sandwich beam theory is employed, considering the presence of diaphragms and external tendons. The long-term behavior of a typical bridge of this type is studied and compared with that of conventional PC bridges with flat steel webs and concrete webs. The effects of diaphragm and interaction between web shear deformation and local flange bending of the bridge are found to relieve with time. Moreover, the long-term deflection of this type of bridges is larger than that of their counterparts.-
dc.languageeng-
dc.publisherASCE. The Journal's web site is located at http://www.pubs.asce.org/journals/be.html-
dc.relation.ispartofJournal of Bridge Engineering-
dc.titleLong-Term Behavior of Prestressed Concrete Bridges with Corrugated Steel Webs-
dc.typeArticle-
dc.identifier.emailAu, FTK: francis.au@hku.hk-
dc.identifier.authorityAu, FTK=rp00083-
dc.identifier.doi10.1061/(ASCE)BE.1943-5592.0001074-
dc.identifier.hkuros281306-
dc.identifier.volume22-
dc.identifier.issue8-
dc.identifier.spage04017040-
dc.identifier.epage04017040-
dc.identifier.isiWOS:000417464100009-

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