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Use of precast prestressed concrete beams in continuous bridge construction

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dc.contributor.author Weerasekara, IRA
dc.contributor.author Jayasinghe, MTR
dc.contributor.editor Dias, WPS
dc.date.accessioned 2022-12-16T04:04:09Z
dc.date.available 2022-12-16T04:04:09Z
dc.date.issued 1995-03
dc.identifier.citation ****** en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/19813
dc.description.abstract Use of precast prestressed concrete beams is a common practice in Sri Lanka. The main advantages being factory production of beams, ease of erection and speed of construction. However there are inherent problems associated in these bridges when multi-spans are adopted. This is because expansion joints over each pier gives rise to problems such as deterioration, maintenance and performance. In coastal roads there are added problems of deterioration. A solution to these problems is the introduction of continuity over piers. However, continuity itself will have a few problems at the design stage which have to be carefully tackled. The problems are design complications arising due to differential creep and shrinkage, thermal movement and the behaviour of the beams over the pier at ultimate limit state. There are four continuity methods currently used in other parts of the world. Out of these, the most suitable type for Sri Lanka has to be selected by considering ease of construction and durability. When continuity is introduced, it is important to ensure that the existing standard sections can be used. The paper gives the details of analysis, design and also areas for further research. en_US
dc.language.iso en en_US
dc.publisher Engineering Research Unit, Faculty of Engiennring, University of Moratuwa en_US
dc.title Use of precast prestressed concrete beams in continuous bridge construction en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Engineering Research Unit, University of Moratuwa en_US
dc.identifier.year 1995 en_US
dc.identifier.conference Industry Related Research 1995 en_US
dc.identifier.place Katubedda en_US
dc.identifier.pgnos pp. 45-57 en_US
dc.identifier.proceeding Proceedings of Symposium on Industry Related Research 1995 en_US


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