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- W618832321 abstract "The deviation from the designed dimensions of the segments during the construction of a precast segmental bridge deck get carried over incrementally in the span of the deck. To rectify the cumulative deviation in the horizontal alignment or vertical profile of balanced cantilever spans, jacking operations are adopted at the mid-span before casting/erecting the closure block/segment. The jacking forces introduce stresses in the deck, which remain locked during the service of the bridge. The present paper demonstrates a numerical simulation of such stresses and investigates their effect in a bridge constructed in recent years. A typical deck of the selected extra-dosed cable-stayed bridge with box-girder section was analysed by a finite element model. The influences of the self weight of the deck, presence of stay cables, prestressing of tendons, and the mid-jacking operation during construction were included in the analysis. It was observed that although the resultant stresses were within the allowable stresses of the concrete for this particular bridge, they cannot be neglected in an analysis for the service condition." @default.
- W618832321 created "2016-06-24" @default.
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- W618832321 date "2013-01-01" @default.
- W618832321 modified "2023-09-27" @default.
- W618832321 title "Investigation of the stresses due to mid-jacking operation on a precast segmental bridge deck" @default.
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