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Redistribution of internal forces in composite concrete girders made continuous vs. time

DOI: 10.2298/fuace1101147m

Keywords: composite structures , concrete , construction phases , creep , shrinkage , experimental research , nonlinear analysis

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Abstract:

Research on the long-term behavior of composite concrete girders made continuous is presented in the paper. Concrete precast element is cracked under construction load. Creep and differential shrinkage of precast and in-situ cast part of the girder also induce stresses in a structure. The subject of this investigation is redistribution of section forces in course of time for concrete girders subjected to change of the structural system. The aim of investigation is to verify design models and analytical procedures by experimental research.

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